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øæýúùóùÙð?, 2002, êãß 10, < 2, â. 115-136

üáô 552.48

?ôóùÙðý? ôùõøóæôûÔ ÕæúÙæ÷ Ôúôû, ÷ùú׿Ùð?: øæýúùóùÙð? ð õð÷æúÔó?÷Ô? ÿúù÷ùõæýúð?
? 2002 ,,. Ô. ó. øÒ~ëÝ
* ðÜâêÛêëê ,,ÒãÞã,,ÛÛ ëÜÀi ßÒâêããÚÒÜÛØ, äÒêã,,éÛÛ, ßÛÜÒÞã,,ÛÛ Û ,,ÒãiÛßÛÛ úÔ÷ 109017 õãâÝ,, ûêãßãÜÒêÜÀØ äÒ., 35, úãââÛfl; e-mail: alp@igem.ru

øãâêëäÛÞ , ÒÝ^Û 16.03.01 ,,.

ñÜ~ÛêÒÞÈÜfl ~âêÈ äãÞÛßÒêßãéÛ~ÒâÝã,,ã ÝãßäÞÒÝâ ÕÒ,,ÒÜâÝÛÒ ÔÝÛ (?-ñ ÷ã,Ò,,ÛÛ) âÞãÚÒÜ äããßÛ ÜãêãÑÛêã,ã,,ã ÝãßäÞÒÝâ, âëÒâê,ÒÜÜã äÒÒÇãêÜÜÀßÛ , iãÒ ,ëi Ò,,ÛãÜÞÈÜã-ßÒêßãéÛ~ÒâÝÛi âãÇÀêÛØ - ,,ÜëÞÛêã,ã,,ã (ÙÒÜ,ÛÞÈâÝãÒ ,Òßfl) Û ÝÞã,,Ûêã,ã,,ã (ôÞÒãÜâÝãÒ ,Òßfl). ?ÝÞã,,ÛêÛÑ^Ûfl äãfl,ÞÒÜ ÞÛ?È Ü êÒi ë~âêÝi, Ýë äãÜÛÝÞ ,ããâãÒÚÛØ éÞÛ. ôÝ ä,ÛÞã, êã ÑãÜÀ äÞâêÛ~ÒâÝÛi Òéãß^ÛØ, ÒÚÒ - ÜÒÒéãßÛã,ÜÜÀÒ ë~âêÝÛ ,,ÜëÞÛêã,. ðÑë~ÒÜÛÒ ßÛÜÒÞÈÜÀi ,Üã,ÒâÛØ äãÝÑÞã ëßÒÒÜÜë ÝêÛ,ÜãâêÈ ,ãÀ ,ã éÞÛÒ ( a H2 O < 0.4) äÛ T = 730Àû Û Pmin = 19 ÝÇ Ü äÛÝÒ ÝÞã,,Ûêã,ã,,ã ßÒêßãéÛÑß. øÛ êÝÛi äßÒêi äããÀ ãâÜã,Üã,,ã âãâê, ÜÒ äã,ÒÚÒÜÀ ÜêÒÝâÛâë. óãÝÞÈÜã Ñ,ÛêÀÒ Ò,,ÒââÛ,ÜÀÒ äÒãÇÑã,ÜÛfl éÛÝâÛëêâfl ã ~ 500Àû Û 6 ÝÇ (é^Ûfl äÛãêã,Ài ßéÛÇãÞÛêã,). ôÛâêÞÞÀ ,,Üê , ÝÞã,,Ûêi ÛßÒê ÑãÜÞÈÜãÒ âêãÒÜÛÒ: ß,,ÜÒÑÛÞÈÜÀÒ fl, ãÇÑã,ÜÜÀÒ ÒÒ äÛ ,,ÜëÞÛêã,ãß ßÒêßãéÛÑßÒ, ãÇâêê êãÜÝÛßÛ (~ 200 ßÝß) ÚÒÞÒÑÛâêÀßÛ ÝØßßÛ ÝÞã,,Ûêã,ã,,ã êä. × ÜÒÝãêãÀi fli ,âêÒ~êâfl âêÛÜ,,ÒÀ - ßÛÝãêÒÛÜÀ, ÑÞÒ~ÒÜÜÀÒ "ÝÞã,,Ûêã,Àß" ,,Üêãß, ãÇÞÛÒ ÒÑÝÛß äÒÒiããß Ý ,ßÒÒßë ",,ÜëÞÛêã,ãßë" ,,Üêë. õãÒÞÛã,ÜÛÒß ëâêÜã,ÞÒÜã, ~êã ÛééëÑÛãÜÜÀØ äã^Òââ Ü ,,ÜÛ^Ò âêÛÜ,,Ò-,ßÒÛØ ,,Üê äããÞÚÞâfl ãÝãÞã 0.8 ßÞÜ. ÞÒê Û Ñ,Ò?ÛÞâfl äÛ ãiÞÚÒÜÛÛ ÝÞã,,Ûêã, ã êÒßäÒêëÀ 600Àû, Ýã,, ÛééëÑÛãÜÜÀØ ßââãäÒÒÜãâ âêÞ ÜÒééÒÝêÛ,ÜÀß. øÛ ÞÛÜÒØÜãß ÛÑßÒÜÒÜÛÛ êÒßäÒêëÀ Û ,ÞÒÜÛfl êã âããê,Òêâê,ëÒê âÝããâêÛ ãiÞÚÒÜÛfl 160Àû/ßÞÜ. ÞÒê Û âÝããâêÛ Ýâ,,ëß^ÛÛ 3 âß/,,ã. úâ~ÒêÜfl êÒßäÒêë ÑÝÀêÛfl Ar-âÛâêÒßÀ , ßéÛÇãÞÒ Þfl äãÞë~ÒÜÜÀi âÝããâêÒØ ãiÞÚÒÜÛfl âãâê,ÞflÒê 510-590Àû, ê.Ò. êÛã,ÝÛ Ar-Ar ,ãÑâê ßéÛÇãÞ äÛiãflêâfl Ü êÒßäÒêëÜÀØ ÛÜêÒ,Þ Ò,,ÒââÛ,ÜãØ âêÛÛ. û ë~Òêãß ÇãÞÈ?ã,,ã ÑÇãâ ÜÜÀi U-Pb, Sm-Nd Û Rb-Sr êÛã,ÜÛfl äÛÜÛßÒêâfl, ~êã äÛÝ ÝÞã,,Ûêã,ã,,ã êä, äÛ ÞÛêÒÞÈÜãâêÛ ÒÝãßäÒââÛÛ 0.8 ßÞÜ. ÞÒê, âããê,Òêâê,ëÒê Ar-Ar ,ãÑâêë ßéÛÇãÞ 448-455 ßÞÜ. ÞÒê.

øã^Òââ ÝãÜ,Ò,,ÒÜêÜã,,ã ,ÑÛßãÒØâê,Ûfl ÝãÜêÛÜÒÜêÞÈÜÀi äÞÛê (ÝãÞÞÛÑÛfl) êÛê , âÒÇÒ ÜÒßÞã Ñ,,ãÝ. ÷ÒÝãêãÀÒ ÛââÞÒã,êÒÞÛ äãÞ,,ê, ~êã âëÇëÝ^Ûfl ßãÜãØ ÝãÜêÛÜÒÜêÞÈÜãØ ÝãÀ ,ããÇÒ ÜÒ,ãÑßãÚÜ ,âÞÒâê,ÛÒ ãêÛ^êÒÞÈÜãØ äÞãêÜãâêÛ (äÞ,ë~ÒâêÛ) ÝãÜêÛÜÒÜêÞÈÜãØ ÞÛêãâéÒÀ äã ãêÜã?ÒÜÛ Ý âêÒÜãâéÒÒ (Cloos, 1982 Û ââÀÞÝÛ , ÜÒØ). ×ßÒâêÒ â êÒß ÒÑëÞÈêêÀ âÛâêÒßêÛ~ÒâÝÛi ÛââÞÒã,ÜÛØ ëÞÈê,ÀâãÝãÇÜÀi ÝãßäÞÒÝâã, (ûãÇãÞÒ,, ?^ÝÛØ, 1989; Smith, 1984; Chopin, 1987; Sobolev, Shatsky, 1990; Zhang et al., 1995; "When continents collide...", 1998) äãÝÑÀ,ê, ~êã ãÝÛÜÀ ÝãÜêÛÜÒÜêã, ßã,,ëê äã,,ëÚêÈâfl Ü ,,ÞëÇÛÜÀ 90 Ýß Û ÇãÞÒÒ, ,,Ò âêÇÛÞÒÜ ÝãâÛê, ÞßÑ Û ë,,ÛÒ ëÞÈê,ÀâãÝãÇÜÀÒ éÑÀ Û ßÛÜÒÞÈÜÀÒ ââã^Û^ÛÛ. ×ãÑÜÛÝÒê ,ãäãâ (Schreyer, 1995): ÝÝã, ßÒiÜÛÑß äãÒß Ü äã,ÒiÜãâêÈ ÝëäÜÀi ÝãÜêÛÜÒÜêÞÈÜÀi ÇÞãÝã,? øÛ ,âÒß ßÜã,,ããÇÑÛÛ âããê,Òêâê,ëÛi ,,ÒãêÒÝêãÜÛ~ÒâÝÛi ßãÒÞÒØ (âßãêÛêÒ ãÇÑãÀ , Çã-

êi (áãÇÒ^ã,, ôÛfl?ÝÛÜ, 1994; Maruyama et al., 1996)) ãê,Òê Ü êãê ,ãäãâ ã âÛi äã ÜÒ ÜØÒÜ. øã,,Òââ , ßÒêãi ~ÛâÞÒÜÜã,,ã (ÝãßäÈêÒÜã,,ã) ßãÒÞÛã,ÜÛfl ,,ÒãÛÜßÛ~ÒâÝÛi äã^Òââã, (Schmeling et al., 1999; Ellis et al., 1999; Burg, Podladchikov, 2000) äãÑ,ãÞflÒê äÛâêëäÛêÈ Ý ÑÇãêÝÒ Û êÒâêÛã,ÜÛ ßãÒÞÒØ äã,,ëÚÒÜÛfl Û Ýâ,,ëß^ÛÛ ,ÀâãÝãÇÜÀi ÝãßäÞÒÝâã, äãâÒâê,ãß ~ÛâÞÒÜÜÀi ÝâäÒÛßÒÜêã,. ð ÑÒâÈ ÛâÝÞ~ÛêÒÞÈÜã ,ÚÜë ãÞÈ ßãÚÒê âÀ,,êÈ ÝãÞÛ~Òâê,ÒÜÜfl ÛÜéãß^Ûfl äã P-T êÒÜß ßÒêßãéÛÑß (ôãÛÝã,âÝÛØ, 1995; øÒ~ëÝ Û ., 1996; Gerya et al., 2000), âÝããâêflß êÒßÞÈÜãØ ,ãÞ^ÛÛ Û ,ÒêÛÝÞÈÜã,,ã äÒÒßÒÒÜÛfl äãã , ÞÛêãâéÒÒ (Perchuk, Philippot, 2000 Û ââÀÞÝÛ , ÜÒØ), äãÞë~ÒÜÜÀß â äãßãÈ äÒêãÞã,,Û~ÒâÝÛi ÛââÞÒã,ÜÛØ äÛãÜÀi ãÇÑ^ã,. åÒÞÈ êãØ âêêÈÛ - ã^ÒÜÛêÈ âÝããâêÛ êÒßäÒêëÜãØ Û ÇÛ~ÒâÝãØ ,ãÞ^ÛÛ ÝÞã,,Ûêã, ÛÑ äãÞÛßÒêßãéÛ~ÒâÝã,,ã ÝãßäÞÒÝâ ÕÒ,,ÒÜ ÔÝâ, ?-ñ ÷ã,Ò,,Ûfl, ãÇÑã,ÜÛÒ Û Ýâ,,ëß^Ûfl Ýãêã-

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ã,,ã â,flÑÜÀ â ÝÞÒãÜâÝãØ ÝãÞÞÛÑÛÒØ (Boundy et al., 1996, 1997). ?êÛ ÜÜÀÒ Çëëê ÛâäãÞÈÑã,ÜÀ Þfl ÝãÒÝêÜãØ ÛÜêÒäÒê^ÛÛ Ar-Ar ,ãÑâê ßéÛÇãÞ (Boundy et al., 1996) Û ëâêÜã,ÞÒÜÛfl ÇâãÞêÜã,,ã ,ãÑâê ÝÞã,,Ûêã,ã,,ã ßÒêßãéÛÑß.

ÙæùóùÙð?æûôÔ? ûðýüÔåð? ð ùû÷ù×÷?æ ?ýÔø? õæýÔõùúþðñõÔ (ùÕñùú) øãÞÛßÒêßãéÛ~ÒâÝÛÒ ÝãßäÞÒÝâÀ ?-ñ ÷ã,Ò,,ÛÛ, äãâêÛÛÒâfl Ü ÒâflêÝÛ êÀâfl~ Ý,øæýúùóùÙð? êãß 10 < 2 2002

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ýÇÞÛ^ 1. ùâÜã,ÜÀÒ êäÀ ßÒêßãéÛÑß äãã ÜãêãÑÛêã,ã,,ã âãâê, , ÝãßäÞÒÝâÒ ÕÒ,,ÒÜ ÔÝâ, ÷ã,Ò,,Ûfl (äã ÞÛêÒêëÜÀß ÜÜÀß, âß. ââÀÞÝÛ , êÒÝâêÒ) ?êä ßÒêßãéÛÑß ÙÜëÞÛêã,ÀØ õÛÜÒÞÈÜfl ââã^Û^Ûfl Pl + Di (Çã,,êÀØ Al) + + GtrMg Á Opx Á Scp Á Á Hbl Á Spl GtrFe + Omp + Qtz + Par + + Phn + Amf + Ep + Rut P-T ëâÞã,Ûfl 800-850ÀC, < 10 ÝÇ ÔÇâãÞêÜÀØ ,ãÑâê, ßÞÜ. ÞÒê 896-945 (U-Pb, Sm-Nd, Rb-Sr ßÒêãÀ)

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670-800ÀC, 14-21 ÝÇ 450 Á 10 (^ÛÝãÜ, U-Pb ßÒêã), 462 Á 42 (ÞÞÜÛê, âéÒÜ, äÛãê. U-Pb) 507 Á 109 (Rb-Sr) 442 Á 12 (,,Üê-äãã, Sm-Nd ßÒêã) 421 Á 29 (,,Üê, ãßé^Ûê, äÛãê Sm-Nd) 500-700ÀC, 6-10 ÝÇ 448-455 (ßéÛÇãÞ, Ar-Ar ßÒêã) 429-463 (éÒÜ,,Ûê, Ar-Ar ßÒêã)

êÜÀi ÝÛÞãßÒêã,, fl,Þflêâfl ëÜÛÝÞÈÜÀß äãÞÛ,,ãÜãß Þfl ÛÑë~ÒÜÛfl ?ÛãÝã,,ã âäÒÝê äãÇÞÒß, â,flÑÜÜÀi â ,ÀâãÝãÇÜÀß ßÒêßãéÛÑßãß Û ,,ÒãÛÜßÛÝãØ ãÇÞâêÒØ ÝãÜ,Ò,,ÒÜ^ÛÛ Û Û,Ò,,ÒÜ^ÛÛ ÞÛêãâéÒÜÀi äÞÛê. × ÝÞÒãÜâÝãØ ÛâêãÛÛ Ò,,ÛãÜ ,ÀÒÞflÒêâfl êä ÝëäÜãßâ?êÇÜãØ ÝãÞÞÛÑÛÛ ÝãÜêÛÜÒÜêã, (ó,ÒÜêÛÛ Û ÕÞêÛÛ), äÛ,Ò?ÛØ Ý ãã,,ÒÜÒÑë Û ëêãÞÒÜÛ ÝãÀ (Krogh, 1977). øãâÞÒã,,?fl Ñ êÛß ,,ÞãÇÞÈÜfl âßÒÜ ,,ÒãÛÜßÛ~ÒâÝãØ ãÇâêÜã,ÝÛ (âÚêÛÒ âêflÚÒÜÛÒ) äÛ,ÒÞ Ý ÝãÞÞäâë ÝãÞÒãÜâÝã,,ã ãã,,ÒÜ. áÞfl ÛÑë~ÒÜÛfl êÛi äã^Òââã, ,ÒâÈß äÛ,ÞÒÝêÒÞÈÜÀ , âßÒÚÜÀi ,ÀâãÝãÇÜÀi ÇÞãÝ - ñäÜÀØ ÙÜÒØâã,ÀØ ØãÜ Û ÝãßäÞÒÝâ ÕÒ,,ÒÜ ÔÝâ. øÒ,ÀØ ÛÑ ÜÛi fl,ÞflÒêâfl ãÝÛÜÜãØ ~âêÈ ÕÞêÛØâÝã,,ã Ûê Û ÜiãÛêâfl , ,êãiêãÜÜãß ÑÞÒ,,ÜÛÛ. æ,,ã ,ãÑÀßÜÛÒ äãÛâiãÛÞã , ãÇâêÜã,ÝÒ âêflÚÒÜÛfl (Bounde et al., 1996; Andersen, 1997). ×êããØ ÝãßäÞÒÝâ, ÜãÇããê, fl,ÞflÒêâfl ÞÞãiêãÜãß, ,À,ÒÒÜÜÀß , äãië ÝÞÒãÜâÝãØ ÝãÞÞÛÑÛÛ , âÒÜÛÒ ,,ãÛÑãÜêÀ ÑÒßÜãØ ÝãÀ (Boundy et al., 1996). øããÀ, ßÒêßãéÛÑã,ÜÜÀÒ , ëâÞã,Ûfli ÝÞã,,Ûêã,ãØ é^ÛÛ ßÒêßãéÛÑß, ,âêÒ~êâfl ÝÝ , ,êãiêãÜÜãØ ~âêÛ ÑÒÑ, êÝ Û , ÞÞãiêãÜÜãØ (Krogh, Carswell, 1995). øãÞÛßÒêßãéÛ~ÒâÝÛØ ÝãßäÞÒÝâ ÕÒ,,ÒÜ ÔÝâ (Ûâ. 1), Ýãêããßë ëÒÞflÒêâfl ãâÜã,ÜãÒ ,ÜÛßÜÛÒ , ÜÜãØ ÇãêÒ, äÒâê,ÞÒÜ , âêëÝêëÜãß äÞÜÒ âÒÛØ ÝããÇÑÜÀi äãÝã,ã,, Ü,ÛÜëêÀi Ü äããÀ ñäÜã,,ã ÙÜÒØâã,ã,,ã ØãÜ (Roberts, Gee, 1985). ôãÜêÝê ßÒÚë ÝãßäÞÒÝâßÛ êÒÝêãÜÛ~ÒâÝÛØ, â Ñ,ÛêÛÒß ÑãÜÀ äÞâêÛ~ÒâÝÛi Òéãß^ÛØ (shear-zone), ,ÀäãÞÜÒÜÜãØ äããßÛ ÝÞã,,Ûêã,ãØ é^ÛÛ ßÒêßãéÛÑß. øããÀ ÝãßäÞÒÝâ ÕÒ,,ÒÜ ÔÝâ âã âêëÝêëÜÀß ÜÒâã,,ÞâÛÒß äÒÒÝÀ,êâfl âÒÜÒÒ,ãÜâÝÛßÛ ÝãÜ,,ÞãßÒêßÛ þÒÜâéÈãâÝã,,ã (Frensfjorden) ÇââÒØÜ (Wenberg, Milnes, 1994). × ÑäÜãØ ~âêÛ ÝãßäÞÒÝâ äãÀ,Òêâfl ôãââÜÒâÝÛß (Krossnes) ,,ÜÛêÜÀß ÛÜêëÑÛ,ãß, ÛßÒøæýúùóùÙð? êãß 10 < 2 2002

Ûß Rb-Sr ÛÑãêãäÜÀØ ,ãÑâê 430 Á 6 ßÞÜ. ÞÒê (Fossen, Ingdahl, 1988). øãêãÞÛêãß ÝãßäÞÒÝâ ÕÒ,,ÒÜ ÔÝâ âÞëÚê äÒÛßëÒâê,ÒÜÜã ßÒêßãéÛÑã,ÜÜÀÒ äããÀ ÜãêãÑÛêã,ã,,ã ÝãßäÞÒÝâ, âãâê, ÝãêãÀi ßÒÜflÒêâfl ãê ßÒêÜãêãÑÛêã, ã ßÒê,,ÇÇã (Austrheim, Griffin, 1985). ûÒÛ ßÒêÜãêãÑÛêã, ßãÚÜã ,âêÒêÛêÈ ÞÛÜÑã,ÛÜÀÒ êÒÞ ?äÛÜÒÞÒ,Ài ÞÒ^ãÞÛêã,. ÷ ÜÒÝãêãÀi ë~âêÝi ßÒêÜãêãÑÛêÀ ââã^ÛÛëê â ~ÜãÝÛêßÛ Û ßÜ,,ÒÛêßÛ. ×ÜÒÒÜÛÒ ÝãßäÞÒÝâ äãÛâiãÛÞã äÛ 1000Àû Û ßÝâÛßÞÈÜãß ,ÞÒÜÛÛ ~ 9 ÝÇ (Austheim, Griffen, 1985) ,ã ,Òßfl ÙÒÜ,ÛÞÈâÝã,,ã êä ãã,,ÒÜÛÛ (Cohen et al., 1988; Austrheim, Mork, 1988). ðÑãêãäÜÀÒ êÛã,ÝÛ äÛiãflêâfl Ü ÛÜêÒ,Þ 1300-870 ßÞÜ. ÞÒê (Scharer, 1980). úÑÇãâ ÑÜ~ÒÜÛØ, ,ãÑßãÚÜã, â,flÑÜ â ~âêÛ~ÜÀß Üë?ÒÜÛÒß ÛÑãêãäÜãØ âÛâêÒßÀ äÛ êÒßÞÈÜÀi âãÇÀêÛfli, ÝãêãÀßÛ Çã,,ê ÛâêãÛfl Ò,,ÛãÜ. × ~âêÜãâêÛ, , ÝãßäÞÒÝâÒ ÕÒ,,ÒÜ ÔÝâ ,ÀÒÞflÒêâfl êÛ ,,Þ,ÜÀi ßÒêßãéÛ~ÒâÝÛi âãÇÀêÛfl (êÇÞ. 1), Ñßi Û âÛÞ ÝãêãÀi âã ,ÒßÒÜÒß ÑêëiÞÛ: (1) ÷ âßãß ÜÜÒß êäÒ ,ãÞ^ÛÛ ÜãêãÑÛêã,ÀØ ÝãßäÞÒÝâ äã,Ò,,âfl ,,ÞãÇÞÈÜãØ äÒÒÝÛâêÞÞÛÑ^ÛÛ , ëâÞã,Ûfli ,,ÜëÞÛêã,ãØ é^ÛÛ (T = 800-850ÀC Û P < 10 ÝÇ). × Üã,ããÇÑã,ÜÜë ßÛÜÒÞÈÜë ââã^Û^Û ,ã?ÞÛ äÞ,,ÛãÝÞÑ + ÛãäâÛ (Çã,,êÀØ Al) + ,,Üê Á ãêãäÛãÝâÒÜ Á Á âÝäãÞÛê Á ã,,ã,fl ãÇßÜÝ Á ?äÛÜÒÞÈ (Austrheim, Griffin, 1985; Cohen et al., 1988). ù^ÒÜÝÛ ÇâãÞêÜã,,ã ,ãÑâê (U-Pb, Sm-Nd, Rb-Sr ßÒêãÀ) Þfl êã,,ã âãÇÀêÛfl Üiãflêâfl , äÒÒÞi 896-945 ßÞÜ. ÞÒê (Cohen et al., 1988; Burton et al., 1995; Boundy et al., 1997) Û ~âêÛ~Üã äÒÒÝÀ,êâfl â êÛã,ÝßÛ ,ÜÒÒÜÛfl ÛÜêëÑÛØ ÜãêãÑÛêã,ã,,ã ÝãßäÞÒÝâ. ù éÞÛÜãß ÒÚÛßÒ Ü ÜÜãß êäÒ ßÒêßãéÛÑß ÛÑ,ÒâêÜã ÜÒ êÝ ßÜã,,ã. ×ÒãflêÜã, éÞÛ ÇÀÞ ,ãÜã-ë,,ÞÒÝÛâÞÀß - ãÇ êãß â,ÛÒêÒÞÈâê,ëê äÛâëêâê,ÛÒ ã,,ã,ãØ ãÇßÜÝÛ, ãäÛâÜÜãØ , ãÜãØ ÛÑ äÒ,Ài äÒêãÞã,,Û-


118

øæú?üô, þðóðøù

~ÒâÝÛi Çãê (Austrheim, Griffin, 1985), êÝÚÒ ÜiãÝÛ äÒ,Û~ÜÀi ,ÝÞ~ÒÜÛØ ë,,ÞÒÝÛâÞãêÀ, ãÇÜëÚÒÜÜÀÒ , Ý,^Ò,Ài ÚÛÞi ,,ÜëÞÛêã,ã,,ã êä (Andersen et al., 1993). (2) ×ã ,Òßfl ÝÞÒãÜâÝãØ ãã,,ÒÜÛÛ ,,ÜëÞÛêÀ äã,Ò,,ÞÛâÈ ~âêÛ~ÜãØ äÒÒÝÛâêÞÞÛÑ^ÛÛ , ëâÞã,Ûfli ÝÞã,,Ûêã,ãØ é^ÛÛ ßÒêßãéÛÑß. õÛÜÒÞããÇÑã,ÜÛÒ êã,,ã êä, ÒêÞÈÜã ãäÛâÜÜãÒ , Çãêi Üã,ÒÚâÝÛi ÛââÞÒã,êÒÞÒØ (Austrheim, Griffin, 1985; Jamtveit et al., 1990; Erambert, Austrheim, 1993), äãfl,ÞÒÜã ÞÛ?È Ü ë~âêÝi äãÜÛÝÜã,ÒÜÛfl éÞÛ. õãÜãâêÈ êÝÛi ë~âêÝã, ßãÚÒê ÇÀêÈ ÑÜãØ - ãê äÒ,Ài âÜêÛßÒêã, ã ÝÛÞãßÒê. ÷ äÛâëêâê,ÛÒ ,ãÜãØ éÑÀ ,ã éÞÛÒ ëÝÑÀ,Òê ßÛÜÒÞÈÜÀØ âãâê, äããÀ (,,Üê + ãßé^Ûê + Ý,^ + âÞÀ + ßéÛÇãÞ + äÛãê + ëêÛÞ), , Ýãêããß ?ÛãÝã äÒâê,ÞÒÜÀ ,ãÜÀÒ ßÛÜÒÞÀ, ãêâëêâê,ëÛÒ (ÛÞÛ ã,,ÜÛ~ÒÜÜã äÒâê,ÞÒÜÜÀÒ) , ßêÒÛÜâÝãØ äããÒ (,,ÜëÞÛê). øã ã^ÒÜÝÒ ?ßê,ÒØê Û . (Jamtveit et al., 1990), ãÇÑã,ÜÛÒ ÝÞã,,Ûêã,ã,,ã ä,,ÒÜÒÑÛâ äãÛâiãÛÞã äÛ T ~ 700Àû, P = = 18-21 ÝÇ, ßãÞÈÜãØ ãÞÒ ,ãÀ, ãâêÛ,,ÒØ 0.95, Û âãäã,ãÚÞãâÈ ÑÜ~ÛêÒÞÈÜÀß ,ÀÒÞÒÜÛÒß êÒäÞ (~150 000 ÝáÚ/ß3 ÛâiãÜã,,ã ,,ÜëÞÛê). øã ÜÜÀß ë,,Ûi ,êãã, P-T äßÒêÀ äÛÝ ÝÞã,,Ûêã,ã,,ã ßÒêßãéÛÑß ÇÀÞÛ âÞÒëÛÒ: T = 700-800ÀC Û P > 16 ÝÇ (Austrheim, Griffin, 1985); T = 670 Á 50Àû Û P > 14.6 ÝÇ (Boundy et al., 1992). øãâÞÒÜÛÒ ÛãßÒêÛ~ÒâÝÛÒ êÛã,ÝÛ (U-Pb Û Sm-Nd ßÒêãÀ (Boundy et al., 1997)) êã,,ã âãÇÀêÛfl ê 450 Á 10 ßÞÜ. ÞÒê (^ÛÝãÜ), 462 Á Á 42 ßÞÜ. ÞÒê (ÞÞÜÛê, âéÒÜ, äÛãê) Û 442 Á Á 12 ßÞÜ. ÞÒê (,,Üê-äãã). ÕãÞÒÒ ÜÜÛÒ ãäÒÒÞÒÜÛfl ÇâãÞêÜã,,ã ,ãÑâê ÝÞã,,Ûêã,ã,,ã ßÒêßãéÛÑß â äãßãÈ Rb-Sr Û Sm-Nd ßÒêãã, äãÝÑÀ,ê 507 Á 109 Û 421 Á 29 ßÞÜ. ÞÒê âããê,Òêâê,ÒÜÜã (Cohen et al., 1988). (3) øãâÞÒëÛØ ßÒêßãéÛÑß , ëâÞã,Ûfli ßéÛÇãÞÛêã,ãØ é^ÛÛ äãfl,ÞÒÜ ÝÝ , ,,ÜëÞÛêi, êÝ Û , ÝÞã,,Ûêi. × ,,ÜëÞÛêi ãÇÑëêâfl Ò,,ÒââÛ,ÜÀØ äÞ,,ÛãÝÞÑ, ÇÛãêÛê, ßéÛÇãÞ, ÝÛÜÛê, Û âéÒÜ (Austrheim, Robins, 1991), , ÝÞã,,Ûêi - äÞ,,ÛãÝÞÑ + ÝÞÛÜãäÛãÝâÒÜ + ßéÛÇãÞ + äÛãê Á Á ÇÛãêÛê. ûäÒ^ÛÞÈÜÀÒ êÒßãÇãßÒêÛ~ÒâÝÛÒ ÛââÞÒã,ÜÛfl P-T ëâÞã,ÛØ ßÛÜÒÞããÇÑã,ÜÛfl Þfl êã,,ã êä ÜÒ äã,ãÛÞÛâÈ. ðÑ,ÒâêÜã ÞÛ?È ãäÒÒÞÒÜÜãÒ äã éÞÛÜÀß ,ÝÞ~ÒÜÛflß , ßÛÜÒÞi ÛÑ ÑãÜÀ äÞâêÛ~ÒâÝÛi Òéãß^ÛØ ,ÞÒÜÛÒ 8 Á 2 ÝÇ (Andersen et al., 1991b). × â~Òêi ÛâäãÞÈÑã,ÞãâÈ äÒäãÞãÚÒÜÛÒ, ~êã êÒßäÒêë ÜÜã,,ã êä âãâê,ÞflÞ 600 Á 100Àû. áêÛã,ÝÛ Ar-Ar ,ãÑâê Þfl ßéÛÇãÞ Û ßëâÝã,Ûê ê âÞÒëÛÒ ,ÒßÒÜÜÀÒ ÛÜêÒ,ÞÀ - 448-455 ßÞÜ. ÞÒê Û 429-463 ßÞÜ. ÞÒê âããê,Òêâê,ÒÜÜã (Boundy et al., 1996). ôãßäÞÒÝâ ÕÒ,,ÒÜ ÔÝâ ÜiãÛêâfl , ÜÒäãâÒâê,ÒÜÜãß ÝãÜêÝêÒ â ÝãßäÞÒÝâãß ,êãiêãÜÜã,,ã

ÑÞÒ,,ÜÛfl ñäÜã,,ã ÙÜÒØâã,ã,,ã ØãÜ. øãâÞÒÜÛØ äÒâê,ÞÒÜ äãÞã,,ã äÛßÛ Ü Ñä ,,ÜÒØâßÛ Û âëäÝëâêÞÈÜÀßÛ äããßÛ. ×ÀiãÀ ÝÞã,,Ûêã, ßãÚÜã ,âêÒêÛêÈ âÒÛ ÇãÞÈ?ÛÜâê, ÞÛêãÞã,,Û~ÒâÝÛi êÛäã,, ,ÝÞ~fl ä- Û ãêã,,ÜÒØâÀ, ,,ÇÇã, ÜãêãÑÛêÀ Û äÒÛãêÛêÀ (Medaris, Wang, 1986; Bryhni, 1989; Wain et al., 2000; Krabbendam et al., 2000). P-T ëâÞã,Ûfl ÝÞã,,Ûêã,ã,,ã ßÒêßãéÛÑß ÑÝãÜãßÒÜã ,ãÑâêê , âÒ,Òã-ÑäÜãß Üä,ÞÒÜÛÛ (Krogh, 1977) ,äÞãêÈ ã äãfl,ÞÒÜÛfl ëÞÈê,ÀâãÝãÇÜã,,ã ÝãâÛê (Smith, 1984) Ü âßãß ÑäÒ ÝãßäÞÒÝâ, , ØãÜÒ ûÞÈÒ (Salje). ?,ãÞ^ÛãÜÜãØ ãâãÇÒÜÜãâêÈ ÜÒÝãêãÀi ÝÞã,,Ûêã, ñäÜã,,ã ÙÜÒØâã,ã,,ã ØãÜ fl,ÞflÒêâfl Ñã,,Ò, Ü Ü~ÞÈÜãØ âêÛÛ ÒÝãßäÒââÛÛ. øããÀ äÛ êãß ÛÜã,, ãâêÛ,,ê P-T ëâÞã,ÛØ ,,ÜëÞÛêã,ãØ é^ÛÛ ßÒêßãéÛÑß (âß. ãÇÑãÜÀÒ ÇãêÀ (Smith, 1995; Krogh, Carswell, 1995; Austrheim et al., 1997) Û ââÀÞÝÛ Ü ÜÛi). øÛßÒ~êÒÞÈÜã, ~êã äããÇÜÀÒ P-T êÒÜÀ ßÒêßãéÛÑß , ÝÞã,,Ûêi ÝãßäÞÒÝâ ÕÒ,,ÒÜ ÔÝâ ãêâëêâê,ëê. ×ãÑâê ÝÞã,,Ûêã,ã,,ã ßÒêßãéÛÑß , ñäÜãß ÙÜÒØâã,ãß ØãÜÒ äã ÛãßÒêÛ~ÒâÝÛß ÜÜÀß (Sm-Nd Û U-Pb ßÒêãÀ) ÜiãÛêâfl , äÒÒÞi 400-447 ßÞÜ. ÞÒê (Griffin, Bruekner, 1980, 1985; Mork, Mearns, 1986; Gebauer et al., 1985). øãâÞÒÜÛÒ êÛã,ÝÛ ßãÜ^Ûê â äãßãÈ SHRIMP âÛêë^Û ÝÛÜÞÈÜã ÜÒ äãflâÜÛÞÛ: ,ÝÞ~ÒÜÛfl , ,,ÜêÒ ê 400-440 ßÞÜ. ÞÒê, ßãÜ^Ûê ÛÑ ßêÛ^À - 370-440 ßÞÜ. ÞÒê (Terry et al., 2000, Ûâ. 3). × êãØ ÚÒ ÇãêÒ äãÝÑÜã, ~êã U-Th-Pb ,ãÑâê ßãÜ^Ûê, ëâêÜã,ÞÒÜÜÀØ â äãßãÈ ßÛÝãÑãÜ, äãäÒê Ü êÛ ?ÛãÝÛi äÛÝ , ÛÜêÒ,ÞÒ 410-370 ßÞÜ. ÞÒê. ÷ éãÜÒ ÜÒãäÒÒÞÒÜÜãâêÒØ ÝÞã,,Ûêã,ã,,ã êä Ar-Ar êÛã,ÝÛ ßéÛÇãÞ Û éÒÜ,,Ûê (Òêã,,Üfl âêÛfl) ê iãã?ã ,ãâäãÛÑ,ãÛßÀÒ ÒÑëÞÈêêÀ - 410-395 Û 403-395 ßÞÜ. ÞÒê âããê,Òêâê,ÒÜÜã (Chauvet, Dallmeyer, 1992; Boundy et al., 1996). ÿÝêÒÜã, ~êã êÛ ÑÜ~ÒÜÛfl ,ãÑâê ãÝÑÀ,êâfl Ü ~ 30 ßÞÜ. ÞÒê ßÒÜÈ?Ò ÜÞã,,Û~ÜÀi ãäÒÒÞÒÜÛØ Þfl ßÛÜÒÞã, ÛÑ ÝãßäÞÒÝâ ÕÒ,,ÒÜ ÔÝâ. ùûùÕæ÷÷ùûýð øæýúùÙúÔþðð øããÇÜÀÒ â,ÒÒÜÛfl ã äÒêã,,éÛÛ Û ßÛÜÒÞã,,ÛÛ ÝÞã,,Ûêã, ÝãßäÞÒÝâ ÕÒ,,ÒÜ ÔÝâ ßãÚÜã ÜØêÛ , äëÇÞÛÝ^Ûfli Üã,ÒÚâÝÛi ,,ÒãÞã,,ã, (Austrheim, Griffin, 1985; Jamtveit et al., 1990; Erambert, Austrheim, 1993). áÞfl ÜÜã,,ã ÛââÞÒã,ÜÛfl ÇÀÞ ãêãÇÜ ÝÞã,,Ûê â ãâêã, ÿãÞâÜãë (Holsnoy), âãiÜÛ,?ÛØ ÛÜéãß^Û ã ßÒêßãéÛ~ÒâÝãØ P-T-( a H2 O ) ,ãÞ^ÛÛ, êÝÚÒ âãÒÚÛØ ,,Üê, ,,ÒêÒã,,ÒÜÜãâêÈ Ýãêãã,,ã äãÑ,ãÞflÒê ééÒÝêÛ,Üã ÛâäãÞÈÑã,êÈ ßÛÜÒÞÈÜë iãÜãßÒêÛ. ÙÞ,ÜÀßÛ äããããÇÑëÛßÛ ßÛÜÒÞßÛ ÝÞã,,Ûê fl,Þflêâfl ,,Üê, ãßé^Ûê, ÝÛÜÛê,
øæýúùóùÙð? êãß 10 < 2 2002


?ôóùÙðý? ôùõøóæôûÔ ÕæúÙæ÷ Ôúôû, ÷ùú׿Ùð? () Cpx Hbl Qtz

119

symp Grt1 Grt2 Omp Phn 100 Åm 100 Åm

(Ç)

Grt2

úÛâ. 3. Cpx + Hbl + Pl âÛßäÞÒÝêÛêÀ (symp) Ü ,,ÜÛ^Ò ãßé^Ûê (Omp) Û Ý,^ (Qtz). ôÞÛÜãäÛãÝâÒÜ (â,ÒêÞã-âÒÀØ) Û ã,,ã,fl ãÇßÜÝ (êÒßÜã-âÒfl) ÜÒÒÝã ãÇÑëê âãâêÝÛ, ÜiãflÛÒâfl , äÞ,,ÛãÝÞÑÒ (~ÒÜÀØ).

A' Grt1 A 100 Åm

Grt2

úÛâ. 2. ü~âêãÝ ÝÞã,,Ûê â ,,Üêãß Ü ÛÑãÇÚÒÜÛÛ , ãêÚÒÜÜÀi ÞÒÝêãÜi. () - ÝãÜ^ÒÜêÛ~ÒâÝÛ-ÑãÜÞÈÜÀØ ,,Üê (Ýë,,ÞÀØ ÝÛâêÞÞ , ^ÒÜêÒ) â Mg-flãß (ÇãÞÒÒ êÒßÜãÒ), ãêÜãâflÛßâfl Ý ,,ÜëÞÛêã,ãßë êäë, Û Fe-ÝØßãØ (â,ÒêÞfl), ãêÜãâflÒØâfl Ý ÝÞã,,Ûêã,ãßë êäë. × ßêÛ^Ò ?ÛãÝã äÒâê,ÞÒÜÀ ,ãÜÀÒ ßÛÜÒÞÀ. (Ç) - âêÛÜ,,ÒÀ (ÝÞã,,Ûêã,ÀØ êä) - â,ÒêÞÀÒ ÞÛÜÒØÜÀÒ ë~âêÝÛ , ,,ÜêÒ, ÛÜã,, âãÒÚÛÒ ^Òäã~ÝÛ ,ÝÞ~ÒÜÛØ ãßé^Ûê (ãÜ äãÝÑÜ âêÒÞÝãØ). AA' - ë~âêãÝ ßÛÝãÑãÜã,ã,,ã äãéÛÞÛã,ÜÛfl.

éÒÜ,,Ûê, ßéÛÇãÞ, äÛãê Û Ý,^. ûêëÝêë äããÀ ,,ÒêÒãÇÞâêã,fl, , ßÒÞÝãÑÒÜÛâêãØ ßêÛ^Ò ,ÀÒÞflêâfl ãêÜãâÛêÒÞÈÜã ÝëäÜÀÒ (5 ßß , ÛßÒêÒ) ÒÑãÇÛã,ÜÜÀÒ â ÝÒ, ÝÛâêÞÞÀ ,,Üê. úÑßÒ ,,Üê , ÜÜãß âÞë~Ò ÜÒ â,flÑÜ â äã,À?ÒÜÜãØ ÝÛâêÞÞÛÑ^ÛãÜÜãØ âÛÞãØ êã,,ã ßÛÜÒÞ, äãâêã ÑÜ~ÛêÒÞÈÜfl ~âêÈ Ò,,ã ãÇÒß ÇÀÞ ëÜâÞÒã,Ü ãê ÝÛâêÞÞ ÇãÞÒÒ ÜÜÒØ ,,ÒÜÒ^ÛÛ. áÒêÞÈÜÀÒ äÒêãÞã,,Û~ÒâÝÛÒ ÛââÞÒã,øæýúùóùÙð? êãß 10 < 2 2002

ÜÛfl ÝÞã,,ÛêÛÑ^ÛÛ ,,ÜëÞÛêã, ÛÑ ÝãßäÞÒÝâ ÕÒ,,ÒÜ ÔÝâ (Austrheim, Griffin, 1985; Erambert, Austrheim, 1993) äãÝÑÀ,ê, ~êã ÜÜÛØ ,,Üê ãêÜãâÛêâfl Ý ,,ÜëÞÛêã,ãßë êäë ßÒêßãéÛÑß. ÿÛßÛ~ÒâÝfl ,,ÒêÒã,,ÒÜÜãâêÈ ,,Üê iãã?ã ,ÛÜ Ü ÛÑãÇÚÒÜÛÛ , ãêÚÒÜÜÀi ÞÒÝêãÜi (âÝÜÛëÛØ ÞÒÝêãÜÜÀØ ßÛÝãâÝãä JSM-840A, üÜÛ,ÒâÛêÒê øÛÚ 7): fl ,ÀäãÞÜÒÜÀ ,,Üêãß ÇãÞÒÒ ÜÜÒØ ,,ÜëÞÛêã,ãØ âêÛÛ ßÒêßãéÛÑß (Grt1); ,,Üê, ,ãÑÜÛÝÛØ Ü ÝÞã,,Ûêã,ãØ âêÛÛ (Grt2) ãÇÑëÒê ÝØßÀ ,ãÝë,, ÝÛâêÞÞã, ÜÜÒØ ,,ÒÜÒ^ÛÛ, êÝÚÒ ÞÛÜÒØÜÀÒ ÑãÜÀ , ,,ÜêÒ (Ûâ. 2), ÝãêãÀÒ, ,âÞÒ Ñ ôÞÛéãß Û . (Ckiff et al., 1998), ÇëÒß ÜÑÀ,êÈ âêÛÜ,,ÒßÛ (stringer (Ü,,Þ.) - âêëÜ). õÛÜÒÞÈÜÀÒ ,ÝÞ~ÒÜÛfl , ,,ÜêÒ ,âêÒ~êâfl ãâêêã~Üã ÒÝã. ôÝ ä,ÛÞã, êã ÛÑãÞÛã,ÜÜÀÒ ÑÒÜ Ý,^, êÝÚÒ ^Òäã~ÝÛ ÝÛâêÞÞã, ãßé^Ûê (ÛÜã,, ââã^ÛÛëÛi â Ý,^Òß Û ÝÛÜÛêãß), ÝãêãÀßÛ êââÛëêâfl ^ÒÜêÞÈÜÀÒ ~âêÛ ÜÒÝãêãÀi âêÛÜ,,Òã, (Ûâ. 2Ç). ýÝÛß ãÇÑãß, ,ÀâãÝãÇÜÀØ ãßé^Ûê ,âÒ,, âãâëÒâê,ëÒê êãÞÈÝã â ÝÞã,,Ûêã,Àß ,,Üêãß. ûÞÇã ,ÀÚÒÜÜfl âÞÜ^Ò,êãâêÈ äããÀ âãÑÒêâfl äÒäã~êÛêÒÞÈÜãØ ãÛÒÜêÛã,ÝãØ ÑÒÒÜ éÒÜ,,Ûê, ÝÛÜÛê Û ÝÞÛÜã^ãÛÑÛê, âãâëÒâê,ëÛi â ,À?ÒëÝÑÜÜÀßÛ ,ÀâãÝãÇÜÀßÛ ßÛÜÒÞßÛ. úÒ,,ÒââÛ,ÜÀÒ äÒãÇÑã,ÜÛfl Ñê,,Û,ê ÑÜ~ÛêÒÞÈÜë ~âêÈ äããÀ. ùÜÛ ,ÀÚêâfl , ãÇÑã,ÜÛÛ Hbl Á Pl Á Ep11 ÝØß ,ãÝë,, ,,Üê , ÝãÜêÝêÒ â ãßé^Ûêãß, , ãâêÒ êãÜÝÛi ~Ò?ëÒÝ
1

ûÛß,ãÞÀ ßÛÜÒÞã, äã ôÒ^ë (Kretz, 1983).


120

øæú?üô, þðóðøù

ýÇÞÛ^ 2. õÛÝãÑãÜã,ÀÒ ÜÞÛÑÀ Û ÝÛâêÞÞãiÛßÛ~ÒâÝÛÒ éãßëÞÀ ,,Üê ÛÑ ÝÞã,,Ûê ÝãßäÞÒÝâ ÕÒ,,ÒÜ ÔÝâ ÙÜê ôãßäãÜÒÜêÀ flã SiO2 TiO2 Al2O3 Cr2O3 FeO1 MnO MgO CaO Na2O K2O ûëßß Si Al Cr Ti Fe
3+

âêÛÜ,,Ò 41.07 0.10 23.08 0.10 13.88 0.11 14.67 7.02 0.00 0.00 100.04 3.00 1.99 0.01 0.01 0.00 0.84 0.01 1.60 0.55 0.00 0.00 8.00 0.65 0.18 0.28 0.00 0.53 0.18 40.81 0.08 23.05 0.00 14.18 0.31 14.55 7.04 0.00 0.00 100.02 12 O 2.99 1.99 0.00 0.00 0.02 0.85 0.02 1.59 0.55 0.00 0.00 8.00 0.65 0.18 0.28 0.01 0.53 0.18 39.49 0.10 22.35 0.00 21.25 0.37 9.55 6.72 0.03 0.00 99.86 3.00 2.00 0.00 0.01 0.00 1.35 0.02 1.08 0.55 0.01 0.00 8.00 0.44 0.18 0.45 0.01 0.36 0.18 39.12 0.11 21.96 0.00 23.11 0.54 7.50 7.79 0.03 0.00 99.61 3.00 1.98 0.00 0.01 0.02 1.47 0.03 0.86 0.64 0.00 0.00 8.00 0.37 0.21 0.49 0.01 0.29 0.21

ÝØß 39.05 0.08 21.75 0.00 23.25 0.52 8.26 7.11 0.03 0.00 100.04 2.99 1.96 0.00 0.00 0.05 1.44 0.03 0.94 0.58 0.01 0.00 8.00 0.40 0.19 0.48 0.01 0.31 0.19 39.36 0.04 23.34 0.00 21.31 0.46 9.45 6.83 0.04 0.02 99.83 2.99 2.00 0.00 0.00 0.01 1.35 0.03 1.07 0.56 0.01 0.00 8.00 0.44 0.19 0.45 0.01 0.36 0.19

41.10 0.12h 23.02 0.02 13.45 0.19 14.85 7.29 0.00 0.00 100.04 3.00 1.98 0.00 0.01 0.02 0.80 0.01 1.61 0.57 0.00 0.00 8.00 0.67 0.19 0.27 0.00 0.54 0.19

41.16 0.13 23.08 0.00 13.59 0.12 14.93 7.24 0.00 0.00 100.25 2.99 1.98 0.00 0.01 0.02 0.81 0.01 1.62 0.56 0.00 0.00 8.00 0.67 1.19 0.27 0.00 0.54 0.19

Fe2+ Mn Mg Ca Na K ûëßß XMg XCa XAlm XSps XPrp XCrs

øÛßÒ~ÜÛÒ. XMg = Mg/(Mg + Fe2+); XCa = Ca/(Ca + Mn + Mg + Fe2+). 1 ñÒâÈ Û ÞÒÒ âëßßÜãÒ Fe.

ÇÛãêÛê äã éÒÜ,,Ûêë, êÝÚÒ , ÑßÒÒÜÛÛ ÝÒ,Ài ~âêÒØ ßêÛ~Üã,,ã ãßé^Ûê âÛßäÞÒÝêÛêßÛ, , âãâê,Ò ÝãêãÀi , äÒÒßÒÜÜÀi âããêÜã?ÒÜÛfli äÛâëêâê,ëê äÞ,,ÛãÝÞÑ, ÝÞÛÜãäÛãÝâÒÜ Û ßéÛÇãÞ. ñÒÜ ÝÞÛÜãäÛãÝâÒÜ Û ßéÛÇãÞ , âÛßäÞÒÝêÛêi ßã,,ëê ÇÀêÈ ÛÑãÞÛã,ÜÜÀßÛ, ê.Ò. ãÝëÚÒÜÜÀßÛ äÞ,,ÛãÝÞÑãß, Û ÜiãÛêÈâfl , êãÜ~Ø?Ûi âãâêÝi ë,, â ë,,ãß (Ûâ. 3).

ûùûýÔ×? ÙóÔ×÷?ÿ øùúùáùùÕúÔñü??ðÿ õð÷æúÔóù× ÿÛßÛ~ÒâÝÛØ âãâê, éÑ ãäÒÒÞflÞâfl Ü ßÛÝãÑãÜÒ CAMECA SX-50 , ëÜÛ,ÒâÛêÒêÒ øÛÚ 6, CAMPARIS. ÔÜÞÛÑÀ ,ÀäãÞÜflÞÛâÈ äÛ ëâÝãflÒß ÜäflÚÒÜÛÛ 15 Ý×, âÛÞÒ êãÝ 10 ÜÔ Û ÛßÒêÒ äë~Ý ÞÒÝêãÜã, 1 ßÝß. × Ý~Òâê,Ò êÞãÜã,
øæýúùóùÙð? êãß 10 < 2 2002


?ôóùÙðý? ôùõøóæôûÔ ÕæúÙæ÷ Ôúôû, ÷ùú׿Ùð?

121

ýÇÞÛ^ 3. õÛÝãÑãÜã,ÀÒ ÜÞÛÑÀ Û ÝÛâêÞÞãiÛßÛ~ÒâÝÛÒ éãßëÞÀ ÝÞÛÜãäÛãÝâÒÜ ÛÑ ÝÞã,,Ûê ÝãßäÞÒÝâ ÕÒ,,ÒÜ ÔÝâ ôãßäãÜÒÜêÀ SiO2 TiO2 Al2O3 Cr2O3 FeO MnO MgO CaO Na2O K2O ûëßß ôÞÛÜãäÛãÝâÒÜ ÝÛâêÞÞÀ , âêÛÜ,,Òi 56.44 0.13 13.33 0.06 4.02 0.04 7.41 12.10 7.49 0.02 101.03 55.68 0.12 12.99 0.04 4.03 0.08 7.66 13.17 6.84 0.04 100.63 55.98 0.11 13.90 0.04 3.70 0.00 6.97 12.20 7.57 0.02 100.47 56.44 0.13 13.33 0.06 4.02 0.04 7.41 12.10 7.49 0.02 101.03 ßêÛ^ 55.68 0.12 12.99 0.04 4.03 0.08 7.66 13.17 6.84 0.04 100.63 55.98 0.11 13.90 0.04 3.70 0.00 6.97 12.20 7.57 0.02 100.47 6O Si Al Cr Ti Fe3+ Fe2+ Mn Mg Ca Na K ûëßß XMg XJd 1.98 0.55 0.00 0.00 0.00 0.12 0.00 0.39 0.45 0.51 0.00 4.00 0.77 0.51 1.96 0.54 0.00 0.00 0.00 0.12 0.00 0.40 0.50 0.47 0.00 4.00 0.77 0.47 1.97 0.58 0.00 0.00 0.00 0.11 0.00 0.37 0.46 0.52 0.00 4.00 0.77 0.52 1.98 0.55 0.00 0.00 0.00 0.12 0.00 0.39 0.45 0.51 0.00 4.00 0.77 0.51 1.96 0.54 0.00 0.00 0.00 0.12 0.00 0.40 0.50 0.47 0.00 4.00 0.77 0.47 1.97 0.58 0.00 0.00 0.00 0.11 0.00 0.37 0.46 0.52 0.00 4.00 0.77 0.52 2.00 0.50 0.00 0.01 0.02 0.09 0.00 0.40 0.44 0.52 0.00 3.98 0.81 0.50 1.99 0.06 0.00 0.00 0.08 0.16 0.00 0.72 0.88 0.12 0.00 4.00 0.82 0.03 1.98 0.19 0.00 0.00 0.05 0.13 0.00 0.65 0.78 0.22 0.00 4.01 0.83 0.15 1.98 0.18 0.00 0.00 0.05 0.11 0.00 0.68 0.79 0.21 0.00 4.01 0.86 0.14 56.79 0.39 12.09 0.00 3.84 0.00 7.61 11.68 7.66 0.01 100.07 53.96 0.09 1.29 0.11 7.65 0.09 13.05 22.23 1.67 0.00 100.15 âÛßäÞÒÝêÛê 54.25 0.13 4.41 0.00 5.97 0.16 11.86 19.90 3.13 0.02 99.98 54.62 0.05 4.33 0.00 5.22 0.10 12.65 20.23 3.04 0.00 100.24

øæýúùóùÙð? êãß 10 < 2 2002


122

øæú?üô, þðóðøù

ýÇÞÛ^ 4. õÛÝãÑãÜã,ÀÒ ÜÞÛÑÀ Û ÝÛâêÞÞãiÛßÛ~ÒâÝÛÒ éãßëÞÀ ,ããâãÒÚÛi ßÛÜÒÞã, Û äÞ,,ÛãÝÞÑ ÛÑ ÝÞã,,Ûê ÝãßäÞÒÝâ ÕÒ,,ÒÜ ÔÝâ ôÞÛÜã^ãÛÑÛê ôãßäãÜÒÜêÀ SiO2 TiO2 Al2O3 Cr2O3 FeO MnO MgO CaO Na2O K2O ûëßß Si Al Cr Ti Fe
3+

þÒÜ,,Ûê ßêÛ^ 46.11 0.18 33.54 0.11 1.71 0.00 2.12 0.03 2.14 7.82 93.757 3.13 2.68 0.01 0.01 0.10 46.71 0.23 33.09 0.00 1.50 0.07 1.75 0.08 1.68 8.03 93.131 11 O 3.18 2.65 0.00 0.01 0.09 0.00 0.18 0.01 0.22 0.70 7.03 0.67 47.18 1.02 32.36 0.00 2.08 0.00 1.63 0.06 2.01 8.15 94.471 3.19 2.58 0.00 0.05 0.12 0.00 0.16 0.00 0.26 0.70 7.07 0.58

ÕÛãêÛê Ò,,ÒââÛ,ÜÀØ 34.39 1.75 20.32 0.00 14.70 0.10 12.18 0.05 0.35 9.20 93.04 2.87 2.00 0.00 0.11 1.02 0.01 1.52 0.00 0.06 0.98 8.56 0.60

øÞ,,ÛãÝÞÑ âÛßäÞÒÝêÛê 65.20 0.06 21.92 0.00 0.18 0.00 0.00 2.95 10.03 0.13 100.47 2.86 1.13 0.00 0.00 0.01 0.00 0.00 0.14 0.85 0.01 5.00 0.14 65.40 0.00 21.92 0.03 0.13 0.07 0.10 3.07 10.18 0.10 101.00 8O 2.86 1.13 0.00 0.00 0.00 0.00 0.01 0.14 0.86 0.01 5.01 0.14 7.44 1.05 0.00 0.03 0.17 1.34 0.01 2.95 1.67 0.49 0.00 15.16 0.69 51.65 0.30 6.20 0.00 12.51 0.09 13.74 10.80 1.74 0.00 97.03

ÔßéÛÇãÞ âÛßäÞÒÝêÛê 50.52 0.59 5.62 0.00 11.08 0.05 15.58 11.62 1.77 0.07 96.89 23 O 7.29 0.96 0.00 0.06 0.24 1.10 0.01 3.35 1.80 0.50 0.01 15.30 0.75 7.17 1.02 0.00 0.03 0.76 0.82 0.01 3.20 1.67 0.45 0.01 15.14 0.80 50.21 0.24 6.03 0.08 13.15 0.08 15.02 10.93 1.64 0.06 97.44

ßêÛ^ 39.32 0.09 32.53 0.05 1.69 0.00 0.01 24.69 0.01 0.00 98.38 2.98 2.91 0.00 0.00 0.11 0.00 0.00 2.01 0.00 0.00 8.01 39.47 0.01 32.59 0.01 1.51 0.00 0.01 24.19 0.03 0.01 98.38 3.00 2.92 0.00 0.00 0.10 0.00 0.00 1.97 0.01 0.00 7.99 0.00 0.21 0.00 0.28 0.68 7.10 0.69

12.5 O

Fe2+ Mn Mg Ca Na K ûëßß XMg, XAn

ÛâäãÞÈÑã,ÞÛâÈ äÛãÜÀÒ Û ÛâÝëââê,ÒÜÜÀÒ ,ÒÒâê,. øÒâê,ÛêÒÞÈÜÀÒ ÜÞÛÑÀ ßÛÜÒÞã, Û Ûi ÝÛâêÞÞãiÛßÛ~ÒâÝÛÒ éãßëÞÀ äÛ,ãflêâfl , êÇÞ. 2-4. øÛ äÒÒâ~ÒêÒ ÜÞÛÑã, ßÛÜÒÞã, Ü ÝÛâêÞÞãiÛßÛ~ÒâÝÛÒ éãßëÞÀ ÛâäãÞÈÑã,ÞÛâÈ êÒ ÚÒ ßÒêãÀ, ~êã Û , Çãêi (øÒ~ëÝ, 1993; Perchuk, Philippot, 1997). ÙÜê. ñÒÜ ,,Üê ÛßÒê ÝãÜ^ÒÜêÛ~ÒâÝÛ-ÑãÜÞÈÜãÒ âêãÒÜÛÒ: Ûi ,,ãßã,,ÒÜÜÀÒ fl (#Mg2 ~ 67; #Ca3 ~ 19) ÒÑÝã âßÒÜflêâfl ëÑÝÛßÛ (ÜÒ ÇãÞÒÒ 200 ßÝß) ÝØßßÛ äãâêãflÜÜã,,ã âãâê, (#Mg ~ 45; #Ca ~ 19) (êÇÞ. 2). Ùãßã,,ÒÜÜãâêÈ flÒ
2 3

#Mg = Mg/(Mg + Fe2+)%. #Ca = Ca/(Ca + Mn + Mg + Fe2+)%.

ÜÒÒÝã Üë?Òêâfl äÛâëêâê,ÛÒß âêÛÜ,,Òã,, Ü ,,ÜÛ^Ò â ÝãêãÀßÛ ÜÇÞêâfl êÒ ÚÒ ÛÑßÒÜÒÜÛfl, ~êã Û äÛ äÒÒiãÒ ãê fl Ý ÝØßÒ (Ûâ. 4, êÇÞ. 2). ýÝÛß ãÇÑãß, âãâê, ÝÞã,,Ûêã,ã,,ã ,,Üê (Grt2) ãêÞÛ~Òêâfl ãê âãâê, ,,ÜëÞÛêã,ã,,ã ,,Üê (Grt1) äãÜÛÚÒÜÜãØ ß,,ÜÒÑÛÞÈÜãâêÈ äÛ äãâêãflÜÜãß âãÒÚÜÛÛ ë,,Ûi ÝãßäãÜÒÜêã,. ùÇÒê Ü âÒÇfl ,ÜÛßÜÛÒ iÝêÒÜãÒ Þfl ÝÞã,,Ûêã, ãêâëêâê,ÛÒ ÛééëÑÛãÜÜãØ ÑãÜÞÈÜãâêÛ Ü ÝãÜêÝêÒ ,,Üê Û ãßé^Ûê. áÒêÞÈÜãÒ ÛââÞÒã,ÜÛÒ ßÛÜÒÞÈÜÀi ÒÝ^ÛØ ÝÞã,,ÛêããÇÑã,ÜÛfl äã ,,ÜëÞÛêß ÝãßäÞÒÝâ ÕÒ,,ÒÜ ÔÝâ äãÝÑÞã (Austrheim, Griffin, 1985), ~êã ,,ÜëÞÛêã,ÀØ ,,Üê (Grt1) ÒÝêÜêãß ÜÛÝã,, ÜÒ ÇÀÞ. ?êÛß Û ãÇflâÜflÒêâfl Ò,,ã âãiÜøæýúùóùÙð? êãß 10 < 2 2002


?ôóùÙðý? ôùõøóæôûÔ ÕæúÙæ÷ Ôúôû, ÷ùú׿Ùð?

123

ÜãâêÈ , fli ÝâÒÜãÇÞâêã, ,,Üê, êÝÚÒ ÒÑÝãÒ, ÜÒâßãêfl Ü ~âêÛ~ÜãÒ ÛééëÑÛãÜÜãÒ â,,ÞÚÛ,ÜÛÒ, ÛÑßÒÜÒÜÛÒ âãâê, äÛ äÒÒiãÒ Grt1 Grt2. þÝêÛ~ÒâÝÛ ßÀ ÛßÒÒß ÒÞã â äÒÀ,ÛâêÀß ãâêãß êã,,ã ßÛÜÒÞ, â,flÑÜÜÀß â äÒÒiããß ãê ,,ÜëÞÛêã,ãØ é^ÛÛ ßÒêßãéÛÑß Ý ÝÞã,,Ûêã,ãØ. ÔÜÞã,,Û~ÜÀØ âÞë~Ø äÒÀ,Ûâêã,,ã ãâê ÇÀÞ ãäÛâÜ , ÝÞã,,ÛêÒ ôãÝ~Òê,âÝã,,ã ßââÛ, Ü ë~âêÝÒ ûëÞë-ýÇÒ (øÒ~ëÝ Û ., 1998); êß ÛÛãßãéÜÀØ ßéÛÇãÞÛêã,ÀØ ,,Üê, ÜiãflÛØâfl , fli ÛÛãÇÞâêã, ,,Üê, ÚÒ âãiÜÛÞ â,ãØ ÛÛãßãéÛÑß. ôÞÛÜãäÛãÝâÒÜ. ôÞÛÜãäÛãÝâÒÜ , ÝÞã,,ÛêÒ ÜiãÛêâfl , êÒi âêëÝêëÜÀi äãÑÛ^Ûfli - , ßêÛ^Ò, , ,ÛÒ ßÛÜÒÞÈÜÀi ,ÝÞ~ÒÜÛØ (, âêÛÜ,,Òi) Û , âÛßäÞÒÝêÛêi. øÒ,ÀÒ , ÝÞÛÜãäÛãÝâÒÜ - ,ÀâãÝãÇÜÀÒ. ûã,,ÞâÜã ÜãßÒÜÝÞêëÒ, êã ãßé^ÛêÀ âã âiãÜÀßÛ ,ÀâãÝÛßÛ âãÒÚÜÛflßÛ ÚÒÛêã,ã,,ã ßÛÜÞ (48-53 ßãÞ. %), äÛ ÜÒÑÜ~ÛêÒÞÈÜãß ÝãÞÛ~Òâê,Ò ÝßÛê (0-5 ßãÞ. %). × Ò,,ÒââÛ,ÜÀi äÛãÝâÒÜÒ ÛÑ Pl + Cpx Á Amph âÛßäÞÒÝêÛêã, (äã ãßé^Ûêë) âãÒÚÜÛÒ ÚÒÛê ÑßÒêÜã âÜÛÚÒêâfl, ,äÞãêÈ ã 3 ßãÞ. % (êÇÞ. 3, Ûâ. 5). ûÒÛ ,ããâãÒÚÛi ßÛÜÒÞã, ßêÛ^À ßãÚÜã ,ÀÒÞÛêÈ éÒÜ,,Ûê Û ^ãÛÑÛê. ÔêãßÜãÒ âãÒÚÜÛÒ Si , éÒÜ,,ÛêÒ âãâê,ÞflÒê ãÝãÞã 3.23 éãß. Ò. × êãß ßÛÜÒÞÒ ãêßÒ~Òêâfl êÝÚÒ ÑßÒêÜãÒ ÝãÞÛ~Òâê,ã ä,,ãÜÛêã,ãØ ßãÞÒÝëÞÀ (Na/(Na + K) = 0.25) (êÇÞ. 4). åãÛÑÛê ÛßÒÒê ãâêêã~Üã ,ÀÒÚÜÜÀØ âãâê, (~ 4 ßãÞ. % äÛâê^Ûê). × âÛßäÞÒÝêÛêi ?ÛãÝã âäãâêÜÒÜÀ Ca-ßéÛÇãÞÀ äÒÛßëÒâê,ÒÜÜã ÒÜÛêã,ã,,ã âãâê, (êÇÞ. 4). P-T ?×ùó?åð? õæýÔõùúþðñõÔ øÛÝ ßÒêßãéÛÑß (ÝÞã,,Ûêã,ÀØ êä). × ãÜãØ ÛÑ ÛÑ,ÒâêÜÀi Çãê äã äÒêãÞã,,ÛÛ ÝãßäÞÒÝâ ÕÒ,,ÒÜ ÔÝâ (Jamtveit et al., 1990) ãÇÞãâÈ ,ÜÛßÜÛÒ Ü êã, ~êã Grt-Cpx ,,ÒãêÒßãßÒêÛfl Òê ÜÒãä,ÜÜã ,ÀâãÝÛÒ ã^ÒÜÝÛ êÒßäÒêëÀ (750Àû Û ÇãÞÒÒ) Þfl äÛÝ ÝÞã,,Ûêã,ã,,ã ßÒêßãéÛÑß. ùâÜã,ÜÛÒß Þfl êÝã,,ã ÑÝÞ~ÒÜÛfl äãâÞëÚÛÞ ÞÛÜÛfl ,ãÜã,,ã âãÞÛëâ ÝÞã,,Ûê, Ýãêãfl äÛ ã~ÒÜÈ ,ÀâãÝãØ ßãÞÈÜãØ ãÞÒ ,ãÀ X H2 O ~ 0.9 , ßÒêßãéÛ~ÒâÝãß éÞÛÒ, äÛ 700Àû Û 21 ÝÇ (Jamtveit et al., 1990) ÜiãÛêâfl , ÜÛÑÝãêÒßäÒêëÜãØ ãÇÞâêÛ, âãÑ,fl ã,,ÜÛ~ÒÜÛÒ äã êÒßäÒêëÒ Ü äÛÝÒ ßÒêßãéÛÑß (Ûâ. 6). øãâÝãÞÈÝë êÒßäÒêë âãÞÛëâ âÛÞÈÜã Ñ,ÛâÛê ãê ÝêÛ,ÜãâêÛ ,ãÀ ,ã éÞÛÒ, ßÀ Ò?ÛÞÛ ëãâêã,ÒÛêÈâfl , ä,ÛÞÈÜãâêÛ ãäÒÒÞÒÜÛfl ÝêÛ,ÜãâêÛ ,ãÀ äã âÞÒëÛß ,ëß ßÛÜÒÞÈÜÀß ,Üã,ÒâÛflß (Jamtveit et al., 1990): Dol + Qtz = = Di ( , ãßé^ÛêÒ ) + CO 2 ( ,ã éÞÛÒ ) ,
øæýúùóùÙð? êãß 10 < 2 2002

Mg, Fe, Mn, Ca, éãß. Ò.

1.5

Mg

1.0

Fe2+

Ca 0.5 Mn

0

50

100 150 úââêãflÜÛÒ, ßÝß

úÛâ. 4. úâäÒÒÞÒÜÛÒ 2-i ,ÞÒÜêÜÀi ÝêÛãÜã, Ü ÑãÜã,ãß äãéÛÞÒ ~ÒÒÑ âêÛÜ,,Ò Û äÛÞÒ,,ÛØ ë~âêãÝ ,,Üê. óÛÜÛfl ê,Òâ (AA') äãÝÑÜ Ü Ûâ. 2Ç. ÷ÇÞÒêâfl ÒÑÝÛØ äÒÒiã ãê âêÛÜ,,Ò Ý ,,Üêë Û ,ÀÒÚÜÜÀØ (ÜÒ ÑêãÜëêÀØ ÛééëÑÛÒØ) âãâê, ^ÒÜêÞÈÜãØ ~âêÛ âêÛÜ,,Ò.

A 1 2 3

FM

C

úÛâ. 5. ACFM-Û,,ßß Þfl ÝÞÛÜãäÛãÝâÒÜã,, ÛßÒÛi ÑÞÛ~ÜãÒ âêëÝêëÜãÒ äãÞãÚÒÜÛÒ , äããÒ. 1 - ,ÝÞ~ÒÜÛfl , ,,ÜêÒ ÛÑ âêÛÜ,,Òã,; 2 - ßêÛ~ÜÀØ ãßé^Ûê; 3 - ÝÞÛÜãäÛãÝâÒÜ ÛÑ âÛßäÞÒÝêÛêã,.

Par ( , âÞÒ ) = (2) = Jd ( , ãßé^ÛêÒ ) + Ky + H 2 O ( ,ã éÞÛÒ ) . ôãÒÝêÜãâêÈ äÛßÒÜÒÜÛfl äÒ,ã,,ã ,Üã,ÒâÛfl ÇÀÞ ,äãâÞÒâê,ÛÛ ãâäãÒÜ (Krogh, Carswell,

(1)


124 P, ÝÇ 26 0.5 aH2O 0.4 0.3 0.2 Jd50 + Ky +H Par 2O J
25

øæú?üô, þðóðøù Ýß

22

70

70

18

1

ÇÑÞÈê

hAb

14

Jd

50

z + Qt
70

B

âãÞÛëâ

AG

50
O)

lAb

10 2 6

H fl( ÒÜÛ ~ Þ ,Ý Ò ÛÜÀ éÞ

2

30

Jd3 + Qtz Sil 600 hAb76 10
a
O H2

Ky And 400 500

700

800

900 T, ÀC

úÛâ. 6. ?,ãÞ^ÛÛ P-T äßÒêã, ßÒêßãéÛÑß Þfl ÝÞã,,Ûê ÛÑ ÝãßäÞÒÝâ ÕÒ,,ÒÜ ÔÝâ (?-ñ ÷ã,Ò,,Ûfl). ôëÚÝßÛ äãÝÑÜÀ êÒßäÒêë Û ßÛÜÛßÞÈÜãÒ ,ÞÒÜÛÒ äÛÝ ßÒêßãéÛÑß, ëâêÜã,ÞÒÜÜÀÒ â äãßãÈ Grt-Cpx êÒßãßÒê (Krogh, 2000) Û Cpx-Otz-Pl ÇãßÒê (øÒ~ëÝ, 1992). ûêÒÞÝ 1-2 - êÒÜ Ýâ,,ëß^ÛÛ. ûäÞã?ÜÀÒ ÞÛÜÛÛ: Jd + Qtz = Ab (øÒ~ëÝ, 1992), Par25 = Jd50 + Ky + H2O (ãäÛâÜÛÒ , êÒÝâêÒ), äãÞfl âêÇÛÞÈÜãâêÛ âÛÞÛÝêã, ,,ÞÛÜãÑÒß - Ky, And, Sil (Salje, 1986). ?êÛiã,ÀÒ ÞÛÜÛÛ: ÛÑãiãÀ éÞÛÜÀi ,ÝÞ~ÒÜÛØ H2O ÛÑ ÑãÜÀ äÞâêÛ~ÒâÝÛi Òéãß^ÛØ ßéÛÇãÞÛêã,ã,,ã êä (Andersen et al., 1991). ýã~Ò~ÜÀÒ ÞÛÜÛÛ: âãÞÛëâ ÇÑÞÈê äÛ a H O = 1 (lambert, Wyllie,
2

1972) Û Ò,,ã âßÒÒÜÛÒ äÛ a

H2 O

= 0.5 , ,ãÜã-ë,,ÞÒÝÛâ-

Þãß éÞÛÒ (øÒ~ëÝ, 1973). P-T äßÒêÀ ßÒêßãéÛÑß ÝÞã,,Ûêã, ÝãßäÞÒÝâ ÕÒ,,ÒÜ ÔÝâ äã ÞÛêÒêëÜÀß ÜÜÀß (, äflßãë,,ãÞÈÜÛÝi): B (Boundy et al., 1992); AG - (Austheim, Griffin, 1985); J - (Jamtveit et al., 1990).

1995) Ü êãß ãâÜã,ÜÛÛ, ~êã ÛÑãêãäÜÀÒ iÝêÒÛâêÛÝÛ ãÞãßÛê flÝãÇÀ äãÝÑÀ,ê Ò,,ã ÜÞãÚÒÜÜÀØ iÝêÒ. ûÞÒëÒê, ãÜÝã, ÑßÒêÛêÈ, ~êã äÒ,Û~ÜÀØ, ââã^ÛÛëÛØ â ßÛÜÒÞßÛ ÝÞã,,Ûêã,ã,,ã ä,,ÒÜÒÑÛâ ãÞãßÛê ÇÀÞ ÑãÝëßÒÜêÛã,Ü , ë,,ãØ ÇãêÒ (Erambert, Austrheim, 1993, Ûâ. 5), ÛÑ ~Ò,,ã ßãÚÜã ÑÝÞ~ÛêÈ, ~êã , ÝÞã,,Ûêi ßã,,ëê äÛâëêâê,ã,êÈ ãÞãßÛêÀ ,ëi ,,ÒÜÒ^ÛØ. ÕãÞÒÒ âÒÈÒÑÜÀÒ ÑßÒ~ÜÛfl, äã Ü?Òßë ßÜÒÜÛ, ãêÜãâflêâfl Ýã ,êããßë ,Üã,ÒâÛ. ×ÒÈ äÛ Ò,,ã ÛâäãÞÈÑã,ÜÛÛ ÇÞâfl âãâê, ~Ûâêã,,ã ä-

,,ãÜÛê, iãêfl êãê ßÛÜÒÞ , ,ÛÒ âßãâêãflêÒÞÈÜãØ éÑÀ , ÝÞã,,Ûêi ÝãßäÞÒÝâ ÕÒ,,ÒÜ ÔÝâ ÜÛÝÒß äãÝ ÜÒ ãÝëßÒÜêÛã,Þâfl. ûÝãÒÒ, ÜãÇããê, ÒâêÈ ÜÒßÞã ÜÜÀi ã êãß, ~êã ÛÑ ÇÒÞÀi âÞ , ÝÞã,,Ûêi ,âêÒ~Òêâfl ÞÛ?È éÒÜ,,Ûê, Üã â ,ÀâãÝÛß (20-30%) âãÒÚÜÛÒß ä,,ãÜÛêã,ãØ ßãÞÒÝëÞÀ (êÇÞ. 4; Austrheim, Griffin, 1985; Boundy et al., 1992). øããÇÜãÒ ÜÇÞÒÜÛÒ Ò?ÛêÒÞÈÜÀß ãÇÑãß ßÒÜflÒê äãÞãÚÒÜÛÒ ßãÜã,ÛÜêÜÀi ÞÛÜÛØ ,Üã,ÒâÛfl (2) Ü P-T Û,,ßßÒ, ÇÒÑëâÞã,Üã âÝÑÀ,flâÈ, ÝÝ ÇëÒê äãÝÑÜã ÜÛÚÒ, Ü ã^ÒÜÝi ÝêÛ,ÜãâêÛ ,ãÀ ,ã éÞÛÒ. áÞfl ãäÒÒÞÒÜÛfl êÒßäÒêëÀ Ü äÛÝÒ ßÒêßãéÛÑß ÝãßäÞÒÝâ ÕÒ,,ÒÜ ÔÝâ ÜßÛ ÛâäãÞÈÑã,Þâfl Grt-Cpx êÒßãßÒê (Krogh, 2000). ûãâê,À âãâëÒâê,ëÛi ,,Üê Û ãßé^Ûê (ÝÝ , ßêÛ^Ò, êÝ Û , âêÛÜ,,Òi) äãÝÑÀ,ê êÒßäÒêëë Ü äÛÝÒ ßÒêßãéÛÑß 730 Á 50Àû. áÞfl ãäÒÒÞÒÜÛfl âãäflÚÒÜÜã,,ã ,ÞÒÜÛfl ÛâäãÞÈÑã,Þâfl Cpx-Pl-Qtz ÇãßÒê (øÒ~ëÝ, 1992), ãê,Ò~ÛØ ,Üã,ÒâÛ: Ab(, äÞ,,ÛãÝÞÑÒ) = Jd(, ÝÞÛÜãäÛãÝâÒÜÒ) + Qtz.(3) øãâÝãÞÈÝë , ÝÞã,,ÛêÒ äÞ,,ÛãÝÞÑ ãêâëêâê,ëÒê, äãÝÑÜÛfl ÇãßÒê âããê,Òêâê,ëê ßÛÜÛßÞÈÜãßë ÑÜ~ÒÜÛ ,ÞÒÜÛfl (Pmin): ãßé^ÛêÀ ÛÑ ßêÛ^À Û ÛÑ âêÛÜ,,Òã,, âãÒÚÛÒ ã 53 ßãÞ. % ÚÒÛê Û ââã^ÛÛëÛÒ â Ý,^Òß, äÛ 730Àû ê ãÝãÞã 19 ÝÇ (Ûâ. 6). ñßÒêÛß, ~êã , â~Òêi ÛâäãÞÈÑã,Þâfl ÜÒ ~ÛâêÀØ ÞÈÇÛê, âãâê, äÞ,,ÛãÝÞÑ (Ab70) ÛÑ ÛâiãÜã,,ã ,,ÜëÞÛê. øÛ ,,ÒÒÜÛÛ äãä,ÝÛ Ü ÜÒÛÒÞÈÜãâêÈ ê,Òã,,ã Ab-An âê,ã ÛâäãÞÈÑã,ÞÛâÈ ÜÜÀÒ (Perchuk et al., 1991). âÜÛÚÒÜÛÒ ßãÞÈÜãØ ãÞÛ ÞÈÇÛê , äÞ,,ÛãÝÞÑÒ âßÒÒê ÛÑãäÞÒêÀ , ÇãÞÒÒ ,ÀâãÝãÇÜë ãÇÞâêÈ. ùÇ ÝêÛ,ÜãâêÛ ,ãÀ ,ã éÞÛÒ Ü äÛÝÒ ÝÞã,,Ûêã,ã,,ã ßÒêßãéÛÑß , ÝãßäÞÒÝâÒ ÕÒ,,ÒÜ ÔÝâ ßãÚÜã âëÛêÈ äã ,Üã,ÒâÛ (2). ÷ P-T Û,,ßßÒ (Ûâ. 6) äÛ,ãflêâfl âããê,Òêâê,ëÛÒ ÛÑãÞÛÜÛÛ ( a H2 O = const), ââ~ÛêÜÜÀÒ Þfl ãßé^Ûê (Jd53) Û éÒÜ,,Ûê (Prg25) Ü ãâÜã,ÜÛÛ ÝâäÒÛßÒÜêÞÈÜÀi ÜÜÀi (Holland, 1979), â äãä,ÝßÛ Ü ÜÒÛÒÞÈÜãâêÈ ÝÞÛÜãäÛãÝâÒÜ (øÒ~ëÝ, 1992) Û ä,,ãÜÛê-ßëâÝã,Ûêã,ã,,ã ê,Òã,,ã âê,ã (Eugster et al., 1972). þë,,ÛêÛ,ÜãâêÈ ,ãÀ ââ~ÛêÀ,ÞâÈ äã ÜÜÀß (Holland, Powell, 1990). øã ,ÑÛßÜãßë äãÞãÚÒÜÛ ßãÜã,ÛÜêÜÀi ÞÛÜÛØ, ãêÜãâflÛiâfl Ý ,Üã,ÒâÛ (2), Û êÒßãÇãßÒêÛ~ÒâÝÛi ã^ÒÜãÝ Þfl äÛÝ ßÒêßãéÛÑß (~ 730Àû Û ~19 ÝÇ) ÞÒ,,Ýã ,ÛÒêÈ, ~êã ÝêÛ,ÜãâêÈ ,ãÀ ,ã éÞÛÒ ÇÀÞ ÜÒ,ÀâãÝãØ ( a H2 O < 0.4). øããÇÜÀÒ ã^ÒÜÝÛ Ûëê ,ÑÒÑ â ?ÛãÝã âäãâêÜÒÜÜãØ êã~ÝãØ ÑÒÜÛfl ã âëÒâê,ÒÜÜã ,ãÜãß éÞÛÒ , ÝÞã,,Ûêi ÝãßäÞÒÝâ ÕÒ,,ÒÜ ÔÝâ. ýÒß ÜÒ ßÒÜÒÒ ÛßÒÜÜã , êãß âÞë~Ò ë~ÛêÀ,êâfl ÒÞÈÜÀÒ âãâê,À âãâëÒâê,ëÛi ßÛÜÒÞã, Û âÜÛßÒêâfl ,À?ÒëÝÑÜÜãÒ äãøæýúùóùÙð? êãß 10 < 2 2002

a

H2 O

= 0.5
=1


?ôóùÙðý? ôùõøóæôûÔ ÕæúÙæ÷ Ôúôû, ÷ùú׿Ùð?

125

êÛ,ãÒ~ÛÒ ßÒÚë êÒßãßÒêÛ~ÒâÝÛßÛ ã^ÒÜÝßÛ Û ,ãÜÀß âãÞÛëâãß ÇÑÞÈê. × âßãß ÒÞÒ, äÛ ëßÒÒÜÜãØ ÝêÛ,ÜãâêÛ ,ãÀ ,ã éÞÛÒ ( a H2 O < 0.4) ÝÛ,fl âãÞÛëâ ÇÑÞÈê âßÒÒêâfl , ãÇÞâêÈ ÇãÞÒÒ ,ÀâãÝÛi êÒßäÒêë, ,À,ãfl êÝÛß ãÇÑãß ÝÞã,,Ûê ÛÑ ãÇÞâêÛ äÞ,ÞÒÜÛfl (Ûâ. 6). úÒ,,ÒââÛ,ÜÀØ ßÒêßãéÛÑß (ßéÛÇãÞÛêã,ÀØ êä). áÞfl ãäÒÒÞÒÜÛfl ,ÞÒÜÛfl Ü êãß êäÒ ÛâäãÞÈÑã,Þâfl Cpx-Pl-Qtz ÇãßÒê (øÒ~ëÝ, 1992) Û âãâê,À ,,,Ûê (Jd3)-äÞ,,ÛãÝÞÑã,Ài (An14) âÛßäÞÒÝêÛêã,, ãÇÑã,ÜÜÀi , iãÒ ÒÝãßäÒââÛÛ äã ãßé^Ûêë â Ý,^Òß. ûããê,Òêâê,ëfl êãßë êäë ÛÑãäÞÒê äÒâê,ÞÒÜ Ü Ûâ. 6. û êÒßäÒêëãØ ÒÞã ãÇâêãÛê âÞãÚÜÒÒ, êÝ ÝÝ ,,Üê Û ÝÞÛÜãäÛãÝâÒÜ , iãÒ Ò,,ÒââÛ,Üã,,ã ßÒêßãéÛÑß ÜÒ ãÇßÒÜÛ,êâfl Fe Û Mg (øÒ~ëÝ Û ., 1996; Aranovich, Pattison, 1995). áë,,ÛÒ ÚÒ ãÇßÒÜÜÀÒ ,Üã,ÒâÛfl-êÒßãßÒêÀ , äããÒ ãêâëêâê,ëê. øãêãßë ßÀ ,ãâäãÞÈÑã,ÞÛâÈ ÒÑëÞÈêêßÛ ÛÑë~ÒÜÛfl éÞÛÜÀi ,ÝÞ~ÒÜÛØ , Ý,^Ò ÛÑ êãØ ÚÒ ÑãÜÀ äÞâêÛ~ÒâÝÛi Òéãß^ÛØ ßéÛÇãÞÛêã,ã,,ã êä Ü ãâêã,Ò ÿãÜâÞãë (Andersen et al., 1991a), ~êã Û ÛÑë~ÒßÀØ ÝÞã,,Ûê. ðÑãiãÀ Þfl ÜÒÛÑßÒÜÜÀi ,ãÜÀi éÞÛÜÀi ,ÝÞ~ÒÜÛØ ÛÑ êÛi äãã äãÝÑÜÀ Ü P-T Û,,ßßÒ (Ûâ. 6). øÒäãÞ,,fl, ~êã Ñ,ÛêÛÒ äÞâêÛ~ÒâÝÛi Òéãß^ÛØ ßéÛÇãÞÛêã,ã,,ã êä âã,äÞã äã ,ÒßÒÜÛ â ãÇÑã,ÜÛÒß âÛßäÞÒÝêÛêã, , ÝÞã,,ÛêÒ, P-T äßÒêÀ Ò,,ÒââÛ,Üã,,ã ßÒêßãéÛÑß ëâêÜ,ÞÛ,êâfl äã äÒÒâÒ~ÒÜÛ êÛi ÛÑãiã â ÛÑãäÞÒêãØ (Jd3), ãê,Ò~ÒØ êäë âÛßäÞÒÝêÛêããÇÑã,ÜÛfl. ûããê,Òêâê,ëÛÒ ã^ÒÜÝÛ êÒßäÒêëÀ Û ,ÞÒÜÛfl (ãÝãÞã 500Àû Û 6 ÝÇ) ãê,Ò~ê P-T ëâÞã,Ûflß ßéÛÇãÞÛêã,ãØ é^ÛÛ ßÒêßãéÛÑß Û Üiãflêâfl , äãÞÒ âêÇÛÞÈÜãâêÛ ÝÛÜÛê (Ûâ. 6), ?ÛãÝã äÒâê,ÞÒÜÜã,,ã , äããÒ. ýÝÛß ãÇÑãß, ãiÞÚÒÜÛÒ ÝÞã,,Ûê ÛÑ ÝãßäÞÒÝâ ÕÒ,,ÒÜ ÔÝâ , iãÒ ÒÝãßäÒââÛÛ Ü 13 ÝÇ âãâê,ÛÞã ~ 230Àû. øÛ ,ÒÜâê,Ò ãÇÒ,,ã ,ÞÒÜÛfl ÞÛêãâêêÛ~ÒâÝãßë, ãÇÒÒ äÒÜÛÒ ,ÞÒÜÛfl âããê,Òêâê,ëÒê ,ÒêÛÝÞÈÜãßë äÒÒßÒÒÜÛ äããÀ Ü ~ 40 Ýß. øúùáùóìðýæó?÷ùûý? P-T ?×ùó?åðð áÜÜÀÒ äã âÝããâêflß ßÒêßãéÛÑß , ÝÞã,,Ûêi ÝãßäÞÒÝâ ÕÒ,,ÒÜ ÔÝâ âãÒÚÛêâfl , Çãêi (Erambert, Austrheim, 1993; Boundy et al., 1996, 1997). , äãâÞÒÜÛi ,ëi Çãêi ßÛÜÛßÞÈÜfl âÝããâêÈ ãiÞÚÒÜÛfl (10-15 Àû/ßÞÜ. ÞÒê) ââ~ÛêÀ,ÞâÈ äã ÑÜ~ÒÜÛflß ÇâãÞêÜã,,ã ,ãÑâê Û êÒßäÒêëß Ü ,,Þ,ÜÀi êäi ßÒêßãéÛÑß ÝÞã,,Ûê. øÛÜÛßfl ,ã ,ÜÛßÜÛÒ ÜÒãäÒÒÞÒÜÜãâêÛ êÒßäÒêë ÑÝÀêÛfl ÛÑãêãäÜÀi âÛâêÒß Û ÇãÞÈ?ãØ ÑÇãâ ÛÑãêãäÜÀi êÛã,ãÝ, ÒÞÈÜÀÒ ã^ÒÜÝÛ âÝããâêÒØ ãiÞÚÒÜÛfl ßã,,ëê âëÒâê,ÒÜÜã ãêÞÛ~êÈâfl ãê ÑÜ~ÒÜÛØ, äÛ,ãÛßÀi ,êãßÛ.
øæýúùóùÙð? êãß 10 < 2 2002

× ÇãêÒ õ. ?ÈÇÒ Û ÿ. ÔâêiØß (Erambert, Austrheim, 1993) ,Òßfl ßÒêßãéÛÑß ã^ÒÜÛ,ÞãâÈ äã iÝêÒÛâêÛ~ÒâÝãßë ââêãflÜÛ ÛééëÑÛÛ , äÒÒiãÜãØ ÑãÜÒ ßÒÚë âêÛÜ,,Òãß Û ,,Üêãß. øããÇÜÀÒ ã^ÒÜÝÛ Ò, ÞÛ ßãÚÜã â~ÛêêÈ äÒ^ÛÑÛãÜÜÀßÛ, äãâÝãÞÈÝë ,êãÀ Ò?ÞÛ ÛÑãêÒßÛ~ÒâÝë Ñ~ë (1-4 ßÞÜ. ÞÒê äÛ 700Àû Û 6-22 ßÞÜ. ÞÒê äÛ 650Àû), , ã ,Òßfl ÝÝ äã^Òââ ÜãâÛÞ fl,Üã ÜÒÛÑãêÒßÛ~ÒâÝÛØ iÝêÒ (ãiÞÚÒÜÛÒ â 730 ã 500Àû, Ûâ. 6). ×À?ÒëÝÑÜÜÀÒ ÜÒãâêêÝÛ ßÀ äãâêÞÛâÈ ÛÑÇÒÚêÈ äÛ Ò?ÒÜÛÛ âÞÒëÒØ ÛééëÑÛãÜÜãØ Ñ~Û. øùûýÔ÷ù×ôÔ ñÔáÔ?ð ð úæ?æ÷ðæ áÞfl ãäÒÒÞÒÜÛfl âÝããâêÒØ êÒßäÒêëÜãØ Û ÇÛ~ÒâÝãØ ,ãÞ^ÛÛ ÝÞã,,Ûê ßÀ ßãÒÞÛã,ÞÛ â,,ÞÚÛ,ÜÛÒ ,,ÛÒÜê ÝãÜ^ÒÜê^ÛØ Fe Û Mg Ü ,,ÜÛ^Ò âêÛÜ,,Ò â ,ßÒÛß ,,Üêãß. áÞfl êã,,ã ÛâäãÞÈÑã,ÞâÈ âããê,Òêâê,ëfl ÜÒÛÑãêÒßÛ~ÒâÝfl ÛééëÑÛãÜÜfl Ñ~, Ý ÝãêããØ ßÀ ãÇÞÛâÈ , äãâÞÒÜÛi ÛââÞÒã,ÜÛfli (øÒ~ëÝ, þÛÞÛäã, 2000Ç; Perchuk, Phillippot, 2000). õÞãßãÜÀÒ âêÛÜ,,ÒÀ (2h ~ 20-40 ßÝß) fl,Þflêâfl ÒÑëÞÈêêãß ÑÞÒ~Û,ÜÛfl ßÛÝãêÒÛÜ , ,,ÜêÒ Ü ÜÜÒØ âêÛÛ ãâê Ò,,ã ÝØß , äÛâëêâê,ÛÛ ,ããâãÒÚÒ,,ã éÞÛ (øÒ~ëÝ, ×Þßã,, 1995). ùêÞÛ~ÛêÒÞÈÜfl ãâãÇÒÜÜãâêÈ âêÛÜ,,Òã, ÛÑ ÝãßäÞÒÝâ ÕÒ,,ÒÜ ÔÝâ - ÇãÞÈ?fl ßãÜãâêÈ (2h > 90 ßÝß), êÝÚÒ ÜÞÛ~ÛÒ ^Òäã~ÒÝ ßÛÜÒÞÈÜÀi ,ÝÞ~ÒÜÛØ, ~Ò ,âÒ,,ã äÒâê,ÞÒÜÜÀi ãßé^Ûêãß Û Ý,^Òß (Ûâ. 4, 2Ç). ×ÒãflêÜã, , ,,ÜëÞÛêã,ãß ,,ÜêÒ Ü ßÒâêÒ âêÛÜ,,Òã, ÛßÒÞÛâÈ ÝëäÜÀÒ äãÞãâÝÛ (êÒÛÜÀ), ÑäãÞÜÒÜÜÀÒ ßÛÜÒÞßÛ ,,ÜëÞÛêã,ã,,ã ä,,ÒÜÒÑÛâ, ÝãêãÀÒ ,äãâÞÒâê,ÛÛ ÇÀÞÛ ÑßÒÒÜÀ ãßé^Ûêãß, ,,Üêãß Û Ý,^Òß. ðÑ,ÒâêÜã, ~êã ÜÜÛØ äÒ,Û~ÜÀØ ,,ÜëÞÛêã,ÀØ ,,Üê (Grt1) , ÒÝ^Ûfli ÝÞã,,ÛêÛÑ^ÛÛ ÜÒ ë~âê,ã,Þ (Austrheim, Griffin, 1985). ûÞÒã,êÒÞÈÜã, ÜëÝÞÒ^Ûfl Û ãâê äãÑÜÒ,,ã ÝÞã,,Ûêã,ã,,ã ,,Üê (Grt2) äãÛâiãÛÞÛ Ü Ò,,ã ,,Üfli Û Ü âêÒÜÝi êÒÛÜ ÇÒÑ Ûi âê,ãÒÜÛfl. × êãß âÞë~Ò ÛâiãÜãÒ ÛÑßÒÜÒÜÛÒ ÝãÜ^ÒÜê^ÛÛ Ü ,,ÜÛ^Ò ßÒÚë ,ëßfl ,,ÜêßÛ äãÛâiãÛÞã âÝ~ÝããÇÑÜã, ~êã Û ÇëÒê ãêÚÒÜã , Ü~ÞÈÜãß ëâÞã,ÛÛ Ñ~Û. ü~ÛêÀ,fl ßãéãÞã,,Û âêÛÜ,,Òã,, Þfl ßãÒÞÛã,ÜÛfl Ûi ,,ãßã,,ÒÜÛÑ^ÛÛ ÇÀÞ ÛâäãÞÈÑã,Ü Ñ~ ã ÛééëÑÛÛ ÛÑ äãêflÚÒÜÜãØ äÞâêÛÜÀ ã,,ÜÛ~ÒÜÜãØ ßãÜãâêÛ , ÇÒâÝãÜÒ~Üãß äãâêÜâê,Ò (Lasaga, 1998). æÒ ÜÞã,,ãß , êÒäÞãéÛÑÛÝÒ fl,ÞflÒêâfl ,ÒâÈß ÛÑ,ÒâêÜfl Ñ~ ãÇ ãiÞÚÒÜÛÛ äÞâêã,ã,,ã êÒÞ (ØÝÛ) ã,,ÜÛ~ÒÜÜãØ ßãÜãâêÛ (Carslaw, Jaeger, 1986).


126 Mg, éãß. Ò. 2.0

øæú?üô, þðóðøù

, Ýãêããß ãêâëêâê,ëÒê äÒÒßÒÜÜÀØ ÝãééÛ^ÛÒÜê D(t ).
y = - 1.0938x + 2.5242 R = - 0.998

1.5

øãâÝãÞÈÝë ÛÑßÒÜÒÜÛÒ ÝãÜ^ÒÜê^ÛÛ , äÒÒiãÜãØ ÑãÜÒ ßÒÚë âêÛÜ,,Òãß Û flãß âãÑÒêâfl ,ëßfl ÝãßäãÜÒÜêßÛ - ß,,ÜÛÒß Û ÚÒÞÒÑãß (Ûâ. 4, 7, êÇÞ. 5), ÇëÒß â~ÛêêÈ, ~êã ÛééëÑÛãÜÜÀØ äã^Òââ ÛßÒÞ ÇÛÜÜÀØ iÝêÒ, ÑÜ~Ûê ßãÚÒê ÇÀêÈ ââßãêÒÜ , ãêÜã?ÒÜÛÛ êÛi ,ëi ÝêÛãÜã, â ÛâäãÞÈÑã,ÜÛÒß ,ÒÞÛ~ÛÜÀ #Mg. áÞfl êÒãÒêÛ~ÒâÝã,,ã Ò?ÒÜÛfl Ñ~Û êÒÇëÒêâfl ãäÒÒÞÛêÈ Ü~ÞÈÜÀÒ Û ,,ÜÛ~ÜÀÒ ëâÞã,Ûfl. øã éãßÒ ÑãÜã,ã,,ã äãéÛÞfl ~ÒÒÑ âêÛÜ,,Ò (Ûâ. 4) ÞÒ,,Ýã äãÜflêÈ, ~êã ÛééëÑÛãÜÜÀÒ äÒãÇÑã,ÜÛfl ÑêãÜëÞÛ ÞÛ?È ëÑÝÛÒ ÝÒ,ÀÒ ãÇÞâêÛ. ûÞÒã,êÒÞÈÜã, , ^ÒÜêÞÈÜãØ ~âêÛ âêÛÜ,,Ò âãiÜÛÞâfl Ò,,ã ÛâiãÜÀØ âãâê, (C2), ÜÞã,,Û~ÜÀØ âãâê,ë ÝØßÀ. ûãâê, ÛâiãÜã,,ã ,,Üê (C1), ,ßÒÒ,,ã âêÛÜ,,Ò, ëâêÜ,ÞÛ,Òêâfl äã ,,ãßã,,ÒÜÜãßë flë, ãê,Ò~Òßë ÜÜÒßë êäë ,,ÜëÞÛêã,ã,,ã ßÒêßãéÛÑß. øÛ ÛÜÒêÜãß äã,ÒÒÜÛÛ ,,ÜëÞÛêã,ã,,ã ,,Üê , äã^ÒââÒ ÝÞã,,ÛêããÇÑã,ÜÛfl (Austrheim, Griffin, 1985) ÛâiãÜãÒ ÛÑßÒÜÒÜÛÒ âãâê, Ü ,,ÜÛ^Ò âêÛÜ,,Ò-,ßÒÛØ ,,Üê ãÞÚÜã ÇÀÞã ßÒÜflêÈâfl âÝ~ÝããÇÑÜã. ûÞÒã,êÒÞÈÜã, Ü~ÞÈÜãÒ ëâÞã,ÛÒ Þfl ÛééëÑÛãÜÜãØ Ñ~Û ÑäÛ?Òêâfl êÝ: C ( x', t ' = 0 ) = ( x' ) ; ( x' ) = C 1 , x' 1 , ( x' ) = C 2 , x' < 1 , (7)

1.0

0.5 0.5

1.0

1.5

2.0 Fe, éãß. Ò.

úÛâ. 7. ôãÒÞfl^Ûfl êãßÜÀi âãÒÚÜÛØ ÚÒÞÒÑ Û ß,,ÜÛfl ,ãÞÈ ÞÛÜÛÛ ßÛÝãÑãÜã,ã,,ã äãéÛÞÛã,ÜÛfl ~ÒÒÑ ÛééëÑÛãÜÜë ÑãÜë ßÒÚë âêÛÜ,,Òãß Û ,ßÒÛß ,,Üêãß. ùê~ÒêÞÛ,ã äãfl,ÞÒÜ ãÇêÜfl ÞÛÜÒØÜfl Ñ,ÛâÛßãâêÈ â ÝãééÛ^ÛÒÜêãß ÝãÒÞfl^ÛÛ R = - 0.998 äã 56 êã~Ýß ÜÞÛÑ (âß. êÝÚÒ êÇÞ. 5).

ùÜãßÒÜãÒ ë,ÜÒÜÛÒ ÛééëÑÛÛ, ÛÑ,ÒâêÜãÒ êÝÚÒ ÝÝ ,êããØ ÑÝãÜ þÛÝ, ÛßÒÒê ,Û C C -------i = D ----------i , 2 t x
2

,,Ò (x) éëÜÝ^Ûfl Ü~ÞÈÜã,,ã âäÒÒÞÒÜÛfl #Mg , flÒ (C1) Û âêÛÜ,,ÒÒ (C2) ßãÜãâêÈ 2h. ðÑãÞÛã,ÜÜãâêÈ ÛééëÑÛãÜÜãØ ÑãÜÀ Ü ,,ÜÛ^Ò ßÒÚë âêÛÜ,,Òãß Û ,ßÒÛß ,,Üêãß äÒäflêâê,ëÒê äãÜÛÝÜã,ÒÜÛ ÛÑãßãéÜÀi ÝãßäãÜÒÜêã, ÛÑ,ÜÒ (ÛÑ éÞÛ ÛÞÛ ÛÑ âãâëÒâê,ëÛi ßÛÜÒÞã,). ýÝÛß ãÇÑãß, ÇëÒß äãÞ,,êÈ, ~êã ÜÜfl âÛâêÒß ÑÝÀê. ùÇÒÒ Ò?ÒÜÛÒ ÛééëÑÛãÜÜãØ Ñ~Û ã ÛééëÑÛÛ ÛÑ äãêflÚÒÜÜãØ äÞâêÛÜÀ ã,,ÜÛ~ÒÜÜãØ ßãÜãâêÛ (2h) , ÇÒâÝãÜÒ~Üãß äãâêÜâê,Ò


(4)

,,Ò Ci - ÝãÜ^ÒÜê^Ûfl ÛééëÜÛëÒ,,ã ÝãßäãÜÒÜê "i ", x - ââêãflÜÛÒ âÒÒÛÜÀ âêÛÜ,,Ò, D(t ) - ÝãééÛ^ÛÒÜê ÛééëÑÛÛ ÝãßäãÜÒÜê "i ", ÑÜÜÀØ ÝÝ éëÜÝ^Ûfl ,ÒßÒÜÛ. ðâäãÞÈÑëfl äãâêÜã,ÝÛ
t

t' =


0

D() ----------- d , 2 h

(5)

1 C ( x', t ' ) = ------------2 t'

-



( x' - ) exp - ------------------- ( ) d , 4t'
2

,,Ò - äÒÒßÒÜÜfl ÛÜêÒ,,Ûã,ÜÛfl, Û x' = x / h , ,,Ò h - äãÞëßãÜãâêÈ âêÛÜ,,Ò, äÛiãÛß Ý Üã,ãØ ëäãÒÜÜãØ ÑäÛâÛ ÛééÒÒÜ^ÛÞÈÜã,,ã ë,ÜÒÜÛfl (4) Ci Ci ------- = ------------- , 2 t' ( x' )
2

,,Ò - äÒÒßÒÜÜfl ÛÜêÒ,,Ûã,ÜÛfl, äãâÞÒ ÛÜêÒ,,Ûã,ÜÛfl Û äãâêÜã,ÝÛ Ü~ÞÈÜã,,ã ëâÞã,Ûfl (7) Òê ÛâÝãßãÒ ~âêÜãÒ Ò?ÒÜÛÒ: C2 - C1 1 + x' 1 - x' C ( x', t ' ) = C 1 + ----------------- erf ------------ + erf ------------ , (8) 2 t' 2 t' 2 , Ýãêããß erf - éëÜÝ^Ûfl ã?ÛÇãÝ, ÛßÒfl âÞÒëÛØ ,Û
øæýúùóùÙð? êãß 10 < 2 2002

(6)


ýÇÞÛ^ 5. ü~âêãÝ êãäãiÛßÛ~ÒâÝã,,ã äãéÛÞfl ,ãÞÈ ÑãÜÀ äÒÒiã âêÛÜ,,Ò-flã ,,Üê (Ûâ. 2Ç), ?,, 3 ßÝß øÒÒiãÜfl ÑãÜ 89 40.65 0.09 23.05 0.03 14.74 0.11 14.58 7.15 0.02 0.00 100 2.97 1.98 0.00 0.00 0.04 0.86 0.01 1.59 0.56 0.00 0.00 8.01 0.65 0.19 0.28 0.00 0.52 0.18 0.62 0.18 0.31 0.00 0.51 0.18 0.58 0.18 0.34 0.00 0.47 0.17 0.54 0.19 0.36 0.01 0.43 0.18 8.00 8.02 8.01 8.02 0.50 0.18 0.40 0.01 0.40 0.18 8.00 0.46 0.19 0.44 0.01 0.37 0.19 8.01 0.44 0.19 0.44 0.01 0.35 0.19 8.01 0.43 0.19 0.45 0.01 0.34 0.19 8.00 0.42 0.19 0.46 0.01 0.33 0.19 2.98 2.04 0.01 0.00 0.00 0.91 0.01 1.51 0.54 0.00 0.00 2.96 2.00 0.00 0.00 0.04 1.05 0.01 1.43 0.53 0.00 0.00 2.97 1.99 0.00 0.00 0.03 1.11 0.03 1.32 0.56 0.00 0.00 2.95 2.01 0.00 0.01 003 1.23 0.03 1.22 0.54 0.00 0.00 2.98 2.00 0.00 0.01 0.01 1.31 0.02 1.11 0.56 0.01 0.00 12 O 2.98 2.00 0.00 0.00 0.02 1.33 0.04 1.06 0.57 0.00 0.00 2.98 1.99 0.00 0.01 0.02 1.37 0.03 1.04 0.56 0.00 0.00 2.98 1.99 0.00 0.00 0.03 1.40 0.03 1.01 0.56 0.01 0.00 2.96 2.01 0.00 0.01 0.01 1.42 0.03 0.99 0.56 0.00 0.00 8.01 0.41 0.19 0.47 0.01 0.33 0.19 99.2 100 99.24 98.8 98.8 99.1 99.8 99.0 99.3 98.0 2.98 2.01 0.00 0.01 0.00 1.42 0.03 0.97 0.58 0.01 0.00 8.00 0.41 0.19 0.47 0.01 0.32 0.19 100.0 2.92 2.00 0.00 0.01 0.07 1.44 0.03 0.97 0.58 0.01 0.00 8.03 0.40 0.19 0.47 0.01 0.31 0.18 98.4 2.96 2.02 0.00 0.01 0.01 1.44 0.03 0.96 0.58 0.00 0.00 8.01 0.40 0.19 0.48 0.01 0.32 0.19 99.0 2.96 2.01 0.00 0.01 0.03 1.45 0.04 0.93 0.60 0.01 0.00 8.01 0.39 0.20 0.48 0.01 0.31 0.20 40.24 0.04 23.35 0.09 14.78 0.15 13.68 6.80 0.03 0.00 39.99 0.06 22.96 0.00 17.61 0.20 12.95 6.74 0.00 0.00 39.41 0.08 22.47 0.03 18.12 0.41 11.77 6.95 0.02 0.00 38.72 0.14 22.35 0.00 19.74 0.40 10.75 6.66 0.00 0.01 38.92 0.10 22.19 0.00 20.65 0.33 9.75 6.81 0.03 0.00 38.89 0.08 22.10 0.03 21.07 0.63 9.32 6.93 0.03 0.00 39.07 0.09 22.18 0.00 21.87 0.46 9.17 6.87 0.02 0.02 38.71 0.03 21.94 0.00 22.14 0.45 8.81 6.80 0.09 0.00 38.48 0.22 22.23 0.04 22.33 0.50 6.68 6.85 0.02 0.00 38.32 0.09 21.95 0.02 21.75 0.46 8.39 6.99 0.04 0.00 38.15 38.14 0.13 0.14 22.14 22.01 0.07 0.00 23.58 22.36 0.49 0.46 8.51 8.24 7.12 7.01 0.05 0.02 0.00 0.04 38.21 0.10 21.98 0.00 22.84 0.56 8.09 7.20 0.05 0.00 38.61 0.04 22.09 0.00 22.82 0.56 8.05 7.13 0.07 0.00 99.4 2.98 2.01 0.00 0.00 0.02 1.46 0.04 0.92 0.59 0.01 0.00 8.01 0.39 0.20 0.48 0.01 0.31 0.20 90 91 92 93 94 95 96 97 98 99 100 101 102 103 ûêÛÜ,,Ò 104 38.38 0.03 21.99 0.00 22.11 0.62 8.03 7.35 0.00 0.00 98.5 2.98 2.01 0.00 0.00 0.01 1.43 0.04 0.93 0.61 0.00 0.00 8.01 0.39 0.20 0.47 0.01 0.31 0.20 127

øæýúùóùÙð? êãß 10 < 2 2002

ôãßäãÜÒÜêÀ



86

87

88

SiO2 TiO2 Al2O3 Cr2O3 FeO MnO MgO CaO Na2O K2O

40.72 0.03 23.14 0.00 14.39 0.22 14.92 7.11 0.03 0.00

40.33 0.01 23.03 0.00 13.67 0.22 14.76 7.04 0.02 0.03

40.47 0.03 23.17 0.00 13.83 0.11 14.69 6.97 0.01 0.00

ûëßß 101

99.1

99.3

?ôóùÙðý? ôùõøóæôûÔ ÕæúÙæ÷ Ôúôû, ÷ùú׿Ùð?

Si Al Cr Ti Fe3 Fe2 Mn Mg Ca Na K

2.96 1.99 0.00 0.00 0.05 0.83 0.01 1.62 0.55 0.00 0.00

2.97 2.00 0.00 0.00 0.02 0.82 0.01 1.62 0.56 0.00 0.00

2.98 2.01 0.00 0.00 0.01 0.84 0.01 1.61 0.55 0.00 0.00

ûëßß

8.01

8.01

8.01

XMg XCa XAlm XSps XPrp XCrs

0.66 0.18 0.27 0.00 0.53 0.18

0.66 0.18 0.27 0.00 0.54 0.18

0.66 0.18 0.28 0.00 0.53 0.18


128 Mg / ( Mg + Fe ), % 70 û1 = 67

øæú?üô, þðóðøù 1.E + 02 ()
T, ÀC 700

1 øãÞÜfl ,,ãßã,,ÒÜÛÑ^Ûfl 2 3 4

1.E + 01
500

60

5.00 1.E +0 1.00

100 0 t, ßÞÜ. ÞÒê

50 1.E - 01 t ' = 0.03 40 û2 = 39 1.E - 02 0.03 30 -3 -2 -1 0 1 2 3 x' = x/h 1.E - 03 10-2 1.E + 0 1.4 ßÞÜ. ÞÒê 10-1 100 101 áÞÛêÒÞÈÜãâêÈ, ßÞÜ. ÞÒê (Ç) 102

úÛâ. 8. øãâÞÒã,êÒÞÈÜÀÒ âêÛÛ ,,ãßã,,ÒÜÛÑ^ÛÛ âêÛÜ,,Ò (ë-Ò 9) , ÝããÛÜêi ÇÒÑÑßÒÜãÒ ââêãflÜÛÒ (x/h) - ß,,ÜÒÑÛÞÈÜãâêÈ ,,Üê (#Mg). ÷~ÞÈÜÀÒ ëâÞã,Ûfl (t ' = 0): C1 = 67%, C2 = 39%, h = = 47 ßÝß (h - ÛâiãÜfl ,,ÜÛ^ ßÒÚë âêÛÜ,,Òãß Û ,ßÒÛß ,,Üêãß). åÛéÀ , äflßãë,,ãÞÈÜÛÝi - ÑÜ~ÒÜÛfl äÒÒßÒÜÜãØ t '. úâ~ÒêÜfl ÝÛ,fl, ãê,Ò~fl t ' = 0.03, Òê iãã?ÒÒ ãäÛâÜÛÒ êã~ÒÝ ßÛÝãÑãÜã,ã,,ã äãéÛÞfl (ÝëÚÝÛ).

1.E - 01

ùâêÜã,Ý iãÜãßÒê

t ' = 0.03

1.E - 02 0.8 ßÞÜ. ÞÒê 1.E - 03 10-2 10-1 100 101 ×Òßfl, ßÞÜ. ÞÒê 102

z

2 2 erf ( z ) = ------ exp ( - ) d ,


0

,,Ò - äÒÒßÒÜÜfl ÛÜêÒ,,Ûã,ÜÛfl. ×ÀÚÒÜÛÒ (8) ãäÛâÀ,Òê ÛÑßÒÜÒÜÛÒ ÛâiãÜã,,ã êãäãiÛßÛ~ÒâÝã,,ã äãéÛÞfl ~ÒÒÑ ,,ÜÛ^ë ßÒÚë âêÛÜ,,Òãß Û ,ßÒÛß ,,Üêãß äÛ ÞÇãØ êÒßÞÈÜãØ ÛâêãÛÛ äããÀ. úæñüó?ýÔý? õùáæóðúù×Ô÷ð? × Ý~Òâê,Ò Ü~ÞÈÜÀi ëâÞã,ÛØ (ë,ÜÒÜÛÒ 7) ,ãÑÈßÒß #Mg fl (C1 = 67), âêÛÜ,,Ò (C2 = 39) Û ?ÛÛÜë äãâÞÒÜÒ,,ã 2h = 94 Åm. øãâÞÒã,êÒÞÈÜÀÒ âêÛÛ ÛééëÑÛãÜÜãØ ,,ãßã,,ÒÜÛÑ^ÛÛ âêÛÜ,,Ò ââ~ÛêÀ,ÞÛâÈ â äãßãÈ ,ÀÚÒÜÛfl (5), ÝÝ éëÜÝ^ÛÛ ÇÒÑÑßÒÜãØ äÒÒßÒÜÜãØ (t '). ÷ Ûâ. 8 äãÝÑÜã, ~êã ÜÛÞë~?ÒÒ ãäÛâÜÛÒ ßÛÝãÑãÜã,ã,,ã äãéÛÞfl ãâêÛ,,Òêâfl äÛ t ' = 0.03, êã,, ÝÝ äãÞÜfl ,,ãßã,,ÒÜÛÑ^Ûfl âêÛÜ,,Ò ãê,Ò~Òê t ' = 5. úâäãÞ,,fl ã^ÒÜÝãØ âêÒäÒÜÛ ,,ãßã,,ÒÜÛÑ^ÛÛ ,,Üê (t ' = 0.03), ßãÚÜã äÛâêëäÛêÈ Ý ãäÒÒÞÒÜÛ ,ÒßÒÜÜãØ âãâê,ÞflÒØ P-T ,ãÞ^ÛÛ äããÀ. áÞfl êã,,ã ,ãâäãÞÈÑëÒßâfl äãiããß, ÝãêãÀØ äÛßÒÜflÞâfl , Ü?Ûi äãâÞÒÜÛi Çãêi

úÛâ. 9. ùäÒÒÞÒÜÛfl ÞÛêÒÞÈÜãâêÛ Ò,,ÒââÛ,Üã,,ã êä ßÒêßãéÛÑß. () - Ñ,ÛâÛßãâêÈ äÒÒßÒÜÜãØ t ' ãê ÞÛêÒÞÈÜãâêÛ Ò,,ÒââÛ,Üã,,ã êä ßÒêßãéÛÑß äÛ ÞÛÜÒØÜãß ãiÞÚÒÜÛÛ äããÀ (âß. ,ÒÑÝë). õãÜãâêÈ âêÛÜ,,Ò h = 47 ßÝß. ûäÞã?ÜÀÒ ÞÛÜÛÛ ãê,Ò~ê DFeMg äÛ XMg = 0.50: 1 - ÝâäÒÛßÒÜêÞÈÜÀÒ ÜÜÀÒ ÙÒâÛßã, (1987); 2 - (Loomis et al., 1985); 3 - (Chakraborty, Ganguly, 1992); 4 - (Ganguly et al., 1998). øã âêÒäÒÜÛ ,,ãßã,,ÒÜÛÑ^ÛÛ ,,Üê (t ' = 0.03) ëâêÜ,ÞÛ,Òêâfl ÞÛêÒÞÈÜãâêÈ Ò,,ÒââÛ,Üã,,ã ßÒêßãéÛÑß 1.4 ßÞÜ. ÞÒê, âããê,Òêâê,ëfl âßãßë ÜÛÑÝãßë DFeMg (ÞÛÜÛfl 4). øÛ ÛâäãÞÈÑã,ÜÛÛ ë,,Ûi ÑÜ~ÒÜÛØ DFeMg (ÞÛÜÛÛ 1-3), ÞÛêÒÞÈÜãâêÈ Ò,,ÒââÛ,Üã,,ã ßÒêßãéÛÑß âãâê,ÞflÒê ßÒÜÒÒ 1 ßÞÜ. ÞÒê. (Ç) - ñ,ÛâÛßãâêÈ äÒÒßÒÜÜãØ t ' ãê êÒÝëÒ,,ã ÑÜ~ÒÜÛfl ,ÒßÒÜÛ Ñ 1.4 ßÞÜ. ÞÒê (êÇÞ. 6), ëÝÑÀ,fl Ü äÒÝÒÜÛÒ ééÒÝêÛ,Üã,,ã ßââãäÒÒÜãâ (ãâêÜã,Ý iãÜãßÒê) Ü ëÇÒÚÒ 0.8 ßÞÜ. ÞÒê.

(øÒ~ëÝ Û ., 1998; Perchuk, Phillippot, 2000 Û .). × ãâÜã,Ò êã,,ã äãiã ÞÒÚÛê ~ÛâÞÒÜÜãÒ Ò?ÒÜÛÒ ÛÜêÒ,,ÞÈÜã,,ã ,ÀÚÒÜÛfl (5) , ^ÒÞfli ãäÒÒÞÒÜÛfl äÒÒßÒÜÜãØ t ' Þfl âÒÛÛ êÒßÞÈÜÀi ÛâêãøæýúùóùÙð? êãß 10 < 2 2002


?ôóùÙðý? ôùõøóæôûÔ ÕæúÙæ÷ Ôúôû, ÷ùú׿Ùð?

129

ýÇÞÛ^ 6. ðÑßÒÜÒÜÛÒ äÒÒßÒÜÜãØ t ' (ë-Ò 5) äÛ ÞÛÜÒØÜãß ãiÞÚÒÜÛÛ âêÛÜ,,Ò ßãÜãâêÈ 94 ßÝß ãê 730 ã 500Àû Ñ 1.4 ßÞÜ. ÞÒê (DFeMg (Ganguly et al., 1998)) T, ÀC t, ßÞÜ. ÞÒê t' ç 10-4 730 0.00 0 707 0.14 175 684 0.28 253 661 0.42 286 638 0.56 299 615 0.70 305 592 0.84 307 569 0.98 308 546 1.12 308 523 1.26 308 500 1.40 308

ÛØ â ãÛÜÝã,ÀßÛ êÒßäÒêëÜÀßÛ ßÝßÛ Û ÒÛÜãØ éëÜÝ^ÛãÜÞÈÜãØ Ñ,ÛâÛßãâêÈ ãê ,ÒßÒÜÛ, ÑÜÜã,,ã , ?ÛãÝÛi äÒÒÞi. × ÜÜãß âÞë~Ò äÒäãÞ,,ÞãâÈ, ~êã ÛÑßÒÜÒÜÛÒ êÒßäÒêëÀ , iãÒ ÒÝãßäÒââÛÛ äããÀ ÜãâÛÞã ÞÛÜÒØÜÀØ iÝêÒ (Ûâ. 9). øãßÛßã ,ÒßÒÜÛ, , ,ÀÚÒÜÛÛ (5) êÝÚÒ ë~âê,ëê ÝãééÛ^ÛÒÜê ÛééëÑÛÛ (D) Û ÑßÒ âêÛÜ,,Ò (h). øÛ ââßãêÒÜÛÛ ÇÛÜÜã,,ã äã^Òââ ^ÒÞÒâããÇÑÜã ÛâäãÞÈÑã,êÈ ÝãééÛ^ÛÒÜê ,ÑÛßãÛééëÑÛÛ (ÛÜêÒÛééëÑÛÛ) D(FeMg), Ñ,ÒßÀØ ,ÀÚÒÜÛÒß (Barrer et al., 1963) D
FeMg

D Fe D Mg ln i = ------------------------------------------ 1 + ------------- , X Mg D Mg + X Fe D Fe ln X i

(9)

, Ýãêããß i - ÝãééÛ^ÛÒÜê ÝêÛ,ÜãâêÛ ÝãßäãÜÒÜê i; Di - ÝãééÛ^ÛÒÜê ÛééëÑÛÛ, ãäÛâÀ,ÒßÀØ ë,ÜÒÜÛÒß ÔÒÜÛëâ: - Ea D i = D 0 exp -------------- , R T ( t ) ,,Ò D0 - äÒÝâäãÜÒÜ^ÛÞÈÜÀØ éÝêã; Ea - ÜÒ,,Ûfl ÝêÛ,^ÛÛ ÛééëÑÛÛ ÝãßäãÜÒÜê; R - ëÜÛ,ÒâÞÈÜfl ,,Ñã,fl äãâêãflÜÜfl; T(t ) - êÒßäÒêë ÝÝ éëÜÝ^Ûfl ,ÒßÒÜÛ (Ûâ. 9, ,ÒÑÝ), ãê,Ò~fl êÒßäÒêëÜÀß ,,ÜÛ^ß P-T êÒÜ ßÒêßãéÛÑß ÝÞã,,Ûê (Ûâ. 6). øãä,ÝãØ Ü ÜÒÛÒÞÈÜãâêÈ ê,Òã,,ã âê,ã (,ÀÚÒÜÛÒ (9)) ßãÚÜã äÒÜÒÇÒ~È, äãâÝãÞÈÝë , ê,Òãß Alm-Prp âê,ã i = 1 (Perchuk, 1991). × â~Òêi ÛâäãÞÈÑã,ÞÛâÈ äãâÞÒÜÛÒ ÝâäÒÛßÒÜêÞÈÜÀÒ ÜÜÀÒ äã ÛééëÑÛÛ Mg Û Fe , ,,ÜêÒ (Ganguly et al., 1998): Mg (D0 = 4.66 ç 10-9 ß2/âÒÝ Û Ea [ÝáÚ/ßãÞÈ] = = 254 + 0.53 ç P [ÝÇ]) Û Fe (D0 = 3.5 ç 10-9 ß2/âÒÝ Û Ea [ÝáÚ/ßãÞÈ] = 274 + 0.56 ç P [ÝÇ]). ñ,ÛâÛßãâêÈ t ' ãê ÞÛêÒÞÈÜãâêÛ ,âÒ,,ã äã^Òââ ãiÞÚÒÜÛfl (ÒÝãßäÒââÛÛ) äÛ éÛÝâÛã,ÜÜãØ ,ÒÞÛ~ÛÜÒ âêÛÜ,,Ò (2h = 94 ßÝß) ÛßÒÒê ÞÛÜÒØÜÀØ iÝêÒ (Ûâ. 9). û ë~Òêãß ÛÑ,ÒâêÜãØ âêÒäÒÜÛ ,,ãßã,,ÒÜÛÑ^ÛÛ âêÛÜ,,Ò (t ' = 0.03, Ûâ. 8), ëâêÜ,ÞÛ,Òß, ~êã äÒÛã ãiÞÚÒÜÛfl Û ÒÝãßäÒââÛÛ â 730Àû Û 18 ÝÇ (äÛÝ ßÒêßãéÛÑß) ã ~ 500Àû Û 6 ÝÇ (Ò,,ÒââÛ,ÜÀØ êä) âããê,Òêâê,ëÒê 1.4 ßÞÜ. ÞÒê. øãÞ,,fl, ~êã ãiÞÚÒÜÛÒ Ü 220Àû Û äãÒß äãã Ü 45 Ýß (13 ÝÇ) äãÛâiãÛÞÛ ,ÜãßÒÜã, äãÞë~Òß, ~êã âÒÜÛÒ âÝããâêÛ
øæýúùóùÙð? êãß 10 < 2 2002

êÛi äã^Òââã, âãâê,ÞflÞÛ 160Àû/ßÞÜ. ÞÒê Û 3 âß/,,ã âããê,Òêâê,ÒÜÜã. × âÛÞë âÞãÚÜãØ Ñ,ÛâÛßãâêÛ ÝãééÛ^ÛÒÜê ÛééëÑÛÛ ãê êÒßäÒêëÀ ,ÝÞ ÑÞÛ~ÜÀi êäã, êÒßÞÈÜãØ ÛâêãÛÛ , ÑÜ~ÒÜÛÒ äÒÒßÒÜÜãØ t ' ÜÒãÛÜÝã,. × ~âêÜãâêÛ, Ñ,ÛâÛßãâêÈ äÒÒßÒÜÜãØ t ' ãê êÒÝëÒ,,ã ÑÜ~ÒÜÛfl ,ÒßÒÜÛ , iãÒ Ò,,ÒââÛ,ÜãØ ,ãÞ^ÛÛ äããÞÚÛêÒÞÈÜãâêÈ 1.4 ßÞÜ. ÞÒê äãÝÑÀ,Òê (Ûâ. 9Ç, êÇÞ. 6), ~êã , ÜÛÑÝãêÒßäÒêëÜãØ ãÇÞâêÛ (äÛ T < ~ 600Àû) äÒÒßÒÜÜfl äÝêÛ~ÒâÝÛ ÜÒ ßÒÜflÒêâfl, ëÝÑÀ,fl Ü êã, ~êã ßââãäÒÒÜãâ âêÜã,Ûêâfl äÒÜÒÇÒÚÛßã ßÞÀß. ûÞÒã,êÒÞÈÜã, ëâêÜã,ÞÒÜÜÀÒ ÜÒÒ âÒÜÛÒ âÝããâêÛ ãiÞÚÒÜÛfl Û äãÒß ãêÜãâflêâfl ÜÒ Ýã ,âÒßë Ò,,ÒââÛ,Üãßë êäë ßÒêßãéÛÑß, ÞÛ?È Ý Ò,,ã ,ÀâãÝãêÒßäÒêëÜãØ ~âêÛ (730 600Àû), äããÞÚÛêÒÞÈÜãâêÈ ÝãêããØ âãâê,ÞflÞ ãÝãÞã 0.8 ßÞÜ. ÞÒê (Ûâ. 9Ç, êÇÞ. 6). ðûýù?÷ðôð ù?ðÕùô õæýùáÔ ôãééÛ^ÛÒÜê ÛééëÑÛÛ. ù ,ÞÛflÜÛÛ ÝãééÛ^ÛÒÜê ÛééëÑÛÛ Ü äßÒê t ' ßãÚÜã âëÛêÈ äã Ûâ. 9, ,,Ò äÛ,ãflêâfl â~ÒêÀ t ' Þfl ,âÒi ÛÑ,ÒâêÜÀi Ü âÒ,,ãÜfl?ÜÛØ ÒêÈ ÝãééÛ^ÛÒÜêã, ,ÑÛßãÛééëÑÛÛ Fe-Mg , ,,ÜêÒ. ôÝ âÞÒëÒê ÛÑ Û,,ßßÀ, ÞÛÜÛfl, ãê,Ò~fl ÜÜÀß (Ganguly et al., 1998), äãÝÑÀ,Òê ÜÛÇãÞÈ?ë äããÞÚÛêÒÞÈÜãâêÈ , ßÛÜÛßÞÈÜë âÝããâêÈ äã^Òââ. ûããê,Òêâê,ÒÜÜã, ë,,ÛÒ ÞÛêÒêëÜÀÒ Ûâêã~ÜÛÝÛ äãÝÑÀ,ê ÇãÞÒÒ âÚêÀÒ âãÝÛ Û ÇãÞÒÒ ,ÀâãÝë âÝããâêÈ ßÒêßãéÛÑß. ýÒßäÒêë ßÒêßãéÛÑß. áÞfl ãäÒÒÞÒÜÛfl êÒßäÒêëÀ ßÀ ÛâäãÞÈÑã,ÞÛ äãâÞÒÜ ÝÞÛÇã,Ýë Grt-Cpx êÒßãßÒê (Krogh, 200), , ãâÜã,ë ÝãêããØ äãÞãÚÒÜ ÇãÞÈ?ãØ ßââÛ, ÝâäÒÛßÒÜêÞÈÜÀi Û äÛãÜÀi ÜÜÀi äã êãßë ãÇßÒÜÜãßë ,Üã,ÒâÛ. áÞfl ÛÑë~ÒÜÜÀi ÜßÛ ÝÞã,,Ûêã, ÜÜfl ,ÒâÛfl äãÝÑÀ,Òê ÇãÞÒÒ ÜÛÑÝÛÒ ÑÜ~ÒÜÛfl êÒßäÒêëÀ (30Àû Û ÇãÞÒÒ), ~Òß ë,,ÛÒ ÛÑ,ÒâêÜÀÒ ,ÒâÛÛ ÜÜã,,ã êÒßãßÒê (Ellis, Green, 1974; Powell, 1985; Krogh, 1988), â äãßãÈ ÝãêãÀi äãÞë~êâfl ÒÒ ÇãÞÒÒ ,ÀâãÝÛÒ âÝããâêÛ Òêã,,Üã,,ã ßÒêßãéÛÑß Û Ýâ,,ëß^ÛÛ ÝÞã,,Ûêã,. ÙÒãßÒêÛfl âêÛÜ,,Ò. ðÑãÇÚÒÜÛÒ , ãêÚÒÜÜÀi ÞÒÝêãÜi (Üä. Ûâ. 2Ç), â äãßãÈ Ýãêãã,,ã âêÛÜ,,ÒÀ ãÇÜëÚÛ,êâfl, fl,ÞflÒêâfl ÞÛ?È ,ëißÒÜÀß ãêÚÒÜÛÒß ÜÒÝãØ äãâêÜ-


130

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ôãÜ^ÒÜê^Ûfl

úââêãflÜÛÒ

ôãÜ^ÒÜê^Ûfl úââêãflÜÛÒ I ÙÜê IÇ II ÙÜê

øã,ÒiÜãâêÈ ?ÞÛé

III

úÛâ. 10. ùâÜã,ÜÀÒ ßãéãÞã,,Û~ÒâÝÛÒ êÛäÀ âêÛÜ,,Òã, (I, II, III) (ãäÛâÜÛÒ , êÒÝâêÒ). ÷ äÛßÒÒ âêÛÜ,,Ò äÒ,ã,,ã êÛä ÒßãÜâêÛëÒêâfl ÝÚëÛØâfl ééÒÝê ë,ÒÞÛ~ÒÜÛfl ÛééëÑÛãÜÜãØ ÑãÜÀ äÛ ÑÜÀi âÒÑi ?ÞÛé (â,ÜÛêÒ I Û IÇ).

âê,ÒÜÜãØ éãßÀ, Ýãêãfl ÜÛÝÒß äãÝ ÜÒ ÛÑë~ÞâÈ. ùÜÝã, Ûâiãfl ÛÑ äÒäãÞ,,ÒßãØ â,flÑÛ êÛi ãÇÑã,ÜÛØ â êÒÛÜßÛ , ,,ÜêÒ, ßãÚÜã ÜßÒêÛêÈ ÜÒâÝãÞÈÝã ãâÜã,ÜÀi äãâêÜâê,ÒÜÜÀi éãß, ãäÒÒÞflÛi ÞÛÜÒØÜë ,,ÒãßÒêÛ âêÛÜ,,Ò Ü äã,ÒiÜãâêÛ ?ÞÛé. × ãÇÒß ,ÛÒ êã Çëëê äÞâêÛÜ Û ÝÞÛÜ (Ûâ. 10). øÒ,ÀØ âÞë~Ø , êã~ÜãâêÛ ãê,Ò~Òê ëâÞã,Ûflß Ò?ÒßãØ ÜßÛ Ñ~Û. øÛ ã,,ÜÛ~ÒÜÜãß Ñ,ÛêÛÛ ÛééëÑÛãÜÜã,,ã äã^Òââ (Ýã,, ÛééëÑÛfl ÑêãÜëÞ ÞÛ?È äÛ,,ÜÛ~Üë ãÇÞâêÈ âêÛÜ,,Ò) ÜÜfl Ñ~ äÛßÒÜÛß Û Þfl âêÛÜ,,Òã, â ÝÞÛÜã,ÛÜãØ ,,ÒãßÒêÛÒØ. ñßÒêÛß, ãÜÝã, ~êã Ü ÇãÞÒÒ Ñ,ÛêãØ âêÒäÒÜÛ ÛééëÑÛãÜÜã,,ã äÒãÇÑã,ÜÛfl ÜÒãã^ÒÜÝ (,ÛÜê II, Ûâ. 10) Û äÒÒã^ÒÜÝ âêÒäÒÜÛ ,,ãßã,,ÒÜÛÑ^ÛÛ (,ÛÜê III, Ûâ. 10) Çëëê ãëêÈâfl ,âÒ âÛÞÈÜÒÒ. ûÞÒëÒê êÝÚÒ ãÇêÛêÈ ,ÜÛßÜÛÒ Ü äãÇÞÒßë ÛâÝÚÒÜÛfl ßãÜãâêÛ (h) âêÛÜ,,Ò: ÒÞÈÜãÒ ÑÜ~ÒÜÛÒ h ßãÚÒê ÇÀêÈ äãÞë~ÒÜã ÞÛ?È , êãß âÞë~Ò, ÒâÞÛ âÒÑ ?ÞÛé äãiãÛê äÒäÒÜÛÝëÞflÜã Ý äÞãâÝãâêÛ âêÛÜ,,Ò (I, Ûâ. 10). × ãâêÞÈÜÀi ÚÒ âÞë~fli ßãÜãâêÈ âêÛÜ,,Ò Û ßâ?êÇ ÛééëÑÛãÜÜã,,ã ßââãäÒÒÜãâ ÛâÝëââê,ÒÜÜã Ñ,À?êâfl (â,ÜÛêÒ I Û IÇ Ü Ûâ. 10, êÝÚÒ ,ÒÑÝÛ Ý ÜÒßë), ~êã ÇÒÑëâÞã,Üã âÝÑÀ,Òêâfl Ü ë,ÒÞÛ~ÒÜÛÛ ã^ÒÜãÝ ÞÛêÒÞÈÜãâêÛ êÒßÞÈÜãØ ÛâêãÛÛ äããÀ (ë-Ò 5). ÷ ãâÜã,ÜÛÛ ÜÞÛÑ ãâÜã,ÜÀi Ûâêã~ÜÛÝã, ã?ÛÇãÝ ßÒêã äÛiãÛß Ý ÑÝÞ~ÒÜÛ, ~êã äã-

Þë~ÒÜÜÀÒ ÜßÛ ÜÜÀÒ äã äããÞÚÛêÒÞÈÜãâêÛ ßÒêßãéÛÑß ßãÚÜã ÛÜêÒäÒêÛã,êÈ ÝÝ ßÝâÛßÞÈÜÀÒ. ûÞÒã,êÒÞÈÜã, äãÞë~ÒßÀÒ Ü Ûi ãâÜã,Ò âÝããâêÛ ÛÑßÒÜÒÜÛfl ÛÜêÒÜâÛ,ÜÀi äßÒêã, ßÒêßãéÛÑß Çëëê ßÛÜÛßÞÈÜÀßÛ. ÷ã ÚÒ êÛ ßÛÜÛßÞÈÜÀÒ âÝããâêÛ ãÝÑÀ,êâfl Ü äãflãÝ ,À?Ò âÝããâêÒØ, äãÞë~ÒÜÜÀi Þfl ÝãßäÞÒÝâ ÕÒ,,ÒÜ ÔÝâ ÜÒÒ (Boundy et al., 1997). ùÕûüìáæ÷ðæ úæñüó?ýÔýù× ýÒßÞÈÜfl ÛâêãÛfl ÝãßäÞÒÝâ Û ,ãÑâê ßÒêßãéÛÑß × ãêÞÛ~ÛÒ ãê äÛÝ ßÒêßãéÛÑß, ,,Ò ÑÇãâ ÑÜ~ÒÜÛØ ÇâãÞêÜã,,ã ,ãÑâê ãâêêã~Üã ,ÒÞÛÝ, êÛã,ÜÛÒ Ò,,ÒââÛ,Üã,,ã êä äãÝÑÞã iãã?ã ,ãâäãÛÑ,ãÛßÀÒ ã^ÒÜÝÛ (Boundy et al., 1996; Chauvet, Dallmeyer, 1992). áÞfl ä,ÛÞÈÜãØ ÛÜêÒäÒê^ÛÛ êÛi ÜÜÀi êÒÇëÒêâfl ã^ÒÜÛêÈ êÒßäÒêëÀ ÑÝÀêÛfl âããê,Òêâê,ëÛi ÛÑãêãäÜÀi âÛâêÒß â ÛâäãÞÈÑã,ÜÛÒß éãßÞÛÑß áãâãÜ Û ÜÒÑ,ÛâÛßÀi ÜÜÀi äã âÝããâêflß ãiÞÚÒÜÛfl, äãÞë~ÒÜÜÀi â äãßãÈ ßÛÜÒÞÈÜãØ iãÜãßÒêÛÛ (ÙÒâÛßã, Û ., 1998; Perchuk, Philippot, 2000). Ar-Ar ,ãÑâêÀ ã,,ã,Ài ãÇßÜãÝ Û éÒÜ,,Ûêã,, äÛiãflÛÒâfl Ü ÛäÑãÜÀ 452 Á 4 Û 445 Á Á 17 ßÞÜ. ÞÒê âããê,Òêâê,ÒÜÜã (Boundy et al., 1996; Chauvet, Dallmeyer, 1992), ßãÚÜã äÛ,flÑêÈ Ý êÒøæýúùóùÙð? êãß 10 < 2 2002


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131 () 103 102 101

ßÞÈÜãØ ,ãÞ^ÛÛ äããÀ, ãäÒÒÞÛ, êÒßäÒêëÀ ÑÝÀêÛfl ÛÑãêãäÜãØ âÛâêÒßÀ Ar , êÛi ßÛÜÒÞi (Tc). áÞfl êã,,ã ,ãâäãÞÈÑëÒßâfl ,ÀÚÒÜÛÒß (dodson, 1973): E a /R T c = ----------------------------------------------- , 22 ln [ AD 0 R T c / a sE a ] (10)

Tc, ÀC Ar / Hbl 700

,,Ò R - ëÜÛ,ÒâÞÈÜfl ,,Ñã,fl äãâêãflÜÜfl, s - âÝããâêÈ ãiÞÚÒÜÛfl, Ea - ÜÒ,,ÛÛ ÝêÛ,^ÛÛ ÛééëÑÛÛ, a - iÝêÒÛâêÛ~ÒâÝãÒ ââêãflÜÛÒ ÛééëÑÛÛ, A - ,,ÒãßÒêÛ~ÒâÝÛØ éÝêã (Þfl äÞâêÛÜÀ - A = 8.7 Û a = 1/2 ÒÒ ßãÜãâêÛ; Þfl ^ÛÞÛÜ - A = = 27 Û a = Ûëâë; Þfl âéÒÀ - A = 55 Û a = Ûëâë). ×ãâäãÞÈÑã,,?ÛâÈ ÛééëÑÛãÜÜÀßÛ äßÒêßÛ Ea Û D0 Þfl Ar , ßéÛÇãÞÒ (Harrison, 1981) Û éÒÜ,,ÛêÒ (Kirschner et al., 1996) Û äãâê,Û, Ûi , ë,ÜÒÜÛÒ (8), äãÞë~Òß, ~êã ãÇ ßÛÜÒÞ , äÛãÜÀi ëâÞã,Ûfli, äÛ ÑÜ~ÛêÒÞÈÜãØ ,Û^ÛÛ ÑßÒ ÑÒÒÜ Û âÝããâêÒØ ãiÞÚÒÜÛfl, Tc ßã,,ëê ÛßÒêÈ ÛäÑãÜÀ ÑÜ~ÒÜÛØ T , ÜÒâÝãÞÈÝã âãêÒÜ Àû (Ûâ. 11, 11Ç). ×ãâäãÞÈÑã,,?ÛâÈ êãØ Û,,ßßãØ, ßãÚÜã ã^ÒÜÛêÈ Tc Þfl ßÛÜÒÞã, ÛÑ ÝãßäÞÒÝâ ÕÒ,,ÒÜ ÔÝâ: Þfl âÝããâêÛ ãiÞÚÒÜÛfl 160Àû/ßÞÜ. ÞÒê Û Ûëâ ÑÒÒÜ 0.05-0.40 ßß (Boundy et al., 1992, 1996) ÜiãÛß, ~êã âÒÜflfl êÒßäÒêë ÑÝÀêÛfl Ar-âÛâêÒßÀ , ßéÛÇãÞÒ âãâê,ÞflÞ 510-590Àû, , éÒÜ,,ÛêÒ - ãÝãÞã 440-520Àû. ýÝÛß ãÇÑãß, Tc ßéÛÇãÞ äãäÒê , êÒßäÒêëÜÀØ ÛÜêÒ,Þ Ò,,ÒââÛ,Üã,,ã êä ßÒêßãéÛÑß (730 500Àû) Û ãÝÑÀ,Òêâfl ,äÞãêÜë äÛÇÞÛÚÒÜÜãØ Ý êÒßäÒêëÜãßë ÛÜêÒ,Þë, Ü Ýãêããß ééÒÝêÛ,ÜÀ äãÝÑÜÛfl ßÛÜÒÞÈÜã,,ã iãÜãßÒê (730 600Àû). æâÞÛ ëâêÜã,ÞÒÜÜÀÒ âÝããâêÛ ãiÞÚÒÜÛfl (160Àû/ßÞÜ. ÞÒê) äãÒÚÛ,ÞÛâÈ Ü äãêflÚÒÜÛÛ ,âÒ,,ã Ò,,ÒââÛ,Üã,,ã êä ßÒêßãéÛÑß, âãÑÒêâfl âëÒâê,ÒÜÜãÒ ã,,ÜÛ~ÒÜÛÒ Ü ,ãÑâê ÝÞã,,Ûêã,ã,,ã ßÒêßãéÛÑß. øãâÞÒÜÛØ ÜÒ ßãÚÒê ãêÞÛ~êÈâfl ãê Ar-Ar ,ãÑâê ßéÛÇãÞ ÇãÞÒÒ ~Òß Ü 0.8 ßÞÜ. ÞÒê, ê.Ò. â ë~Òêãß ÜÒãäÒÒÞÒÜÜãâêÒØ ãÞÚÒÜ ÇÀêÈ ,ÒÜ Ar-Ar ,ãÑâêë ßéÛÇãÞ (452 Á 4 ßÞÜ. ÞÒê). × êãß âÞë~Ò U-Pb ,ãÑâê 450 Á 10 ßÞÜ. ÞÒê, ëâêÜã,ÞÒÜÜÀØ äã ^ÛÝãÜë â äãßãÈ SHRIMP (Boundy et al., 1997), äÒâê,ÞflÒêâfl ÜÛÇãÞÒÒ ä,ÛÞÈÜÀß. ù ßÒiÜÛÑßÒ Ýâ,,ëß^ÛÛ õÜã,,ÛÒ ÛââÞÒã,êÒÞÛ äãÞ,,ê, ~êã äãêãÞÛêãß ÝãßäÞÒÝâ ÕÒ,,ÒÜ ÔÝâ âÞëÚÛÞÛ äããÀ ãâÜã,ÜÛfl ãÝÒßÇÛØâÝãØ ÝãÀ - ,,ÜëÞÛêÀ Û ßÒêÜãêãÑÛêÀ (Jamtveit et al., 1990). øÛßÒ~êÒÞÈÜã, ~êã ÜÛ , ãÜãØ ÛÑ ÛÑ,ÒâêÜÀi Üß Çãê ÜÒ âããÇÒêâfl ã ÜÜÒØ Ò,,ÒââÛ,ÜãØ äÒÒÝÛâêÞÞÛÑ^ÛÛ ,,ÜëÞÛêã, ÝãßäÞÒÝâ ÕÒ,,ÒÜ ÔÝâ, Ýãêãfl ëÝÑÀ,Þ ÇÀ Ü äãÒß ÝãßäÞÒÝâ , ãÝÞÒãÜâÝãÒ ,Òßfl, ê.Ò. ã Ü~Þ ÝÞã,,ÛêÛÑ^ÛÛ.
øæýúùóùÙð? êãß 10 < 2 2002

600 max min 500

100

400 min max Ar / Mu 700 (Ç) 103 102 600 101 max 500 min 400 min max 1 2 3 4 úÛëâ, ßß 100

úÛâ. 11. úâ~ÒêÜÀÒ Û,,ßßÀ Ñ,ÛâÛßãâêÛ êÒßäÒêëÀ ÑÝÀêÛfl Ar-âÛâêÒßÀ , ßéÛÇãÞÒ () Û éÒÜ,,ÛêÒ (Ç) ÛÑ ÝÞã,,Ûêã, ÝãßäÞÒÝâ ÕÒ,,ÒÜ ÔÝâ ãê âÝããâêÛ ãiÞÚÒÜÛfl (^ÛéÀ ,ãÑÞÒ ÝÛ,Ài) Û ÑßÒ ÑÒÜ. ýã~Ò~ÜÀÒ ÞÛÜÛÛ - ßÛÜÛßÞÈÜÀØ (min) Û ßÝâÛßÞÈÜÀØ (max) ÑßÒ ÝÛâêÞÞã, ÛÑ ÝÞã,,Ûêã,, ÝãêãÀß âããê,Òêâê,ëê Tc äÛ âÝããâêÛ ãiÞÚÒÜÛfl 180Àû/ßÞÜ. ÞÒê (ãäÛâÜÛÒ , êÒÝâêÒ).

ûÞÒã,êÒÞÈÜã, ßãÚÜã äÒäãÞãÚÛêÈ, ~êã , äãië ÝÞÒãÜâÝãØ ÝãÞÞÛÑÛÛ ,,ÜëÞÛêÀ ÝãßäÞÒÝâ ÕÒ,,ÒÜ ÔÝâ ÜiãÛÞÛâÈ , ãâÜã,ÜÛÛ ÝãÀ äã,,ëÚÒØâfl äÞÛêÀ Ü ,,ÞëÇÛÜi >30 Ýß (9 ÝÇ). ?êã, ÝÝ ÇëÒê äãÝÑÜã ÜÛÚÒ, ÛßÒÒê ,ÚÜãÒ ÑÜ~ÒÜÛÒ Þfl äãÜÛßÜÛfl ßÒiÜÛÑß ,À,ã ÝÞã,,Ûêã, ÛÑ ,,ÞëÇÛÜ, ÑÜ~ÛêÒÞÈÜã äÒ,À?Ûi âÒÜ ßãÜãâêÈ ÑÒßÜãØ ÝãÀ.


132

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æâÞÛ âëÛêÈ äã ÛÜßÛÝÒ ßÒêßãéÛÑß ÝãßäÞÒÝâ ÕÒ,,ÒÜ ÔÝâ, âããê,Òêâê,ëÛÒ âÝããâêÛ Ýâ,,ëß^ÛÛ (äÒ,ÀÒ âß/,,ã Û ÇãÞÒÒ) ßã,,ëê ÇÀêÈ ÒÞÛÑã,ÜÀ äÛ ,ëi ãâÜã,ÜÀi ,,ÒãÛÜßÛ~ÒâÝÛi äã^Òââi. øÒ,ÀØ äÒäãÞ,,Òê ,flÑÝãÒ êÒ~ÒÜÛÒ (äflßãÒ Û ,ãÑ,êÜãÒ) äÞâêÛ~Üã,,ã ,ÒÒâê, (ßÒêãâÝÛ, Çã,,êÀÒ âÞÛâêÀßÛ ßÛÜÒÞßÛ, âÒäÒÜêÛÜÛêÀ) , ÝÝÒ^ÛãÜÜãØ äÛÑßÒ Û ÞÒÒ - , âëÇëÝ^ÛãÜÜãß ÝÜÞÒ, ÛÜÛ^ÛÛã,ÜÜãÒ ,ÛÚÒÜÛÒß äã,,ëÚÒØâfl äÞÛêÀ (áãÇÒ^ã,, ôÛfl?ÝÛÜ, 1994; Hsu, 1971; Cloos, 1982; Cloos, Shreve, 1988; Beaumont et al., 1999; Gerya et al., 2001). úâ~ÒêÀ äãÝÑÀ,ê (Cloos, 1982), ~êã ÝÞã,,Ûêã,ÀÒ êÒÞ, ÜiãflÛÒâfl , ßêÛ^Ò ãâã~ÜÀi äãã, ßã,,ëê ÇÀêÈ ,ÀÜÒâÒÜÀ Ý äã,ÒiÜãâêÛ ÞÛ?È êã,,, Ýã,, Ûi ÑßÒ ÜÒ äÒ,À?Òê äÒ,ÀÒ ÒâflêÝÛ ßÒêã,. ÕãÞÒÒ ÝëäÜÀÒ êÒÞ êflÚÒÞã,,ã ÝÞã,,Ûê ÇÒÑ,ãÑ,êÜã ë,ÞÒÝêâfl Ü ,,ÞëÇÛÜë ÜÛâiãflÛß äãêãÝãß ,ÒÒâê,. ù~Ò,ÛÜã, ~êã äãÒß ,,Û,,ÜêâÝã,,ã ÇÞãÝ ÝãßäÞÒÝâ ÕÒ,,ÒÜ ÔÝâ êëÜã ãÇflâÜÛêÈ , ßÝi ÜÜãØ ßãÒÞÛ. ôãßÒ êã,,ã, ÛâiãÜfl äãÑÛ^Ûfl êã,,ã ÝãßäÞÒÝâ - , ãâÜã,ÜÛÛ âëÇë^ÛëÒØ äÞÛêÀ - äÞãiã âã,,ÞâëÒêâfl â êÒß, ~êã äÒäãÞ,,ÒßÀØ ÝãÞÞÛÑÛãÜÜãØ ßãÒÞÈ Ñi,ê ÝÞã,,Ûêã, , ÝÝÒ^ÛãÜÜë äÛÑßë ãÞÚÒÜ äãÛâiãÛêÈ â äã,ÒiÜãâêÛ ,À?ÒÞÒÚÒØ ßÜêÛÛ Û/ÛÞÛ ÛÑ âßãØ âëÇë^ÛëÒØ äÞÛêÀ. ÕÀâêãÒ ÛÑßÒÜÒÜÛÒ êÒßäÒêëÀ Û ,ÞÒÜÛfl äÒâÝÑÀ,Òêâfl êÝÚÒ ßãÒÞflßÛ ,âäÞÀ,ÜÛfl ÝëäÜÀi ÇÞãÝã, ãêÜãâÛêÒÞÈÜã ÞÒ,,ÝÛi ÝãÜêÛÜÒÜêÞÈÜÀi äãã (England, Holland, 1979; Perchuk et al., 1992; Chemenda, 1993; Ernst et al., 1997; Ernst, 1999). × äãâÞÒÜÛi êÒi Çãêi ßãÚÜã ÜØêÛ ÜÛÇãÞÒÒ äÛÒßÞÒßÀØ Þfl Üã,ÒÚâÝÛi ÝÞÒãÜÛ â^ÒÜÛØ, âã,,ÞâÜã Ýãêããßë ÞÒ,,ÝÛÒ âÛÞÛ~ÒâÝÛÒ äããÀ (ÝãßäÞÒÝâ ÕÒ,,ÒÜ ÔÝâ?), ãêÝãÞã,?ÛÒâfl ãê äÒÒã,ãØ ~âêÛ âëÇë^ÛëÒØ äÞÛêÀ (ñäÜÀØ ÙÜÒØâã,ÀØ ØãÜ?), ,À,ãflêâfl Ü äã,ÒiÜãâêÈ ,ãÞÈ ÝãÜ,Ò,,ÒÜêÜãØ ,,ÜÛ^À ÝãÜêÛÜÒÜêÞÈÜãØ äÞÛêÀ Û ,Ûâfl~Ò,,ã ßÜêÛØÜã,,ã ÝÀÞ. ×ÚÜÀß ,âäãßã,,êÒÞÈÜÀß éÝêããß ÇÀâêã,,ã äãÒß ÝÞã,,Ûêã, ßãÚÒê âÞëÚÛêÈ âÒäÒÜêÛÜÛÑ^Ûfl äãã?,À ,Ûâfl~Ò,,ã ÝÀÞ, äÛ,ãflfl Ý ÑÜ~ÛêÒÞÈÜãßë âÜÛÚÒÜÛ êÒÜÛfl ßÒÚë ÝãÜêÝêÛëÛßÛ Ýãã,ÀßÛ Û ßÜêÛØÜÀßÛ äããßÛ (Guillot et al., 1999). ûëÒâê,ÒÜÜãÒ ,ÞÛflÜÛÒ Ü âÝããâêÈ Ýâ,,ëß^ÛÛ ßã,,Þã ãÝÑÀ,êÈ êÝÚÒ ,ÀÚÛßÜÛÒ äÞâêÛÜÀ âiãflÛßÛâfl äÞÛêßÛ (áãÇÒ^ã,, 2000). ×ÝÞ ëÝÑÜÜÀi ééÒÝêã, , äã^Òââ Ýâ,,ëß^ÛÛ ,ÀâãÝãÇÜÀi äãã ã âÛi äã ÝãÞÛ~Òâê,ÒÜÜã ÜÒ ã^ÒÜÒÜ. ù ßÒêßãéÛ~ÒâÝãß éÞÛÒ ùäÒÒÞflfl ãÞÈ ,ãÜã,,ã éÞÛ äÛ ,ÀâãÝãÇÜãß ßÛÜÒÞããÇÑã,ÜÛÛ, ,äÒ,ÀÒ äãÝÑÜÜfl ÷.Ù. üã,ÝÛÜãØ Ü äÛßÒÒ ÝãßäÞÒÝâ õëÜÝÒë, øãÞflÜÀØ üÞ (üã,ÝÛÜ, 1971), âê-

Þ ãÇÒäÛÑÜÜÜãØ ßÜã,,ã ÞÒê âäëâêfl äÒÚÒ ,âÒ,,ã ÇÞ,,ãfl ÇÞÛâêêÒÞÈÜÀß ÛââÞÒã,ÜÛflß ÝãßäÞÒÝâ ÕÒ,,ÒÜ ÔÝâ, äã,ÒÒÜÜÀß Üã,ÒÚâÝÛßÛ ,,ÒãÞã,,ßÛ (Üä., Austrheim, Griffin, 1985; Jamtveti et al., 1990: Andersen et al., 1991a, b, Andersen et al., 1993; Austrheim, Mork, 1988). ×ãäãâß éÞÛÜã,,ã ÒÚÛß ßÒêßãéÛÑß Ü âêÜÛ^i ëÝÑÜÜÀi äëÇÞÛÝ^ÛØ ëÒÞÒÜã ÜÒßÞã ,ÜÛßÜÛfl. × ÒÑëÞÈêêÒ ÛÑë~ÒÜÛfl éÞÛÜÀi ,ÝÞ~ÒÜÛØ (Andersen et al., 1991b) , âÛÜêÒÝêãÜÛ~ÒâÝÛi Pl-Phn-Otz-Czo-Cal ÚÛÞi ÛÑ ^ÒÜêÞÈÜãØ ~âêÛ ÑãÜÀ äÞâêÛ~ÒâÝÛi Òéãß^ÛØ Ü ãâêã,Ò ÿãÞâÜãë (ÝãßäÞÒÝâ ÕÒ,,ÒÜ ÔÝâ) ÇÀÞÛ ãÇÜëÚÒÜÀ äÒ,Û~ÜÀÒ ,ãÜã-âãÞÒ,ÀÒ (31-31% NaCl) Û ë,,ÞÒÝÛâÞãêÜÀÒ â ÜÒÇãÞÈ?ãØ äÛßÒâÈ Ñãê (> 5% N2) ,ÝÞ~ÒÜÛfl. ð iãêfl P-V-T â,ãØâê, ,ÝÞ~ÒÜÛØ, ,ÝÞ~ÒÜÛÒ Ûi ÒÝÒäÛê^ÛÛ, ÜÒ ãê,Ò~ê P-T äßÒêß ÝÞã,,Ûêã,ã,,ã êä ßÒêßãéÛÑß, âãâê, ,ÝÞ~ÒÜÛØ, ÝÝ â~Ûêê ,êãÀ, ,äãÞÜÒ ÒÝ,êÜã iÝêÒÛÑëÒê âãâê, éÞÛÜãØ éÑÀ Û ÒÒ ÑÒÞÒÜÛÒ, ,,Ûë ,ÀâãÝãêÒßäÒêëÜãØ ÜÒâßÒâÛßãâêÛ , äÛâëêâê,ÛÛ NaCl (?ßëÞã,Û~, 1988), Ü ,ãÜë Û ë,,ÞÒÝÛâÞãêÜë ~âêÛ. ýÝãØ âãâê, éÞÛ, äã ßÜÒÜÛ ,êãã,, ÛßÒÒê ßÞã ãÇÒ,,ã â ÜÜÀßÛ ãÇ ÇâãÞêÜãß ãßÛÜÛã,ÜÛÛ ,ãÀ ,ã éÞÛÜãØ éÑÒ ÝÞã,,Ûêã,ã,,ã êä (Jamtveit et al., 1990). ýÝÛß ãÇÑãß, Ü? ,À,ã ã êãß, ~êã ÝÞã,,ÛêÛÑ^Ûfl ,,ÜëÞÛêã, äãêÒÝÞ äÛ ëßÒÒÜÜãß âãÒÚÜÛÛ ,ãÀ ,ã éÞÛÜãØ âßÒâÛ ( a H2 O < 0.4), äãê,ÒÚÒêâfl ÜÒÑ,ÛâÛßÀßÛ ÜÜÀßÛ äã éÞÛÜÀß ,ÝÞ~ÒÜÛflß.

×?×ùá? 1) ðÑë~ÒÜÛÒß ßÛÜÒÞÈÜÀi ,Üã,ÒâÛØ , ÝÞã,,ÛêÒ ÛÑ ÝãßäÞÒÝâ ÕÒ,,ÒÜ ÔÝâ ëâêÜã,ÞÒÜã, ~êã P-T äßÒêÀ ÝÞã,,Ûêã,ã,,ã êä ßÒêßãéÛÑß âãâê,ÞflÞÛ ãÝãÞã 730Àû Û 19 ÝÇ, ÝêÛ,ÜãâêÈ ,ãÀ ,ã éÞÛÒ (H2O-NaCl-N2-CO2) ÜÒ äÒ,À?Þ 0.4. ýÒßäÒêë Û ,ÞÒÜÛÒ Ü Ò,,ÒââÛ,Üãß êäÒ ßÒêßãéÛÑß ã^ÒÜÛ,êâfl ,ÜÀßÛ ãÝãÞã 500Àû Û 6 ÝÇ âããê,Òêâê,ÒÜÜã. 2) õãÒÞÛã,ÜÛÒ ,ÑÛßãÛééëÑÛÛ Fe-Mg Ü ,,ÜÛ^Ò âêÛÜ,,Ò Û ,ßÒÒ,,ã ,,Üê , ëâÞã,Ûfli Ò,,ÒââÛ,ÜãØ ,ãÞ^ÛÛ äãÑ,ãÞÛÞã ëâêÜã,ÛêÈ, ~êã ãiÞÚÒÜÛÒ (730 600Àû) Û ÒÝãßäÒââÛÛ (19 12 ÝÇ) ÝÞã,,Ûêã, , iãÒ Ò,,ÒââÛ,Üã,,ã êä ßÒêßãéÛÑß äããÞÚÞÛâÈ ãÝãÞã 0.8 ßÞÜ. ÞÒê, ~êã âããê,Òêâê,ëÒê âÝããâêflß ãiÞÚÒÜÛfl Û äãÒß äãã ãÝãÞã 160Àû/ßÞÜ. ÞÒê Û 3 âß/,,ã. 3) úâ~ÒêÜÀÒ êÒßäÒêëÀ ÑÝÀêÛfl ÛÑãêãäÜãØ âÛâêÒßÀ ,,ãÜ , ßéÛÇãÞÒ ÛÑ ÝÞã,,Ûê ÝãßäÞÒÝâ ÕÒ,,ÒÜ ÔÝâ (510-590Àû) Üiãflêâfl , êÒßäÒêëÜãß ÛäÑãÜÒ Ò,,ÒââÛ,Üã,,ã êä. × âÛÞë ÜÒÇãÞÈ?ãØ äããÞÚÛêÒÞÈÜãâêÛ äãâÞÒÜÒ,,ã (ãiÞÚÒÜÛÒ ã 600Àû äããÞÚÞãâÈ ßÒÜÒÒ 1 ßÞÜ.
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133

ÞÒê) ßãÚÜã äãÞ,,êÈ, ~êã Ar-Ar ,ãÑâê ßéÛÇãÞ (448-45 ßÞÜ. ÞÒê, Boundy et al., 1996) éÝêÛ~ÒâÝÛ ãê,Ò~Òê äÛÝë ÝÞã,,Ûêã,ã,,ã ßÒêßãéÛÑß. ÕóÔÙùáÔú÷ùûýð. Ô,êãÀ äÛÑÜêÒÞÈÜÀ õ. ?ßÇÒ Û ÿ. ÔâêiØßë Ñ ãÇÑ^À ÝÞã,,Ûêã,, ÞÇÒÑÜã äÒãâê,ÞÒÜÜÀÒ Þfl ÛââÞÒã,ÜÛØ, ó.ó. øÒ~ëÝë (õÙü), û.ø. ôãÛÝã,âÝãßë, ×.?. ÙÒâÛßãßë Û õÞÈÝã,âÝãßë ×.ð. (ðÙæõ úÔ÷) Ñ ^ÒÜÜÀÒ ÑßÒ~ÜÛfl äÛ äã,,ãêã,ÝÒ ëÝãäÛâÛ, Ô.×. ÙÛÜÛâë (ðÙæõ úÔ÷) - Ñ ãÇâëÚÒÜÛÒ ÒÑëÞÈêêã,, þ. ÕÞÜ - Ñ äãßãÈ äÛ ÛââÞÒã,ÜÛfli Ü âÝÜÛëÒß ÞÒÝêãÜÜãß ßÛÝãâÝãäÒ. úÇãê ,ÀäãÞÜÒÜ äÛ éÛÜÜâã,ãØ äãÒÚÝÒ äãÒÝê úþþð < 01-05-64585 (ëÝ. Ô.ó. øÒ~ëÝ), äãÒÝê úþþð < 00-15-98519 "×ÒëÛÒ Üë~ÜÀÒ ?ÝãÞÀ úãââÛÛ" (ëÝ. ó.ó. øÒ~ëÝ), êÝÚÒ äãÒÝê < 7768 äã âãêëÜÛ~Òâê,ë ßÒÚë úÔ÷ (úãââÛfl) Û CNRS (þÜ^Ûfl).

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ûøðûùô óðýæúÔýüú?
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