: , 630090, / 187
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2006 , 4

1.

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: 425-427



2.
-PPC C C P CPXCX CX C C- (Cp xc)

.. p, .. c, .. , .. p, .. c*
c p C P, 630090, cpc, pc. , 3, Pcc
* p, 475010, c ., , c. , . p, 1, xc
: C, , -c c, , c, ccp, , c p, c p.
: 428-444
: , CPP P

>>
pc c -ppc c c c- (C), cp p cpxcx cx (UHP-HP). C cp c , cp p, c p c -pc cp cc p pp c UHP-HP p. -p p p c p pc c (150-200 ), p UHP-HP p ( 535 ), c p. c c (535-528 ) cpp c pc, UHP-HP p, cp ( 1 ) c cpc 1 / c 90 . c 5 c cpc 0,6-1 c/ UHP-HP p c p c p p ( 60-30 ). , p 528-500 UHP-HP p c px cpp p cc c c p. p 500-480 UHP-HP p cc px p. pcc p c C, p p pp px p c -ppc c , p p-ccx ccx c, c . p p pc c, p pp pc Cc cp . pc-ppc pcc p-cp (480-460 ) p C p p Cc cp pp p- p, p p c pp p pc c c pc 460-440 .


3.
PPC PC P C C- : CPP 40Ar-39Ar

. p, .. c*, .. *, . p**, .. -c**, . **
c pc, ,
* c p C P, 630090, cpc, pc. , 3, Pcc
** ETH Zurich, Izotope Geology and Mineral Resources Clausiusstrasse 25,
NW C65, CH-8092 Zurich, Switzerland
: c pc , pc c, pc, , p , , xp.
: 445-454
: , CPP P

>>
p c pp p c c c- c, pc pp -pc c , c c (c) pcx pc, pcx p--c-x c, cpx px p-x pcx px pc c . P c c ppc p-p-c p-c c. Cc c p - c. p 40Ar/39Ar p c p ccx c pcx xp pc ppc (480-485 ) pc x pp. cc c cp xpc p ppc c pp p- cpp c c- ppc c p cpxcx cx (UHP-HP p) cx cp-px p.


4.
P C CC C CC CP PP PCX P CX PP PX CX C

.. , .. c*, . **, .. *
c C P, 630090, cpc, pc. , 3, Pcc
* c p C P, 630090, cpc, pc. , 3, Pcc
** pc X, x, 060-0810, Cp,
: , ccp, , , c cc.
: 455-461
: , CPP P

>>
pc pcx p cpp c c cc Cc p, pcx px p , pc- Cc p cc ccp, c x pp c px cp-px p ( O. evae, B. navis - lower Par. originalis). pó p xpp c pcp, c c pp p c cc Cc p p.


5.
C CX CP XC

.. p, .. Cp*
xcc-pc xc pc, 480091, -, . , 59, xc
* c ppx pcpc, 480012, -, . p, 168, xc
: cp , p, p, , , ccp, , c p.
: 462-474
: , CPP P

>>
c pp cppx, pcx, cx xpcx x pc c pc-cppc cp cc Cp xc. , ppc p pcx pcp Cc p pc Cc cpx . pcp c c c c p c cp , p pp p- cpp, c p cx cpxcx pc c c cp .


6.
PC C (Cp xc): CPP , PC, X C

.. p, .. c, . P*, .. C
c p C P,
630090, cpc, pc. , 3, Pcc
*Research School of Earth Sciences, Australian National University, Canberra, ACT 0200, Australia
: , c px , p-pc, , x, xp, c p.
: 475-484
: XP, X, P P

>>
pc c cc cp cx c, x c , c px , pcc c p p-pc, ppx p. c c pc cp p pp c p c p, c p p c p. Cc p p c c c p cx cpxcx . xc cc cpp pc, pc cppc cx c pc p c c pp Cc cp . px p pc p 485 6 p p U-Th-Pb SHRIMP. pc pcx pc px 495-485 . p xpp p pcp c , c c pc c c c p px pc c pp .


7.
CCX PCC PCPC P ( pp p c cc)

.C. , .C. C, .. , C.. cc, .. , .. c*
c p C P, 630090, cpc, pc. , 3, Pcc
* p, 475010, c ., , c. ,
. p, 1, xc
: p cpxcx , , c-c p, Cp xc.
: 485-498
: XP, X, P P

>>
c c-c p cpc cp pc cp x c c. c pcp p, p 45- p p , c pc p pc cc xcx cc p c pc cc, px pp. p , ccc p px p c p p cc, p-pc p c p cc, p x . p x p cc C-C C-C, c p p p p -pc c p p.
cp ccx cc , c c-c p c cc p. x c c p c , c , p cc c p p-x c c. , cp p px cx pc , c c, c cx pc, cpx px . p c x c pc p, pccx cp cpx c, pc x p.


8.
P CPP X CX

.. pc, . cc*, .. , ..
c p C P, 630090, cpc, pc. , 3, Pcc
* p, pc p p,
B-3080, pp,
: c, , p cpp, , xc.
: 499-512
: XP, X, P P

>>
pcpc pc (UHPM) c cc (Cp xc) cp c c c p cpp p ccx px cpp c c pc: + c-p pc = -p c + CO2; p + c-p pc = + CO2; c-p pc = + p + p. cx cpx px, x c pc c p UHP cx, cp p p . p ccc c ppc , p p c-px pc UHPM cx. c pcc p c p ccp, p c c cc pc c p. UHPM cx p pc p c c UHPM p c cc.


9.
PC P CX P: U-Pb SHRIMP P P C CC

. Xp, . P, .. pc*, .C. *
Research School of Earth Sciences, Australian National University, Canberra, ACT 0200, Australia
* c p C P, 630090, cpc, pc. , 3, Pcc
: , p, U-Pb p, SHRIMP, .
: 513-520
: XP, X, P P

>>
c U-Pb p x () p in situ c c cc p c c pp (SHRIMP) c , p pc pcx c cx, cpx p c cc. p cx cc p ccc px p, pc p ~530 . x px c px , c pc p, px p, ppc pcx c cc . p cc , p ppc p, cx ppp p . pc pppx p c p px c pc p. cc cpx cpcx c - 1,8 c/ ( -p p p) cx cpcx c > 40 C/ .


10.
CC CC PC P PCPCX C-CX PCX P C CC ( Cp xc )

.. C, .-. p*, P.. p*
c p C P, 630090, cpc, pc. , 3, Pcc
* c , p , Ppc pc, x, D-44780, p
: p cpxcx , c-c p, , Mg-Ca-p.
: 521-531
: XP, X, P P

>>
p cc cp p px px (cx) c-cx p c pc cc cp px (Cp xc) c p pp cc p-pccpx p, ccpx c , Mg-, , c, cp 1,5 c.% 2, pcp, Ti-, . p x p pc c pcp. p p c cc cp pc pc c pc . p p cp cc c p Mg# [100Mg/(Mg + Fe)] 70 95 C# [100Ca/(Ca + Mg + Fe + Mn)] 42 85, c p x p. p p c p c C# x. p ccc pcc p p c x cc, p cx ppx cx, cx p p, cpx pc FeO px 1-2 c.% (Mg# = 92-95 C# = 60-66). p cc 5 70 % ccx p cpc c () pp 10-20 % p p p. p, p c p cp x p, cc x c c p. c x p c cc xp cc c Mg# = 70-80 Ca# = 40-55. pc, p pc p p, pc cx, ccx p cpxcx . p c p p, pp p p p , cc c, c pc . p x x cpc cp p. pc c pc p ppcc p, p c c pc p cc c p , p, p P ~ 1,8 ~ 900 .