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7/31/2019 Lesson Min 7 Neso
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(Mg,Fe)2 SiO4
(Mg,Fe)2
SiO4
Mg 2 SiO 4 Fe 2 SiO 4 Mg2 SiO4 Fe2 SiO4
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, .
.
(Mg,Fe)2 SiO4
(Mg,Fe)2
SiO4
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.- (Fe)
.
6 - 7. 3,3 4,4
(Mg,Fe)2 SiO4
(Mg,Fe)2
SiO4
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(, )
(, ) . , , , .
(Mg,Fe)2 SiO4
(Mg,Fe)2
SiO4
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(- )
((-- ))
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( )
( )
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( )
( )
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-
-
- -
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- -
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- -
OlOl
(Ol) (Ol)
(Px-Plag)
(Px-Plag)
Pillow Pillow
(Px-Ol-Plag)
(Px-Ol-Plag)
(Ol-Px) (Ol-Px)
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, , .
(Mg,Fe)2 SiO4
(Mg,Fe)2
SiO4
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.
.
olive-green = .Olivine
(GB),
Olivine (F),
Olivin (D)
(Mg,Fe)2 SiO4
(Mg,Fe)2
SiO4
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M3 2+2
3+(SiO4 )3
M3
2+23+(SiO4
)3
Mg3 Al2 (SiO4 )3
Fe3
Al2
(SiO4
)3 Mn3 Al2 (SiO4 )3
Ca3 Cr2 (SiO4 )3
Ca3
Al2
(SiO4
)3 Ca3 Fe2 (SiO4 )3
Mg3 Al2 (SiO4 )3
Fe3
Al2
(SiO4
)3
Mn3 Al2 (SiO4 )3 Ca3 Cr2 (SiO4 )3
Ca3
Al2
(SiO4
)3
Ca3 Fe2 (SiO4 )3
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12, 24.
.
M3 2+2
3+(SiO4 )3
MM33
2+2+22
3+3+((SiOSiO44
))33
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,
,
.
6 - 7. 3,5
4,3
M3
2+2
3+(SiO4
)3
MM33
2+2+22
3+3+((SiOSiO44
))33
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Mg
3 Al
2 (SiO
4 )3
MgMg
33 AlAl
22 (SiO(SiO
44 ))33
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Fe
3 Al
2 (SiO
4 )3
FeFe
33 AlAl
22 (SiO(SiO
44 ))33
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Mn
3 Al
2 (SiO
4
)3
MnMn
33 AlAl
22 (SiO(SiO
44))
33
, ,,
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Ca
3 Cr
2 (SiO
4
)3
CaCa
33 CrCr
22 (SiO(SiO
44))
33
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Ca
3 Al
2 (SiO
4
)3
CaCa
33 AlAl
22 (SiO(SiO
44))
33
, , ,
, ,, ,, ,,
,,
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Ca
3 Fe
2 (SiO
4 )3
CaCa
33 FeFe
22 (SiO(SiO
44 ))33
, , , ,, ,, ,,
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Mg
3 Al
2 (SiO
4 )3
MgMg
33 AlAl
22 (SiO(SiO
44 ))33
. , Mg.
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Mn
3 Al
2 (SiO
4
)3
MnMn33
AlAl22 (SiO(SiO44))33
. Mn.
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Ca
3 Cr
2 (SiO
4
)3
CaCa33
CrCr22 (SiO(SiO44))33
. .
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Ca3 Al2
(SiO4
)3
Ca3 Fe2 (SiO4 )3 CaCa33
AlAl22
(SiO(SiO44
))33
CaCa33 FeFe22 (SiO(SiO44 ))33
. Skarn.
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()
(())
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(skarn)
((skarnskarn))
skarnskarn
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(skarn)
((skarnskarn))
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. . granatum = .
Garnet (GB), Grenat (F), Granat (D)
M3
2+2
3+(SiO4
)3
MM33
2+2+22
3+3+((SiOSiO44
))33