Transcript
º º
º º
Pb /`U Pb U
U/Pb
.
Cameca
a
b
b a
(
Chl Bt Fsp Grt Cal Amp Pl Ep Ore Ap
º º
a
b
c
e
f
g
C
h
ac b
eg f
h(
g
f
e
D
/ X Y O
Ti /
Ca
b a XY O
(K
/
a /
1. Pre-tectonic phase2. Post-tectonic phases
b / /AX
1. Amesite2. Sudoite3. Daphnite4. Clinochlore
Girt
BDBD
BD
BD
Garnet
Girt
BDBD
BD
BD
Girt
BDBD
BD
BD
Girt
BDBD
BD
BD
Girt
BDBD
BD
BD
Plagioclase
Pl
BD
BD
BD
BD
BD
BD
Pl
BD
BD
BD
BD
BD
BD
Pl
BD
BD
BD
BD
BD
BD
Pl
BD
BD
BD
BD
BD
BD
BD
BD
BD
Pl
BD
BD
BD
BD
BD
BD
Pl
BD
BD
BD
BD
BD
BD
BD
BD
BD
BD
BD
BD
TiOAl O
FeO
CaOO
K O
Total
formula
Ti
Al
Fe
Ca
K
Total
Chlorite
BD
BD
Biotite
TiO
Al O
FeO
CaO
O
K O
Total
formula
Ti
Al
Fe
Ca
K
Total
( AX
Phl
Ann
En
Cel
Prp
GrsAlm
AnAb
member
Ca
Fe Al CaGrtCorGrtIntGrtInt
(
a(
ab
.
Al O O =
Fe Al O O
Bt Gr
T
Ti
Ti
.
Calibration Thomp
FeO FeO
CaO CaOTotal
Total
Ti TiAl AlFe
Ca CaTotal
KTotal
B A
A B
.
.
