Diagrama Feldspato-Pertita

Prévia do material em texto

liquid
two feldspars
minimum
miscibility gap
solvus
melting T
of albite
melting T
of orthoclase
400
600
800
1000
Or Ab
20 40 60 80 1000
KAlSi O3 8 NaAlSi O3 8
Te
m
p
e
ra
tu
re
°C
% Ab
1200
1400
KAlSi O -NaAlSi O System at 0.1 Mpa (1 atm.)3 8 3 8
single feldspar
two feldspars
liquid
two feldspars
400
600
800
1000
Or Ab
20 40 60 80 1000
KAlSi O3 8 NaAlSi O3 8
Te
m
p
e
ra
tu
re
°C
1200
1400
1300
single feldspar
100% liquid
liquid composition Ab Or38 62
two feldspars
KAlSi O -NaAlSi O System at 0.1 Mpa (1 atm.)3 8 3 8
liquid
two feldspars
400
600
800
1000
Or Ab
20 40 60 80 1000
KAlSi O3 8 NaAlSi O3 8
Te
m
p
e
ra
tu
re
°C
1200
1400
1250
single feldspar
100% liquid
two feldspars
KAlSi O -NaAlSi O System at 0.1 Mpa (1 atm.)3 8 3 8
liquid composition Ab Or38 62
liquid
two feldspars
400
600
800
1000
Or Ab
20 40 60 80 1000
KAlSi O3 8 NaAlSi O3 8
Te
m
p
e
ra
tu
re
°C
1200
1400
single feldspar
feldspar composition Ab Or05 95
liquid composition Ab Or39 61
two feldspars
KAlSi O -NaAlSi O System at 0.1 Mpa (1 atm.)3 8 3 8
97% liquid
3% (K,Na)-feldspar
liquid
two feldspars
400
600
800
1000
Or Ab
20 40 60 80 1000
KAlSi O3 8 NaAlSi O3 8
Te
m
p
e
ra
tu
re
°C
1200
1150
1400
single feldspar
feldspar composition Ab Or12 88
liquid composition Ab Or49 51
two feldspars
KAlSi O -NaAlSi O System at 0.1 MPa (1 atm.)3 8 3 8
70% liquid
30% (K,Na)-feldspar
liquid
two feldspars
400
600
800
1000
Or Ab
20 40 60 80 1000
KAlSi O3 8 NaAlSi O3 8
Te
m
p
e
ra
tu
re
°C
1200
1100
1400
single feldspar
feldspar composition Ab Or24 76
liquid composition Ab Or59 41
two feldspars
KAlSi O -NaAlSi O System at 0.1 MPa (1 atm.)3 8 3 8
40% liquid
60% (K,Na)-feldspar
liquid
two feldspars
400
600
800
1000
Or Ab
20 40 60 80 1000
KAlSi O3 8 NaAlSi O3 8
Te
m
p
e
ra
tu
re
°C
1200
1075
1400
single feldspar
two feldspars
KAlSi O -NaAlSi O System at 0.1 MPa (1 atm.)3 8 3 8
feldspar composition Ab Or32 68
liquid composition Ab Or63 37
19% liquid
81% (K,Na)-feldspar
liquid
two feldspars
400
600
800
1000
Or Ab
20 40 60 80 1000
KAlSi O3 8 NaAlSi O3 8
Te
m
p
e
ra
tu
re
°C
1200
1050
1400
single feldspar
two feldspars
liquid gone
KAlSi O -NaAlSi O System at 0.1 MPa (1 atm.)3 8 3 8
100% (K,Na)-feldspar
feldspar composition Ab Or38 62
liquid
two feldspars
400
600
800
1000
Or Ab
20 40 60 80 1000
KAlSi O3 8 NaAlSi O3 8
Te
m
p
e
ra
tu
re
°C
1200
1400
single feldspar
two feldspars
liquid gone
KAlSi O -NaAlSi O System at 0.1 MPa (1 atm.)3 8 3 8
100% (K,Na)-feldspar
feldspar composition Ab Or38 62
liquid
two feldspars
400
600
800
950
1000
Or Ab
20 40 60 80 1000
KAlSi O3 8 NaAlSi O3 8
Te
m
p
e
ra
tu
re
°C
1200
1400
single feldspar
two feldspars
liquid gone
KAlSi O -NaAlSi O System at 0.1 MPa (1 atm.)3 8 3 8
100% (K,Na)-feldspar
feldspar composition Ab Or38 62
liquid
two feldspars
400
600
800
900
1000
Or Ab
20 40 60 80 1000
KAlSi O3 8 NaAlSi O3 8
Te
m
p
e
ra
tu
re
°C
1200
1400
single feldspar
two feldspars
liquid gone
KAlSi O -NaAlSi O System at 0.1 MPa (1 atm.)3 8 3 8
100% (K,Na)-feldspar
feldspar composition Ab Or38 62
liquid
two feldspars
400
600
800
850
1000
Or Ab
20 40 60 80 1000
KAlSi O3 8 NaAlSi O3 8
Te
m
p
e
ra
tu
re
°C
1200
1400
single feldspar
two feldspars
liquid gone
KAlSi O -NaAlSi O System at 0.1 MPa (1 atm.)3 8 3 8
100% (K,Na)-feldspar
feldspar composition Ab Or38 62
single feldspar
liquid
two feldspars
400
600
800
1000
Or Ab
20 40 60 80 1000
KAlSi O3 8 NaAlSi O3 8
Te
m
p
e
ra
tu
re
°C
1200
1400
two feldspars
liquid gone
KAlSi O -NaAlSi O System at 0.1 MPa (1 atm.)3 8 3 8
100% (K,Na)-feldspar
feldspar composition Ab Or38 62
liquid
two feldspars
400
600
800
750
1000
Or Ab
20 40 60 80 1000
KAlSi O3 8 NaAlSi O3 8
Te
m
p
e
ra
tu
re
°C
1200
1400
single feldspar
two feldspars
liquid gone
KAlSi O -NaAlSi O System at 0.1 MPa (1 atm.)3 8 3 8
100% (K,Na)-feldspar
feldspar composition Ab Or38 62
liquid
two feldspars
400
600
800
700
1000
Or Ab
20 40 60 80 1000
KAlSi O3 8 NaAlSi O3 8
Te
m
p
e
ra
tu
re
°C
1200
1400
single feldspar
two feldspars
feldspar composition Ab Or38 62
liquid gone
KAlSi O -NaAlSi O System at 0.1 MPa (1 atm.)3 8 3 8
100% (K,Na)-feldspar
liquid
two feldspars
400
600
800
650
1000
Or Ab
20 40 60 80 1000
KAlSi O3 8 NaAlSi O3 8
Te
m
p
e
ra
tu
re
°C
1200
1400
single feldspar
two feldspars
feldspar composition Ab Or38 62
liquid gone
KAlSi O -NaAlSi O System at 0.1 MPa (1 atm.)3 8 3 8
100% (K,Na)-feldspar
liquid
two feldspars
400
600
800
1000
Or Ab
20 40 60 80 1000
KAlSi O3 8 NaAlSi O3 8
Te
m
p
e
ra
tu
re
°C
1200
1400
single feldspar
two feldspars
K-feldspar composition Ab Or32 68
Na-feldspar composition Ab Or85 15
KAlSi O -NaAlSi O System at 0.1 MPa (1 atm.)3 8 3 8
Perthite
89% K-feldspar
11% Na-feldspar
liquid
two feldspars
400
600
550
800
1000
Or Ab
20 40 60 80 1000
KAlSi O3 8 NaAlSi O3 8
Te
m
p
e
ra
tu
re
°C
1200
1400
single feldspar
two feldspars
K-feldspar composition Ab Or25 75
Na-feldspar composition Ab Or91 09
KAlSi O -NaAlSi O System at 0.1 MPa (1 atm.)3 8 3 8
Perthite
79% K-feldspar
21% Na-feldspar
liquid
two feldspars
400
600
500
800
1000
Or Ab
20 40 60 80 1000
KAlSi O3 8 NaAlSi O3 8
Te
m
p
e
ra
tu
re
°C
1200
1400
single feldspar
two feldspars
K-feldspar composition Ab Or20 80
Na-feldspar composition Ab Or94 06
KAlSi O -NaAlSi O System at 0.1 MPa (1 atm.)3 8 3 8
Perthite
73% K-feldspar
27% Na-feldspar
liquid
two feldspars
400
450
600
800
1000
Or Ab
20 40 60 80 1000
KAlSi O3 8 NaAlSi O3 8
Te
m
p
e
ra
tu
re
°C
1200
1400
single feldspar
two feldspars
K-feldspar composition Ab Or18 82
Na-feldspar composition Ab Or95 05
Perthite
71% K-feldspar
29% Na-feldspar
KAlSi O -NaAlSi O System at 0.1 MPa (1 atm.)3 8 3 8
liquid
two feldspars
400
600
800
1000
Or Ab
20 40 60 80 1000
KAlSi O3 8 NaAlSi O3 8
Te
m
p
e
ra
tu
re
°C
1200
1400
single feldspar
K-feldspar composition Ab Or16 84
Na-feldspar composition Ab O96 04
KAlSi O -NaAlSi O System at 0.1 MPa (1 atm.)3 8 3 8
Perthite
69% K-feldspar
31% Na-feldspar
	00-AbOr
	01-AbOr-1300
	02-AbOr-1250
	03-AbOr-1200
	04-AbOr-1150
	05-AbOr-1100
	06-AbOr-1075
	07-AbOr-1050
	08-AbOr-1000
	09-AbOr-950
	10-AbOr-900
	11-AbOr-850
	12-AbOr-800
	13-AbOr-750
	14-AbOr-700
	15-AbOr-650
	16-AbOr-600
	17-AbOr-550
	18-AbOr-500
	19-AbOr-450
	20-AbOr-400