Experimental Studies on K-Rich Rocks - Origin of Potassium-rich Silica-deficient Igneous Rocks - page 387

Fig. 13.6 a The water-
saturated phase relationships
of an orendite (A1770).
Symbols: open circles: above
liquidus; solid circles:
melt + crystals; solid squares:
subsolidus (after Barton and
Hamilton 1978).
Abbreviations are same as in
Table 13.1 and Fig. 13.2 .
b The water-saturated phase
relationships of a madupite
(A1805) (after Barton and
Hamilton 1978). San:
sanidine. Abbreviations are
same as in Table 13.1 and
Fig. 13.2 . c The water
saturated phase relationships
of a wyomingite (A1745)
(after Barton and Hamilton
1978). Abbreviations are
same as in Table 13.1 and
Fig. 13.2

(a)

0.5

Ph
+
Cpx
+
Amph

0.4

Ph
+
Cpx
+
Amph
+
L

Ph
+
Cpx
+
L

Ph
+
Cpx
+
L

0.3

0.2

Ph +
Cpx +
Amph +
Lc

Ph+Cpx

0.1

+

Amph+Lc+L

Lc+Ol+L
Lc+L

Ph+Cpx+Lc+L
Ph+Cpx+Lc+L

800 900 1000 1100 1200 1300

T o

(b)

0.5

0.4 Ph

+
Cpx
+
Amph
+
L

Ph
+
(Ol)
+
Cpx
+
L

Ph
+
Cpx
+
Amph
+
San
+
L

0.3

0.2

Ph+(Ol)+
Cpx+Lc+
San+L

0.1

Ph+Cpx+Lc+
San+Amph+L

Ph+(Ol)+
Cpx+Lc+L
Ol+Lc
+Cpx+L

Ol+L Lc+L

Ol+Cpx+Lc+
San+L

Ol+Lc+L

800 900 1000 1100 1200 1300

T o

(c)

0.5

0.4

Ph
+
Cpx
+
Amph
+
San
+
L

Ph
+
Cpx
+
Amph
+
L

Ph
+
Cpx
+
L

0.3

0.2

Ph+Cpx+Amph
+Lc+L

0.1

Ph+Cpx+
Amph+San
+Lc+L

Ol+Cpx+L

Cpx+Ph+
Lc+L

Ph+Cpx+San+Lc+L

Ol+Cpx+Lc+L

C px+San+Lc+L

800 900 1000 1100 1200

T o