Geological Bulletin, Volume 11University of Peshawar, 1979 - Geology |
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Page 69
... anorthosites capable of plastic flow under granulite facies conditions . Although the streaks and some thin bands of anorthosite and pyroxenite may have been produced by metamor- phic differentiation , much of the layering does not seem ...
... anorthosites capable of plastic flow under granulite facies conditions . Although the streaks and some thin bands of anorthosite and pyroxenite may have been produced by metamor- phic differentiation , much of the layering does not seem ...
Page 76
... anorthosite massifs , although Crosby ( 1972 ) has warned against " making sweeping generalization " . The narrow range of plagioclase composition in the anorthosites has been attributed in large massifs to narrow temperature interval ...
... anorthosite massifs , although Crosby ( 1972 ) has warned against " making sweeping generalization " . The narrow range of plagioclase composition in the anorthosites has been attributed in large massifs to narrow temperature interval ...
Page 84
... anorthosites . In ' Origin of Anorthosites and Related Rocks ( Y. W. Isachsen , ed . ) . N. Y. State Mus . & Sci Serv . Mem . 18 , 289-303 . --1972 . Petrogenesis and signigicance of leuconorite inclusions in the main Adirondack anorthosite ...
... anorthosites . In ' Origin of Anorthosites and Related Rocks ( Y. W. Isachsen , ed . ) . N. Y. State Mus . & Sci Serv . Mem . 18 , 289-303 . --1972 . Petrogenesis and signigicance of leuconorite inclusions in the main Adirondack anorthosite ...
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Common terms and phrases
abundant amphibole amphibolites andesite anorthosite assemblages associated Bajaur Baltistan bands Baraul belt biotite Bull calc-alkaline Chaudhry Chitral chlorite clinopyroxene coarse-grained composition contain Cretaceous Desio Diwangar epidote fault feldspar foliation Formation garnet granulites Geol Geology Gilgit gneisses gneissose grains granitic rocks Granodiorite granulites green Greenstone Complex grey Group Hazara Himalaya hornblende hypersthene igneous Indo-Pakistan Indus valley intrusions island arc Jan and Mian Jandul Kakar Kalam Karakoram Khan Kohistan layers limestone mafic magma Main Mantle Thrust margins metamorphic metasedimentary rocks metasediments mica Nanga Parbat norites occur opaque minerals orthopyroxene outcrops Pakistan pegmatites peridotites Peshawar Petrography petrology plagioclase plate pyroxene pyroxene granulites pyroxenites quartz diorites quartzites rarely region Reshun rutile schists sequence SiO2 slates southern sphene structure suture zone Swat Kohistan syntaxis Tahirkheli tectonic Tertiary texture thick trend tuffs twinning ultramafic rocks Univ Upper Swat Ushu Gol Utmankhel veins vicinity volcanic rocks whilst xenoliths Yasin