Geological Bulletin, Volume 11University of Peshawar, 1979 - Geology |
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Page 81
... contains intergrown quartz and may surround opaque minerals . It occurs in isolated plates or poikilitic patches but , in some cases , it grows radially into symplectic intergrowths containing myrmekite towards the edge . Garnet has not ...
... contains intergrown quartz and may surround opaque minerals . It occurs in isolated plates or poikilitic patches but , in some cases , it grows radially into symplectic intergrowths containing myrmekite towards the edge . Garnet has not ...
Page 92
... contains abundant opaque inclusions in the centre . In a few rocks it is antiperthitic and contains rounded quartz inclusions , thus resembling the feldspar of the Swat pyroxene granulites . K - feldspar is occasionally present ; in the ...
... contains abundant opaque inclusions in the centre . In a few rocks it is antiperthitic and contains rounded quartz inclusions , thus resembling the feldspar of the Swat pyroxene granulites . K - feldspar is occasionally present ; in the ...
Page 135
... contains clinopyroxene as the only pyroxene with traces of hornblende and shows the highest colour index ( 22 ) for this type of diorites . There are samples , however , which contain roughly equal amount of ortho and clinopyroxene ...
... contains clinopyroxene as the only pyroxene with traces of hornblende and shows the highest colour index ( 22 ) for this type of diorites . There are samples , however , which contain roughly equal amount of ortho and clinopyroxene ...
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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