Geological Bulletin, Volume 11University of Peshawar, 1979 - Geology |
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Page 109
... pegmatite veins with radially grown tourmaline or plagioclase suns are also seen . The length of the crystals in these may reach up to 5 cm . Aplites are rare and they may cut or may themselves be cut in turn by the pegmatites and other ...
... pegmatite veins with radially grown tourmaline or plagioclase suns are also seen . The length of the crystals in these may reach up to 5 cm . Aplites are rare and they may cut or may themselves be cut in turn by the pegmatites and other ...
Page 165
... veins and pegmatite bodies , probably both of igneous and metamorphic origin , sparsely exist throughout the area . A few hydrothermal quartz veins at Gabarai and Inayat Kili bear copper mineralization . Some manganese mineralization is ...
... veins and pegmatite bodies , probably both of igneous and metamorphic origin , sparsely exist throughout the area . A few hydrothermal quartz veins at Gabarai and Inayat Kili bear copper mineralization . Some manganese mineralization is ...
Page 171
... pegmatite veins . Gradual gradation from granites to granodiorites is a common pheno- menon , but keeping aside the minor deviations in texture and composition these rocks have almost a similar mineralogy . These consits of alkali ...
... pegmatite veins . Gradual gradation from granites to granodiorites is a common pheno- menon , but keeping aside the minor deviations in texture and composition these rocks have almost a similar mineralogy . These consits of alkali ...
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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