Geological Bulletin, Volume 11University of Peshawar, 1979 - Geology |
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Page 30
... less silicic rocks . > The ultramafic rocks have alpine - type features but , unlike most alpine- type ultramafic rocks , they are dominated by diopsidites ( with or without olivine ) ; dunites , harzburgites aud websterites together ...
... less silicic rocks . > The ultramafic rocks have alpine - type features but , unlike most alpine- type ultramafic rocks , they are dominated by diopsidites ( with or without olivine ) ; dunites , harzburgites aud websterites together ...
Page 58
... less silicic than even pure anorthite ; the possibility of metasoma- tism or metasedimentary origin seems more plausible . Corundum has also been reported from the amphibolites at Timurgara , Dir , and near Shah Dheri ( Jan et al ...
... less silicic than even pure anorthite ; the possibility of metasoma- tism or metasedimentary origin seems more plausible . Corundum has also been reported from the amphibolites at Timurgara , Dir , and near Shah Dheri ( Jan et al ...
Page 73
... less likely , the present assemblages are retrograde . However , it is also possible that the granulites at the time ... less than 2 % while the opaque minerals are less than 3 % . The amount of the former two minerals in Dir norites ...
... less likely , the present assemblages are retrograde . However , it is also possible that the granulites at the time ... less than 2 % while the opaque minerals are less than 3 % . The amount of the former two minerals in Dir norites ...
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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