Geological Bulletin, Volume 11University of Peshawar, 1979 - Geology |
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Page 81
Most of the biotite contains intergrown quartz and may surround opaque minerals
. It occurs in isolated plates or pojkilitic patches but , in some cases , it grows
radially into symplectic intergrowths containing myrmekite towards the edge .
Most of the biotite contains intergrown quartz and may surround opaque minerals
. It occurs in isolated plates or pojkilitic patches but , in some cases , it grows
radially into symplectic intergrowths containing myrmekite towards the edge .
Page 92
Since the area to the north of Asrit along the Swat river contains all types of the
quartz diorites as well as intermediate granulites , the boundary between the two
groups of rocks shown on various maps ( e . g . , Jan , 1977b ) is quite arbitrary .
Since the area to the north of Asrit along the Swat river contains all types of the
quartz diorites as well as intermediate granulites , the boundary between the two
groups of rocks shown on various maps ( e . g . , Jan , 1977b ) is quite arbitrary .
Page 92
Since the area to the north of Asrit along the Swat river contains all types of the
quartz diorites as well as intermediate granulites, the boundary between the two
groups of rocks shown on various maps (e. g., Jan, 1977b) is quite arbitrary.
Since the area to the north of Asrit along the Swat river contains all types of the
quartz diorites as well as intermediate granulites, the boundary between the two
groups of rocks shown on various maps (e. g., Jan, 1977b) is quite arbitrary.
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Common terms and phrases
abundant altered amphibole amphibolites anorthosite appears associated bands basic bedded belt biotite bodies Bull Chitral clinopyroxene common complex composition considered contain dark developed diorites east epidote exposed extend fault feldspar foliation Formation garnet Geol Geology Gilgit gneisses gneissose grains granitic granulites green grey Group Hazara Himalaya hornblende igneous inclusions Indus intrusions Jijal Kalam Khan Kohistan layers less light limestone locally located lower major margins mass material medium metamorphic Mian Middle minerals minor Nanga Parbat norites northern occur opaque origin Pakistan pegmatites Peshawar places plagioclase plate present probably pyroxene pyroxene granulites pyroxenites quartz quartzites range rare region reported result rocks schists sequence sericite slates southern stream structure studies suggest Swat Tahirkheli tectonic thick thin thrust traces trend twinning ultramafic Univ upper usually valley veins volcanic western zone ܘ ܘ ܘ