Geological Bulletin, Volume 11University of Peshawar, 1979 - Geology |
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Page 70
... Pegmatites and veins in the granulites An interesting feature of the amphibolites and , especially , pyroxene granulites of the area is the occurrence of hornblende - plagioclase pegmatites up to 5 m thick and , locally , unusually ...
... Pegmatites and veins in the granulites An interesting feature of the amphibolites and , especially , pyroxene granulites of the area is the occurrence of hornblende - plagioclase pegmatites up to 5 m thick and , locally , unusually ...
Page 71
... pegmatites may be cut by hornblende - plagioclase pegmatite dykelets and they may have small peridotites and pyroxenites on their margins . ' Hornblendites ' of this type are more abundant in the amphibolites of Dir to the west of the ...
... pegmatites may be cut by hornblende - plagioclase pegmatite dykelets and they may have small peridotites and pyroxenites on their margins . ' Hornblendites ' of this type are more abundant in the amphibolites of Dir to the west of the ...
Page 109
Pegmatites and Aplites An intersting feature of the area is the presence of pegmatites and aplites of varied thicknesses . The common types are those of hornblende pegmatite which are abundant in the gneissose - quartz diorites . Mostly ...
Pegmatites and Aplites An intersting feature of the area is the presence of pegmatites and aplites of varied thicknesses . The common types are those of hornblende pegmatite which are abundant in the gneissose - quartz diorites . Mostly ...
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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