Geological Bulletin, Volume 6University of Peshawar, 1971 - Geology |
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Page 59
... pyroxene - free . In this type hornblende is generally altered as a result of which sphene and ilmenite crystals are formed . Plagioclase in the light coloured gniessose rocks is usually completely altered up to the core . The dark ...
... pyroxene - free . In this type hornblende is generally altered as a result of which sphene and ilmenite crystals are formed . Plagioclase in the light coloured gniessose rocks is usually completely altered up to the core . The dark ...
Page 60
... pyroxene and quartz . Other minor and accessory minerals are biotite , sphene , garnet , a patite and epidote , occuring as one and occasionally more minerals in the same rock body . Plagioclase is generally andesine . It is more sodic ...
... pyroxene and quartz . Other minor and accessory minerals are biotite , sphene , garnet , a patite and epidote , occuring as one and occasionally more minerals in the same rock body . Plagioclase is generally andesine . It is more sodic ...
Page 68
... pyroxenes . Most of the pyroxenos are partially or completely rimmed by hornblende . Well - developed corona ... pyroxene . Occasional myrmekitic growths of hornblende and plagioclase are observed . The hornblende of norites is ...
... pyroxenes . Most of the pyroxenos are partially or completely rimmed by hornblende . Well - developed corona ... pyroxene . Occasional myrmekitic growths of hornblende and plagioclase are observed . The hornblende of norites is ...
Contents
Preliminary geology and petrography of Swat Kohistan | 1 |
The geology of the Gandghar Range Distt Hazara N W F | 33 |
Lithological classification and environment of deposition of | 43 |
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abundant altered amphibolites appears associated bands base beds biotite body brown Bull chlorite colour common complex concentration consist contain correlated cover crystalline crystals dark deposits developed diorites distance dykes east eastern epidote exposed extend feet feldspar folded foliation Formation fractures Gandghar Range garnet Geol geology gneisses grades grains granites green grey Group Hazara hornblende inches Indus intrusions iron Kalam Kohistan latter layers light limestone locally located Lower marble material Member metals Middle miles minerals minor natural norites occur outcrop Pakistan pegmatite Peshawar phyllites places plagioclase present probably quartz quartzites rare region result River road rocks samples schists seen sericite shale shear slates solubility solutions southern stream strike structure suggest sulphide Swat temperature thick thin transport types Univ Upper usually valley varieties various veins village volcanic waters western zone