Geological Bulletin, Volume 6University of Peshawar, 1971 - Geology |
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Page 3
... seen ( Porter , 1971 ) . To the north of Utror and Falakser , and along the upper reaches of many major streams , the valleys are characteristically broader and / or U - shaped . The tributaries may join the major streams , forming ...
... seen ( Porter , 1971 ) . To the north of Utror and Falakser , and along the upper reaches of many major streams , the valleys are characteristically broader and / or U - shaped . The tributaries may join the major streams , forming ...
Page 13
... seen . It appears that throughout the eruptive cycle , the explosive activity was a rule rather than an exception . However , between Gabral and Utror , an area prabably occupied by later eruptions , lavas dominate over the pyroclastic ...
... seen . It appears that throughout the eruptive cycle , the explosive activity was a rule rather than an exception . However , between Gabral and Utror , an area prabably occupied by later eruptions , lavas dominate over the pyroclastic ...
Page 68
... seen in pyroxenes . Most of the pyroxenos are partially or completely rimmed by hornblende . Well - developed corona structures are commonly observed aronnd hypersthene , which is usually surrounded by augite , followed by hornblende ...
... seen in pyroxenes . Most of the pyroxenos are partially or completely rimmed by hornblende . Well - developed corona structures are commonly observed aronnd hypersthene , which is usually surrounded by augite , followed by hornblende ...
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