Geological Bulletin, Volume 6University of Peshawar, 1971 - Geology |
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Page 47
... iron . The surfaces of the basal strata of the Lower Member are profusely coated with melanterite or iron sulphate , a white cfflorescence , formed by the oxidation of pyrite . Pyriteous shales and dark bituminous shale ...
... iron . The surfaces of the basal strata of the Lower Member are profusely coated with melanterite or iron sulphate , a white cfflorescence , formed by the oxidation of pyrite . Pyriteous shales and dark bituminous shale ...
Page 61
... iron - stone . Strangely enough they did succeed in getting some iron out of it . It is probably because of the high degree of alteration which locally changes the aspect of the mono - mineralic rock , as a result of which iron and ...
... iron - stone . Strangely enough they did succeed in getting some iron out of it . It is probably because of the high degree of alteration which locally changes the aspect of the mono - mineralic rock , as a result of which iron and ...
Page 66
... iron stones , and about a century ago , they smelted some black sands in open furnaces of a very primitive kind , for the extraction of iron . Massive hornblende rock was also extensively used for this purpose . The iron was extractable ...
... iron stones , and about a century ago , they smelted some black sands in open furnaces of a very primitive kind , for the extraction of iron . Massive hornblende rock was also extensively used for this purpose . The iron was extractable ...
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