Geological Bulletin, Volumes 4-6Peshawar University Press, 1971 |
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Page 69
... minerals are quartz , microcline , microperthite and albite , and the dark sodic minerals aegirine and riebeckite . Accessory minerals include astrophyllite ( mainly in the marginal , gneissose portion ) , biotite , sphene , zircon ...
... minerals are quartz , microcline , microperthite and albite , and the dark sodic minerals aegirine and riebeckite . Accessory minerals include astrophyllite ( mainly in the marginal , gneissose portion ) , biotite , sphene , zircon ...
Page 73
... minerals recently reported from Peshawar region and pointed out their potential economic importance . Ali ( 1967 ) has reported most of the gemstones found in the northwest , and Mian ( 1970 ) summarises all the Cr - bearing minerals ...
... minerals recently reported from Peshawar region and pointed out their potential economic importance . Ali ( 1967 ) has reported most of the gemstones found in the northwest , and Mian ( 1970 ) summarises all the Cr - bearing minerals ...
Page 91
... minerals . This pattern of thought was ultimately transformed by the plutonic concept of Hutton , and there was thus a gradual drift in favour of plutonism . This ultimately resulted in the concept that attributed most mineral deposits ...
... minerals . This pattern of thought was ultimately transformed by the plutonic concept of Hutton , and there was thus a gradual drift in favour of plutonism . This ultimately resulted in the concept that attributed most mineral deposits ...
Contents
Mianwali Group Redefined By B R Husain | 14 |
The Study of the Joint Patterns and the other Structures of the Manki Slate | 24 |
Stratigraphic Studies of the Nowshera Reef Complexes Nowshera Tehsil | 33 |
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Common terms and phrases
abundant Ahmad alkaline granite alluvium altered amphibole amphibolites Attock Attock Shale Attock-Cherat Range bands beds biotite Bull calcareous calcite carbonate cent Cherat chlorite colour composed contain correlated crystals dark deposits diorites dolomitic epidote exposed feet thick feldspar folded fossils fractures Gandghar Gandghar Range garnet Geol geology Gilgit Gilgit Agency gneisses grains graphite green grey groundmass Hazara hornblende Hornblendic Group Ibid igneous Indus intrusions Kalam Kandar Khan Khewra Khwar Khyber Agency Kohistan limestone lithological Lower Manki Slate marble Masjid Formation metamorphism metasedimentary miles minerals minor Misri Banda Quartzite Mohmand Nala norites Nowshera occur outcrops Palaeozoic pegmatites peridotites Peshawar phenocrysts phyllites plagioclase pleochroic pyroxene quartzite reef complex Reef Core region River samples sandstone Schistose Group schists sediments Shah shale Silurian Siluro-Devonian solutions sphene Stauffer stratigraphic structure sulphide Surv Tahirkheli Tertiary texture thin sections ultramafic Upper Swat valley village Warsak weathered West Pakistan zone