Geological Bulletin, Volumes 4-6Peshawar University Press, 1971 |
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Page 54
... Biotite Schist . This group is 2,000 feet thick and is mainly composed of mica schist , with various other interbedded rock units , chiefly phyllitic schist , phyllites , slaty shales , quartzites and metaconglomerates . These ...
... Biotite Schist . This group is 2,000 feet thick and is mainly composed of mica schist , with various other interbedded rock units , chiefly phyllitic schist , phyllites , slaty shales , quartzites and metaconglomerates . These ...
Page 59
... biotite , pleochroic from brownish to colourless and in some cases chloritized ; quartz , often in distinct bands and patches , containing abundant inclusions of hornblende and biotite ; calcite , in clusters or as independent grains ...
... biotite , pleochroic from brownish to colourless and in some cases chloritized ; quartz , often in distinct bands and patches , containing abundant inclusions of hornblende and biotite ; calcite , in clusters or as independent grains ...
Page 19
... biotite and hornblende . In the pyroxene - bearing varieties , hornblende usually surrounds the pyroxene . The orthopyroxene may be altered on margins with production of abundant ore granules . In one case , muscovite associates biotite ...
... biotite and hornblende . In the pyroxene - bearing varieties , hornblende usually surrounds the pyroxene . The orthopyroxene may be altered on margins with production of abundant ore granules . In one case , muscovite associates biotite ...
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