Geological Bulletin, Volumes 4-6Peshawar University Press, 1971 |
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Page 38
... hornblende and minor quartz ( in the form of intergrowth ) , indicating that advancement of metamorphism ( ? retrograde ) might have completely changed the rocks to amphibolites . In no . 19 , hornblende may surround a fine - grained ...
... hornblende and minor quartz ( in the form of intergrowth ) , indicating that advancement of metamorphism ( ? retrograde ) might have completely changed the rocks to amphibolites . In no . 19 , hornblende may surround a fine - grained ...
Page 57
... hornblende and decreases in amounts away from the contacts . The change from hornblende to epidote has resulted in the release of iron and titanium oxides , which occur as small veins of magnetite and ilmenite . Near Matakai Hill the ...
... hornblende and decreases in amounts away from the contacts . The change from hornblende to epidote has resulted in the release of iron and titanium oxides , which occur as small veins of magnetite and ilmenite . Near Matakai Hill the ...
Page 60
... hornblende increases in proportion . Hornblende is the next most abundant mineral in diorite after plagioclase . The primary hornblende crystals are light - green to deep - green pleochroic . Myrmekitic intergrowths of plagioclase and ...
... hornblende increases in proportion . Hornblende is the next most abundant mineral in diorite after plagioclase . The primary hornblende crystals are light - green to deep - green pleochroic . Myrmekitic intergrowths of plagioclase and ...
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