Geological Bulletin, Volume 5University of Peshawar - Geology |
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Page 11
... light grey or light greenish grey . In thin sections slight metamorphic effects are observed . The development of chlorite is visible in most of the sections cut from phyllite whereas biotite is not an uncommon constituent . The quartz ...
... light grey or light greenish grey . In thin sections slight metamorphic effects are observed . The development of chlorite is visible in most of the sections cut from phyllite whereas biotite is not an uncommon constituent . The quartz ...
Page 12
... light grey to black thin bedded to massive , medium- to fine - grained crystalline limestone , with subordinate grey and ferrugineous shale on the top . On the basis of lithology , the limestone can be divided into three parts : ( c ) ...
... light grey to black thin bedded to massive , medium- to fine - grained crystalline limestone , with subordinate grey and ferrugineous shale on the top . On the basis of lithology , the limestone can be divided into three parts : ( c ) ...
Page 16
... light grey , greenish grey , rusty brown and pinkish brown are the common colours displayed by the quartzite on the weathered surfaces . The white quartzite band , 5 to 12 feet thick , forms a conspicuous horizon in these beds . It is ...
... light grey , greenish grey , rusty brown and pinkish brown are the common colours displayed by the quartzite on the weathered surfaces . The white quartzite band , 5 to 12 feet thick , forms a conspicuous horizon in these beds . It is ...
Contents
Vol | 1 |
Vol | 5 |
Petrography of the upper part of Kohistan and southwestern Gilgit | 27 |
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Common terms and phrases
abundant Ahmad Ali Masjid altered amphibole amphibolites Attock Attock Slates Attock-Cherat Range bands biotite Bull calcareous calcite carbonate Carboniferous Cherat chlorite colour correlated Cretaceous cross-bedding Darwazai deposits Devonian diorites dolomite epidote exposed feet thick feldspar fossils fractures garnet Geol geology Gilgit Agency gneisses grains granitic green grey Hazara District hornblende Ibid igneous India Indus River intrusions Jamrud Jan and Tahirkheli Jour Khan Khattak Khewra Formation Khwar Khyber Agency Kohat Kohistan Landikotal Slate limestone lithological Manki Slate Masjid Formation metamorphism metasedimentary miles minerals minor Mohmand Agency muscovite nala norites Nowshera occur outcrops Palaeozoic Paleocene Panjab Univ pegmatites Peshawar phyllites plagioclase pyroxene quartz quartzite reef region Rehman Ripple Marks rocks Salt Range sandstone Schistose Group schists sedimentary Shagai Shagai Limestone Shah Dheri shale Silurian Siluro-Devonian slaty shale Stauffer stratigraphic structures Surv Tertiary thin bedded Thin Section ultramafic veins weathered West Pakistan yellowish