Geological Bulletin, Volume 5University of Peshawar - Geology |
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Page 11
... weathering product is usually in the form of rectangular chips . Grey , greenish grey and brownish grey are the common colours associated with the weathered surfaces whereas the fresh faces are light grey or light greenish grey . In ...
... weathering product is usually in the form of rectangular chips . Grey , greenish grey and brownish grey are the common colours associated with the weathered surfaces whereas the fresh faces are light grey or light greenish grey . In ...
Page 15
... weathered surfaces . The fresh faces are usually grey and greenish grey . Due to typical fractures developed in the shale the weathering prc- ducts are usually sharp needle - like splintery fragments . The siltstone is grey and greenish ...
... weathered surfaces . The fresh faces are usually grey and greenish grey . Due to typical fractures developed in the shale the weathering prc- ducts are usually sharp needle - like splintery fragments . The siltstone is grey and greenish ...
Page 31
... weathering due to the availability of water from the schists , chlorite having been , at least , partially produced ... weathered iron oxide . The bands may be coarse or megascopically very fine and at many places show minor distortion ...
... weathering due to the availability of water from the schists , chlorite having been , at least , partially produced ... weathered iron oxide . The bands may be coarse or megascopically very fine and at many places show minor distortion ...
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