Geological Bulletin, Volume 14University of Peshawar, 1981 - Geology |
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Page 15
The carbonate, making up to 80%, is mostly stained brown and lined with opaque
brown material along cleavages and grain boundaries. Quartz and albite reach
up to 8% each. Rarely a clear variety of calcite with albite inclusions surrounds ...
The carbonate, making up to 80%, is mostly stained brown and lined with opaque
brown material along cleavages and grain boundaries. Quartz and albite reach
up to 8% each. Rarely a clear variety of calcite with albite inclusions surrounds ...
Page 20
The other variety is kaersutite having an extinction angle of 10° and a pleochroic
scheme of a = straw yellow, P = reddish brown and y = deep reddish brown. A
less common amphibole with a = colourless, 3 = light green and Y = bluish green
...
The other variety is kaersutite having an extinction angle of 10° and a pleochroic
scheme of a = straw yellow, P = reddish brown and y = deep reddish brown. A
less common amphibole with a = colourless, 3 = light green and Y = bluish green
...
Page 143
The brown sandstones carry a scattered basal pebble lag composed of brown
quartzite and igneous clasts, possibly derived from the Tanawal (or equivalent)
quartzites, and basic igneous pebbles, possibly derived form the Panjal Traps.
The brown sandstones carry a scattered basal pebble lag composed of brown
quartzite and igneous clasts, possibly derived from the Tanawal (or equivalent)
quartzites, and basic igneous pebbles, possibly derived form the Panjal Traps.
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Contents
Petrography of the Loe Shilman Carbonatite Complex Khyber Agency | 29 |
Major Elements Abundance in the Kalam Lavas | 45 |
Sections of the Wargal Limestone Western Salt Range Pakistan | 63 |
12 other sections not shown
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Common terms and phrases
albite albite-carbonate albitites alkaline rocks almandine Amph amphibole andesite apatite associated band beds betafite biotite blueschists brown Bull calc-alkaline calcareous calcite carbonate carbonatite Chaudhry chlorite clinopyroxene complex contain country rocks Desio diorites dolerites dolomite epidote fault feldspar fine-grained Formation gabbroic rocks gabbros garnet Geol Geology gneisses grains granitic belt granitic gneisses granitic rocks granodiorite graphitic schists Himalayas hornblende igneous Indus intrusions island arc Jurassic Kalam volcanic zone Karakoram KASC Kempe and Jan Khyber Agency Kohistan magma magnetite Mansehra margin Mauji metamorphism metasediments mica microfacies minerals MODAL COMPOSITION muscovite northern occur outcrop Pakistan pegmatite Peshawar Plain petrography petrology phases plagioclase pluton present Punjab Univ pyrite pyrochlore pyroxene pyroxenites quartz quartzite range region Reshian rhyolite river samples sandstones schistosity schists sediments sequence shales Shangla Shilman Siwalik sphene subduction suggest Swat syenites Tahirkheli Tarbela tectonic tourmaline ultramafic University of Peshawar uranium veins Wargal Limestone Warsak