Geological Bulletin, Volume 14University of Peshawar, 1981 - Geology |
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Page 16
... normal - gabbros , and diorites , suggest the compositional range from An to An " . It is noticeable that the An ... normal albite are a 1.527 1.533 ; y = 1.537-1.540 , corresponding to An 0-8 % . The Y An - content of the chess - board ...
... normal - gabbros , and diorites , suggest the compositional range from An to An " . It is noticeable that the An ... normal albite are a 1.527 1.533 ; y = 1.537-1.540 , corresponding to An 0-8 % . The Y An - content of the chess - board ...
Page 17
... normal to each other . The twin boundaries are stepped and terminate abruptly . At places only one set of narrow discontinuous lamellae is observed looking like normal albite . Such a pattern may have developed by coalescence from chess ...
... normal to each other . The twin boundaries are stepped and terminate abruptly . At places only one set of narrow discontinuous lamellae is observed looking like normal albite . Such a pattern may have developed by coalescence from chess ...
Page 50
... Normal andesite . Ushu Valley , 24 miles south of Paloga village . Andesite . Near Utror village . Low - silica andesite . North of Gabral River near Utror village . Ba Siliceous and normal andesite . Near Utror village . Ba K2O 30 40 ...
... Normal andesite . Ushu Valley , 24 miles south of Paloga village . Andesite . Near Utror village . Low - silica andesite . North of Gabral River near Utror village . Ba Siliceous and normal andesite . Near Utror village . Ba K2O 30 40 ...
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 |
Copyright | |
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albite albite-carbonate albitites alkaline granites 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 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 magmatic magnetite Mansehra margin Mauji metamict metamorphism metasediments mica microfacies minerals MODAL COMPOSITION muscovite northern occur outcrop Pakistan pegmatite Peshawar Plain petrography petrology plagioclase pluton Punjab Univ pyrite pyrochlore 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 ultramafic University of Peshawar veins Warsak