Geological Bulletin, Volume 14University of Peshawar, 1981 - Geology |
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Page 21
... quartz whilst the rest of the grain is totally devoid of it . The intergrown quartz grains are optically continuous in most cases and contained in a single albite grain , but in a few cases more than one albite grain share the optically ...
... quartz whilst the rest of the grain is totally devoid of it . The intergrown quartz grains are optically continuous in most cases and contained in a single albite grain , but in a few cases more than one albite grain share the optically ...
Page 102
... quartz occur in some rocks and clinozoisite in a few . Veins of carbonate and quartz are found in the rocks . Associated with these rocks are chromite - rich concentrations ( chromitites ) veined by kammererite or green chlorite ...
... quartz occur in some rocks and clinozoisite in a few . Veins of carbonate and quartz are found in the rocks . Associated with these rocks are chromite - rich concentrations ( chromitites ) veined by kammererite or green chlorite ...
Page 168
feldspar , quartz and biotite or chlorite . The alkaline micro - granites contain quartz and perthite phenocrysts , with aegirine and riebeckite needles and biotite , in a groundmass of quartz , alkali feldspar and accessory minerals ...
feldspar , quartz and biotite or chlorite . The alkaline micro - granites contain quartz and perthite phenocrysts , with aegirine and riebeckite needles and biotite , in a groundmass of quartz , alkali feldspar and accessory minerals ...
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 |
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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