Geological Bulletin, Volume 14University of Peshawar, 1981 - Geology |
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Page 59
... developed in these regions well - defined chemical variations of of different magnitude in each region are often recognized even within a given compositional type . McBirney ( 1969 ) , Forbes et al . ( 1969 ) and Yoder ( 1969 ) ...
... developed in these regions well - defined chemical variations of of different magnitude in each region are often recognized even within a given compositional type . McBirney ( 1969 ) , Forbes et al . ( 1969 ) and Yoder ( 1969 ) ...
Page 126
... developed in contact with the gneiss ( Figs . 1 and 2 ) . The chilled contact of gneiss together with hornfelsing , toughness and develop- ment of somewhat criss - cross foliation in the almandine schist probably indicates the latter's ...
... developed in contact with the gneiss ( Figs . 1 and 2 ) . The chilled contact of gneiss together with hornfelsing , toughness and develop- ment of somewhat criss - cross foliation in the almandine schist probably indicates the latter's ...
Page 136
... developed at the margin of the older albite phase . Quartz is present as fine to medium , subhedral to anhedral grains often as aggregates . Biotite is present as thin flakes , generally curved and bent around feldspar porphyroblasts ...
... developed at the margin of the older albite phase . Quartz is present as fine to medium , subhedral to anhedral grains often as aggregates . Biotite is present as thin flakes , generally curved and bent around feldspar porphyroblasts ...
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