Geological Bulletin, Volume 14University of Peshawar, 1981 - Geology |
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Page 6
... altered gabbros and diorites . Epidote may reach up to 10 % , whilst biotite makes less than 5 % of such rocks . The ... Alteration of augite to green amphi- bole , chlorite and opaque dust is common in most of the rocks except where ...
... altered gabbros and diorites . Epidote may reach up to 10 % , whilst biotite makes less than 5 % of such rocks . The ... Alteration of augite to green amphi- bole , chlorite and opaque dust is common in most of the rocks except where ...
Page 103
... altered ultramafics from calcareous sediments should delineate more occurrences ) . They are commonly sheared , altered , and display tectonic fabric . Serpentinization , steatization , and carbonate alteration are common but the ...
... altered ultramafics from calcareous sediments should delineate more occurrences ) . They are commonly sheared , altered , and display tectonic fabric . Serpentinization , steatization , and carbonate alteration are common but the ...
Page 104
... alteration is noted : talc and having Ultramafic rocks Grey green altered ultramafics , veined by abundant relics brown rocks with reddish brown relics and some quartz veins Brown or green carbonate + talc Cr- mica rocks , relics absent ...
... alteration is noted : talc and having Ultramafic rocks Grey green altered ultramafics , veined by abundant relics brown rocks with reddish brown relics and some quartz veins Brown or green carbonate + talc Cr- mica rocks , relics absent ...
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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Common terms and phrases
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