Geological Bulletin, Volume 14University of Peshawar, 1981 - Geology |
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The intrusions ( sills , dykes and plugs ) are petrographically varied but closely
associated , collectively constituting a rather unusual igneous complex . The
following sequence of intrusions from oldest to youngest , slightly modified after ...
The intrusions ( sills , dykes and plugs ) are petrographically varied but closely
associated , collectively constituting a rather unusual igneous complex . The
following sequence of intrusions from oldest to youngest , slightly modified after ...
Page 29
The rock - types of the complex include altered ( meta ) gabbros / dolerite ,
followed by amphibole — apatite - , biotite / phlogopite - , and dolomitic
carbonatites , syenites and lamprophyric rocks , and Fe - rich hydrothermal veins
. The syenitic ...
The rock - types of the complex include altered ( meta ) gabbros / dolerite ,
followed by amphibole — apatite - , biotite / phlogopite - , and dolomitic
carbonatites , syenites and lamprophyric rocks , and Fe - rich hydrothermal veins
. The syenitic ...
Page 30
The complex , apparently , is an extension of the Early Tertiary alkaline igneous
province of NWFP extending from Warsak to Tarbela and , possibly beyond into
Mansehra ( Kempe and Jan , 1970 ; Kempe , 1973 ) . The various alkaline ...
The complex , apparently , is an extension of the Early Tertiary alkaline igneous
province of NWFP extending from Warsak to Tarbela and , possibly beyond into
Mansehra ( Kempe and Jan , 1970 ; Kempe , 1973 ) . The various alkaline ...
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Contents
The Geology and Petrography of the Tarbela Alkaline Complex | 1 |
Petrography of the Loe Shilman Carbonatite Complex Khyber Agency | 29 |
Major Elements Abundance in the Kalam Lavas | 45 |
Copyright | |
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Common terms and phrases
abundant albite albitites alkaline altered amphibole andesite apatite associated band basic beds belt biotite bodies brown Bull calcite carbonate carbonatite chemical chlorite complex composition consist contain deposits described detailed developed diorites dolomite epidote et al fault feldspar field Formation gabbroic Geol Geology gneisses grains granites granitic rocks green Himalayas hornblende igneous indicate Indus intrusions island arc Jurassic Kalam Karakoram Kempe Kohistan Late Limestone locally lower magmatic magnetite major margin metamorphism microfacies minerals minor muscovite normal northern obducted occur origin outcrop Pakistan Peshawar petrography phases plagioclase Plate Pleistocene present pyrite pyrochlore quartz quartzite range region reported river rocks samples sandstones schists sediments sequence sericite shales similar Siwalik sphene structure suggest Swat syenites Table Tahirkheli Tarbela tectonic thick thin Traces Univ University Upper Valley varieties veins volcanic Warsak West zone