Geological Bulletin, Volume 14University of Peshawar, 1981 - Geology |
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Page 103
epidote and actinolite . Biotite , muscovite / phengite , rutile , and sphene occur in
a few rocks , and garnet in rare cases . We consider that most of the pelitic -
psammiticlooking rocks in the western part of Shangla pass are tuffaceous in
origin .
epidote and actinolite . Biotite , muscovite / phengite , rutile , and sphene occur in
a few rocks , and garnet in rare cases . We consider that most of the pelitic -
psammiticlooking rocks in the western part of Shangla pass are tuffaceous in
origin .
Page 173
... whereas the core zone contains hornblende - biotite granite , and two - mica
granite in aplitic , granitic and pegmatitic textures . Tonalites and granodiorites
are reported to occur as apophyses in the aureole zone . The earliest ages from
this ...
... whereas the core zone contains hornblende - biotite granite , and two - mica
granite in aplitic , granitic and pegmatitic textures . Tonalites and granodiorites
are reported to occur as apophyses in the aureole zone . The earliest ages from
this ...
Page 185
Grains of garnet , epidote , pyribole and tourmaline may also occur . The matrix is
composed of very small ... 47 , Table - 1 ) occurs as medium to coarse grains ,
mostly subangular to subrounded . Some small quartz grains may also occur in ...
Grains of garnet , epidote , pyribole and tourmaline may also occur . The matrix is
composed of very small ... 47 , Table - 1 ) occurs as medium to coarse grains ,
mostly subangular to subrounded . Some small quartz grains may also occur in ...
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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 |
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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