Geological Bulletin, Volume 5University of Peshawar - Geology |
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Page 55
MINERALOGICAL COMPOSITION Table II gives the mineralogical composition of
the Khewra Formation . The percentages of the various components of the
sandstone were calculated with the help of a point counter . About 600 points
were ...
MINERALOGICAL COMPOSITION Table II gives the mineralogical composition of
the Khewra Formation . The percentages of the various components of the
sandstone were calculated with the help of a point counter . About 600 points
were ...
Page 104
have reported abundant hypersthene gabbros ( norites ) from Kohistan area but
the writers did not find any norite in their area . However , at least one rock is
gabbroic in composition . The sample is from a small intrusive body , associated
with ...
have reported abundant hypersthene gabbros ( norites ) from Kohistan area but
the writers did not find any norite in their area . However , at least one rock is
gabbroic in composition . The sample is from a small intrusive body , associated
with ...
Page 140
The rock apparently is formed mainly of fragments of volcanic rocks that differ
slightly in texture and may also vary in composition . Some are extremely fine -
grained and cryptocrystalline , others are microcrystalline . A few nave a distinct ...
The rock apparently is formed mainly of fragments of volcanic rocks that differ
slightly in texture and may also vary in composition . Some are extremely fine -
grained and cryptocrystalline , others are microcrystalline . A few nave a distinct ...
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abundant Agency Ahmad altered amphibolites appears associated Attock Slates Attock-Cherat bands base basis brown Bull Cherat chlorite clay colour common composed composition considered contains correlated Cretaceous Davies deposits detailed developed diorites District east epidote exposed extends feet feldspar Formation fossils fractures garnet Geol geology Gilgit gneisses grains granitic green grey Hazara Hornblendic Group Ibid India Indus intrusions iron Jour Khan Khyber latter light limestone Long Lower mainly major Manki Marks Martin Masjid material metamorphic Middle miles minerals minor norites northern occur outcrops Panjab Peshawar Phyllite places plagioclase present probably quartz quartzite Range reef region reported River rocks samples sandstone Schistose schists sericite Shah shale shows Silurian southern Stauffer stratigraphic structure suggests Surv Swat Tahirkheli thick thin Thin Section units Univ Upper Valley various veins village weathered West Pakistan western