Geological Bulletin, Volume 12University of Peshawar, 1979 - Geology |
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Page 14
... indicative of their origin from plutonic rocks which were later on subjected to metamor- phism . The presence of feldspar in a very minor amount suggests the derivation of quartz from granite or gneiss or even older 14.
... indicative of their origin from plutonic rocks which were later on subjected to metamor- phism . The presence of feldspar in a very minor amount suggests the derivation of quartz from granite or gneiss or even older 14.
Page 15
... feldspar deminishes with the increase in the geological age of the formation . Subrounded to rounded nature of ( a few coarse ) quartz grains is indicative of the fact that they are of multicycle origin . Low percentage of feldspar is ...
... feldspar deminishes with the increase in the geological age of the formation . Subrounded to rounded nature of ( a few coarse ) quartz grains is indicative of the fact that they are of multicycle origin . Low percentage of feldspar is ...
Page 35
... feldspar are less corroded and rounded than non - clastic . Carbonate and limonite are the cementing materials . Fossils are indistinctive . Association is the stable shelf area of clear warm shallow marine water with abundant ...
... feldspar are less corroded and rounded than non - clastic . Carbonate and limonite are the cementing materials . Fossils are indistinctive . Association is the stable shelf area of clear warm shallow marine water with abundant ...
Contents
and the Baghanwala Formation | 1 |
Khewra Gorge Khewra Jehlum District | 11 |
Khewra Gorge Khewra Jehlum District | 21 |
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Common terms and phrases
anhedral Baghanwala Formation basal basin biotite calcarenite calcareous cement calcilutite texture calcisiltite texture calcite Cambrian carbonate and limonite carbonate matrix carbonate minerals Cementing material characterized by calcarenite chlorite clastic clayey cement colour Compactibility corroded boundaries cross-bedding cubic pseudomorphs deposition detrital Dolomitic limestone environments feldspar fossils freely circulated Geology of India glauconite Grains are subrounded granoblastic highly corroded indicate interbeddings intercalations iron oxide iron oxide pigmentation Jehlum KHAN Khewra Gorge Khyber Agency laminated layers less corroded limestone long shore currents marine water maroon material is carbonate metamorphism meters mica micaceous mineral sector Minerals are anhedral mud cracks non-clastic observed Pakistan Peshawar PETROGRAPHY Plagioclase porosity pseudomorphs Punjab quartz quartz grains recrystallized ripple marks rock texture salt crystals Salt Range sandstone sedimentary rocks sedimentary structures sediments shale slides stable shelf area strata stratification stratigraphic stratigraphic levels stylolites texture is metamorphic thin bedded Thin Section Tobra Formation underlying Jutana Dolomite Univ upper worm burrows