Geological Bulletin, Volume 12University of Peshawar, 1979 - Geology |
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Page 13
... grain relationship of the framework and the matrix . Framework here is dominantly formed by the monocrystalline and a few polycrystalline quartz grains with some carbonate grains and mica flakes . Matrix is exclusively composed of ...
... grain relationship of the framework and the matrix . Framework here is dominantly formed by the monocrystalline and a few polycrystalline quartz grains with some carbonate grains and mica flakes . Matrix is exclusively composed of ...
Page 14
... quartz grains . Majority of the carbonate grains are blebshaped , and vary from very fine to medium grained size . In two slides the carbonate minerals are more than 90 percent and are thus pure chemical in orlgin . It is also observed ...
... quartz grains . Majority of the carbonate grains are blebshaped , and vary from very fine to medium grained size . In two slides the carbonate minerals are more than 90 percent and are thus pure chemical in orlgin . It is also observed ...
Page 15
... quartz grains is indicative of the fact that they are of multicycle origin . Low percentage of feldspar is also suggestive of the same fact . Staining of quartz grains by iron oxide is a common feature . However , in many slides the ...
... quartz grains is indicative of the fact that they are of multicycle origin . Low percentage of feldspar is also suggestive of the same fact . Staining of quartz grains by iron oxide is a common feature . However , in many slides the ...
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