Geological Bulletin, Volume 12University of Peshawar, 1979 - Geology |
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Page 13
... sand grains vary from very fine to coarse grained sand size particles of Wentworth Scale ( 1914 ) . However , majority of the sandstones are made up of fine sand grains . Fractured quartz grains are common . Due to the abundance of iron ...
... sand grains vary from very fine to coarse grained sand size particles of Wentworth Scale ( 1914 ) . However , majority of the sandstones are made up of fine sand grains . Fractured quartz grains are common . Due to the abundance of iron ...
Page 26
... by redepesition of dolomite pebbles , channel sand at one place , cubic pseu- domorphs common , iron leaching common , abundantly calareous and clayey ... ... 0 83 ... ... 2 97 Shale , maroon , very fine grained , thinly bedded 26.
... by redepesition of dolomite pebbles , channel sand at one place , cubic pseu- domorphs common , iron leaching common , abundantly calareous and clayey ... ... 0 83 ... ... 2 97 Shale , maroon , very fine grained , thinly bedded 26.
Page 34
... Sand particles are much rounded than non - clastic . Cementing material is carbonate and quartz . Fragments of Favosites , Cladopora , and coiumnals of crinoid are present . Association is the shallow , clear , freely circulated sea ...
... Sand particles are much rounded than non - clastic . Cementing material is carbonate and quartz . Fragments of Favosites , Cladopora , and coiumnals of crinoid are present . Association is the shallow , clear , freely circulated sea ...
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