Geological Bulletin, Volume 12University of Peshawar, 1979 - Geology |
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Page 2
... Mud cracks ** Secondary Structures a ) Stylolites Organic Structures a ) Worm Burrows . STRATIFICATION Stratification is the most fundamental and characteristic structure of the sedimentary rocks . The individual layers formed as a ...
... Mud cracks ** Secondary Structures a ) Stylolites Organic Structures a ) Worm Burrows . STRATIFICATION Stratification is the most fundamental and characteristic structure of the sedimentary rocks . The individual layers formed as a ...
Page 7
... MUD CRACKS Mud cracks , typical of argillaceous strata , are an important criterion for the determination of top and bottom of lhe strata . Presence of mud cracks in the Baghanwala Formation indicates that the sediments were exposed to ...
... MUD CRACKS Mud cracks , typical of argillaceous strata , are an important criterion for the determination of top and bottom of lhe strata . Presence of mud cracks in the Baghanwala Formation indicates that the sediments were exposed to ...
Page 25
... mud cracks within the Baghan- wala Formation also supports this conclusion . Total thickness of the Baghanwala Formation , measured by the writers , on the eastern side of the Khewra Gorge is about 33 meters . The detailed description ...
... mud cracks within the Baghan- wala Formation also supports this conclusion . Total thickness of the Baghanwala Formation , measured by the writers , on the eastern side of the Khewra Gorge is about 33 meters . The detailed description ...
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