Geological Bulletin, Volume 12University of Peshawar, 1979 - Geology |
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Page 2
Primary Structures a) Stratification. b) Cross-beding. c) Ripple Marks. d) Soft
sediment folding * e) Salt Pseudomorphs ** f) Mud cracks ** Secondary
Structures a) Stylolites * Organic Structures a) Worm Burrows. STRATIFICATION
Stratification ...
Primary Structures a) Stratification. b) Cross-beding. c) Ripple Marks. d) Soft
sediment folding * e) Salt Pseudomorphs ** f) Mud cracks ** Secondary
Structures a) Stylolites * Organic Structures a) Worm Burrows. STRATIFICATION
Stratification ...
Page 8
STYLOLITES. Stylolitcs are the sutured surfaces which develope chiefly parllell to
the bedding and less commonly are inclined to the bedding. These sutured
surfaces are the result of pressure-solution effects. The stylolite seams thus ...
STYLOLITES. Stylolitcs are the sutured surfaces which develope chiefly parllell to
the bedding and less commonly are inclined to the bedding. These sutured
surfaces are the result of pressure-solution effects. The stylolite seams thus ...
Page 9
Since stylolites record iaterstratal solution they are of great significance in
estimating the amouut of rocks dissolved. In this concern thin films of clayey
minerals containing quartz sand and silt grains are of particulate interest. The
concentration ...
Since stylolites record iaterstratal solution they are of great significance in
estimating the amouut of rocks dissolved. In this concern thin films of clayey
minerals containing quartz sand and silt grains are of particulate interest. The
concentration ...
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Contents
and the Baghanwala Formation | 1 |
Khewra Gorge Khewra Jehlutn District | 11 |
Mineral Poliey with special reference | 41 |
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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 clayey cement colour Compactibility corroded boundaries cross-bedding cubic pseudomorphs deposition detrital Dolomitic limestone environments feldspar fossils freely circulated Geology of India Ghundai Sar glauconite granoblastic highly corroded indicate interbeddings intercalations iron oxide iron oxide pigmentation Jehlum KHAN Khewra Gorge Khussak Formation Khyber Agency laminated layers less corroded long shore currents marine water maroon material is carbonate metamorphism mica micaceous mineral sector Minerals are anhedral mud cracks Muscovite 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 siltstone 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