Geological Bulletin, Volume 12University of Peshawar, 1979 - Geology |
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Page 15
Biotite occurs as small flakea partly altered to chlorite . Pronouneed oxidation has
effccted thc biotite flakes and in some cases only the pseudomorphs of biotite are
observed . Muscovite is fresh and occurs as very thin and elongate flakes .
Biotite occurs as small flakea partly altered to chlorite . Pronouneed oxidation has
effccted thc biotite flakes and in some cases only the pseudomorphs of biotite are
observed . Muscovite is fresh and occurs as very thin and elongate flakes .
Page 18
identify calcareous material . In some slides it appeats that iron oxide is serving
as a cementing muterial for quartz grains . Calcitc / dolomite cementing material
occurs as a mosaic of anhedral subsequent crystals . Detailed study of the origin
...
identify calcareous material . In some slides it appeats that iron oxide is serving
as a cementing muterial for quartz grains . Calcitc / dolomite cementing material
occurs as a mosaic of anhedral subsequent crystals . Detailed study of the origin
...
Page 24
Muscovite occurs in the form of long thin fresh flakes . On the other hand biotite
occurs as brown pleochroic flakes , mostly altered to chlorite . In upper layers
extensive oxidation has resulted in the complete staining of biotite flakes . In
many ...
Muscovite occurs in the form of long thin fresh flakes . On the other hand biotite
occurs as brown pleochroic flakes , mostly altered to chlorite . In upper layers
extensive oxidation has resulted in the complete staining of biotite flakes . In
many ...
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Contents
1979 No | 1 |
Khewra Gorge Khewra Jehluu District | 11 |
Khewra Gorge Khewra Jehlum District | 21 |
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Common terms and phrases
abundant anhedral appears Baghanwala Formation basal base basin biotite brown Bull calcarenite calcareous calcareous cement calcite Cambrian carbonate carbonate and limonite carbonate minerals Cementing material characterized chlorite circulated clastic clay clear colour common Compactibility constituents contains corroded boundaries crystals cubic currents deposition dominant Early effects environments exposed field formed fossils Geol Geology glauconite important India indicate industries interbeddings intercalations iron oxide Jutana Dolomite KHAN Khewra Gorge laminated layers less limestone limonite maroon material is carbonate matrix medium metamorphism meters mica micaceous minerals noticed observed occurs olive origin Pakistan Peshawar pigmentation places porosity present primary pseudomorphs Punjab quartz grains recrystallized result ripple marks rocks rounded Saline Salt Range sand sandstone sector sedimentary sediments seen shale shallow slides solution strata stratification structures stylolites suggestive texture thick thin bedded Thin Section tion underlying Univ upper various vary warm writers York