Geological Bulletin, Volume 12University of Peshawar, 1979 - Geology |
From inside the book
Results 1-3 of 13
Page 12
Coating of the clastic grains by iron oxide is common, but abundant in the upper
part. It is because of this iron oxide coating that the thin sections, cut from field
samples, from the upper part appear brownish-red in colour. Carbonates and
clay ...
Coating of the clastic grains by iron oxide is common, but abundant in the upper
part. It is because of this iron oxide coating that the thin sections, cut from field
samples, from the upper part appear brownish-red in colour. Carbonates and
clay ...
Page 13
This resulted in the removal of carbonates and only clastic quartz grains were left.
Presence of clay was also confirmed by this process. In rare cases iron oxide was
observed as an important cementing material instead of calcareous cement.
This resulted in the removal of carbonates and only clastic quartz grains were left.
Presence of clay was also confirmed by this process. In rare cases iron oxide was
observed as an important cementing material instead of calcareous cement.
Page 27
Shale, maroon, very fine grained, thinly bedded, abundant iron coating
calcareous and clayey cement Calcareous sandstone at ... Sandstone,
brownishred, fine grained, quartz grains subangular, thin bedded, micaceous,
abundant iron oxide ...
Shale, maroon, very fine grained, thinly bedded, abundant iron coating
calcareous and clayey cement Calcareous sandstone at ... Sandstone,
brownishred, fine grained, quartz grains subangular, thin bedded, micaceous,
abundant iron oxide ...
What people are saying - Write a review
We haven't found any reviews in the usual places.
Contents
and the Baghanwala Formation | 1 |
Khewra Gorge Khewra Jehlutn District | 11 |
Mineral Poliey with special reference | 41 |
Other editions - View all
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