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Gill, G. T. S.
- Heavy Mineral Assemblage of the Siwalik Group of Nepal Himalaya
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Affiliations
1 Centre of Advanced Study in Geology, Panjab University, Chandigarh 160014, IN
1 Centre of Advanced Study in Geology, Panjab University, Chandigarh 160014, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 22, No 5 (1981), Pagination: 220-226Abstract
The heavy mineral assemblage of the Siwalik Group of Nepal Himalaya comprises non-opaque minerals like zircon, tourmaline, rutile, garnet, epidote (including zoisite and clinozoisite), staurolite, kyanile and sillimanite. The opaque minerals include ilmenite, magnetite, hematite and limonite. Staurolite serves as the marker mineral for the Lower Siwalik Formation, kyanite for the Middle Siwalik Formation and sillimanite for the Upper Siwalik Formation.The over all heavy mineral assemblage and the mineralogical and textural properties of the various mineral species are suggestive of the derivation of a major part of the Siwalik sediments from metamorphic, acid and intermediate crystalline rocks.
- Clay Mineralogy of the Siwalik Group of Simla Hills, Northwestern Himalaya
Abstract Views :198 |
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Authors
Affiliations
1 Centre of Advanced Study in Geology, Panjab University, Chandigarh 160014, IN
1 Centre of Advanced Study in Geology, Panjab University, Chandigarh 160014, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 24, No 3 (1983), Pagination: 159-165Abstract
Clay mineralogy of the Siwalik Group of Simla Hills was worked out by X-ray diffraction technique. The mineral assemblage comprises kaolinite, illite, chlorite, vermiculite, montmorillonite and mixed-layers. The source rocks bearing feldspars, micas and ferrornagnesian minerals suffered chemical decomposition and mechanical fragmentation in temperate climate. The sediments were deposited in rapidly subsiding fresh-water basins. Terrestrial and (or diagenetic origin has been assigned to the various clay minerals.- Heavy Mineral Zones in the Fluvial Environment - Ghaggar River, Haryana
Abstract Views :201 |
PDF Views:6
Authors
Affiliations
1 Centre of Advanced Study in Geology, Panjab University, Chandigarh-160 014, IN
1 Centre of Advanced Study in Geology, Panjab University, Chandigarh-160 014, IN