Journal of Geological Society of India (Online archive from Vol 1 to Vol 78)

Rachhpal Singh ¹, J. S. Jamwal ¹, Kuldeep Singh ¹

Affiliations
1 2-3 C/C, Geological Survey of India, Gandhi Nagar, Jammu-180004, IN

Abstract

Systematic geological mapping of an area of about 1000 sq.km.in the Warwan valley by the authors brought out a stratigraphic succession ranging in age from Proterozoic through the Jurassic which is represented in the ascending order by the Proterozoic Salkhala Group and the formations of Palaeozoic Ramsu-Machhal, Lolab, Karihul, Margan, Muth Quartzite, Syringothyris Limestone, Fenestella Shale, Agglomeratic Slate, Panjal Volcanics and Zewan, and Mesozoic Khunamuh, Khrew, Wuyan and Drungam. The Jurassic sequence in the area, designated as the Drumgam Formation, occurs as isolated outliers resting over the upper Triassic rocks with an angular unconformity in Drumgam- Kelnar area. Structurally, the area has experienced polyphase deformation, with atleast three distinct phases of folding, the best example being the Warwan valley Anticline, whose eastern limb is overturned. A pronounced unconformity between the Salkhala (Precambrian) basement and the overlying Palaeozoic-Mesozoic succession occurs in the southern part of the area.

Keywords

Stratigraphy, Structure, Unconformity, Jurassic rocks, Kashmir Himalaya.

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Rachhpal Singh ¹

Affiliations
1 Geological Survey of India, Bachittar Complex, Bye Pass, NH-1A, Chhanni Himmat, Jammu-180015, IN

Abstract

The present work based on systematic geological mapping in the southeastern part of Ladakh and traverse geological mapping in the remaining part of the Ladakh range and adjacent areas has revealed that the Ladakh granitoid complex is composed of rock sequence which is formed by the granitisation of the rocks of volcano-Sedimentary parentage.

Keywords

Ladakh Granitoid Complex, Granitisation, Volcanosedimentary Rocks, Pluton.

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Rachhpal Singh ¹

Affiliations
1 Geological Survey of India, Bachittar Complex, Bye Pass NH- 1 A, Chhanni Himmat, Jammu - 180 015

Abstract

Systematic cum traverse geological mapping of an area of about 15000 sq. km in the Kishtwar region by the author brought out a lithological succession comprising metamorphites (Proterozoic) unconformably overlain by Palaeozoic-Mesozoic Tethyan sediments. The metamorphites of the area have been lithostratigraphically classified in the light of code of stratigraphic nomenclature. Thus, the metamorphic sequence occurring in the area comprises Brama, Dachhin, Padar and Marwah Formations together making up the Kishtwar Group. The existence of the 'Main Central Thrust' and 'Kishtwar Window' is also reviewed.

Keywords

Lithostratigraphy, Structure, Unconformity, Main Central Thrust, Kishtwar Window, Klippe, Jammu & Kashmir Himalaya.

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