Informatics Publishing Limited

A. P. Tewari ¹, P. K. Swain ¹, Chhaya Sharma ²

Affiliations
1 311, Sector 7A. Chandigarh, IN
2 Birbal Sahni Institute of Palaeobotany, Lucknow, IN

Abstract

During the course of clay investigation near Kalidhang, District Sirmur, Himachal Pradesh, some well preserved plant leaves were found in the varve type clays and a sample of it was also analysed for pollen studies. This note records interesting pollens of Pinus roxburghie. Gramineae, Oleaceae Quercus etc., including an abnorma13-winged pollen of Pinus and a large sized Gramineae pollen.

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P. K. Swain ¹

Affiliations
1 House No. 2321, Sector 22-C, Chandigarh 160017, IN

Abstract

The Kalidhang clays were deposited in an elongated lake covering 0.17 km² area formed due to a landslide in the Milkan drainage basin. The deposition took place mainly by fluvial agencies under humid climate during the late Quaternary period. The presence of 145 distinct couplets indicates that sedimentation continued for about 150 years.

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S. S. Ameta ¹, P. K. Swain ²

Affiliations
1 Geological Survey of India, B-320, Sector B, Mahanagar, Lucknow 226 006, IN
2 SCO, 98-100, Sector 17C, Chandigarh 160 017, IN

Abstract

The glacial and periglacial region of the Jorya, Janapa, Naradu and Tumur glaciers shows Alpine sculptures like horn, cirques, 'U' troughs, serrated ridges, hanging glaciers, moraines, crevasses and glacial tables. 1 to 3km recession and 150m to 120m vertical shrinkage are noticed in these glaciers. Floor of cirques lies between 4800 and 4900m height a.s.1. suggesting active orographic firn line at a height of 5000m a.s.1. at the time of formation of the cirques. Evolution of the landforms took place in three stages: i) advent of the glacial climate, ii) advancement of the glaciers and iii) active deglaciation period.

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A. P. Tewari ¹, P. K. Swain ², N. Awasthi ³

Affiliations
1 House No. 311, Sector 7A, Chandigarh 160007, IN
2 House No. 2321, Sector 22C, Chandigarh 160022, IN
3 Birbal Sahni Institute of Palaeobotany, Lucknow 226007, IN

Abstract

This note records some Prunus sp., Mallotus philippinensis Muell, and Celtis sp. from Kalidhang in district Sirmur, Himachal Pradesh. These plant fossils were found embedded in varve like clay around Kalidhang during the course of the field investigation in 1975-76. The geological set-up and the plant assemblage indicate a sub-Recent age for the clay beds.

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