1996-97 - Birbal Sahni Institute of Palaeobotany
1996-97 - Birbal Sahni Institute of Palaeobotany
1996-97 - Birbal Sahni Institute of Palaeobotany
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<strong>1996</strong>-<strong>97</strong><br />
Samples (45) were macerated from Disang and Disang-Barail contact rocks<br />
exposed around Kohima, Nagaland for DOM studies. Only 15 samples yielded structured<br />
terrestrial, biodegraded terrestrial/aqueous and amorphous organic matters.<br />
Shaila Chandra [& G.M. Bhat (Jammu)]<br />
Study <strong>of</strong> plant megafossil specimens from Margan Top locality in Anantnag<br />
District, Kashmir was continued. The plant fossil study indicates Early Carboniferous<br />
age instead <strong>of</strong> ? Ordovician as the flora contains typical plant fossils.<br />
Shaila Chandra [& Sun Keqin (Beijing, China)]<br />
Evolution and comparison <strong>of</strong> the Gondwana and Cathaysia floras were carried<br />
out and finalized.<br />
Distribution, evolution and extinction <strong>of</strong> global Carboniferous flora was studied<br />
and a paper finalized.<br />
Chhaya Sharma [& B.S. Kotlia (Nainital)]<br />
Thirty samples from Wadda Lake (Sections I-C, I-E and PN) covering a time<br />
span <strong>of</strong> 28,000 yrs B.P. have been macerated for pollen analysis. Study <strong>of</strong> 8 samples<br />
has revealed the dominance <strong>of</strong> non-arboreals over arboreals. Arboreals are represented<br />
by low values <strong>of</strong> Quercus, Alnus, Juglans, Larix, Ulmus, Pinus, etc. Non-arboreals are<br />
dominated by Poaceae, Cyperaceae, Cheno/Ams, Ranunculaceae, Urticaceae and low<br />
values <strong>of</strong> Asteraceae, Rosaceae, etc. The study <strong>of</strong> remaining samples is in progress.<br />
A. Bhattacharyya (& J.T. Gergan, Dehradun)<br />
Eighty tree cores from 40 trees <strong>of</strong> Abies pindrow growing near timber line<br />
around Dokriani-Bamak glacier have been dated. The age <strong>of</strong> most <strong>of</strong> these trees extends<br />
back to 1618 AD. However, the age <strong>of</strong> two trees dates back to 1493 AD. The chronology<br />
preparation and climatic reconstruction are in progress to correlate with glacier<br />
fluctuations.<br />
Six samples from 9.0 m deep paleolacustrine deposit near the snout <strong>of</strong> Dokriani<br />
Bamak glacier have been macerated for pollen analyses. Detailed pollen analyses are<br />
in progress.<br />
A. Bhattacharyya (& B.S. Kotlia, Nainital)<br />
Eight samples from exposed lacustrine deposit from Lamaruryu palaeo lake,<br />
Ladakh have been macerated for pollen analyses. Samples have been found very poor<br />
in pollen contents. Detailed pollen analyses are in progress.<br />
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