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 />
PROJECT 6<br />
Programme 6.1<br />
BIOSTRATIGRAPHY AND PALYNOFACIES OF<br />
PETROLIFEROUS BASINS OF EAST INDIA<br />
Tertiary floral history <strong>of</strong> north-east India<br />
R.C.<br />
Mehrotra<br />
About 30 fossil woods were investigated from the Neogene <strong>of</strong> Arunachal Pradesh<br />
and Meghalaya. Out <strong>of</strong> them, 10 seem to be new and their study is under progress.<br />
About 100 fossil leaves from Tura Formation <strong>of</strong> Garo Hills, Meghalaya were cleared<br />
and photographed. Their study is also under progress.<br />
Programme 6.6 Palynostratigraphy <strong>of</strong> the Tertiary sediments <strong>of</strong> Mikir and<br />
North Cachar Hills, Assam<br />
Madhav<br />
Kumar<br />
The palynological analyses <strong>of</strong> rocks from Bhuban and Bokabil formations<br />
exposed in Lumding-Haflong Road, Maibong and Bara Langpher River sections were<br />
done. The palyn<strong>of</strong>lora constituted din<strong>of</strong>lagellates, fungal fruiting bodies, pteridophytic<br />
spores, gymnosperm and angiosperm pollen grains. Poorly-preserved Permian saccate<br />
grains were also recorded. Din<strong>of</strong>lagellates are absent in Bokabil Formation. The Miocene<br />
palynotaxa belong to Microthyriaceae, Parkeriaceae, Polypodiaceae, Pteridaceae,<br />
Arecaceae and Pinaceae. The palyn<strong>of</strong>loral assemblage suggests subtropical vegetation.<br />
Programme 6.7 : Palynostratigraphy <strong>of</strong> Barail sediments in Upper Assam<br />
B.D. Mandaokar<br />
Coaliferous samples (30) from Tikak Parbat Formation, Tipong Colliery, Makum<br />
Coalficld were macerated for spore and pollen grains. The recovered palynoassemblage<br />
is rather poor in quality as well as quantity. The genera Striatriletes and<br />
Polypodiaceaesporites are predominant. The recovered tropical to subtropical<br />
palynoassemblage is comparable to other well known Oligocene marker palyn<strong>of</strong>ossils,<br />
viz., Crassoretitriletes, Trisyncolpites, Polyadopollenites and Bombacacidites.<br />
A report on Tertiary plants and animal megafossils from Arunachal Pradesh<br />
and a fossil wood <strong>of</strong> Duabanga from Tipam sandstone in Tinsukia District, Assam<br />
have been worked out.<br />
Visited north-eastern India and collected Tertiary rock samples from deep mine<br />
sections, Tipong Colliery (Assam) as well as outcrop sections from Namchik-Namphuk<br />
Coalfield (Arunachal Pradesh) and Nazira Coalfield (Nagai and).<br />
Programme 6.8<br />
G.K.<br />
Trivedi<br />
Palynostratigraphy <strong>of</strong> the Kopili Formation <strong>of</strong> Khasi and<br />
Jaintia Hills, Meghalaya<br />
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