AR 1978-79.pdf - Birbal Sahni Institute of Palaeobotany
AR 1978-79.pdf - Birbal Sahni Institute of Palaeobotany
AR 1978-79.pdf - Birbal Sahni Institute of Palaeobotany
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12<br />
4.2.2. A. Compilation <strong>of</strong> geological and palynological<br />
data on the coals <strong>of</strong> Makurn Coalfield was continued. Along<br />
with this the compilations or petrographic data, morphogra·<br />
phic, statistical evaluation <strong>of</strong> petrographic microconstituents,<br />
reAt"ctance study and depositional history <strong>of</strong> coals <strong>of</strong> i\fakum<br />
Coalfield were also taken up.<br />
B. For the first time in India, the maturation studies<br />
<strong>of</strong> organic microconstituents <strong>of</strong> coals and lignites have been<br />
utilized for ranking <strong>of</strong> coal and exploration <strong>of</strong> oil and gas.<br />
A paper on the study has been finalized and submitted for<br />
publication.<br />
4.2.3. Pal;nostratigraphy <strong>of</strong> Tertiary sediments if Lower<br />
Arsam<br />
A. Palynology <strong>of</strong> the Kopili Formation in Xorth Cachar Hills<br />
Ten lithologs showing the stratigraphic position <strong>of</strong> palynological<br />
rock samples from the Kapili Formation were<br />
prepared. r\ rich spore-pollen and micropiankton assemblage<br />
has been recovered from (he Garampani area.<br />
B. P"rynostratigraphy <strong>of</strong> the Jowai-Badarpur Road Section<br />
PalynostratigraphicaI studies are being carried out on<br />
the spore-pollen assemblages recovered from the Paleocene<br />
Miocene strata <strong>of</strong> the Jowai-Badarpur Road Section in order<br />
to establish palynological controls for the identification <strong>of</strong><br />
different levels. Out <strong>of</strong> the 546 palynological samples, 476<br />
samples have yielded rich spore-pollen assemblages. Interesting<br />
palynomorphs have been scanned and photographed.<br />
A geological map <strong>of</strong> the jowai-Badarpur Road Section has<br />
been prepared on 1: 363640 scale. Aba, a manuscript<br />
dealing with the litho5tratigraphy <strong>of</strong> the sediments exposed<br />
in this area has almost been finalized. Part <strong>of</strong> the work has<br />
been submitted<br />
(or publication.