1991-92 - Birbal Sahni Institute of Palaeobotany

BSIPbeen observed tijat the coals are rich in trimacerite and of mixed type, indicatinginferior quality for selective utilization. Processing, preparation of particulatepellets, grinding and polishing of about 50 bore core samples from the PachwaraCoalfield have been carried out.B.D.Singh and B.K.MisraProgramme 2.10 ,Pulynology of the Gondwana Sequence inSatpura BasinObjective , To study palynostratigraphy, biozonation, palaeoecology,palaeoenvironment, correlation of variousstrata in the central part of the basinPalynoassemblage ana lysed from Bhonpar Section (Khamtara area), Katni,Madhya Pradesh, contains Cicatricosisporites, Coptospora, Lametatriletes,Callispora, Boseisporites, Contignisporites, lschyosporites, Phyllocladidites, etc. Theassemblage has lhe prominence of Podocarpidites followed by Callialasporites andAraucariacites.It is comparable to Parsapani palynoOora of Sat pur a Basin indicatingan Early Cretaceous age.PramodKumarProgrummeObjective2.ll: PalynoOoral Patterns and Boundary Demarcationsin Gondwana Sequence ofGodavari Graben,To standardise palynoflora from different formationsof Gondwana Sequence, To recognise biozones having stratigraphical significance,To demarcate time boundaries with special referenceto PITr boundary,To decipher the nature and significance of evolutionof various palynoflorasPalynoOoral patterns studied in bore-holes GS-I,2,3 and 4 from Sattupalliarea have shown the presence of Late Permian palynoassemblages. The assemblageis characterised by the presence of striate-disaccates. In bore-hole GS-lStriasulcites is high at 99.25 m while this association is present at 371 m inbore-hole GS-2. Presence of Lundbladispora, Falcisporites, Crescentispollenites,Corisaccites, Guttulapollenites, though rare, shows younger aspect. In bore-holeGS-3 (46-74 m) and GS-4 (181-230 m) striate disaccates and Densipollenites associationis younger than the Striasulcites assemblage. The palynological successionstudied in bore-hole GAG-l from Ainapalli-Gompana area in Chintalpudi subbasinshows the presence of Talchir, Karharbari, Barakar and Raniganj equivalentpalynoassemblages. The coal seams present at 27 m shows Late Permian palynoassemblage.Suresh C. Srivastava and Neerja Jha20Palynological succession studied in five bore-cores GM-3,4,5, 8 and 444 re-