Abstract
Palynological analysis of the Gondwana Sequence including five Intertrappean beds in a core from the Borehole RJNE-32, Rajmahal Basin, India has revealed the presence of rich and distinctive assemblages of Late Permian, Triassic, and Early Cretaceous ages. This is concerned with a detailed palynological analysis of Infratrappean and Intertrappean beds only. The appearance of early angiospermous pollen is recorded from the upper levels of the Lowermost (First) Intertrappean deposit. 40Ar/39Ar analysis of the lowermost (1) and uppermost (6) traps cored indicates that the volcanism began at c. 118 Ma and was over by c. 116 Ma in this region. Thus, the tagging of radiometric dates with precisely located palynoassemblages provides important tie-points in Cretaceous stratigraphy.
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