Suchana Taral

Pondicherry University

Suchana Taral, Assistant Professor at Pondicherry University, has research interests in stratigraphy, sedimentology, ichnology, and basin analysis. Her Ph.D. work was on the large-scale variation in the depositional environment of the Siwalik Foreland Basin using field-based physical sedimentology, petrography, and ichnology. Her work on the eastern Himalayan Foreland Basin reveals the interaction between marine and fluvial processes controlled by global sea level changes and tectonics of the orogen that is entirely different from the traditional interpretation of fluvial-climate interaction. Her post-doctoral work in IIT Kharagpur on the Gondwana basin of central India reveals the animal-sediment interaction in a semi-arid climate setting of a continental rift basin. Now she is working on the Indo-Myanmar Range and Assam Basin to explore the current source to sink pathways of the Himalayan-Tibet derived sediments in collaboration with a few European institutes. She was selected as a Young Associate of the Indian Academy of Sciences in 2022.

Suchana Taral

Lectures by Fellows/Associates

A Jayaraman, Bangalore University, Bengaluru

Source-to-sink pathway of the Himalayan sediments: new evidence from the Eastern Himalayan Foreland

The Mio-Pleistocene Siwalik rocks occur almost continuously along the southern periphery of the Himalayan mountain chain due to the Indo-Eurasian continent-continent plate collision. Previous studies indicated sedimentation in the west-central part of the Siwalik Foreland Basin (SFB) dominated by large transverse megafan systems. However, transverse drainage alone cannot trace the sediment transfer pathway from the orogenic hinterland to its eventual sink in deep marine Bengal Fan (BF). In this talk, I propose a new model for the evolution of the eastern foreland basin, taking into account the hierarchical stratigraphic response to eustatic and tectonic forcing. The model delineates a mosaic of the linked sedimentary system and proposes a realistic sediment transfer pathway from the Himalayan hinterland to the deep marine BF.

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