Chapter 12
Active Tectonics–Climate Interaction
in the Structural Depo-Centres of Central
Indian Tectonic Zone (CITZ)
Snigdha Ghatak and Mriganka Ghatak
Abstract The Late Cenozoic period in the Central Indian Tectonic Zone (CITZ)
marked by several episodes of crustal adjustments resulted in the development of
various landforms, drainage anomalies and pedosedimentary successions. The fault
bound tectonic basins viz. Tapi, Purna and Narmada flanking the Satpura ranges
hold tell-tale evidence of varying climatic and tectonic regimes. This chapter sum-
marizes data from various literature, the Active Fault Mapping programme in CITZ
and the fluvial archives to unravel the role of the tectonics-climate feedback system
in shaping landscape architecture in and around the structurally controlled Quater-
nary River basins of Purna, Tapi and Narmada. The cumulative interactions between
the deformational events and ongoing surface processes are best witnessed by the
marker horizons, anomalous river courses, basin geometry, hill slopes and elevation
characteristics and the way these have influenced its depositional environment. The
study suggests that repeated reactivation of older crustal-scale faults under different
stress regimes have been a guiding factor in landform evolution in CITZ. While
tectonics holds the primary key to the overall landscape development and sedimen-
tation, peninsular climatic or microclimatic variations have equally been significant
as palaeo-climatic proxies mimic all India monsoon scenarios.
Keywords Cenozoic period · Sedimentary basins · Soil chronostratigraphy ·
Drainage anomalies · Climate amelioration
Introduction
The tectonic activity in the Cenozoic period of Earth’s history has contributed to the
modification of the geography of Asia through the collision between the Indian and
Eurasian plates resulting in the formation of the highest (5 km and above msl)
mountain chain and most extensive plateau representing the present-day greatest
S. Ghatak (*) · M. Ghatak
Geological Survey of India, Kolkata, West Bengal, India
e-mail: snigdha.ghatak.gsi@gov.in
© The Author(s), under exclusive license to Springer Nature Switzerland AG 2022
N. Khare (ed.), Science, Policies and Conflicts of Climate Change, Springer Climate,
https://doi.org/10.1007/978-3-031-16254-1_12
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