A History of Agriculture in India v1.c7.19

v1.c7.19

Below the Himalayas are the Siwalik Hills, extending from Jammu in the west to Assam in the east. The Siwalik Hills are mainly river deposits of the middle Miocene to the lower Pleistocene Age, folded into arches (anticlines) and troughs (synclines). Many of the anticlines have been broken by faults—dislocations due to the slipping of the rocks along a plane of fracture (fault plane). The fault planes steeply sloping into the hills have given rise to steep scarps facing the plains.