What is Meant By Geosyncline?

Answer: Geosyncline is a linear trough of subsidence in the Earth’s crust that accumulates massive amounts of sediment. The filling of a geosyncline with thousands or tens of thousands of feet of sediment is accompanied by folding, crumpling, and faulting the deposits in the late stages of Deposition. 

The history of a particular geosyncline is generally completed by the intrusion of crystalline igneous rock and regional uplift along the axis of the trough, which is thus transformed into a belt of folded mountains. 

Geosyncline is a linear trough of subsidence in the Earth’s crust that accumulates massive amounts of sediment. The filling of a geosyncline with thousands or tens of thousands of feet of sediment is accompanied by folding, crumpling, and faulting of the deposits in the late stages of deposition.