Definitions for "Geosyncline"
A major trough or downwarp of the Earth's crust, in which great thicknesses of sedimentary and/or volcanic rocks have accumulated.
A major downwarp in the Earth's crust, usually more than 1000 kilometers in length, in which sediment accumulate to thicknesses of many kilometers. The sediments may eventually be deformed and metamorphosed during a mountain-building episode.
continental margin downwarping in the earth's crust that has seen sedimentation and volcanic activity.
Keywords:  geocline, old, term
old term for "geocline".