Origin of synclineback-formation from synclinal
Geol. a down fold in stratified rocks from whose central axis the beds rise upward and outward in opposite directions
A fold in rocks in which the rock layers dip inward from both sides toward a central line.
Origin of synclineBack-formation from synclinal
A fold of rock layers that slope upward on both sides of a common low point. Synclines form when rocks are compressed by plate-tectonic forces. They can be as small as the side of a cliff or as large as an entire valley.
- Hence the anticline noses out to the north and the syncline to the south.
- Charniere anticlinale), the corresponding part of a syncline being the "trough-core" or "base," Y, fig.
- The group of heights of South Wales, running on the whole from west to east, marks the outcrops of the Old Red Sandstone and Carboniferous strata which lie within a vast syncline of the Silurian rocks.
- Where they dip away from the axis of movement the structure is termed an anticline or anticlinal fold; where they dip towards the axis, it is a syncline or synclinal fold.
- (I-17) thrown into an anticline (AA') and syncline (BB').