Ptygmatic fold refers to intestine-shaped and small flow fold formed by rock deformation under the high plastic state.The ptygmatic fold of ....
The drag fold,is also called traction fold,is a series of smallunsymmetrical folds,which formed when by the force couple caused interbedding ....
During thd movement of various freezed gobbets in glacier,the Gravel and gobbet exist scratches in the polished surface of rocks are called ....
The moraine clay boulder profile at Matou belongs to Dagu glaciation of 1.10 to 0.9 million years ago. There is a residual laterite under the ....
Tik Tok
Tik Tok
