By means of analyzing sub-sea crevasse channel depositional mechanism, we established 4 depositional models including fading model, branching model, extreme fan model and affluxion model. 通过分析水下决口水道的沉积机理,建立了渐弱消失型、分支型、末端扇型和汇入型 4种沉积模式;
A crevasse is a deep crack, or fracture, found in an ice sheet or glacier, as opposed to a crevice that forms in rock. Crevasses form as a result of the movement and resulting stress associated with the shear stress generated when two semi-rigid pieces above a plastic substrate have different rates of movement. The resulting intensity of the shear stress causes a breakage along the faces.