How to distinguish between siltstone and mudstone in the field?
Argillaceous siltstone is more sand,The sandy mudstoneThe mudstone is easy to soften after soakingThe main difference is the size of particles and the difference between clay minerals and cement and sand content
The main composition of sandy mudstone is clay mineral, containing a small amount of sandThe fracture of the argillaceous siltstone is more rough than that of the sandy mudstoneHand rub, then silty sandstone sandstone more sensitive,
Argillaceous siltstone is mainly composed of silt and clay minerals
