This document discusses different types of sedimentary rocks including clastic sedimentary rocks like breccia, conglomerate, sandstone, siltstone and shale formed from weathered debris. It also discusses chemical sedimentary rocks like limestone, evaporites including rock salt and gypsum, chert and coal. Finally, it mentions several sedimentary structures including cross bedded sandstone, graded bedding, mud cracks, ripple marks and trace fossils.