Based on available data, the study on regional structure, sedimentary reservoir and source rock characteristics shows that the basins in south china sea had experienced sedimentary evolution in faulting period and depression period, deposited thick cenozoic formation, upwardly developed alluvial fan facies, river - lake facies coastal swamp facies coastal facies, neritic facies and bathyal deposit system, regionally had 3 source rocks of eocene, oligocene and miocene, 3 reservoirs of pre - cenozoic basement buried bill, oligocene sandstone and miocene reef, with pliocene and pleistocene neritic facies and bathyal shale as regional caprock
Figure 5. shear and bulk modulus relation for sandstone and weakly cemented sands
A case study of a modern subsided column formed in coal measures sandstone
Biogas in commercial size existed in sedimentary basin which has high deposition velocity and low geothermal gradient and shale, coalbed or compacted sandstone in unconventional environments
Sandstone and conglomerate are the consolidated equivalent of sand and gravel.