This paper reports a Lower Triassic inorganic carbon isotope profile from the North Ping-dingshan Section in Chaohu, Anhui Province, China, which was situated i
The Mesoproterozoic Wumishan Formation ((1 310±20) Ma-(1 207±10) Ma) in Jixian, Tianjin represents a succession of 3 300 meter thick carbonate strata
Petroleum migration process of Bamianhe oilfield of Dongying depression, East China is evaluated on the basis of our detailed work on geochemistry of the crude