The oolitic shoals of the Triassic carbonate platform margin in the Yudongzi(鱼洞子) outcrop of Erlangmiao(二郎庙) area in the northwestern Sichuan(四川) basin
One of the most important tasks of evaluating natural resources of petroliferous basins is to determine the organic matter abundance of source rocks in the basi
Isolated NE-SW stretching the Helan Mountain massif, separating the temperate grassland of the Ordos plateau from the Tenggeli Desert, is a key position of stud