This study was supported by grants from the National Science and Technology Major Projects(No.2016ZX05024-002-007);the CNOOC Project(No.CCL2020TJ X0NST1271).
Paleosalinity is vital for the paleoenvironmental reconstruction and affects the formation of source rock.The lower-middle sections of the third member of Eocene Shahejie formation(Es3M-L)constitute the most important...