To decipher the origin of oxygen-deficient shelf deposits is significant for tracing the distributions of marine hydrocarbon source rocks and interpreting the evolution of depositional environments.

• 摘要探讨陆棚环境缺氧沉积的成因，对查明海相优质烃源岩时空分布、恢复地史时期古环境演化具有重要意义。