中白垩世非海相沟鞭藻化石在世界上极为罕见。

ABSTRACT Non-marine dinoflagellate fossil of middle cretaceous is very rare in the world.

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中白垩世孙宗湾组的沉陷进一步向东侧移，形成了以F1断层为盆缘断层的半地堑；

The subsidence of Sunjiawan episode in Middle Cretaceous are further transferred eastward, and the half-graben defined by the fault F1 was formed.

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来自不同来源的数据，包括保存在海底沉积物中的地球化学证据，都表明晚白垩世的气候非常温和。

Data from diverse sources, including geochemical evidence preserved in seafloor sediments, indicate that the Late Cretaceous climate was very mild.

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