Geological objects boundary data is the base data for the animate simulating of oil pool numeric, basin simulate and oil gas distribution prediction etc.

地质体边界数据是油藏数值动态模拟、盆地模拟、油气分布预测等应用的基础数据。

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Sharp geochemical change belt reflects the geochemical characteristics of block margin of craton and so on, which reveals the boundary location more effective than geological survey.

地球化学急变带反映了克拉通边缘的地球化学特征，它可比地质观察更有效地揭示克拉通边界的位置。

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Hydrocarbon vertical micro migration is a complicated geological geochemical process. It is strictly controlled by boundary condition, possesses stages in geological history.

烃类垂向运移是一个复杂的地质地球化学过程，严格受边界条件控制，在地质历史上具有一定的阶段性。

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The question is one of the most hotly contested in palaeontology and revolves around an apparent gap in the fossil record immediately prior to the K-T boundary - the distinct layer of geological sediments separating the Cretaceous and Tertiary periods, and associated with a massive asteroid impact and global extinction event.

BBC: Closing the 'three metre gap'