• -柳粉属-粉属组合,属新世-早新世

    Quercoidites - Saliaxipollenites- Fraxinoipollenits assemblage, which may belong to Late Eocene-Early Oligocene.

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  • 会聚构造型式以对冲覆式为主要类型形成时期新世—渐新世

    The main patterns of the convergent structure are the ramp type and the superimposed one. And their forming periods are Late Eocene Oligoecne.

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  • 两个支地槽”主要褶皱时代始新世之交,以勐腊及其相当层位之下区域性巨大不整合标志。

    The principal fold age of the two "Indosinian geosynclines" is between the Middle and Late Eocene, which is marked by the regional flagrant unconformity below the Mengla Group and equivalent horizons.

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  • 白垩期—始新世火山岛弧向东移动,东海陆架盆地变为弧后盆地。

    During late late Cretaceous-Eocene, volcanic island arc moved eastward and the east China Sea shelf basin was turned into a back-arc basin.

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  • 酒泉盆地普遍发育白垩世-始新世的不整面合,期构造变形花海地区表现尤为明显

    The late Cretaceous-Eocene unconformity is widely developed in the Jiuquan Basin, especially in Huahai area where the tectonic deformation is very prominent.

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  • 印度板块上向冲,导致特提斯在始新世关闭

    Since the beginning of the upper Triassic epoch, the Indian plate upthrusted to the north over the Tethys oceanic crust and led to the closure of the Tethys in Eocene epoch.

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  • 简单剪切发生白垩—早始新世,其动力与太平洋板块俯冲带后撤、太平洋板块与欧亚板块之间汇聚速率降低以及先存北倾缝合带等密切相关

    The simple shear extension mainly occurred in late Cretaceous-Early Paleogene, related to slab roll back of Pacific plate, decreasing Paleogene Pacific-Eurasia convergence rate and...

    youdao

  • 简单剪切发生白垩—早始新世,其动力与太平洋板块俯冲带后撤、太平洋板块与欧亚板块之间汇聚速率降低以及先存北倾缝合带等密切相关

    The simple shear extension mainly occurred in late Cretaceous-Early Paleogene, related to slab roll back of Pacific plate, decreasing Paleogene Pacific-Eurasia convergence rate and...

    youdao

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