CHARACTERISTICS OF NAPPE STRUCTURE IN THE SOUTHWEST FUJIAN PROVINCE
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摘要: 闽西南地区推覆(滑脱)构造广泛发育,可划分为5种类型:发育于上古生界—中生界下三叠统溪口组中的拆离(滑脱)构造;形成于印支期的拆离(滑脱)构造,后受燕山早期及后期的褶皱作用形成褶皱拆离构造;印支期及燕山早期的中深层次逆冲推覆构造;燕山早期和晚期的浅层次逆冲推覆构造;分布于燕山早期浅层次逆冲推覆构造原地岩系之中的浅层次褶皱逆冲推覆构造,其中燕山早期中深层次逆冲推覆构造规模最大。Abstract: Nappe structure is well developed in the southwest Fujian province.It can be classified into 5 types,including: decoupling(slippling) structure generated from the Upper Paleozoic to the Xikou Formation of the Lower Triassic of the Mesozoic;decoupling(slipping) structure generated during the Indosinian epoch and developed to folding and decoupling structure under the influence of folding effect during the Yanshan epoch;intermediate depth thrust nappe structure generated in the Indosinian and early Yanshan epochs;shallow thrust nappe structure generated in the Yanshan epoch,shallow fold thrust nappe structure distributed in the autochthonous rock series of shallow thrust nappe structure of the early Yanshan epoch,among which the intermediate depth thrust nappe structure of the early Yanshan epoch is the biggest.
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Key words:
- the Indosinian epoch /
- the Yanshan epoch /
- nappe structure /
- southwest Fujian /
- China
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