| 武夷-云开中生代沉积盆地演化 |
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| 引用本文： | 唐婷婷,何卫红,王成刚,纪星星,郝奕玮,邹亚锐.武夷-云开中生代沉积盆地演化[J].地球科学,2014,39(8):1140-1154. |
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| 作者姓名： | 唐婷婷 何卫红 王成刚 纪星星 郝奕玮 邹亚锐 |
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| 作者单位： | 1.中国地质大学地质调查研究院，湖北武汉 430074 |
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| 基金项目： | 中国地质调查局项目(Nos.1212010733802,12120113012500) |
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| 摘 要： | 将武夷-云开地层大区分为5个地层区，通过综合分析前人对该地区中生代岩石地层、生物地层、同位素年代学及构造等研究，对研究区中生代沉积盆地类型进行划分，并探讨该区沉积盆地-大地构造演化史.研究区中生代共经历了3个重要演化阶段:早-中三叠世，该区地壳抬升，海平面总体下降，海水向西-西南方向逐渐退出，形成混积陆表海；晚三叠世-早侏罗世，该区发生海侵，形成海陆交互陆表海；中侏罗世-白垩纪，由于受古太平洋板块西北低俯冲的影响，台湾地区形成了一系列俯冲增生杂岩带，内陆地区以政和-大浦断裂为界，西部发育(火山)断陷盆地；东部发育弧内裂陷盆地，晚期形成断陷盆地.
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| 关 键 词： | 武夷-云开 中生代 沉积 构造 演化 |
| 收稿时间： | 2014-03-20 |
Evolution of Mesozoic Sedimentary Basins in Wuyi-Yunkai Area |
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| Abstract: | In order to study the sendimentary basin evolution of the Wuyi-Yunkai area, in this paper the area is divided into 5 stratigraphic regions. Based on the previous studies on the lithostritagraphy combinations, fossil assemblages, isotopic geochronology and tectonics of this area, types of sedimentary basin in the Wuyi-Yunkai area are identified, and their formation and evolution are investigated. The evolutional history of the sedimentary and tectonic features of the study area shows that the basin and structure have experienced three major evolutionary stages in Mesozoic. In the Early-Middle Triassic, the research area entered the marine-continental alternating epicontinental sea stage because of transgressions with the crust uplifting, the main sea level dropping and the sea gradually receding to the west or southwest. In the Middle Jurassic-Cretaceous, a series of subduction-accretionary complex belt formed in Taiwan, and inland areas were bounded by the Zhenghe-Dapu fracture, with fault basin (including volcanoes) developed in the west and its east entering evolutionary stage of intra-arc graben basin whose late stage was fault basin evolution, mainly influenced by the low subduction of the Pacific plate. |
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