| 中国中生代沉积盆地演化 |
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| 引用本文： | 骆满生,卢隆桥,贾建,王盛栋,徐亚东,何卫红.中国中生代沉积盆地演化[J].地球科学,2014,39(8):954-976. |
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| 作者姓名： | 骆满生 卢隆桥 贾建 王盛栋 徐亚东 何卫红 |
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| 作者单位： | 1.中国地质大学生物地质与环境地质国家重点实验室, 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： | 在综合分析中生代早-中三叠世、晚三叠世-早白垩世、晚白垩世-白垩纪3个时段中国沉积盆地分布、充填序列、岩相古地理和构造古地理的基础上, 建立了中国中生代沉积盆地的时空演化, 并探讨了中国中生代沉积盆地的时空演化与中生代构造运动的响应关系, 认为: (1)随着亚洲洋俯冲消亡及天山-兴蒙造山系形成, 中国北方地区总体处于古亚洲洋消亡以后, 陆块汇聚碰撞背景, 西北地区盆山格局基本定型, 南部古特提斯洋的双向俯冲消减, 在北羌塘-三江多岛弧盆系中的一系列弧后洋盆相继俯冲消亡; (2)晚三叠世的"印支运动"使古亚洲陆最终固结并向外增生, 中国己经基本形成了南海北陆的分布格局, 绝大部分地区进入陆内演化阶段.印支期以后, 华南中部上隆, 隔开了西部的古地中海域和东部的古太平洋海域; (3)中侏罗世以来, 在古太平洋板块向欧亚大陆俯冲的影响下, 整个中国东部卷入滨太平洋构造域, 西太平洋型活动大陆边缘形成.中国东北大部分地区为弧内裂陷(火山沉积)盆地; 华北-阿拉善陆块东西分化, 中西部主要发育压陷盆地或断陷盆地或坳陷盆地, 东部则形成与古太平洋板块俯冲有关的陆缘岩浆弧弧内裂陷盆地; 华南则以雪峰山为界, 东部广泛发育与陆缘岩浆弧演化相关的弧内裂陷盆地, 西侧则发育陆内大型压陷盆地、断陷盆地或断坳盆地.中国西南则仍然为多岛洋弧盆系格局.
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| 关 键 词： | 中生代 沉积 构造 盆地演化 |
| 收稿时间： | 2014-06-28 |
Evolution of Sedimentary Basins in China during Mesozoic |
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| Abstract: | Based on the comprehensive analysis of the sedimentary basin distribution, filling sequences, lithofacies palaeogeography in the three periods of T1-2, T3-J1, J2-K in Mesozoic, the spatiotemporal revolution characteristics of the sedimentary basins during Mesozoic are summarized, the response relationship between the tectonic movement and the space-time revolution of the sedimentary basins during Mesozoic are discussed. And the conclusions as follows are drawn. (1) Along with the subduction of the Paleo-Asia ocean and the forming of the Tianshan-Xingmeng orogenic belt, the northern China was generally in a stage of landmass collision, and the basin-mountain pattern of northwest area also basically finalizes. In the south, a series of back arc oceanic basins in the north Qiangtang-Sanjiang archipelagic arc-basin system died off successively results from the two-way subduction of the Paleo-Tethys ocean. (2)The Indosinian movement in Late Triassic made the Paleo-Asia come to final solidification and outward expansion, and large-scale regression in south made most areas in China enter an intracontinental evolution phase. After the Indosinian movement, the west paleo-Mediterranean region and the east Paleo-Pacific were separated by the uplift of the central South China. (3) Since Middle Jurassic, the whole eastern China was involved in Pacific tectonic process, and the active continental margin of West Pacific Ocean formed affected by the Pacific Plate sliding beneath the Eurasian Plate. Most of the Northeast China developed iintra-arc rift (volcanic sedimentary) basin, while the North China continental block and the Alashan land block became divided. The mid-west area mainly consists of compressional basins, rift basins or depression basins, and the east developed intra-arc rift basins of epicontinental magma arc.In South China, drawing the Xuefeng Mountain as borderline, the east also developed iintra-arc rift basins related to the evolution of epicontinental magma arc, while the west developed large intracontinental compressional basins, rift basins or depression basins. The southwest area was still in a archipelagic arc-basin system pattern. |
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