中国中西部地区关键构造变革期次及变形特征

杨帆; 胡烨; 罗开平; 李风勋; 潘文蕾; 曹清古; 陆永德

doi:10.11781/sysydz201904475

中国中西部地区关键构造变革期次及变形特征

doi: 10.11781/sysydz201904475

中国石化石油勘探开发研究院无锡石油地质研究所, 江苏无锡 214126

基金项目:

国家科技重大专项"中西部重点碎屑岩层系油气富集规律与勘探方向"（2016ZX05002-006）资助。

详细信息

作者简介:
杨帆(1979-),男,高级工程师,主要从事盆地分析研究。E-mail:kyoukyo.syky@sinopec.com。

中图分类号: TE121.1
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出版历程
- 收稿日期: 2019-01-03
- 修回日期: 2019-04-18
- 刊出日期: 2019-07-28

Tectonic evolution stages and deformation characteristics in central and western China

Wuxi Research Institute of Petroleum Geology, SINOPEC, Wuxi, Jiangsu 214126, China

摘要

摘要: 中国中西部地区大型盆地都经历了多期构造运动，这些大大小小的构造事件对盆地的形成演化起到了不同的控制作用。晚古生代以来，中西部地区大型盆地的发展可分为晚古生代-早中生代的"北聚南离"过渡构造体制和中生代以来的陆内变格体制，盆地关键变革期总体受控于这2种构造体制，随所处构造位置不同，在变革期次以及变形特征上存在一定差异。总体存在2个关键期：一是海西晚期-印支早期，主要导致盆地完成海陆转变；二是燕山期-喜马拉雅期，这是中西部地区构造活动最为强烈的时期，也是主要构造主形成期，同时也大多对应着碎屑岩层系的主要成藏期和改造期，其变形特征主要表现为断裂-褶皱改造和差异抬升掀斜作用。
- 构造运动 /
- 关键构造变革期 /
- 变形特征 /
- 中国中西部
Abstract: Large basins in central and western China have undergone multiple stages of tectonic movement, which played different roles in controlling the formation and evolution of the basins. Since the Late Paleozoic, the development of these basins can be divided into the ‘north convergence and south separation’ transitional tectonic system from the Late Paleozoic to the Early Mesozoic and the intracontinental alteration system since the Mesozoic era. The change period of the basins is controlled by these two structural systems, while there are some differences in the transformation times and deformation characteristics in different structural locations. In general, there are two key periods. The first is from the Late Hercynian to the Early Indosinian period. The movement led to the completion of sea land transformation. The second is from the Yanshan period to the Himalayan period. This is the most intense period of tectonic activity in the central and western regions, and also the main formation period. At the same time, this period also corresponds to the main accumulation stage and transformation stage of clastic strata. The main deformation characteristics are fracturing, folding and differential uplifting.
- tectonic movement /
- key tectonic revolution stage /
- deformation characteristics /
- central and western China

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