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| 同构造沉积速率对先存被动盐底辟挤压变形的影响:库车坳陷西秋里塔格构造带盐构造分析及物理模拟 | |
| 引用本文： | 谢会文,吴珍云,能源,尹宏伟,Hemin Koyi.同构造沉积速率对先存被动盐底辟挤压变形的影响:库车坳陷西秋里塔格构造带盐构造分析及物理模拟[J].高校地质学报,2014,20(4):611. |
| 作者姓名： | 谢会文 吴珍云 能源 尹宏伟 Hemin Koyi |
| 作者单位： | 中国石油塔里木油田公司勘探开发研究院;南京大学地球科学与工程学院;Department |
| 基金项目： | 国家自然科学基金(40872134;41372158)；国家油气重大专项 |
| 摘 要： | 文中构建了两组构造物理实验，对存在先存被动盐底辟构造的含盐盆地的厚皮挤压构造演化特征进行模拟，研究揭 示了库车坳陷西段秋里塔格构造带新生代盐相关构造演化过程。实验结果表明，同构造沉积速率对库车坳陷西段秋里塔格 构造带博孜-却勒区域（西段） 和秋里塔格-克拉苏区域（东段） 盐相关构造横向分段差异变形具有重要的控制影响作 用。在挤压过程中，博孜-却勒区域慢速同构造沉积使得先存被动盐底辟北翼（拜城凹陷南翼） 向南逆冲到底辟南翼之 上，并促使却勒盐推覆体和米斯坎塔克盐背斜形成；而秋里塔格-克拉苏区域快速同构造沉积使得先存被动盐底辟北翼快 速下沉，而其南翼在挤压应力作用下向北逆冲到底辟北翼（拜城凹陷南翼） 之上，形成南秋里塔格盐背斜。 |
| 关 键 词： | 同构造沉积 沉积速率 库车坳陷 秋里塔格 盐构造 物理模拟 |
The Influence of the Syn-kinematic Depositional Rate on the Compressional Deformation of Pre-existing Passive Salt Diapir:The Analysis and Analogue Modeling of Salt Structures in the Western Qiulitage Structural Belt,Kuqa Depression |
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| XIE Huiwen,WU Zhenyun,NENG Yuan,YIN Hongwei,Hemin KOYI.The Influence of the Syn-kinematic Depositional Rate on the Compressional Deformation of Pre-existing Passive Salt Diapir:The Analysis and Analogue Modeling of Salt Structures in the Western Qiulitage Structural Belt,Kuqa Depression[J].Geological Journal of China Universities,2014,20(4):611. | |
| Authors: | XIE Huiwen WU Zhenyun NENG Yuan YIN Hongwei Hemin KOYI |
| Abstract: | Abstract：Two scaled analogue models are constructed to simulate the evolution of thick-skinned shortening on salt-bearing basins with pre-existing passive salt diapirs. These models simulate the evolution of the Cenozoic salt-related structures in the Qiulitage structural belt, western Kuqa depression. Model results show that the syn-kinematic depositional rate has a major controlling influence on the differential structural deformation in different longitudinal segmentations from the Bozi-Quele area (the west part) to Qiulitage-Kelasu area (the east part) in the Qiulitage structural belt, western Kuqa depression. During the shortening, the slow syn-kinematic depositional rate caused the north flank (the south flank of the Baicheng sag) of the pre-existing passive salt diapir thrust onto the south flank (the north flank of the Misikantake salt anticline) and made the formation of the Quele salt nappe and the Misikantake salt anticline in the Bozi-Quele area; In contrast, the quick syn-kinematic depositional rate caused the south flank of the pre-existing passive salt diapir thrust onto the north flank (the south flank of the Baicheng sag), which made the formation of the south Qiulitage salt anticline in the Qiulitage-Kelasu area. |
| Keywords: | syn-kinematic deposition rate Kuqa depression Qiulitage salt structure analogue modeling |
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