黔东南地区褶皱构造样式及其断层突破模式

崔敏; 汤良杰; 郭彤楼; 宁飞; 田海芹; 胡东风

黔东南地区褶皱构造样式及其断层突破模式

崔敏^{1, 2,},
汤良杰^{1, 2},
郭彤楼³,
宁飞^{1, 2},
田海芹⁴,
胡东风³

1.
油气资源与探测国家重点实验室, 北京 102249
2.
中国石油大学盆地与油藏研究中心, 北京 102249
3.
中国石化勘探南方分公司, 四川成都 610041
4.
中国石化勘探分公司, 北京 100029

基金项目:

国家“973”计划项目 2005CB422107

国家自然科学基金项目 40672143

详细信息

作者简介:
崔敏(1981—), 男, 博士研究生, 构造地质学专业. E-mail: cuimin800@163.com

中图分类号: P542
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- 被引次数: 0
出版历程
- 收稿日期: 2008-11-26
- 刊出日期: 2009-11-25

Structural Style and Thrust Breakthrough Model of Fold in Southeast Guizhou

CUI Min^{1, 2
,},
TANG Liang-jie^{1, 2},
GUO Tong-lou³,
NING Fei^{1, 2},
TIAN Hai-qin⁴,
HU Dong-feng³

1.
State Key Laboratory of Petroleum Resource and Prospecting, Beijing 102249, China
2.
Basin & Reservoir Research Center, China University of Petroleum, Beijing 102249, China
3.
Southern Exploration Division Company, SINOPEC, Chengdu 610041, China
4.
Exploration Company of SINOPEC, Beijing 100029, China

摘要

摘要: 黔东南地区发育隔槽式褶皱组合和逆冲断层.通过对褶皱和地层的平面展布、断层的产状和性质以及滑脱层的分析, 结合典型地震剖面解释和平衡剖面恢复, 对黔东南地区构造特征及其成因进行了探讨.结果表明, 隔槽式褶皱的发育不仅与滑脱深度和剥蚀差异有关, 而且与逆冲断层的推覆距离、逆冲断层的产状、断坪断坡长度比、断层突破方式和多层次滑脱等方面存在着密切联系.结合区域构造演化和推覆距离的制约, 建立了黔东南地区的隔槽式褶皱构造样式的几何学和运动学模型, 确定其主要影响因素是断坪断坡长度比较小、多种方式断层突破和多层次滑脱.
- 隔槽式褶皱 /
- 断层突破 /
- 多层滑脱 /
- 构造 /
- 成因模式 /
- 黔东南地区
Abstract: The trough-like folds and thrust are well developed in Southeast Guizhou. The characteristics and origin of the structure in Southeast Guizhou are studied by analyzing the planar distribution of the folds and the strata, the nature and occurrence of the fault, the detachment beddings and the interpreted and restored seismic cross-sections. The results show that besides the depth of decollement and the denudation difference, the formation of the trough-like folds is also controlled by the distance from the nappe, the occurrence of the thrust, the length scale ratio of flat to ramp, the breakthrough ways of the fault and the multi-decollement. Combining with the regional tectonic evolution and the nappe distance, the geometry and the kinematics models of the trough-like folds structural style are established in Southeast Guizhou, which are mainly controlled by the minor scale of flat to ramp, various ways of thrust breakthrough and multi-decollement.
- trough-like folds /
- thrust breakthrough /
- multi-decollement /
- tectonics /
- genetic model /
- Southeast Guizhou

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图 1 黔东南地区地质略图(贵州省地质矿产局, 1987)

1.新生界; 2.侏罗系和白垩系; 3.三叠系; 4.上古生界; 5.下古生界; 6.中、上元古界; 7.逆断层; 8.走滑断层; 9.地层产状

Fig. 1. Geological sketch map of the Southeast Guizhou

下载: 全尺寸图片幻灯片

图 2 黔东南地区隔槽式褶皱平衡剖面恢复(位置见图 1)

Fig. 2. Restoration of seismic cross-sections of through-like fold in Southeast Guizhou

下载: 全尺寸图片幻灯片

图 3 滑脱深度不同的滑脱褶皱膝折模型(Ramsay and Huber, 1987)

A-A′剖面显示隔槽式特征; B-B′剖面显示隔槽式特征; H.滑脱面深度; W.背斜宽度

Fig. 3. Kink-band model of detachment folds in different depths

下载: 全尺寸图片幻灯片

图 4 不同断坪-断坡长度比的断层突破模式

Fig. 4. Fault-breakthrough models for the different scales of flat to ramp

下载: 全尺寸图片幻灯片

图 5 黔东南地区隔槽式褶皱组合的滑脱褶皱-断层突破形成模式

Fig. 5. A breakthrough of detachment folds model showing the formative process of the trough-like folds in Southeast Guizhou

下载: 全尺寸图片幻灯片

表 1 黔东南地区3个向斜的缩短量与缩短率(以寒武系为标志层)

Table 1. The amount and the rate of shortening in the three synclines in Southeast Guizhou

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