黔东及邻区武陵运动及其地质意义

戴传固; 陈建书; 卢定彪; 马会珍; 王雪华

黔东及邻区武陵运动及其地质意义

1.
中国地质大学，北京 100083
2.
贵州省地质调查院，贵州贵阳 550005

基金项目: 贵州省地质系列图及综合研究项目成果

详细信息

作者简介:
戴传固(1963-)，男，贵州省印江县人，工程技术研究员，长期从事区域地质调查研究工作

中图分类号: P535
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- 文章访问数: 137
- HTML全文浏览量: 50
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- 被引次数: 0
出版历程
- 收稿日期: 2009-12-24
- 刊出日期: 2010-03-28

WULING OROGENY IN EASTERN GUIZHOU AND ITS ADJACENT REGIONS AND ITS GEOLOGICAL SIGNIFICANCE

1.
China University of Geosciences, Beijing 100083, China
2.
Guizhou Institute of Geological Survey, Guiyang 550005, China

摘要

摘要: 黔东及邻区武陵运动对该地区影响明显，形成了中、晚元古代地层之间的不整合接触关系。贵州梵净山北及湖南大庸、岳阳、平江地区是武陵运动的构造高位区，向南东方向在平面上出现有规律变化，表现为上覆地层从缺失区至沉积区，接触关系从高角度不整合、低角度不整合至平行不整合，中元古代地层的变形变质程度逐渐减弱; 反映出该地区武陵运动的中心位置为贵州梵净山、湖南大庸、岳阳、平江一线，是南华狭窄洋盆萎缩、消亡，扬子古陆与华夏古陆的汇聚碰撞形成华南板块，中元古代该地区洋陆转换历程的具体体现。
- 武陵运动 /
- 地质意义 /
- 黔东及邻区
Abstract: The Wuling orogeny made a significant influence in eastern Guizhou and its adjacent regions, as reflected by the appearance of disconformities between middle and upper Proterozoic. It took its most profound expression in northern section of the Fanjing Mountain of Guizhou Province, Dayong, Yueyang and Pingjiang areas of Hunan Province, and left some regular changes on the plane toward southeast: the overlying beds from absence to presence, the contact from high-angle to low-angle and then to parallel disconformities, and metamorphism of middle Proterozoic gradually getting weaker. From the tectonic point of view, the Wuling orogeny, with its central place as stated above, brought about the withdraw and final disappearance of the Southern China ocean basin, the formation of the South China Plate by collision and convergence between Yangtze Oldland and Cathaysia Oldland, and the ocean-continent conversion in the study region during the middle Proterozoic.
- Wuling orogeny /
- geological significance /
- eastern Guizhou and its adjacent region

HTML全文

图 1 黔东及邻区大地构造略图

Ⅰ—扬子陆块; Ⅱ—江南造山带; Ⅲ—华夏陆块①—师宗—松桃—慈利—九江断裂带(北亚带); ②—罗城—龙胜—桃江—景德镇断裂带(中亚带); ③—北海—萍乡—绍兴断裂带

Figure 1. Tectonic sketch map of eastern Guizhou and adjacent regions

下载: 全尺寸图片幻灯片

图 2 贵州从江新村下江群与四堡群接触关系

1-变质砂岩; 2-变质砾岩

Figure 2. Contact relationship between Xiajiang Group and Sibao Group at Xincun section, Congjiang of Guizhou Province

下载: 全尺寸图片幻灯片

图 3 黔东及邻区中元古界与上覆地层接触关系示意图

1-冷家溪群; 2-梵净山群; 3-四堡群; 4-甲路组; 5-白竹组; 6-马底驿组; 7-高涧组; 8-五强溪组; 9-渫水河组; 10-漠滨组; 11-角度不整合; 12-平行不整合; 13-变余砂质砾岩; 14-变余石英砾岩; 15-片岩; 16-板岩; 17-凝灰质板岩; 18-变余石英砂岩; 19-变余石英长石砂岩; 20-变余砂岩; 21-大理岩; 22-橄榄辉石岩; 23-变余沉凝灰岩; 24-剖面位置

Figure 3. Sketch map showing the contact relationship between middle Proterozoic and the overlying strata

下载: 全尺寸图片幻灯片

图 4 贵州江口县黑湾河梵净山群褶皱素描(据1: 50 000梵净山区调资料)

Figure 4. A sketch map showing the folds in Fanjingshan Formation around Heiwanhe, Jiangkou County, Guizhou Province

下载: 全尺寸图片幻灯片

表 1 黔东及邻区中、新元古代地层对比表

Table 1. Correlation of the Mesoproterozoic and Neoproterozoic strat in eastern Guizhou and adjacent regions

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