摘要
本文据横跨中扬子南、北陆缘带地质、地球物理勘探资料的分析研究,发现并证实了中扬子地区南、北对冲式逆掩推覆构造的存在,对其形成演化模式、动力机制和构造格局特征进行了较为深入的论述。在此基础上较详细地研究了晚印支期以来,陆内地壳会聚褶皱造山及其后大规模拉张断陷活动的强烈改造,对中扬子中、古生代海域原始沉积盆地油气聚集与保存条件的影响。初步探讨了中扬子地区,特别是其南、北两缘对冲式逆掩推覆构造带的油气圈闭、运聚、保存条件和含油气潜力。
The presence of thrust nappe tectonics with northern and southern ramps in middle Yangtze area was discovered and verified based on the study of geologic and geophysical prospecting data across northern and southern continental m ■rgin zones of the middle Yangtze pene-platform. Its formation and evolution model,dynamic mechanism and tectonic fra- mework features are deeply discussed in the paper.On the basis of these, the effects of the continental converging fold-mountain building and subse- quently strong reform of a large tensional fault-depression activity on petro- leum accumulation and preservative condition of original sedimentary basin in the Paleozoic-Mesozoic era in middle Yangtze marine region since Indosi- nian period are dealt with in detail.The trapping,migration and accumula- tion,preservation of hydrocarbons condition and hydrocarbon potential in middle Yangtze area,especially in the thrust nappe tectonic zones of ramps at both northern and southern margins are also discussed.
出处
《石油勘探与开发》
SCIE
EI
CAS
CSCD
北大核心
1992年第2期1-9,共9页
Petroleum Exploration and Development
