| 阜新-义县盆地构造演化及应力场光弹性模拟分析 |
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| STRUCTURAL EVOLUTION AND PHOTOELASTIC MODELLING ANALYSIS OF STRESS FIELD OF FUXIN-YIXIAN BASIN |
| The present paper deals with the formation and evolution of the Fuxin-Yixian basin by analysing various geological structures in the basin and neighbouring area. The authors consider that the formation of the Fuxin-Yixian basin is controlled by tectonic activity giving rise to NW-trending structures. Photoelastic modelling was conducted to simulate the stress field in this area during and after the formation of the basin. When the NW-trending structures were formed, the area was compressed in NNE-SSW direction. Leading to downward movements of the pre-existing NNE-SSW, N-S, and north by east inward dipping faults as a result of extension. The basin was thus expanded. Because of the renewed activity of the Neocatha-ysian tectonic system after early Cretaceous the NNE-SSW, N-S and north by east faults suffered compression, resulting in thrusting instead of down-faulting. The basin was so changed and modified by the structures of Neoca-thaysian tectonic system. |
| HUANG Qing-hua,MA Yin-sheng,LI Yong-xian,WANG Yan-qing.1991.STRUCTURAL EVOLUTION AND PHOTOELASTIC MODELLING ANALYSIS OF STRESS FIELD OF FUXIN-YIXIAN BASIN[J].Acta Geoscientica Sinica,12(1):21-34. |
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