| 大港歧口沿岸带前第三系构造体系探讨 |
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| 关键词:structural (tectonic) system sinistral en-echelon coastal zone pre-Tertiary |
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| A Discussion on the Pre-Tertiary Structural System of Qikou Coastal Zone in Dagang Oilfield |
| The NNE-striking Qikou coastal zone is located along the northern extension of Liaolan fault separating Taihang Mountain from Luxi basement. It serves not only as a geographic boundary but also as pre-tertiary en-echelon drapes and a Cenozoic tectonic conversion zone controlled by the basement fault zone. This paper discusses in detail the pre-Tertiary tectonic system and its evolutio-nary process based on regional background analysis. The main feature is a sinistral en-echelon structure made up of a serial of NE arrayed left-side-driving drapes and upheavals in plane, which display positive flower fault array in profile. The system was formed by the early Yanshanian deep fault compressive-wrench on the basis of Indo-Sinian NEE large-scale upheavals, and was reconstructed by the Himalayan stretch rift-depression action. |
| HAO Yin-quan,PAN Mao,CHANG Yu-wen,XIE Pei-gong.2005.A Discussion on the Pre-Tertiary Structural System of Qikou Coastal Zone in Dagang Oilfield[J].Acta Geoscientica Sinica,26(3):223-228. |
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