Based on the 3 D seismic structure interpretation of Bohai Sea, combined with physical modeling of structure, structural style analysis and apatite fission track simulation, the structural characteristics and genetic ...Based on the 3 D seismic structure interpretation of Bohai Sea, combined with physical modeling of structure, structural style analysis and apatite fission track simulation, the structural characteristics and genetic mechanism of the Cenozoic strike-slip faults in Bohai Sea were investigated. The results show that Tanlu strike-slip fault experienced three stages of strike-slip activities in the Cenozoic,and the transition from left-lateral strike to right-lateral strike-slip was completed at the end of the fourth member of the Shahejie Formation. The strike-slip faults in the Bohai Sea have the characteristics of multi-stage and multi-strength stress superposition. According to the superimposed forms of different strengths, different properties and different ratios, they can be divided into three major genetic types,extension and strike-slip superimposition, extension and extrusion superimposition, extrusion and strike-slip superimposition, and fifteen typical structure patterns. Affected by multiple changes in the direction and rate of subduction of the Cenozoic Pacific plate, the difference between the Cenozoic extension and the strike-slip in the Bohai Sea area leads to the diversity of the fault system and the zoning of the depression structure. According to superimposition features of faults, the Bohai Sea area can be divided into the Liaoxi S-type weak strike-slip zone, Liaodong braided strong strike-slip zone, Boxi conjugated medium strike-slip zone, Bodong brush structure medium strike-slip zone and Bonan parallel strong strike-slip zone. These zones differ in oil and gas accumulation features.展开更多
香蕉是世界重要的水果作物和第四大粮食作物,也是世界贸易第一大宗水果,具有很高的经济价值,然而目前由尖孢镰刀菌古巴专化型(Fusarium oxysporum f. sp. cubense)引起的香蕉枯萎病正严重威胁着全世界的香蕉生产。由于病原菌通过土壤传...香蕉是世界重要的水果作物和第四大粮食作物,也是世界贸易第一大宗水果,具有很高的经济价值,然而目前由尖孢镰刀菌古巴专化型(Fusarium oxysporum f. sp. cubense)引起的香蕉枯萎病正严重威胁着全世界的香蕉生产。由于病原菌通过土壤传播,迄今该病害还没有有效的防治措施,且其致病机理尚未完全明确。本文对香蕉枯萎病菌的遗传多样性及其致病机理研究进展系统进行概述,以期为香蕉枯萎病的综合防控提供理论依据。展开更多
基金the China National Science and Technology Major Project (2016ZX05024-002, 2016ZX05024-003).
文摘Based on the 3 D seismic structure interpretation of Bohai Sea, combined with physical modeling of structure, structural style analysis and apatite fission track simulation, the structural characteristics and genetic mechanism of the Cenozoic strike-slip faults in Bohai Sea were investigated. The results show that Tanlu strike-slip fault experienced three stages of strike-slip activities in the Cenozoic,and the transition from left-lateral strike to right-lateral strike-slip was completed at the end of the fourth member of the Shahejie Formation. The strike-slip faults in the Bohai Sea have the characteristics of multi-stage and multi-strength stress superposition. According to the superimposed forms of different strengths, different properties and different ratios, they can be divided into three major genetic types,extension and strike-slip superimposition, extension and extrusion superimposition, extrusion and strike-slip superimposition, and fifteen typical structure patterns. Affected by multiple changes in the direction and rate of subduction of the Cenozoic Pacific plate, the difference between the Cenozoic extension and the strike-slip in the Bohai Sea area leads to the diversity of the fault system and the zoning of the depression structure. According to superimposition features of faults, the Bohai Sea area can be divided into the Liaoxi S-type weak strike-slip zone, Liaodong braided strong strike-slip zone, Boxi conjugated medium strike-slip zone, Bodong brush structure medium strike-slip zone and Bonan parallel strong strike-slip zone. These zones differ in oil and gas accumulation features.
文摘香蕉是世界重要的水果作物和第四大粮食作物,也是世界贸易第一大宗水果,具有很高的经济价值,然而目前由尖孢镰刀菌古巴专化型(Fusarium oxysporum f. sp. cubense)引起的香蕉枯萎病正严重威胁着全世界的香蕉生产。由于病原菌通过土壤传播,迄今该病害还没有有效的防治措施,且其致病机理尚未完全明确。本文对香蕉枯萎病菌的遗传多样性及其致病机理研究进展系统进行概述,以期为香蕉枯萎病的综合防控提供理论依据。