Basins and Related Tectonics

Wei et al. based on above basic research. The Tarim Basin underwent important tectonic evolution in the early Paleozoic, the late Paleozoic, the Mesozoic and the Cenozoic. The proto-type basin and tectono-paeogeography of Tarim basin are related to the tectonic environment surrounding the basin. The Junggar Basin is another important hydrocarbon basin in the northwestern China. Li Z et al. analyzed 15 apatite samples of Fission-track dating and eight zircon samples obtained from the northern Junggar Basin. Apatite FT ages ranged from 131 to 42 Ma and zircon FT ages ranged between 205 Ma and 132 Ma. The northern Junggar Basin underwent three tectono-thermal events during 165-161, 93-81, and 72-66 Ma. The thermal events of 165-161 Ma may suggest magmatic activity during the Yanshanian stage, while the 93-86 and 72-66 Ma events show Late Cretaceous uplift and cooling. These results suggest that the Yanshannian tectono-thermal events involve the evolution of the Junggar Basin in Mesozoic. Sichuan basin is one of important basins in the southwestern China. The deep reservoirs are explored and developed for these years. The Tongnanba anticline in the northeastern Sichuan Basin was subjected to the compression of the Micangshan and Dabashan thrust belts, forming a complex superimposed structure with three deformation structure layers controlled by three detachment layers in three stages. Zhia et al. proposed that these deformation layers extended in the NW-SE direction and formed the long-distance detachment thrust structure controlled by the Micangshan thrust belt in the late stage. Songliao Basin is a large Mesozoic-Cenozoic basin and an early discoveried hydrocarbon basin in China. He et al. proposed that the hydrocarbon accumulation in the upper member of the Quantou Formation are controlled by folds and faults in the central Songliao Basin. The faults in the area are classified into three stages. The three-dimensional structure of the third member of Quantou Formation is explained by the integration of well logging and seismic data, then the fracture characteristic and the tectonic history of the Yangdachengzi oil layer are analyzed in the topic. The Bohai Bay Basin is the well-developed hydrocarbon basin in the eastern China. Based on the most recent progress of exploration and development, Wang et al. Quantitatively analysed the structural characteristics and fault activity of the buried hill using the balanced section technique in the topic. The structural evolution of the area was simulated by tectonophysic modeling experiment. The NNE-trending fault was a left-handed fault that formed in the background of the left-handed strike-slip activity of the Tanlu fault zone. The EW-trending fault was closely related to the near-SN extension in the Late Cretaceous. The South China Sea Basin is an important prospective sea basin with rich hydrocarbon resource. Using 2D and 3D seismic data and modelling, Guo et al. proposed that the Zhu Ⅰ Depression in the basin as a series of half grabens bounded by NE-NEE-trending normal faults have undergone two phases of the extension during the Paleogene. Two phases of structural-sedimentary evolution suggest that the Panyu 4 Sag was formed in the multi-stage extension. Since the Paleogene, the structural evolution of the Panyu 4 Sag has been controlled by the coupling among the Pacifific, Eurasian, and Indian plates, related to the orientation of subduction of the Pacifific plate transfering from NNW to NWW. Fan et al. proposed two methods are proposed in the topic to identify effective faults for hydrocarbon accumulation in slope areas. The first of method focus on location of the sand bodies and paleotectonic ridges controlling the lateral migration path of hydrocarbons in slope areas. The second method resolves the lateral sealing parts of faults that are oriented perpendicular or oblique to the channel sand bodies. These papers in the Research Topic Basin and Related Tectonics suggest that the structures, sedimentary and evolution of these basins are related to the tectonics surrounding these basins. The tectonics controll the structures, facies, configuration of depressions and uplifts, stress field, even the reservoirs, migration and accumulation of petroleum in these basins.