...Figure 1. The geographical position and tectonic geologic characteristics of the study area. The Western Sichuan Depression is located in the western part of the Sichuan Basin and is highlighted in yellow on the upper left. The objective of this study is the Xinchang tectonic belt, which...

...Figure 18. The S/N of the (a) original and (b) SR reconstruction seismic signal of the T 3 x 2 formation in the Xinchang structural belt. ...

... of multi-scale fractures are unclear. In this paper, we analyzed the types and controls of fractures in the second member of the Xinchang region in Western Sichuan. We use core and outcrops observations, imaging logging, scanning energy spectra, and rock slices. Natural fractures can be classified...

... are combined and modified in the basin (Liu et al . 2018 a ). The basin is divided into four tectonic units, namely: Western Sichuan Depression Belt, NE Sichuan Depression Belt, East Chongqing–SE Sichuan Depression Belt and Central Sichuan Uplift Belt (Fig.  1 a). The Xinchang gas field is located...

.... Sinistral transtension is compatible with the orientation of inherited basement strike belts, NE-directed SH max , and the modern E-NE-directed geodetic velocity field. Cosmogenic 26 Al/ 10 Be burial dating of the deepest sediments in the Jiujing Basin indicates that the basin began to form at ~5.5 Ma. Our...

... Schist Belt granitoids, eastern india natural fractures in tight gas sandstones: a case Tuhin Chakraborty 1657 1670 study of the Upper Triassic Xujiahe Formation in 1543 1560 Xinchang gas field, Western Sichuan Basin, china U Pb and Hf isotope study of detrital zircon and Yunzhao Zhang, Lianbo Zeng...

... belt. The Himalayan movement was manifested as a strong horizontal squeezing action. The Sichuan Basin is subjected to lateral squeezing, and a strong fold deformation occurred in the Western Sichuan Depression ( Lai et al., 2018b ). Then, the structural form of Xinchang area was finally formed (Figure...

... et al., 2013 ; Liao et al., 2013 ). In recent years, exploration wells targeting the Leikoupo Formation made major hydrocarbon discoveries in the Xinchang–Jinma–Yazihe–Shiyangzhen structural belt along the western margin of the Sichuan Basin, with proven gas reserves greater than 3000 × 10 8 m 3...

..., (5) Tongjing Syncline, (6) Jiashi Anticline, (7) Xinchang Syncline, (8) Qignshuitang Syncline, (9) Yanghe Syncline, (10) Yingwuxi Anticline, (11) Qiaojia Syncline, (12) Daoba Anticline, (13) Xiaoguanba Syncline, (14) Xinzhai Anticline, (15) Langxi Syncline, (16) Lengshuixi Syncline, (17) Wuxi...

... depths. Figure 4 3-D tomography imaging of gravity data at three depths: (a) 2,500 m; (b) 12,500 m; (c) 32,500 m. The heavy dashed line indicates fault structure, the other lines indicate thrust belt. Labels I, II, and III are the three rock masses. Figure 5 shows that the local highly...