... assumed that the East Kunlun Shan and Qimen Tagh formed significant topographic barriers during the earliest sedimentation of Cenozoic strata (e.g., the Lulehe Formation) in the northern Qaidam Basin. Therefore, the tectonic significance of the provenance of the Lulehe Formation remains a fundamental...

... measured with a 2G, three-axis, cryogenic magnetometer in a magnetically shielded room in the Paleomagnetism Laboratory of the Institute of Geology and Geophysics, Chinese Academy of Sciences. As the upper Lulehe formation (∼100 m thick) was formed mainly of coarse materials, making it difficult to take...

...Figure 7. Representative stratigraphic columns for major depositional environments of the Dahonggou section. (A) Braided-anastomosing fluvial deposits of the lower Lulehe Formation. (B) Gravelly braided fluvial deposits of the upper Lulehe Formation. (C) Meandering fluvial deposits...

... at the top of the Lulehe Formation, and T6 at the top of the Jurassic-Cretaceous strata. GS-1 and GS-2 are two growth-strata sequences associated with the development of the triangle zone and later synclinal folding. TWTT—two-way travel time. ...

...Figure 6. Gridded isopach maps of the Cenozoic stratigraphic units. (A) Lulehe formation (LLH). (B) Lower Xiaganchaigou formation (LXG). (C) Upper Xiaganchaigou formation (UXG). ATF—Altyn Tagh fault. Insets show the typical thickness-distance plot extracted from the corresponding isopach maps...