The tectonic evolution and framework of northern part of the Tarim Basin was controlled, obviously, by the creation and evolution of the South Tianshan collisional orogenic belt. The oil and gas distribution there was controlled by the tectonic evolution and framework of northern part of the Tarim Basin, where two generations of foreland basin could be distinguished: the Mesozoic Kuqa and Cenozoic North Tarim foreland basins. The gas bearing region was fold and thrust belt north to the Qiulitag belt (including the northern part of Qiulitag belt), namely, the major part of the Kuqa Depression. The southern part of the Tabei (North Tarim) Rise to the northern part of the Central Rise was an oil bearing region. From the southern part of the Qiulitag belt to the northern part of the Tabei Rise was a region of gas and oil co existing. The regularity of the oil and gas distribution in North Tarim was closely related to developing of the foreland basins.
Chinese Journal of Geology
The Tarim Basin, The Kuqa foreland basin, The Northern Tarim foreland basin, The South Tianshan orogen, Oil and gas distribution