Characteristics of the Middle Jurassic marine source rocks and prediction of favorable source rock kitchens in the Qiangtang Basin of Tibet

Origins of gas discharging from the Qiangtang Basin in the northern Qinghai–Tibet Plateau, China: Evidence from gas compositions, helium, and carbon isotopes

“…Although a myriad of lines of evidence have demonstrated that the Qiangtang Basin is the most favorable sedimentary basin for hydrocarbon and gas hydrate exploration and exploitation in the Qinghai-Tibet Plateau Ding et al, 2013;Fu et al, 2010bFu et al, , 2013He et al, 2012), we did not see many surface hydrocarbon manifestations in the study area. Instead, CO 2 in gas samples from the Beiluhe, the southern Erdaogou Depot, the eastern Tuotuo River, the branch of Tuotuo River, and the Tanggula Mountain Depot at least partially originates from the mantle.…”

Elemental geochemistry of the early Jurassic black shales in the Qiangtang Basin, eastern Tethys: constraints for palaeoenvironment conditions

“…The Qiangtang Basin is the biggest marine basin in the Tibetan Plateau of the eastern Tethys, covering an area of about 220 × 10 3 km 2 (Wang et al ., ). Over the past two decades, the basin has become a frontier for oil exploration (Zhao and Li, ; C. S. Wang et al ., 2004; Chen et al ., , ; Guo et al ., ; Wang et al ., , ; Ding et al ., , ; Zeng et al ., ). The early Jurassic black shales are the most important source rocks in the basin (Wang et al ., ).…”

Organic geochemistry and petrology of Lower Cretaceous black shales in the Qiangtang Basin, Tibet: Implications for hydrocarbon potential

“…However, the high altitude of the area has resulted in only limited oil and gas exploration and the hydrocarbon resource potential remains unclear (Qin, 2006a). Previous research based on outcrop and limited core samples has focused on source rock intervals including the Upper Triassic Xiaochaka Formation (T 3 x), the Middle Jurassic Buqu (J 2 b) and Xiali (J 2 x) formations, and the lower member of the Upper Jurassic Suowa Formation (J 3 s 1 ) (Qin, 2006b;Ding et al, 2011Ding et al, , 2013Wang et al, 2013).…”