Sichuan overlain basin is located among the Jiangnan, Qinling-Dabie and Longmen orogenic belts, and at the juncture among ancient Asia, Circum-Pacific and Tethys.

• 摘要四川叠合盆地三面环山，自东而西夹持于江南、秦岭与龙门山三大山系之间，位于古亚洲、环太平洋与特提斯三大构造域的结合部位；