Fig. 4

Burial histories of the Lower Cretaceous Bashijiqike Formation (K1bs) in the six wells. (a) The fits between the measured pore pressure and temperature and the modeled results for wells BZ-7, BZ-13, DB-1401, BZ-17, DB-17 and DB-302. (b) The burial history of the Bashijiqike Formation (K1bs) in the six wells, showing that the rate of burial accelerated after the Early Himalayan orogeny. Plio = Pliocene, Plei = Pleistocene.