Understandings of the continental sequence stratigraphy——An example from 1∶50000 regional survey of Minhe basin,Gansu Province

There exists great difference between continental and marine sequence stratigraphy, between continental and marine sedimentation. A new set of concepts and models should be created to adapt to the continental sequence stratigraphy on the basis of the basic concepts and theories of marine sequence stratigraphy by means of exploring continuously, rather than by copying blindly, in the practical application of sequence stratigraphy. The concepts of quasi sequence and quasi sequence group were produced and used naturally, according to the developing features of the sequence of continental basin and filling in it. The quasi sequence itself shows event deposit and high resolution, which enable it possible that not only could temporal sequences be classified, but also the disordered strata could be connected spatially.