azimuth direction
3.The paper briefly summarized the importance of the direction of distinguishing palaeo water flow directly by use of core and the method of determining accurrence of core foramtion,detaily described the four working steps of①dip angle correction of core formation,②seek real occurrence from inclined bedding viewing occurence,③seek dip azimuth by the example of inclined bedding,④determine palaeo water flow direction.

