Fig. 3From: Development characteristics and controlling factor analysis of the Neogene Minghuazhen Formation shallow water delta in Huanghekou area, Bohai offshore basinSection of classification and comparison of parasequence sets in SQ1 in the lower member of Minghuazhen Formation in HHKA. Logging curves in the figure are mainly gamma (GR) and spontaneous potential (SP) curves. Locations of drilling wells are shown in Fig. 1. a-BZ34 area; b-BZ29 area; PSS-Parasequence set; sb-Sequence boundary; mfs-maximum flooding surfaceBack to article page