Two new types of sandbars are found in distributary channels of the modern Ganjiang Delta,Poyang Lake, China, respectively named as branching-point bar （BPB） and merging-point bar （MPB）. BPB isdefined as sandbar formed at the branching point of a channel where one channel branches into two.
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[1]College of Geosciences, China University of Petroleum （Beijing）, Beijing 102249, China [2]College of Geosciences, Yangtze University, Wuhan 430100, Hubei, C-hina;
