态学;
Same decorations,was it in earlier time for such cuspate scabbard tail?
相同纹饰，这种尖式鞘尾年代
靠前？：）
Same decorations,was it in earlier time for such cuspate scabbard tail?
相同纹饰，这种尖式鞘尾年代靠前？：）
Cuspate deltaic sands micro-facies, which formed at the time of powerful wave action, the continuity of marine distributary channel is bad, and distributes in cuspate shape. 3.
3、坨状三角洲砂体微相，
成时波浪作用很强，水下分流河道连续性较差，呈坨状分布。
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