中扇是碳酸锰矿有利赋存部位。
Middle fan was favorable occurrence in enriching manganese carbonate deposit.
无论是内扇还是中扇，水道都特别发育，而且水道游荡作用明显。
The channel deposits are especially well developed in both upper and middle fans, and their sequences are very clear.
好的储集体主要有湖底扇中扇辫状水道砂体和轴向重力流水道砂体。
Good reservoir mainly includes sublacustrine fan-in-fan braided channel sand body and axial gravity flow channel sand body.
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