oil shale group 中文意思是什麼
oil shale group
解釋
油頁巖群-
Wudaoliang group is grayish - white, yellow - grey, dark - grey ash rock, which interbeded with the conglomerate, sandstone, a little amount mudstone, oil shale with unconsolidated sand mud rock
五道梁群以灰白色、灰黃色灰巖為主,含有礫巖、砂巖,夾有少量泥巖、油頁巖和未固結砂泥沉積。
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