And the boundary of them has the same lithologic character: the ravinement surface of river course or exposure mudstone of flooding plain and root clay.
二者的界面是相同的，均为河道砂体底部的冲刷侵蚀面或者是暴露过泛滥平原泥岩、根土岩等。
The extensive development of the lateral accretions of continental strata leads to the horizontal variation of lithologic character and lithologic facies.
陆相地层侧向加积作用广泛发育，导致岩性、岩相横向多变。
In vertical, from E31 to E32, it changes from braided river delta to a shallow lake facies, thus, formed a cycle which lithologic character is rough at bottom.
在纵向上，从E31 -E32，从下向上由辫状河三角洲相变为浅湖相，构成了一正旋回沉积。
With the help of core scale logging method, the basic study is conducted to identify the lithologic character and quantitatively calculate the parameters of fractures.
通过岩心刻度测井的方法，开展了岩性识别、定量计算裂缝参数等基础研究。
The lithologic character, orientation and structural planes, and the relation between structural planes can be defined for studies of fault on the basis of borehole-wall images.
从这些图像上可以解译出岩性特征、结构面的走向和相互关系等信息。
Through analysis of lithologic character and composite structure of roof rock of No. 6 coal layer in Liuqiao Coal Mine, the stability of roof rock in different zones are assessed.
通过对刘桥矿区6煤层顶板岩层的岩性和岩性组合结构的分析，确定了不同区域的稳定性情况。
Through analysis of lithologic character and composite structure of roof rock of No. 6 coal layer in Liuqiao Coal Mine, the stability of roof rock in different zones are assessed.
通过对刘桥矿区6煤层顶板岩层的岩性和岩性组合结构的分析，确定了不同区域的稳定性情况。
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