利用层拉平等技术研究了辽河东部古生界的构造演化史，划分出了四个主要演化阶段。

And the evolvement of tectonics was researched by flattening technique in Paleozoic of the Liaohe east, and it can be divided into four main evolution stages.

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认为表生富集型氧化锰矿床的形成主要受原生含锰层、地质构造、地形地貌、顶盖层厚度、岩性、气候及水文地质等条件所制约。

Formation of the oxidized Mn deposit is controled by the primary Mn ore layer, tectonics, geomorphology, thickness and lithology of the cover rock, climate and hydrogeological condition.

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