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一、引言万山矿田汞矿床分佈于貴州高原的东北部,其区域构造属江南古陆的西缘部分,区內岩石产状平缓,一般为几度,很少达20～30度,傾向北西,断裂和褶曲都不发育。矿床为賦存在中、下寒武紀蝕变白云岩中的整合状多层含矿体。剝离构造为局部成矿构造的主要特征,此种构造在单斜岩层的較小褶曲处最为发育。当封密类型的平缓状岩层傾角稍有变化时,即可在一定层位中主要是中、下寒武紀的蝕变白云岩中产生复杂的並与岩石层理相一致的整合剝离构造带,
I. INTRODUCTION The Wanshan orefield mercury deposits are located in the northeast of Guizhou Plateau. The regional structure belongs to the western margin of the Jiangnan ancient land. The rocks in the Wushan orefield are gentle, usually a few degrees, rarely reaching 20 to 30 degrees. North West, fault and fold are not developed. The deposit is an integrated multi-layer ore-bearing body existing in the middle and lower Cambrian alteration dolomites. Peeling structure is the main feature of local metallogenetic structure. Such structure is the most developed in the smaller folds of monoclinic strata. When the dip angle of gentle type strata of the seal type changes slightly, the integrated peel structure that is complicated and consistent with the lithosphere can be formed in a certain horizon, mainly in the middle and lower Cambrian altered dolomites ,