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一、地质概况区内广泛分布中寒武系和下寒武系岩层,中寒武系原分十层,下寒武系原分五层,近又就其含矿情况併合为上复层(ε_28-10)、上容矿层(ε_23-7)、复盖层((ε_1)~5-(ε_2)~2)、下容矿层(ε_13-4)和下伏层(ε_11-2)等五组,前三者主要分布于中南部及北部,后两者仅见于区内两侧的沟谷地带,东侧较西侧为多.上复层和覆盖层为由以泥质白云岩或石灰岩为主及夹有与其成互层的底部页岩所组成,前者厚在200米以上,后者厚为110～139米.下伏层由杂色页岩所
First, the geological overview The region is widely distributed in the Cambrian and the Lower Cambrian rock, the Cambrian Department of the original ten, the Lower Cambrian Department of the original five, near and its mineralization combined into the upper strata ( ε_28-10), the upper ore body (ε_23-7), the overburden (ε_1) ~ 5- (ε_2) ~ 2), the lower ore bed (ε_13-4) and the underlying layer (ε_11-2) The first three are mainly distributed in the central and southern part and the northern part, the latter two are only found in the gully areas on both sides of the area and are more on the east side than on the west side. The upper strata and the overburden are composed of muddy dolomite or limestone The main and intercalated with the bottom of the shale formed by the composition, the former is more than 200 meters thick, the latter is 110 to 139 meters thick. The underlying layer by the variegated shale