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調查区概况 調查区的地层除巨厚的(一般大于30米)第四纪松散沉积物及近代山坡堆积物外,其余部属前震旦纪的古老变質片岩系。岩层自下而上按岩性可细分为:炭质絹云母片岩、綠泥石絹云母片岩、石英炭質片岩、碳酸盐化之炭质片岩及含矿之长英角岩数层。这些岩层均不利于含水,尤以炭質片岩为一良好隔水层。但因該区深受地质构造的影响,在变質片岩系中地下水
Survey area survey The survey area of the formation in addition to the huge (generally more than 30 meters) Quaternary loose sediments and modern hillside deposits, the other part of the pre-Sinian ancient metamorphic schist. Rock strata can be subdivided into lithostratigraphy from bottom to top: carbonaceous sericite schist, chlorite sericite schist, quartz carbonaceous schist, carbonated carbonaceous schist and ore-bearing hornblende. These rock layers are not conducive to water, especially carbonaceous schist as a good impermeable layer. However, due to the influence of geological structure in the area, groundwater in the metamorphic schist series