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一产出的地质环境该区位于向西突出的弧形构造分布区的一个弧形断裂的顶部.区内地层有泥盆系呼兰群小三个顶子组大理岩及第四系.小三个顶子组大理岩为白色及灰白色,风化表面呈灰黑色,中粒至细粒,花岗变晶结构,厚层状,碳酸盐矿物为方解石,含量95%以上,夹硅质条带,成层断续排列,最长10～20厘米.第四系为坡积层,层内含金最高达12克/米~3,厚度1～6米.冲积层为砂砾及泥土,下部砂土层含金,厚1～3米.出露的岩浆岩主要为闪长岩侵入体,呈岩株,岩脉状.岩石深灰色、灰绿色,中细粒或斑状结构,块状、斑杂状构造.矿物成分有斜长石、角闪石,呈等粒状.有时含屑石、磷灰石、石英等.斑状结构者,基质呈半自形粒状结构,斑晶为粗粒的斜长石及角闪石.
Geological environment of a production The area is located at the top of an arc-shaped fracture with a prominent arc structure in the west. There are three small sub-Dingzilian marble and Quaternary series of the Devonian Hulan group in the area. The top sub-group of marble is white and gray, the weathering surface is gray-black, medium-grain to fine-grained, granodiorite structure, thick layer, carbonate minerals are calcite, the content is more than 95% Stratified intermittent arrangement, the longest 10 ~ 20 cm Quaternary for the slope layer, gold layer up to 12 g / m ~ 3, the thickness of 1 to 6 meters alluvial layer of gravel and soil, the lower part of the sand Layer gold, thickness 1 ~ 3 meters. Exposed magmatic rocks are mainly diorite intrusions, was rock, veins. Rock dark gray, gray-green, medium fine or spot-like structure, block, spot Like structure.Morphic composition of plagioclase, amphibole, was granular.Can sometimes crumb stone, apatite, quartz, etc ..Porphyrous structure, the matrix was semi-self-granular structure, plagioclase coarse grain length Stone and hornblend.