CAJ | 학술논문

张家口地区是河北省金银多金属矿床集中区,本文划分出以宣化-崇礼-赤城一带岩浆-变质杂岩区为中心的金矿集中区和外围盖层区银多金属成矿分布区.幔枝构造研究表明,金银多金属成矿物质主要来自地球深部,通过地幔热柱多级演化向上迁移,并在幔枝构造的有利构造扩容带中集聚成矿.平面上从中心向外围,空间上,由下部往上部都具有金→银→铅锌的分带性,并已经在多处矿山得到研究证实.因此,张宣幔枝构造区深部仍有很大的找矿潜力.
장가구지구시하북성금은다금속광상집중구,본문화분출이선화-숭례-적성일대암장-변질잡암구위중심적금광집중구화외위개층구은다금속성광분포구.만지구조연구표명,금은다금속성광물질주요래자지구심부,통과지만열주다급연화향상천이,병재만지구조적유리구조확용대중집취성광.평면상종중심향외위,공간상,유하부왕상부도구유금→은→연자적분대성,병이경재다처광산득도연구증실.인차,장선만지구조구심부잉유흔대적조광잠력.
The Zhangjiakou area is the most important concentration region of gold-silver-polymetallic deposits in Hebei. This area is divided into the gold concentration area in the Xuanhua-Chongli-Chicheng magmatic and meta-morphic complex, and the silver-polymetallic distribution area in the cover of the periphery. The mantle branch has shown that metallogenic material of gold, silver and so on was derived mainly from the depth, moved up through the multiple grade evolution of a mantle plume, and formed deposits in favorable structural spreading zones. The result shows that metamorphic complex and cover of the periphery all exhibit vertical zoning (from lower to upper) , horizontal zoning(from center to boundary) : Au-Ag-Pb and Zn, and has already confirmed by many mines. Therefore, the Zhangjiakou-Xuanhua mantle branch structure region should have a great prospecting potential in the depth.