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南秦岭三叠系裂陷槽主要分布在合作—宕昌—两当大断裂与腊子口—舟曲—成县大断裂之间,向东伸入陕西界内,向西延伸到青海省,以甘肃陇南相关三叠纪地层研究程度最高。其北界为传统意义上中秦岭与南秦岭的分界线,沿此断裂构造带目前已发现有众多的多金属矿点及矿化点。南界属于著名的白龙江背斜的北翼,沿此断裂构造带最近也不断发现了一系列金矿及矿化异常线索,尤以甘肃西和大桥大型金矿的发现最为典型。综合研究发现南秦岭三叠纪裂陷槽内三叠系地层两侧的断裂边界带具备多金属成矿的大量依据,且以构造带内热卤水成矿类型为主。
The Triassic rift troughs in the South Qinling Mountains are mainly distributed between the Dangchang-Erdam fault and the Lazikou-Zhouqu-Chengxian fault, extend eastward into the Shaanxi boundary and extend westward to Qinghai Province, Gansu Longnan related triassic strata of the highest degree of research. Its northern boundary is the demarcation line of the Qinling Mountains and the South Qinling Mountains in the traditional sense. So far, numerous polymetallic ore spots and mineralization points have been discovered along this fault zone. The southern boundary belongs to the north wing of the famous Bailongjiang anticline. Recently, a series of abnormal clues of gold and mineralization have been discovered along the fault tectonic belt. Especially, the discovery of large-scale gold deposits in West Hexi Bridge in Gansu Province is most typical. The comprehensive study shows that the fault boundary zone on both sides of the Triassic strata in the Triassic rift channel in southern Qinling has a large number of basis for polymetallic metallogenesis and is mainly dominated by thermal brine metallogeny in the structural belt.