摘要
小红石砬子铅锌矿床在大地构造位置处于华北板块北缘东段。矿区出露地层为一套中酸性火山岩,通过锆石U-Pb定年确定赋矿岩石安山质凝灰岩的形成时代为(227.1±2.1)Ma,与吉林中部地区晚三叠世火山事件相对应;该矿床的成岩与成矿与晚三叠世火山事件密切相关。
Xiaohongshilazi depositi is located in the accretion zone of northern margin of North China Block. The exposed strata in the deposit is a set of intermediate acid volcanic rocks. Zircon U-Pb dating shows that the formation age of andesitic tuff （the ore-hosting strata） is （227.1±2.1 ）Ma, that is correspond to the late triassic volcanic events. The diagenesis and mineralization of the deposit will be closely related to the late triassic volcanic events.
出处
《中国锰业》
2017年第3期78-80,共3页
China Manganese Industry
基金
吉林省自然科学基金(20170101084JC)
