吉林省“大黑山条垒带”晚古生代火山事件及其构造意义

来源 :地学前缘 | 被引量 : 0次 | 上传用户：csl721

【摘要】

：

对出露于吉林省"大黑山条垒带"、行政区辖属伊通县发展乡一带的"大黑山火山岩"-安山质凝灰熔岩、片理化流纹岩分别采样并挑选锆石,经LA-ICP-MS定年,查明安山质凝灰熔岩74颗锆石的~(206)Pb/~(238)U年龄介于1 873~240 Ma,其中~(206)Pb/~(238)U年龄值介于317~240 Ma的69粒锆石均显示出岩浆成因特征,表明研究区自晚石炭世晚期便存在火山事件,火山喷发活动

【作者】

：

韩作振宋志刚高丽华韩梅郭志平钟文建李晶晶杜庆祥闫俊磊刘辉

【出处】

：

地学前缘

【发表日期】

：

2017年02期

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吉林省“大黑山条垒带”晚古生代火山事件及其构造意义

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