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- W3199335263 abstract "摘要: 目前对塔中志留系物源的认识仍存在不确定性.利用LA-ICP-MS分析技术对塔里木盆地塔中地区志留系柯坪塔格组2件样品开展碎屑锆石U-Pb年代学研究.结果表明塔中志留系碎屑锆石主要为岩浆结晶成因，锆石年龄主要分布在早古生代460~490 Ma、新元古代760~1 000 Ma、古元古代1 600~2 200 Ma及新太古代晚期-古元古代早期2 400~2 600 Ma四个时期，其中新元古代760~1 000 Ma碎屑锆石年龄占绝对优势（56.8%），峰值~850 Ma.结合志留纪时期塔里木板块南北缘的板块动力学背景，通过盆内构造演化及地貌特征的分析以及和潜在源区锆石年龄的详细对比，确定塔中志留系碎屑锆石主要来源于塔里木盆地西南缘的铁克里克隆起构造带. 关键词: 物源 / 碎屑锆石 / U-Pb年代学 / 柯坪塔格组 / 志留系 / 塔中地区 / 塔里木盆地" @default.
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- W3199335263 date "2021-01-01" @default.
- W3199335263 modified "2023-09-26" @default.
- W3199335263 title "塔里木盆地塔中志留系柯坪塔格组物源示踪：碎屑锆石U-Pb年代学证据" @default.
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- W3199335263 doi "https://doi.org/10.3799/dqkx.2020.197" @default.
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