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用 Be 方法测定了新疆天山南缘库尔楚西北 3 个冲洪积扇的形成年龄,结合野外 1∶50000 地质填图对 10这 3 个冲洪积扇相对时代的估计,得到了这 3 个冲洪积扇面的形成时代分别为距今(17±3)×103、(27±3)×103、(25±3)×103 10Be 年,为研究错断这 3 个冲洪积扇面的北轮台断裂晚第四纪以来的活动提供了年代学依据。
The age of formation of three alluvial-accumulating alluvial fans in northwestern Kurchu of southern Xinjiang Tianshan Mountains was determined by Be method. Based on the field geologic mapping of 1: 50000, the relative ages of 10 alluvial fans were obtained. These three The formation ages of the alluvial fan facies are (17 ± 3) × 103, (27 ± 3) × 103, (25 ± 3) × 103 10Be, respectively. For the study of the north The activities since the Late Quaternary of the Luntao Fault provided the basis for geochronology.