西藏南部桑桑地区仲巴-江孜逆冲断裂40Ar-39Ar年龄和碎屑锆石U-Pb年龄数据集

本数据集为数字型表格文本数据。对藏南桑桑地区雅鲁藏布江缝合带内沉积质混杂岩和特提斯喜马拉雅带内的砂岩样品进行碎屑锆石LA-ICPMS U-Pb年龄测试，限定沉积质混杂岩和特提斯喜马拉雅带的物源和沉积时代。对桑桑地区印度和亚洲的边界断裂仲巴-江孜断裂带内岩石中的多硅白云母和绢云母进行阶段加温40Ar-39Ar测年分析，限定该断裂的活动时间。

This dataset comprises numerical tabular text data. Detrital zircon LA-ICPMS U-Pb dating was carried out on sandstone samples from sedimentary mélange within the Yarlung Zangbo Suture Zone and the Tethyan Himalaya belt in the Sangsang area, southern Tibet, to constrain the provenance and depositional age of the sedimentary mélange and the Tethyan Himalaya belt. Step-heating 40Ar-39Ar dating analysis was conducted on phengite and sericite extracted from rocks in the Zhongba-Jiangzai Fault Zone, the boundary fault between the Indian and Asian plates in the Sangsang area, to constrain the activity timing of this fault.

搜集汇总

背景与挑战

背景概述

该数据集是一个地质年代学研究数据集，包含西藏南部桑桑地区仲巴-江孜逆冲断裂的40Ar-39Ar年龄数据和碎屑锆石U-Pb年龄数据。它通过对沉积质混杂岩和特提斯喜马拉雅带样品进行分析，旨在限定物源、沉积时代和断裂活动时间，为研究印度-亚洲初始碰撞和雅鲁藏布江缝合带的地质演化提供关键年代学证据。