青藏高原东北部全新世常量元素地球化学特征及环境演变
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胡梦珺, 庄静, 孙文丽, 郑登友, 吉天琪, 许澳康
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Geochemical characteristics of major elements and environmental evolution in the Holocene in the northeastern Tibetan Plateau
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Mengjun Hu, Jing Zhuang, Wenli Sun, Dengyou Zheng, Tianqi Ji, Aokang Xu
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表2 ZK剖面 14C测年数据
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Table 2 The data of 14C ages of the ZK profile
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深度/cm | 样品编号 | δ13C/‰ | pMC/% | 14C年龄/a BP | 校正年代 /a BP |
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δ13C | 误差(1σ) | pMC | 误差(1σ) | 14C年龄 | 误差(1σ) |
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30~34 | XA12698 | -25.58 | 0.14 | 92.09 | 0.36 | 662 | 31 | 664 | 73~75 | XA12699 | -24.68 | 0.09 | 82.45 | 0.31 | 1 550 | 30 | 1 513 | 99~103 | XA12700 | -24.64 | 0.08 | 80.16 | 0.27 | 1 777 | 27 | 1 709 | 171~176 | XA12701 | -24.52 | 0.09 | 74.22 | 0.24 | 2 395 | 26 | 2 461 | 213~218 | XA12702 | -24.79 | 0.09 | 62.11 | 0.30 | 3 826 | 39 | 4 290 | 262~267 | XA12703 | -25.88 | 0.10 | 51.07 | 0.20 | 5 399 | 31 | 6 277 | 282~286 | XA12704 | -24.94 | 0.08 | 48.51 | 0.22 | 5 811 | 36 | 6 665 | 332~337 | XA12705 | -26.16 | 0.09 | 35.18 | 0.19 | 8 393 | 43 | 9 480 |
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