共和盆地茫拉剖面沉积物粒度端元特征与末次盛冰期以来环境演化
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胡梦珺, 白清竹, 许澳康, 孟祥云
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Sediment end-member characteristics and paleoenvironment since the last glacial maximum in Mangla profile of Gonghe Basin
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Mengjun Hu, Qingzhu Bai, Aokang Xu, Xiangyun Meng
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表2 ML剖面 14C测年结果
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Table 2 14C dating results of the ML profile
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| 实验编号 | 样品深度 /cm | δ13C | PMC | 年龄 |
|---|
| δ13C/‰ | 1σ/‰ | PMC/% | 1σ/% | 14C年龄/ka BP | 1σ/a |
|---|
| XA12716 | 16~20 | -23.99 | 0.15 | 72.51 | 0.24 | 2.58 | 27 | | XA12717 | 76~80 | -23.35 | 1.00 | 34.76 | 0.17 | 8.49 | 40 | | XA12718 | 94~98 | -27.78 | 0.09 | 18.53 | 0.12 | 13.54 | 52 | | XA12721 | 200~204 | -26.92 | 0.14 | 16.09 | 0.12 | 14.68 | 61 | | XA12722 | 256~260 | -25.09 | 0.11 | 11.19 | 0.10 | 17.59 | 73 | | XA12719 | 482~486 | -26.87 | 0.10 | 9.85 | 0.10 | 18.62 | 83 | | XA12720 | 508~512 | -26.24 | 0.11 | 6.25 | 0.07 | 22.27 | 87 |
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