金沙江干热河谷华弹段黄土状土的成因、年龄及其古气候指示意义
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刘芬良, 高红山, 潘保田, 李宗盟
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The genesis， age and its paleoclimatic significance of loess-like sediments in the Huatan section of the dry-hot valley of the Jinsha River
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Fenliang Liu, Hongshan Gao, Baotian Pan, Zongmeng Li
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表1 金沙江干热河谷华弹段中黄土状土的OSL年代和相关参数
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Table 1 Quartz OSL ages and their related parameters for loess-like sediments samples of the Huatan section of Jinsha River Valley
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样品 编号 | 海拔 /m | 深度 /m | K /% | Th /(mg·kg-1) | U /(mg·kg-1) | 含水量 /% | 剂量率 /(Gy·ka-1) | 等效剂量 /Gy | 年代 /ka |
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| Lzu1131 | 665 | 1.2 | 1.57±0.05 | 8.14±0.26 | 2.02±0.08 | 10±5 | 2.73±0.14 | 0.60±0.03 | 0.22±0.02 | | Lzu1132 | 765 | 2.0 | 1.67±0.05 | 12.2±0.34 | 2.67±0.10 | 10±5 | 3.16±0.17 | 37.48±2.86 | 11.86±1.12 | | Lzu1133 | 865 | 2.5 | 1.56±0.05 | 12.6±0.35 | 2.92±0.11 | 10±5 | 3.16±0.18 | 65.19±1.61 | 20.67±1.26 | | Lzu1134 | 1 050 | 5.0 | 1.78±0.06 | 13.4±0.36 | 2.45±0.10 | 10±5 | 3.32±0.18 | 214.25±12.70 | 64.50±5.24 | | Lzu1135 | 1 355 | 5.0 | 1.89±0.06 | 14.0±0.38 | 2.46±0.10 | 20±5 | 3.06±0.16 | 248.23±21.53 | 81.23±8.24 | | Lzu1136 | 1 351 | 9.0 | 2.05±0.06 | 13.8±0.37 | 2.85±0.11 | 20±5 | 3.15±0.17 | 386.08±14.68 | 122.71±8.12 |
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