| 河北平原地下水氢、氧、碳、氯同位素组成的环境意义 |
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| 引用本文： | 刘存富,王佩仪,周炼. 河北平原地下水氢、氧、碳、氯同位素组成的环境意义[J]. 地学前缘, 1997, 0(Z1) |
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| 作者姓名： | 刘存富 王佩仪 周炼 |
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| 作者单位： | 中国地质大学 |
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| 摘 要： | 地下水是古气候信息的载体，它的化学成分和同位素组成可以反映古气候的演变。应用３Ｈ、１４Ｃ和３６Ｃｌ资料计算的河北平原地下水的年龄如下：第１含水组（Ｑ４）０～３ｋａ，第２含水组（Ｑ３）３～１００ｋａ，第３含水组（Ｑ２）１００～３００ｋａ，第４含水组（Ｑ１）３００～７００ｋａ。根据δ１８Ｏ和δＤ计算的地下水补给期的地面平均气温表明，第四纪以来河北平原气候环境是逐渐变暖的。根据第４至第１含水组（Ｑ１～Ｑ４）地下水δＤ＝－７０‰的等值线变化，认为第四纪以来，渤海海岸线逐渐由东向西移动。
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| 关 键 词： | 地下水 古气候信息 河北平原 ~(36)Cl ~(14)C ~3H ~(18)O D ~(37)Cl |
THE ENVIRONMENT SIGNIFICANCE OF H, O, C AND CL ISOTOPIC COMPOSITION IN GROUNDWATER OF HEBEI PLAIN |
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| Liu Cunfu Wang Peiyi Zhou Lian. THE ENVIRONMENT SIGNIFICANCE OF H, O, C AND CL ISOTOPIC COMPOSITION IN GROUNDWATER OF HEBEI PLAIN[J]. Earth Science Frontiers, 1997, 0(Z1) |
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| Authors: | Liu Cunfu Wang Peiyi Zhou Lian |
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| Abstract: | Groundwater is the carrier of paleoclimatical information. The chemical and isotopic composition of groundwater can reflect on paleoclimatical evolution. The groundwater ages of Hebei plain calculated by 3H, 14 C and 36 Cl data are shown as follows: the 1st aquifer group (Q 4) is 0￣3ka, the 2nd aquifer group (Q 3) 3￣100ka, the 3rd aquifer group (Q 2) 100￣300ka and the 4th aquifer group (Q 1) 300￣700ka. During the penetrating period of groundwater, the surface mean temperature calculated from δ 18 O and δD shows that the paleoclimatical environment of Hebei plain in Quaternary Period became warmer gradually. The change of δD value contour of groundwater within the 4th￣1st aquifer group (Q 1￣Q 4) manifests that the shore line of Bohai moved from east to west gradually in Quaternary Period. |
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| Keywords: | groundwater paleoclimatical information Hebei plain 36 Cl 14 C 3H 18 O D 37 Cl |
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