| 商州黄土中CaCO_3含量及其环境意义 |
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| 引用本文： | 张卓,李晓刚.商州黄土中CaCO_3含量及其环境意义[J].甘肃科学学报,2014(4):77-80. |
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| 作者姓名： | 张卓 李晓刚 |
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| 作者单位： | 商洛学院城乡发展与管理工程系,陕西商洛726000 |
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| 基金项目： | 2013年陕西省大学生创新创业训练计划项目（1909）;商洛学院科研项目服务地方专项资助（12SKY-FWDF009） |
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| 摘 要： | 以东秦岭南侧商州郭村黄土—古土壤剖面为研究对象,以10cm间隔进行系统采样,利用气量法对沉积物中CaCO3含量进行测定,获得数据117个.结果表明,商州郭村剖面古土壤层中CaCO3含量小于黄土层中CaCO3含量,并且与磁化率曲线对比良好,可作为商州地区研究古气候的一个重要的代用性指标.同时,其变化趋势揭示了商州地区近50万年来气候冷暖旋回的变化规律.
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| 关 键 词： | 黄土—古土壤 CaCO含量 商州 |
CaC03 Content in Loess of Shangzhou and Its Environmental Significance |
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| ZHANG Zhuo,LI Xiao-gang.CaC03 Content in Loess of Shangzhou and Its Environmental Significance[J].Journal of Gansu Sciences,2014(4):77-80. |
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| Authors: | ZHANG Zhuo LI Xiao-gang |
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| Institution: | (Department of Urban and Rural Development and Management Engineering ,Shangluo University, Shangluo 726000,China) |
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| Abstract: | The CaCO3 content in loess and paleosol in Guocun,Shangzhou was measured by taking systematic samples at an interval of 10 cm and using the gather-gas method,and 117 figures were collected. The results show that the CaCO3 content in section paleosol is less than that in loess in Guocun, Shangzhou,which are in good agreement with the curve of magnetic susceptibility. The results can be seen as a significant proxy for the investigation of paleoclimate in Shangzhou. In addition, the change of the CaCO3 content reveals a regular pattern of cold and warm climate over 50×10^3 a in Shangzhou. |
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| Keywords: | Loess-paleosol CaCO3 content Shangzhou |
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