| 江西九江红土堆积的粒度特征及成因研究 |
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| 引用本文： | 李敬卫,乔彦松,王燕,彭莎莎.江西九江红土堆积的粒度特征及成因研究[J].地质力学学报,2009,15(1):95-104. |
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| 作者姓名： | 李敬卫 乔彦松 王燕 彭莎莎 |
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| 作者单位： | 1.中国地质科学院地质力学研究所, 北京 100081 |
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| 基金项目： | 国家自然科学基金资助项目(40472088);;中国地质调查局地质调查项目(1212010741403);;地质力学研究所基本科研业务费项目(DZLXJK200711) |
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| 摘 要： | 在南方红土的研究中, 区分不同地区红土地层的成因类型是研究区域古环境演化的关键。以江西九江红土剖面为例, 通过系统的粒度分析, 并与西峰黄土、古土壤样品及代表性河、湖相沉积的粒度特征进行对比, 结果表明, 九江红土与西峰黄土、古土壤样品具有相似的粒度分布特征, 而与河、湖相沉积有较大区别。其中, 九江剖面上部的下蜀土与西峰黄土粒度特征相近, 而剖面下部的网纹红土与西峰古土壤样品更为相似, 表明江西九江红土堆积与中国北方黄土一样属于风尘堆积。研究成果为古环境信息的进一步提取奠定了基础。
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| 关 键 词： | 江西九江 网纹红土 下蜀土 粒度特征 成因 |
| 收稿时间： | 2008-10-07 |
Aeolian origin of the red earth tormation in Jiujiang City of Jiangxi Province, China: Evidence from grain-size analysis |
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| LI Jing-wei,QIAO Yan-song,WANG Yan and PENG Sha-sha.Aeolian origin of the red earth tormation in Jiujiang City of Jiangxi Province, China: Evidence from grain-size analysis[J].Journal of Geomechanics,2009,15(1):95-104. |
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| Authors: | LI Jing-wei QIAO Yan-song WANG Yan and PENG Sha-sha |
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| Institution: | 1.Institute of Geomechanics, Chinese Academy of Geological Sciences, Beijing 100081, China2.Key Laboratory of Neotectonic Movement & Geohazard, Beijing 100081, China3.College of Marine Geo-science, Ocean University of China, Qingdao 266003, China |
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| Abstract: | The Red Earth Formation in the middle-lower Yangtze River is an important pedo-stratigraphical unit in southern China.This formation is among the best geological records of Quaternary environment that bear information of climate changes for the subtropical zone of China.The study on the origin of this formation is the basis for further investigation of the paleoclimatic information.In this study,grain-size was analyzed on the samples from Jiujiang section at Jiujiang city of Jiangxi Province,and the result ... |
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| Keywords: | Jiujiang city of Jiangxi Province vermiculated red soil grain-size origin |
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