阿西克剖面记录的天山地区黄土磁学性质及其古气候意义

来源 :中国地球物理学会第二十六届年会暨中国地震学会第十三次学术大会 | 被引量 : 0次 | 上传用户：a479704375

【摘要】

：

过去近30年的研究表明,黄土高原地区风尘沉积物的磁化率值与成壤强度呈现良好的正相关关系,并且可以与深海洋同位素曲线对比,从而被广泛应用于古气候演化研究.学者们虽然认同黄土沉积物的磁化率可以反映古气候,并通过"成壤说"模式解释古土壤层磁化率增强的原因.对塔吉克斯坦黄土的研究也发现了类似规律.然而西伯利亚和阿拉斯加等地区的黄土地层研究发现,成壤强度与磁化率呈负相关关系的现象普遍存在.

【作者】

：

贾佳夏敦胜王博魏海涛

【机构】

：

兰州大学资源环境学院西部环境教育部重点实验室兰州730000 兰州大学资源环境学院西部环境教育部

【出处】

：

中国地球物理学会第二十六届年会暨中国地震学会第十三次学术大会

【发表日期】

：

2010年7期

【关键词】

：

黄土磁学性质古气候磁化率

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阿西克剖面记录的天山地区黄土磁学性质及其古气候意义

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