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九江下蜀黄土和红土的化学风化特征
曾方明
2018-03-15
Source Publication盐湖研究
Volume26Issue:01Pages:32-38
Other Abstract南方下蜀黄土和红土为研究亚热带地区的古风化强度提供了良好的地质记录。对九江两个下蜀黄土和红土剖面(JJ3和JJ4)的色度、磁化率和常量元素组成进行了研究。JJ3和JJ4剖面沉积物的磁化率和红度(a*)变化趋势较一致。与上地壳相比,九江下蜀黄土与红土的Ca、Na重度亏损,K轻度亏损。九江下蜀黄土的CIA值小于80,而红土的CIA值大于80。Rb/Sr比值和CIA值显著正相关(R2为0.95),二者可有效指示下蜀黄土和红土的化学风化程度。
Keyword下蜀黄土 红土 古环境 化学风化 九江
Language中文
Document Type期刊论文
Identifierhttp://ir.isl.ac.cn/handle/363002/6837
Collection中国科学院青海盐湖研究所
Recommended Citation
GB/T 7714
曾方明. 九江下蜀黄土和红土的化学风化特征[J]. 盐湖研究,2018,26(01):32-38.
APA 曾方明.(2018).九江下蜀黄土和红土的化学风化特征.盐湖研究,26(01),32-38.
MLA 曾方明."九江下蜀黄土和红土的化学风化特征".盐湖研究 26.01(2018):32-38.
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