Variation of iron species in sliding mud

作     者：Guodong Zheng Sheng Xu Yuhua Lang Zifang Meng 

作者机构：Chinese Acad SciState Key Lab Gas GeochemLanzhou Inst GeolLanzhou 730000China 

出 版 物：《Chinese Science Bulletin》 (Chin. Sci. Bull.)

年 卷 期：2002年第47卷第23期

页      面：2018-2024页

核心收录：

学科分类：070903[理学-古生物学与地层学(含：古人类学)] 0709[理学-地质学] 07[理学] 

主　　题：sliding mud Mossbauer spectroscopy iron speciation total iron slip zone redox condition 

摘      要：Results of Mossbauer spectroscopy and ICP-AES measurement revealed a special distribution pattern of iron species in four crossing profiles of the Tertiary Formation Type of Landslides in Japan. In comparison with host rocks, the sliding mud in the landslide slip zone contains the higher ferrous iron content and/or trace pyrite, which indicates that the forming environment was relatively reducing. The total iron content also increased with an increase in ferric iron and pyrite, in contrast, decreased with an increase in ferrous iron content. The deep-gray and black mud layers formed and accumulated in various volumes within landslide slip zones are treated as the basic criteria for the slipping activity, because the soft mud saturated with groundwater is easy to create a plastic deformation.