Iron oxide precipitate as an indicator of redox conditions within a landslide slip zone

摘要：

Orange iron oxide precipitates, occurring at the mouth of groundwater drainage tubes from the Kumanashi Landslide slip zone in Toyama prefecture, Japan, were analyzed for chemical composition and iron speciation using XRF, XRD and M(o)ssbauer spectroscopy. The precipitate was determined to be hydrous ferric oxide (HFO) containing other elements such as phosphorous, silica and calcium. The occurrence of HFO may indicate an oxidation of ferrous iron in the percolated groundwater from the slip zone, and such ferrous iron may further indicate a reducing condition within the slip zone.

作者: G.D.Zheng Y.H.Lang S.Y.Liang

作者单位: Key Laboratory of Gas Geochemistry, Institute of Geology and Geophysics, Chinese Academy of Science, Institute of Geohazards Protection, China Three Gorges University, Yichang, P.R.China College of Civil Engineering and Mechanics, Lanzhou University, Lanzhou, P.R.China

会议类型: 国际会议

会议名称: 第十二届水-岩相互作用国际研讨会(P0roceedings of the 12th International Symposium on Water-Rock Interaction)

会议地点: 昆明

会议语种:英文

页码: 995-998

在线出版日期: 2007-07-31（万方平台首次上网日期，不代表论文的发表时间）