TY - JOUR
T1 - Iron oxide precipitate in seepage of groundwater from a landslide slip zone
AU - Zheng, Guodong
AU - Lang, Yuhua
AU - Miyahara, M.
AU - Nozaki, T.
AU - Haruaki, T.
N1 - Funding Information:
Acknowledgments We are grateful to the editor and two anonymous reviewers for the critical and constructive comments on the manuscript. We would also like to thank Dr. K. Shinot-suka and Dr. Q. Chang in JAMSTEC for helping with the heating experiment; Mr. J. Rowlands in the Department of Materials and Minerals at Cardiff University (Wales) for XRD analysis. Special thanks must go to Dr. S. Glasauer at the Uni- versity of Guelph for her available comments and Miss K.M. Brice for the text reading. GZ would like to acknowledge the supports from the Fellowship (P03066) of Japan Society for the Promotion of Science (JSPS) for the research in Hiroshima University, Japan during 2003–2005 and from the ‘‘100 Talent Project’’ program from Chinese Academy of Sciences in 2006– 2009.
PY - 2007/2
Y1 - 2007/2
N2 - Orange precipitate was collected at the mouth of groundwater drainage tubes from the Kumanashi Landslide slip zone in Toyama prefecture, Northwest Japan. Data from XRF, X-ray diffraction, and Mössbauer spectroscopy determined the precipitate as hydrous ferric oxide (HFO) bearing multi-elements such as phosphorous, silica, calcium, etc. The occurrence of HFO may indicate an oxidation of ferrous iron in the percolated groundwater from the slip zone. Moreover, the precipitate iron should be mobilized with groundwater circulation from the slip zone, whose reducing condition was determined by the iron speciation on the same type of landslide profiles within the study area in previous studies. The HFO precipitate may be considered as a secondary reliable indicator to locate the seepage of a slip zone on surface, especially for a landslide newly investigated under wet-warm climate.
AB - Orange precipitate was collected at the mouth of groundwater drainage tubes from the Kumanashi Landslide slip zone in Toyama prefecture, Northwest Japan. Data from XRF, X-ray diffraction, and Mössbauer spectroscopy determined the precipitate as hydrous ferric oxide (HFO) bearing multi-elements such as phosphorous, silica, calcium, etc. The occurrence of HFO may indicate an oxidation of ferrous iron in the percolated groundwater from the slip zone. Moreover, the precipitate iron should be mobilized with groundwater circulation from the slip zone, whose reducing condition was determined by the iron speciation on the same type of landslide profiles within the study area in previous studies. The HFO precipitate may be considered as a secondary reliable indicator to locate the seepage of a slip zone on surface, especially for a landslide newly investigated under wet-warm climate.
KW - Hydrous ferric oxide
KW - Japan
KW - Kumanashi Landslide
KW - Redox condition
KW - Slip zone
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U2 - 10.1007/s00254-006-0442-7
DO - 10.1007/s00254-006-0442-7
M3 - Article
AN - SCOPUS:33846948266
VL - 51
SP - 1455
EP - 1464
JO - Environmental Geology
JF - Environmental Geology
SN - 1866-6280
IS - 8
ER -