Landslide Process Revealed by Mineralogical Properties of Landslide Deposits in the Sa Pa District, Vietnam

Takanari Yamasaki; Go Sato; Takashi Kimura; Hoang Viet Hung; Nguyen Duc Manh; Takatsugu Ozaki; Osamu Yokoyama; Shinichi Tosa; Akihiko Wakai

doi:10.20965/jdr.2021.p0556

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JDR Vol.16 No.4 pp. 556-560

(2021)

doi: 10.20965/jdr.2021.p0556

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Landslide Process Revealed by Mineralogical Properties of Landslide Deposits in the Sa Pa District, Vietnam

Takanari Yamasaki^1, Go Sato^1,†, Takashi Kimura^2, Hoang Viet Hung^3, Nguyen Duc Manh^4, Takatsugu Ozaki^5, Osamu Yokoyama^6, Shinichi Tosa^6, and Akihiko Wakai^*5

^*1Graduate School of Environmental Informations, Teikyo Heisei University
4-21-2 Nakano, Nakano-ku, Tokyo 164-8530, Japan

^†Corresponding author

^*2Graduate School of Agriculture, Ehime University, Ehime, Japan

^*3Faculty of Civil Engineering, Thuyloi University, Hanoi, Vietnam

^*4Department of Geotechnical Engineering, University of Transport and Communications, Hanoi, Vietnam

^*5Graduate School of Science and Technology, Gunma University, Gunma, Japan

^*6Japan Conservation Engineers & Co., Ltd., Tokyo, Japan

Received:

December 13, 2020

Accepted:

March 6, 2021

Published:

June 1, 2021

Keywords:

weathered granitic rock, terraced paddy fields, XRD, clay mineral, Hau Thao Village

Abstract

Hau Thao Village is located in Sa Pa Prefecture, in northern Vietnam. The village contains one of the most picturesque landscapes with terraced paddy fields located in landslide topography formed on a gentle slope. However, the creation of the topography has not been sufficiently clarified. In this study, samples of soil and stone are taken from two landslide areas in Hau Thao Village for mineral composition analysis, clarifying that the sauce rock of the deposits comprising the landslide areas is made up of granitoids, forming the upper slope above the fault located in the hinterland. The landslides occurring in Hau Thao Village are caused by the remobilization of the secondary deposits transported from the upper part of the slope by debris flow.

Cite this article as:

T. Yamasaki, G. Sato, T. Kimura, H. Hung, N. Manh, T. Ozaki, O. Yokoyama, S. Tosa, and A. Wakai, “Landslide Process Revealed by Mineralogical Properties of Landslide Deposits in the Sa Pa District, Vietnam,” J. Disaster Res., Vol.16 No.4, pp. 556-560, 2021.

Data files:

References

[1] D. M. Nguyen and Q. H. Tran, “Features of large-scale landslide at Hau Thao Area, Sa Pa Town, Lao Cai Province,” P. Duc Long and N. T. Dung (Eds.), “Geotechnics for sustainable infrastructure development (Lecture notes in civil engineering Vol.62),” pp. 917-922, Springer, doi: 10.1007/978-981-15-2184-3_119, 2020.
[2] T. V. Tran, V. H. Hoang, H. D. Pham, and G. Sato, “Use of Scoops3D and GIS for the assessment of slope stability in three-dimensional: A case study in Sapa, Vietnam,” Proc. of the Int. Conf. on Innovations for Sustainable and Responsible Mining (ISRM 2020), Vol.2, pp. 210-229, doi: 10.1007/978-3-030-60269-7_11, 2020.
[3] Vietnam Geological and Mineral Department, “Geological and mineral map of Vietnam 1:200,000 Kim Binh-Lao Cai sheet,” 2005.
[4] N. Q. Cuong and W. A. Zuchiewicz, “Morphotectonic properties of the Lo River Fault near Tam Dao in North Vietnam,” Natural Hazard and Earth System Sciences, Vol.1, Nos.1-2, pp. 15-22, doi: 10.5194/nhess-1-15-2001, 2001.
[5] W. Zuchiewicz, N. Q. Cu’ò’ng, J. Zasadni, and N. T. Yêm, “Late Cenozoic tectonics of the Red River Fault Zone, Vietnam, in the light of geomorphic studies,” J. of Geodynamics, Vol.69, pp. 11-30, doi: 10.1016/j.jog.2011.10.008, 2013.
[6] M. Utada, “Alteration of Rokko Granites: Mineralogical and magnetic susceptibility changes,” J. of Geography, Vol.112, No.3, pp. 360-371, doi: 10.5026/jgeography.112.3_360, 2003 (in Japanese).

This article is published under a Creative Commons Attribution-NoDerivatives 4.0 Internationa License.

[1] [1] D. M. Nguyen and Q. H. Tran, “Features of large-scale landslide at Hau Thao Area, Sa Pa Town, Lao Cai Province,” P. Duc Long and N. T. Dung (Eds.), “Geotechnics for sustainable infrastructure development (Lecture notes in civil engineering Vol.62),” pp. 917-922, Springer, doi: 10.1007/978-981-15-2184-3_119, 2020.

[2] [2] T. V. Tran, V. H. Hoang, H. D. Pham, and G. Sato, “Use of Scoops3D and GIS for the assessment of slope stability in three-dimensional: A case study in Sapa, Vietnam,” Proc. of the Int. Conf. on Innovations for Sustainable and Responsible Mining (ISRM 2020), Vol.2, pp. 210-229, doi: 10.1007/978-3-030-60269-7_11, 2020.

[3] [3] Vietnam Geological and Mineral Department, “Geological and mineral map of Vietnam 1:200,000 Kim Binh-Lao Cai sheet,” 2005.

[4] [4] N. Q. Cuong and W. A. Zuchiewicz, “Morphotectonic properties of the Lo River Fault near Tam Dao in North Vietnam,” Natural Hazard and Earth System Sciences, Vol.1, Nos.1-2, pp. 15-22, doi: 10.5194/nhess-1-15-2001, 2001.

[5] [5] W. Zuchiewicz, N. Q. Cu’ò’ng, J. Zasadni, and N. T. Yêm, “Late Cenozoic tectonics of the Red River Fault Zone, Vietnam, in the light of geomorphic studies,” J. of Geodynamics, Vol.69, pp. 11-30, doi: 10.1016/j.jog.2011.10.008, 2013.

[6] [6] M. Utada, “Alteration of Rokko Granites: Mineralogical and magnetic susceptibility changes,” J. of Geography, Vol.112, No.3, pp. 360-371, doi: 10.5026/jgeography.112.3_360, 2003 (in Japanese).

Landslide Process Revealed by Mineralogical Properties of Landslide Deposits in the Sa Pa District, Vietnam

Takanari Yamasaki*1, Go Sato*1,†, Takashi Kimura*2, Hoang Viet Hung*3, Nguyen Duc Manh*4, Takatsugu Ozaki*5, Osamu Yokoyama*6, Shinichi Tosa*6, and Akihiko Wakai*5

Takanari Yamasaki^1, Go Sato^1,†, Takashi Kimura^2, Hoang Viet Hung^3, Nguyen Duc Manh^4, Takatsugu Ozaki^5, Osamu Yokoyama^6, Shinichi Tosa^6, and Akihiko Wakai^*5