Identification of clays and Fe oxide minerals rich alteration zones using a Landsat 8 image of Pu Sam Cap area, Lai Chau

  • Affiliations:

    1 Institute of Geological Science - VAST, Hanoi, Vietnam
    2 General Department of Geology and Minerals of Vietnam, Hanoi, Vietnam
    3 Intergeo Geological Division, Hanoi, Vietnam

  • *Corresponding:
    This email address is being protected from spambots. You need JavaScript enabled to view it.
  • Received: 17th-Nov-2020
  • Revised: 28th-Feb-2021
  • Accepted: 30th-Mar-2021
  • Online: 30th-Apr-2021
Pages: 12 - 24
Views: 1844
Downloads: 1117
Rating: 5.0, Total rating: 112
Yours rating


The hydrothermal alteration zones are the important sign for mineral exploration and can be identified by remote sensing images completely, but this is limited due to the effect of vegetable. We address this problem by a method called “Directed Principal Component Analysis” (DPCA) that involves calculating principal components on two input band ratio images. One ratio is a geological discriminant, confused by the presence of vegetation; the second ratio is chosen for its suitability as a vegetation index. DPCA applied on Landsat 8 image in Pu Sam Cap area, Lai Châu characteristied by argilic alteration, sericite alteration, etc., with the typical minerals like kaolinite, illite, etc., and pyrite, chalcopyrite, magnetite; specularite, etc., The results have identified Fe - rich zones in Bai Bang and Nam Tra areas; clay minerals are concentrated mainly in Nam Tra area and along the main faults. The results are also compared with previous research data and fieldtrip data that shows similarity and feasibility. This paper indicated limitation of Landsat image such as spatial resolution, spectral resolution, etc., when applied in the tropical area.

How to Cite
Tran, H.Trung, Tran, C.Quoc, Tran, D.My, Bui, C.Minh, Chu, D.Van, Nguyen, T.Trung, Nguyen, Q.Cong, Nguyen, A.Duc and Bui, T.Phuong 2021. Identification of clays and Fe oxide minerals rich alteration zones using a Landsat 8 image of Pu Sam Cap area, Lai Chau (in Vietnamese). Journal of Mining and Earth Sciences. 62, 2 (Apr, 2021), 12-24. DOI:

Bill Howell, Nguyễn Thị Thục Anh, Matthew Farmer, Bùi Xuân Vinh, (2007). Some preliminary results on the gold exploration program of Pu Sam Cap project of Triple Plate Junction ltd, Việt Nam. Trung tâm thông tin, lưu trữ và tạp chí địa chất. 9tr.

Bùi Minh Chung, (2015). Đặc điểm quặng hóa vàng gốc khu Bãi Bằng, vùng Pu Sam Cáp, Tam Đường, Lai Châu. Luận văn thạc sĩ , Trường đại học Mỏ - Địa chất. 101tr.

Carranza, E. J. M., Hale, M., (2002). Mineral mapping with Landsat Thematic Mapper data for hydrothermal alteration mapping in heavily vegetated terrain. Int. J. Remote Sens. 23(22). 4827-4852

Clark, R. N., Swayze, G. A., Gallagher, A., King, T. V. V., Calvin, W. M., (1993). The U.S. geological survey digital spectral library: Version 1: 0.2 to 3.0 um. USGS Open File Report 93 - 592: U.S. Geological Survey. 1340p.

Công ty TPJ, (2014). Báo cáo thăm dò vàng và đa kim đi kèm vùng Pu Sam Cap, huyện Sìn Hồ và huyện Tam Đường, Lai Châu. Báo cáo nội bộ, Liên đoàn Intergeo và công ty Triple Plate Junction Limited.

Cro’sta, A. P., Moore, J. M., (1989). Enhancement of Landsat Thematic Mapper imagery for residual soil mapping in SW Minas Gerias State, Brazil: a prospecting case history in Greenstone belt terrain. Proceedings of the Seventh Thematic conference on Remote Sensing for Exploration Geology, Calgary, Alberta, Canada, 2 - 6 October 1989 (Ann Arbor, MI: Environmental Research Institute of Michigan). 1173-1187.

Crosta, A. P., C. R. de Souza, F. Azevedo and C. Brodie, (2003). Targeting key alteration minerals in epithermal deposit in Patagonia, Argentina, using ASTER imagery and principal component analysis. Int. J. Remote Sens 10. 4233-4240.

De Smith, M. J., Goodchild, M. F., Longley, P., (2007). Geospatial Analysis: A Comprehensive Guide to Principles, Techniques and Software Tools. Troubador Publishing Ltd.

Dương Quốc Lập (cb), (2002). Bản đồ địa chất và khoáng sản tờ Mường Mới. Trung tâm thông tin, lưu trữ và tạp chí địa chất. Tổng cục địa chất và khoáng sản Việt Nam.

Fraser, S. J., (1991). Discrimination and identidentification of Ferric Oxides using satellite Thematic Mapper data: a Newman case study. International Journal of Remote Sensing 12, 635 - 641.

Fraser, S. J., and Green, A. A., (1987). A software defoliant for geological analysis of band ratios. International Journal of Remote Sensing 8, 525 - 532.

Hunt, G., (1977). Spectral signatures of particulate minerals in the visible and near infrared. Geophysics 42, 501 - 513.

Hunt, G. R., Ashley, P., (1979). Spectra of altered rocks in the visible and near infrared. Econ. Geol 74. 1613-1629.

Hunt, G. R., Salisbury, J. W., Lenhoff, C. J., (1971). Visible and near - infrared spectra of minerals and rocks: III. Oxides and hydroxides. Mod. Geol 2. 195-205.

Johnson Richard A., Dean W. Wichern, (2007). Applied Multivariate Statistical Analysis, 6th Edition. Pearson Education, Inc ISBN 0 - 13 - 187715 - 1.

Leloup P. H., Arnaud N., R. Lacassin, J. R. Kienast, T. M. Harrison, T. T. Phan Trong, A. Replumaz, and P. Tapponnier, (2001). New constraints on the structure, thermochronology, and timing of the Ailao Shan - Red River shear Zone, SE Asia. Journal Of Geophysical Research, Vol. 106, No. B4, 6683 - 6732.

Pour Amin Beiranvand, Mazlan Hashim, John van Genderen, (2013). Detection of hydrothermal alteration zones in a tropical region using satellite remote sensing data: Bau goldfield, Sarawak, Malaysia. Ore Geology Reviews 54, 181-196.

Sabins Floyd F., (1999). Remote sensing for mineral exploration. Ore Geology Reviews 14, 157-183.

Shafaroudi, A. M., M. H. Karimpour, C. R. Stern and S. A. Mazaheri, (2009). Hydrothermal alteration mapping in SW Birjand, Iran, using the Advanced Spaceborne Thermal Emission and Reflection radiometer (ASTER) image processing. J. Applied Sci. 9. 829-842.

Singh, A. and Harrison, A., (1985). Standardized