干旱区生态环境知识资源中心(Arid): Integration of Landsat 8, gravity, and field data for exploration of gold mineralization in Gamba District, Northern Cameroon

Arid

DOI	10.1002/gj.4197
	Integration of Landsat 8, gravity, and field data for exploration of gold mineralization in Gamba District, Northern Cameroon
	Ketchaya, Yanick Blaise; Dong, Guochen; Fotze, Quentin Marc Anaba; Carrino, Thais Andressa; Mandeng, Eugene Pascal Binam; Lemdjou, Yanick Brice; Assie, Konan Roger; Fodoue, Yaya; Wadjou, Jacques Wassouo
通讯作者	Dong, GC (corresponding author), China Univ Geosci, Sch Earth Sci & Resources, Beijing 100083, Peoples R China.
来源期刊	GEOLOGICAL JOURNAL
ISSN	0072-1050
EISSN	1099-1034
出版年	2021
卷号	56 期号:9 页码:4788-4808
英文摘要	Remote sensing is a robust and useful tool for providing high-resolution image data and enabling reliable geological mapping during the initial stage of mineral exploration. One of its main applications is the extraction of lineaments and to locate alteration areas to target gold exploration. It has been long used in the Pan-African belt of Cameroon to identify a hydrothermal alteration and a great number of lineaments associated with mineralizations. The study area located in the Pan-African belt hosts numerous alluvial gold deposits where the primary mineralization was still largely poorly unknown until now, due to deep weathering. Therefore, remote sensing combined with field data is useful for targeting potential zones of primary gold resources involved in the hydrothermal and lineament systems. In this study, remote sensing data from Landsat 8 imagery were selected to map the distribution of hydrothermal minerals, and gravity data were interpreted for highlighting structural patterns related to the control of high-potential zone for gold mineralization, generating a mineral prospect map. The lineaments network shows directions ranging from ENE-WSW to E-W, with main direction N45 degrees and a secondary striking N275 degrees. Image enhancement/processing techniques included the application of band ratio and principal component analysis that were helpful to demarcate potential alteration zones marked by iron oxide/hydroxides in which haematite and pyrite are used as proximal alterations and hydroxyl-bearing minerals in which sericite (muscovite) is used as a marker of proximal alteration, while chlorite, epidote, biotite, quartz, and calcite are used as distal alteration zone, as described by field and petrographic data. The identified alteration zones display a high consistency with the known locations of gold occurrences (mining sites) and closely concordant with large-scale gold mineralization in the study area. This study presents an integrated approach of Landsat 8 imagery with gravity data and field data for discovering primary mineral resources in a deep weathering area.
英文关键词	alteration mapping band ratio Crosta technique gold mineralization Landsat 8 OLI Northern Cameroon
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000671572100001
WOS关键词	CENTRAL EASTERN DESERT ; U-PB ; HYDROTHERMAL ALTERATION ; ALTERATION MINERALS ; SOUTHERN CAMEROON ; AFRICAN BELT ; CONGO CRATON ; SHEAR ZONE ; LINEAMENTS ; EVOLUTION
WOS类目	Geosciences, Multidisciplinary
WOS研究方向	Geology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/352211
作者单位	[Ketchaya, Yanick Blaise; Dong, Guochen; Lemdjou, Yanick Brice] China Univ Geosci, Sch Earth Sci & Resources, Beijing 100083, Peoples R China; [Ketchaya, Yanick Blaise; Lemdjou, Yanick Brice] Univ Yaounde I, Fac Sci, Dept Earth Sci, Yaounde, Cameroon; [Fotze, Quentin Marc Anaba; Mandeng, Eugene Pascal Binam; Fodoue, Yaya; Wadjou, Jacques Wassouo] Ctr Geol & Min Res, Garoua, Cameroon; [Carrino, Thais Andressa] Fed Univ Pemambuco, Dept Geol, Recife, PE, Brazil; [Assie, Konan Roger] China Univ Geosci, Inst Earth Sci, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Ketchaya, Yanick Blaise,Dong, Guochen,Fotze, Quentin Marc Anaba,et al. Integration of Landsat 8, gravity, and field data for exploration of gold mineralization in Gamba District, Northern Cameroon[J],2021,56(9):4788-4808.
APA	Ketchaya, Yanick Blaise.,Dong, Guochen.,Fotze, Quentin Marc Anaba.,Carrino, Thais Andressa.,Mandeng, Eugene Pascal Binam.,...&Wadjou, Jacques Wassouo.(2021).Integration of Landsat 8, gravity, and field data for exploration of gold mineralization in Gamba District, Northern Cameroon.GEOLOGICAL JOURNAL,56(9),4788-4808.
MLA	Ketchaya, Yanick Blaise,et al."Integration of Landsat 8, gravity, and field data for exploration of gold mineralization in Gamba District, Northern Cameroon".GEOLOGICAL JOURNAL 56.9(2021):4788-4808.