TY - JOUR
T1 - Lithologic and structural mapping of the Abiete–Toko gold district in southern Cameroon, using Landsat 7 ETM+/SRTM
AU - Binam Mandeng, Eugène Pascal
AU - Bondjè Bidjeck, Louise Marie
AU - Takodjou Wambo, Jonas Didero
AU - Taku, Agbor
AU - Bineli Betsi, Thierry
AU - Solange Ipan, Antoinette
AU - Tchami Nfada, Lionel
AU - Bitom Dieudonné, Lucien
N1 - Publisher Copyright:
© 2017 Académie des sciences
PY - 2018/3/1
Y1 - 2018/3/1
N2 - The geology of the Abiete–Toko gold district in South Cameroon is investigated using a combination of Landsat 7 ETM+/SRTM image processing techniques, conventional geologic field mapping and geostatistical analysis. The satellite images were treated using Principal Component Analysis and Sobel filters to separate the background noise from lithotectonic structures which were matched with field data. The results show that this area has been affected by a polyphase deformation represented by S1 foliation, Sc1 schistosity, L1 lineation, S2 foliation, F2 folds, and F3 shear zones and faults. A detailed analysis of all the structures led to the identification of two major networks of dextral and sinistral shear zones oriented WNW–ESE and NE–SW, respectively. These results may serve in mining prospection, especially in the search for tectonically controlled primary mineralization and so may significantly guide the exploration of primary gold mineralization in the Abiete–Toko area subjected to years of artisanal gold mining.
AB - The geology of the Abiete–Toko gold district in South Cameroon is investigated using a combination of Landsat 7 ETM+/SRTM image processing techniques, conventional geologic field mapping and geostatistical analysis. The satellite images were treated using Principal Component Analysis and Sobel filters to separate the background noise from lithotectonic structures which were matched with field data. The results show that this area has been affected by a polyphase deformation represented by S1 foliation, Sc1 schistosity, L1 lineation, S2 foliation, F2 folds, and F3 shear zones and faults. A detailed analysis of all the structures led to the identification of two major networks of dextral and sinistral shear zones oriented WNW–ESE and NE–SW, respectively. These results may serve in mining prospection, especially in the search for tectonically controlled primary mineralization and so may significantly guide the exploration of primary gold mineralization in the Abiete–Toko area subjected to years of artisanal gold mining.
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U2 - 10.1016/j.crte.2017.11.003
DO - 10.1016/j.crte.2017.11.003
M3 - Article
AN - SCOPUS:85040915183
SN - 1631-0713
VL - 350
SP - 130
EP - 140
JO - Comptes Rendus - Geoscience
JF - Comptes Rendus - Geoscience
IS - 3
ER -