Publications (174)
ARTICLE
Geochemical feature of the Mangodara metavolcanic rocks within the Banfora Paleoproterozoic greenstone belts, southern Burkina Faso (West African Craton)
Bernadin Gnamou, Hermann Ilboudo, Wilfried Antoine Bassou Toe, Sâga Sawadogo
We present new geochemical data on the volcanic rocks of the Mangodara sector (southeastern edge of the Banfora Paleoproterozoic belt) in the West African Craton and discuss their petrology and geodynamic context. Three main volcanic units are described, notably andesites, dacites, and rhyolites. These lithologies are dominated by volcanoclast(...)
Volcanism, Subduction, Geodynamic, Paleoproterzozoic, West Africa Craton, Banfora Belt
COMMUNICATION
Caractères pétrographiques et géochimiques des granitoïdes Paléoprotérozoïques de Godé au Nord du degré carré de Léo, Centre-Ouest du Burkina Faso (Afrique de l’Ouest)
Adama Ouédraogo Yaméogo, Hubert Gounwendmanaghré Zongo, Pascal Ouiya, Omar Akonyiré , Abraham Seydoux Traoré , Saga Sawadogo, Séta Naba
Dans le domaine Baoulé-Mossi de la dorsale de Man/Léo, les granitoïdes sont d’âge Paléoprotérozoïque et constituent des volumes importants de roches qui recoupent les ceintures de roches vertes. Ainsi, les granitoïdes sont de bons marqueurs de la déformation crustale et leur étude contribue à élucider les processus géodynamiques qui s(...)
Burkina Faso, Dorsale de Man/Léo, géochimie, fusion partielle, Contexte Géotectonique
COMMUNICATION
Evolution structurale et déformation dans la région de Zorgho, Centre du Burkina Faso, Afrique de l’Ouest
Saga SAWADOGO, AdamaOuédraogo YAMEOGO, Séta NABA
Dans le domaine Paléoprotérozoïque de la dorsale de Man/Léo, les ceintures de roches vertes sont recoupées par des granitoïdes divers mis en place pendant l’orogenèse Eburnéenne. Durant cette période, les critères des phases de déformations identifiées varient d’une région à une autre dans le domaine Paléoprotéroz(...)
Zorgho, phase de déformation, Birimien, Couloir de Cisaillement
ARTICLE
Sorghum and cowpea intercropping response to woody residue amendments in Sahelian agro-ecosystems of Burkina Faso
Daouda Guébré, Salifou Traoré, Koulibi Fidèle Zongo, Edmond Hien
In West African agro-ecosystems, soils are inherently low in soil organic carbon decreasing the capacity of soils to sustain crop productivity. Woody Residues instead of being burnt or exported out of the cropping systems, can be managed to optimize soil organic carbon build-up, nutrient cycling and crop productivity. The aim of this study was(...)
Acrisols, Lixisols, Nodulation, Woody residues, Crop yields
COMMUNICATION
Phases de déformation et contrôle de la minéralisation aurifère des gisements de Bissa Gold au Centre-Nord du Burkina Faso
Séta NABA, Yacouba OUEDRAOGO, Pascal Ouiya, Hermann ILBOUDO
La mine d’or de Bissa au Centre-Nord du Burkina est la propriété de compagnie minière NordGold qui y exploitent quelques gisements. Les fosses qui font l’objet de la présente étude sont dans l’ordre en allant du NE au SW : Bissa Hill 1 et 2, IO-SE, SW et Z51A, Z51B, Z51E, Z52A, Z52B et Z52C.
Après les descriptions et mesures structurales (env(...)
Gisements aurifères, contrôle structurale, phases de déformation
ARTICLE
Influence of agroforestry systems on earthworm diversity and soil properties in a Sudano-Sahelian landscape
Adama Zoungrana , Mohamed Cissé, Mamoudou Traoré, Charles De Cannière , Babou André Bationo , Marjolein Visser, Salifou Traoré
Agroforestry systems promote a range of ecological base management to support sustainable agriculture. However, the influence of agroforestry management on soil biodiversity is still poorly investigated in SudanoSahelian landscapes. This study aims to guide sustainable management for soil biodiversity conservation in agroforestry systems by(...)
Agroforestry management, Earthworm ecological group, Soil macrofauna, Soil biodiversity
ARTICLE
Mineralogical study of phosphate rocks by quantitative rietveld refinement
Jean-Baptiste Zoungrana , Brahima Sorgho , Corneille Bakouan , Saga Sawadogo , Regie Dimanche Ouedraogo , Boubié Guel, Philippe Blanchart
Phosphorites from the Kodjari deposits of Burkina Faso are composite rocks with a fine-grained matrix phase and
dispersed larger grains. Chemical analysis by XRF revealed a CaO content of 35.98 – 41.33 wt% and a P2O5
content of 26.85 – 30.75 wt%. X-ray diffraction patterns show the abundant presence of carbonate-fluorapatit(...)
Phosphate, Mineralogy, X-ray diffraction, Rietveld refinement, Infra-red spectroscopy
ARTICLE
Hydrochemical Characterisation of Groundwaters in a Crystalline Basement Environment: The Case of Fractured Aquifers in the Poni Watershed in the South-West Region of Burkina Faso, West Africa
Hebie, A., Kafando, S., & Nakolendousse, S
The Poni watershed is located in the south-west of Burkina Faso. Its geology is made up of fractured crystalline and crystallophyllian basement, where fractured aquifers are the most exploited for water needs. The aim of this study is to determine the physico-chemical characteristics of the groundwater in the fractured aquifers of the Poni wat(...)
Fractured aquifer, Hydrochemistry, Hydrolysis of minerals, Surface input
ARTICLE
Landform-regolith Map of the Central Goren Greenstone Belt, Burkina Faso
Benjamin Sawadogo ; Dominique Chardon ; Ousmane Bamba
The map is based on extensive fieldwork and complementary photo-interpretation. Field mapping was undertaken at 1:10 000 scale on the basis of a Lidar digital elevation model converted into topographic sheets with 1-m contours. Coverage of the study area required 60 days of fieldwork during the years 2017 and 2018. Around 300 km of itinerary w(...)
Mapping, Geomorphology, Regolith, Laterite, Paleolandsurface, Geochemical anomaly
ARTICLE
Landform-regolith Map of the Central Goren Greenstone Belt, Burkina Faso
Benjamin Sawadogo ; Dominique Chardon ; Ousmane Bamba
The map is based on extensive fieldwork and complementary photo-interpretation. Field mapping was undertaken at 1:10 000 scale on the basis of a Lidar digital elevation model converted into topographic sheets with 1-m contours. Coverage of the study area required 60 days of fieldwork during the years 2017 and 2018. Around 300 km of itinerary w(...)
Mapping, Geomorphology, Regolith, Laterite, Paleolandsurface, Duricrust, Geochemical anomaly, Mineral exploration
ARTICLE
Landform-regolith Map of the Central Goren Greenstone Belt, Burkina Faso
Benjamin Sawadogo ; Dominique Chardon ; Ousmane Bamba
The map is based on extensive fieldwork and complementary photo-interpretation. Field mapping was undertaken at 1:10 000 scale on the basis of a Lidar digital elevation model converted into topographic sheets with 1-m contours. Coverage of the study area required 60 days of fieldwork during the years 2017 and 2018. Around 300 km of itinerary w(...)
Mapping, Geomorphology, Regolith, Laterite, Paleolandsurface, Duricrust, Geochemical anomaly, Mineral exploration
ARTICLE
Landform-regolith Map of the Central Goren Greenstone Belt, Burkina Faso
Benjamin Sawadogo ; Dominique Chardon ; Ousmane Bamba
The map is based on extensive fieldwork and complementary photo-interpretation. Field mapping was undertaken at 1:10 000 scale on the basis of a Lidar digital elevation model converted into topographic sheets with 1-m contours. Coverage of the study area required 60 days of fieldwork during the years 2017 and 2018. Around 300 km of itinerary w(...)
Mapping, Geomorphology, Regolith, Laterite, Paleolandsurface, Duricrust, Geochemical anomaly, Mineral exploration
ARTICLE
Fertilité des intrusions dans les porphyres cuprifères Paléoprotérozoïques de la ceinture de roches vertes Birimienne de Boromo, Burkina Faso, Craton Ouest Africain
Aristide BELEMSOBGO, Wendkouni Passecdé Pauline ZONGO, Urbain WENMENGA, Seta NABA
Le gisement de Cuivre-Or de Diénéméra-Gongondy est affilié à des porphyres cuprifères paléoprotérozoïques associés à la ceinture de roches vertes birimiennes de Boromo. La minéralisation est en relation avec un complexe intrusif basique à intermédiaire. La présente étude met en évidence le caractère fertile ou non de l’encaissant dans un envir(...)
diorite, Burkina Faso, porphyre cuprifère, Diénéméra-Gongondy, complexe filonien
ARTICLE
Structural Controls of the Expansion of Small‐Scale Artisanal Gold of Bouda Area (Kaya‐Goren Green Belt, Burkina Faso) From Remote Sensing
R. A. I. Dao , H. Ilboudo , and D. Baratoux
Small‐scale artisanal mining is a vital sector of the economy of Burkina Faso. This activity, correctly regulated, remains essential for the population despite security issues since 2015. Exploration of new areas for gold mining in this condition is difficult but essential to continue extractive activities. It is, therefore, important to defin(...)
Structural Controls, Artisanal Gold, Remote Sensing, Kaya‐Goren Green Belt, Bouda, Burkina Faso
ARTICLE
Caractérisation des processus orogéniques tardi-éburnéen par les mécanismes de mise en place des plutons alcalins de Wayen et de Déou
Abraham Seydoux TRAORE, Hermann ILBOUDO, Adama Ouédraogo YAMEOGO, Sâga SAWADOGO, Séta NABA
La structure et le contexte géodynamique de mise en place des granites alcalins ont été très peu étudiés.
Ces structures sont pourtant importantes pour interpréter les mécanismes de mise en place et déduire le régime tectonique qui a prévalu à la fin de l’orogénèse éburnéenne (actif ou inactif). L‘objectif de ce travail est d’utiliser la méth(...)
Wayen, Déou, syénite, granite alcalin, géodynamique, tardi-éburnéen, diapirisme