Publications (169)
ARTICLE
Cinématique des zones de cisaillement du Centre du Burkina Faso, Craton Ouest Africain : une approche par l'Anisotropie de la Susceptibilité Magnétique (ASM) et les microstructures
Saga SAWADOGO , Adama Ouédraogo YAMEOGO, Abraham Seydoux TRAORE et Seta NABA
Dans le but de caractériser la cinématique dominante le long des zones de cisaillement du domaine
Paléoprotérozoïque de la dorsale de Man/Léo, la présente étude a été entreprise dans la région centre du Burkina Faso sur une superficie d'environ 37036,96 km 2 . Des échantillons ont été prélevés de préférence sur les zones de ci(...)
zone de cisaillement transcurrent, Fabriques, anisotropie de la susceptibilité magnétique (ASM), Microstructures
ARTICLE
IDENTIFICATION OF MAIN AND RELATED STRUCTURES THAT CONTROL MINERALIZATION IN NASSARA GOLD DISTRICT, SOUTHWESTERN BURKINA FASO (WEST AFRICA).
Pascal OUIYA , Séta NABA, Hermann ILBOUDO, Sâga SAWADOGO, Adama Ouédraogo YAMEOGO
Nassara gold district is located at southwestern of Gaoua and precisely in the south part of Boromo greenstone belt. The combined study of the anisotropy of magnetic susceptibility, microstructures examination permitted us to identify four phases of deformation in relation to the orogeny eburnean. Field overlap relationships and microstructure(...)
Burkina Faso, Boromo belt, Nassara shear zone, anisotropy of magnetic susceptibility (AMS), Satellite zone
ARTICLE
Géologie des minéralisations (Au) en veines de Mouro dans le système Birimien de Banfora, Burkina Faso - Afrique de l’Ouest : approche gîtologique par exploitation d’un site d’orpaillage.
Hermann ILBOUDO, Sâga SAWADOGO, Pascal OUIYA, Artio HIEN, Faustin Honoré YAMÉOGO
L’exploitation artisanale de l’or date de l’antiquité. Cette activité demeure aujourd’hui malgré les techniques modernes mises en œuvre dans l’industrie minière. Notre travail s’est fixé pour but de caractériser l’environnement géologique et la minéralisation du site aurifère de Mouro, dépourvu d’affleurements et très perturbé par l’action ant(...)
Burkina Faso, Mouro, Ceinture de Banfora, Birimien, Minéralisation, Veine de quartz, orpaillage, altération
COMMUNICATION
Erosion des sols dans la zone soudano-sahélienne : utilisation des amendements ligneux comme réponse adaptative paysanne.
Daouda GUEBRE, Salifou Traoré, Der Somé, Edmond Hien,
Afin de contribuer à la gestion durable des sols, cette étude vise à déterminer en quoi l’épandage
de bois et rameaux fragmentés (BRF) de Piliostigma reticulatum (D.C.) Hochst sur des sols,
améliore la conservation des sols. L'expérience a été conduite en zone soudano-sahélienne du
Burkina Faso à travers la mise en place d’un essai constitu(...)
Agroécologie, Macrofaune, Agrégats, Humidité du sol, Stabilité structurale
ARTICLE
GHASP: an H α kinematical survey of spiral galaxies - XIII. Distribution of luminous and dark matter in spiral and irregular nearby galaxies using H α and H I rotation curves and WISE photometry
M. Korsaga, B. Epinat, P. Amram, C. Carignan, P. Adamczyk and A. Sorgho
We present the mass models of 31 spiral and irregular nearby galaxies obtained using hybrid rotation curves (RCs) combining high-resolution GHASP Fabry-Perot Hα RCs and extended WHISP H I ones together with 3.4 μm WISE photometry. The aim is to compare the dark matter (DM) halo properties within the optical radius using only H α RCs with the e(...)
Mots clés non renseignés
ARTICLE
GHASP: an H α kinematical survey of spiral galaxies - XIII. Distribution of luminous and dark matter in spiral and irregular nearby galaxies using H α and H I rotation curves and WISE photometry
M. Korsaga, B. Epinat, P. Amram, C. Carignan, P. Adamczyk and A. Sorgho
We present the mass models of 31 spiral and irregular nearby galaxies obtained using hybrid rotation curves (RCs) combining high-resolution GHASP Fabry-Perot Hα RCs and extended WHISP H I ones together with 3.4 μm WISE photometry. The aim is to compare the dark matter (DM) halo properties within the optical radius using only H α RCs with the e(...)
Mots clés non renseignés
ARTICLE
New approach of interpretive method of hydrogeological prospecting and electrical resistivity geophysics data: improvement of water drilling siting techniques in the field of crystalline soils of Burkina Faso (West Africa)
Césard Millogo, Samuel Nakolendoussé, Sâga Sawadogo, Julien Nikiéma
This work is a contribution to the improvement of bore holes siting techniques through a new interpretative approach to hydrogeological and geophysical electrical resistivity prospecting data. Its objective is to make drinking water accessible to all through the reduction of negative drilling rates, which is very recurrent in the crystalline t(...)
Basement acquifers, flow, granitoïds, schists, alteration, geophysical surveys and geoelectric surveys
ARTICLE
Cartographie des accidents géologiques par imagerie satellitaires et géophysique aéroportée, et analyse statistique des rréseaux de fractures du socle birimien du bassin versant du lac Bam (centre nord du Burkina).
Césard Millogo, Samuel Nakolendoussé, Sâga Sawadogo
La maîtrise des différents réseaux de fractures est fondamentale à la connaissance des aquifères de socle cristallin. La présente étude a cartographié et caractérisé le réseau de fractures du socle Birimien du bassin versant du lac Bam à partir des données d’images satellitaires (Landsat 8 et Aster) et de géophysique aéroportée. Les différente(...)
aquifère, linéaments, socle cristallin, image satellitaire, géophysique aéroportée
ARTICLE
Early observations of the MHONGOOSE galaxies: getting ready for MeerKAT
A. Sorgho, C. Carignan, D. J. Pisano, T. Oosterloo, W. J. G. de Blok, M. Korsaga, N. M. Pingel, Amy Sardone, S. Goedhart, S. Passmoor, A. Dikgale and S. K. Sirothia
We present early observations of 20 galaxies in the MHONGOOSE survey galaxies using KAT-7, the GBT, and MeerKAT. We present the best calibrators for five of the MHONGOOSE galaxies observed with the KAT-7, and search for signs of gas accretion in the GBT data, down to 3σ column density levels of 2.2× 10^{18} cm^{-2} over a 20 km s-1 line width,(...)
Mots clés non renseignés
ARTICLE
GEOLOGIE ET CHRONOLOGIE DE MISE EN PLACE DES FORMATIONS PALEOPROTEROZOIQUES DE LA REGION DU TOUGOURY, CEINTURE METALLOGENIQUE DE BOUROUM (CENTRE-NORD BURKINA FASO-AFRIQUE DE L’OUEST)
Herman Ilboudo, Sâga Sawadogo, Nicolas Kagambega, S. Toubiana, B. Nonguierma
Dans le secteur de Tougoury localisé dans le centre Nord du Burkina, les investigations géologiques basées sur une reconnaissance de terrain, renforcée par des études de lames minces, ont permis d’identifier et de caractériser plusieurs entités géologiques malgré la rareté des affleurements. Il s’agit de formations volcaniques basiques métamor(...)
Volcanites basiques, granitoïdes, filons, Chronologie, Tougoury, Burkina Faso, Afrique de l'Ouest
ARTICLE
Hydrogeochemical Characterization of Dug Well Water and Its Suitability for Domestic Water Supply in the Village of Passakongo, Dédougou municipality, Burkina Faso.
Aboubakar Sako, Sâga Sawadogo, Moïse Yoni, Mamadou Nimi, Ousseni Zongo, Ousmane Bamba
Hydrogeochemical characterization and suitability study of dug well water for domestic purpose were carried out
in a semi-arid rural village in Burkina Faso. Thirty water samples were collected from 15 wells in dry and wet
seasons, 2017. Electrical conductivity (EC) and total dissolved solids as well as major ions of all samples were
within(...)
domestic water supply, semi-arid, rural Burkina Faso, dug well, hydrochemistry
ARTICLE
GHASP: an Hα kinematics survey of spiral galaxies - XII. Distribution of luminous and dark matter in spiral and irregular nearby galaxies using Rc-band photometry
M. Korsaga, P. Amram, C. Carignan and B. Epinat
Mass models of 100 nearby spiral and irregular galaxies, covering morphological types from Sa to Irr, are computed using H α rotation curves and Rc-band surface brightness profiles. The kinematics was obtained using a scanning Fabry-Perot interferometer. One of the aims is to compare our results with those from Korsaga et al., which used mid-i(...)
galaxies: dwarf; galaxies: haloes; galaxies: kinematics and dynamics; galaxies: spiral; dark matter; Astrophysics - Astrophysics of Galaxies
ARTICLE
Hydrogeochemical and multi-tracer investigations of arsenic-affected aquifers in semi-arid West Africa
Anja Bretzler, Lucien Stolze, Julien Nikiema, Franck Lalanne, Elaheh Ghadiri, Matthias S. Brennwald, Massimo Rolle, Mario Schirmer
The semi-arid Sahel regions of West Africa rely heavily on groundwater from shallow to moderately deep (10 mg/L) stemming from the oxidation of sulphide minerals (pyrite, arsenopyrite) in mineralised zones. These aquifers are still little investigated, especially concerning groundwater residence times and the influence of the annual monsoon s(...)
Arsenic, Groundwater chemistry, West Africa, Fractured aquifers, Residence time, Noble gases
ARTICLE
Intrusion-related gold mineralization: Inata gold deposit, Bélahourou district, Northern Burkina Faso (West-Africa)
Herman Ilboudo, Sâga Sawadogo, Abraham Seydoux Traoré, Martial Sama, Urbain Wenmenga, Martin Lompo
The Inata cluster of gold deposits is one of ten gold deposits currently in exploitation in Burkina Faso. The aim of
this work was to assess the influence and contribution of the magmatic events in the metallogenic system. Our
approach is based on detailed field observation and petrography of different lithologies encountered in the main
pi(...)
West african craton, Burkina Faso, Inata, Birimian, Gold, Intrusion
ARTICLE
GHASP: an Hα kinematical survey of spiral galaxies - XI. Distribution of luminous and dark matter in spiral and irregular nearby galaxies using WISE photometry
M. Korsaga, C. Carignan, P. Amram, B. Epinat and T.H. Jarrett
We present the mass distribution of a sample of 121 nearby galaxies with high-quality optical velocity fields and available infrared Wide-field Infrared Survey Explorer(WISE) 3.4 μm data. Contrary to previous studies, this sample covers all morphological types and is not biased towards late-type galaxies. These galaxies are part of the Fabry-P(...)
galaxies: haloes; galaxies: irregular; galaxies: kinematics and dynamics; galaxies: spiral; dark matter; Astrophysics - Astrophysics of Galaxies