Zobrazeno 1 - 10
of 30
pro vyhledávání: '"Michel Ritz"'
Publikováno v:
Geoderma. 119:121-132
Electrical resistivity tomography (ERT) and ground-penetrating radar (GPR) surveys have been carried out in eastern Senegal for investigating two-stepped lateritic systems developed upon crystalline basement rocks. The geo-electrical pseudo-sections
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f21e817892b84357556583ed67c87017
https://doi.org/10.1016/j.geoderma.2003.06.001
https://doi.org/10.1016/j.geoderma.2003.06.001
Publikováno v:
Journal of Applied Geophysics
Journal of Applied Geophysics, Elsevier, 2001, 48 (3), pp.143-152. ⟨10.1016/S0926-9851(01)00078-7⟩
Journal of Applied Geophysics, Elsevier, 2001, 48 (3), pp.143-152. ⟨10.1016/S0926-9851(01)00078-7⟩
International audience; Controlled source audio-magnetotelluric (CSAMT) has been used to investigate the resistivity structure of the summit region of Karthala volcano. The major purpose of this CSAMT survey is to locate the active hydrothermal syste
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ec502bc6c4903155ebd2b62b61692869
https://doi.org/10.1016/s0926-9851(01)00078-7
https://doi.org/10.1016/s0926-9851(01)00078-7
Publikováno v:
Earth and Planetary Science Letters. 173:413-424
Two-dimensional electrical resistivity tomography has been employed to investigate the subsurface structure of a thick lateritic weathering mantle overlying a granitic bedrock in southeastern Senegal. The resistivities were measured along two kilomet
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::782db84ebf899c1a57325d2076b66c4e
https://doi.org/10.1016/s0012-821x(99)00245-9
https://doi.org/10.1016/s0012-821x(99)00245-9
Publikováno v:
Journal of Applied Geophysics. 41:335-344
The electrical properties of several tens of metres of lateritic weathering mantle were investigated by using electrical resistivity tomography "ERT" in two basement areas of eastern Senegal. The field survey was conducted along two profiles providin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d91b05f0b9793e3e2cf63d5aeee2f79c
https://doi.org/10.1016/s0926-9851(99)00008-7
https://doi.org/10.1016/s0926-9851(99)00008-7
Autor:
Marc Descloitres, Christian Camerlynck, Adama Mariko, Evgeni Pervago, Henri Robain, Michel Ritz, Yves Albouy
Publikováno v:
Geophysical Prospecting. 47:85-101
Near-surface inhomogeneities (NSIs) can lead to severe problems in the interpretation of apparent resistivity pseudosections because their effects significantly complicate the image aspect. In order to carry out a more efficient and reliable interpre
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c1101d3c5d050675504e3a4f8ed3bb32
https://doi.org/10.1046/j.1365-2478.1999.00122.x
https://doi.org/10.1046/j.1365-2478.1999.00122.x
Publikováno v:
Scopus-Elsevier
The magnetotelluric (MT) sounding method has been employed to study the deep aquifer of Senegal. Results from nine soundings measured along a 350 km long east-west profile demonstrate that the method provides valuable information about the geometry o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bf636f5df4c488f66f30102e4c398bfb
https://doi.org/10.1016/s0926-9851(97)00016-5
https://doi.org/10.1016/s0926-9851(97)00016-5
Publikováno v:
Ground Water. 35:585-592
A geophysical survey was carried out on the eastern flank of Piton de la Fournaise volcano in the Grand Brule area using combined audiomagnetotelluric (AMT) and time domain electromagnetic (TDEM) techniques. The aims of the present study were firstly
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fc3b2ac24d3186770eaf3f8f2bfeedb2
https://doi.org/10.1111/j.1745-6584.1997.tb00123.x
https://doi.org/10.1111/j.1745-6584.1997.tb00123.x
Publikováno v:
GEOPHYSICS. 62:758-762
Surface geophysics has been used for a number of years to solve a variety of major groundwater exploration problems in coastal and island regions. The electrical properties of near‐surface rocks are highly dependent on porosity, degree of saturatio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7cbe0500cad772cc83d221ff3a765b57
https://doi.org/10.1190/1.1444185
https://doi.org/10.1190/1.1444185
Publikováno v:
Journal of Applied Geophysics. 34:229-236
Three radial audiomagnetotelluric (AMT) sounding profiles were carried out across the narrow, 65-km diameter troctolitic Meugueur-Meugueur ring structure, central Air, Niger, to study its electrical configuration; one profile extended across the bedr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::75b364642739b4e604dc1f38738da887
https://doi.org/10.1016/0926-9851(95)00022-4
https://doi.org/10.1016/0926-9851(95)00022-4
Publikováno v:
ResearcherID
Resistivity investigations were carried out on an elementary watershed in SW Cameroon, firstly to assess the applicability of direct-current (DC) resistivity methods to solve various pedological problems in intertropical regions, and subsequently to
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::97389c25f232ca8c0351abfcde6ed72d
https://doi.org/10.1016/0926-9851(95)00023-2
https://doi.org/10.1016/0926-9851(95)00023-2