Open AccessMagnetic field and susceptibility logging in GPF3 borehole at Couy (France) between 0 and 3500 m
Author(s) -
Tabbagh A.,
Pozzi J. P.,
Alvarez F.,
Pocachard J.,
Martin J. P.,
Pagès G.,
Gable R.,
Lebert F.,
Hutin R.
Publication year - 1990
Publication title -
geophysical journal international
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.302
H-Index - 168
eISSN - 1365-246X
pISSN - 0956-540X
DOI - 10.1111/j.1365-246x.1990.tb00759.x
Subject(s) - geology , borehole , magnetic susceptibility , magnetic anomaly , basement , remanence , sedimentary rock , geophysics , drilling , logging , magnetic field , magnetization , seismology , geochemistry , paleontology , physics , materials science , archaeology , condensed matter physics , quantum mechanics , metallurgy , ecology , biology , history
SUMMARY The aim of the Couy experiment in the ‘Géologie Profonde de la France’ programme was to reach the source body of the magnetic anomaly of the ‘Bassin de Paris'. The drilling stopped at 3500 m. Magnetic field logging and susceptibility logging were undertaken to obtain as complete a description as possible of the magnetic parameters of rocks crossed by the borehole. Remanent magnetization and susceptibility measurements on the core were also carried out. The entire set of results is presented in this paper for both sedimentary layers and the basement. The values obtained for magnetic field variations and for susceptibility lead to the conclusion that the magnetic source body of the AMBP was not reached.