@article{PAR00011493,
  title = {{T}he geomagnetic dipole moment variation between 250 and 800 ka {BP} reconstructed from the authigenic {B}e-10/{B}e-9 signature in {W}est {E}quatorial {P}acific sediments},
  author = {{M}enabreaz, {L}. and {T}houveny, {N}icolas and {B}ourles, {D}. {L}. and {V}idal, {L}.},
  editor = {},
  language = {{ENG}},
  abstract = {{T}he authigenic {B}e-10/{B}e-9 ratio, proxy of the cosmogenic radionuclide {B}e-10 production rate in the atmosphere, was measured in sediments deposited in the {W}est {E}quatorial {P}acific ({G}ulf of {P}apua; 10 degrees 25 {S}; 146 degrees 15 {E}), in order to reconstruct the geomagnetic dipole moment variations in the 250-800 ka time interval, independently from paleomagnetic methods. {T}he pelagic clayey-carbonate muds continuously deposited between marine isotope stages 8 and 20 were subsampled every 10 cm. {T}he {B}e-10 production rate record reconstructed for the 250-800 ka interval is described and compared over the same time interval with global paleomagnetic stacks ({SINT}-2000 and {PISO}-1500). {T}he highlighted cosmogenic {B}e-10 overproductions appear to be triggered by the series of {G}eomagnetic {D}ipole {L}ows ({GDL}) that have occurred since the {B}runhes-{M}atuyama reversal. {C}alibration using absolute values of the geomagnetic dipole moment drawn from a paleomagnetic database produces a new record of the dipole moment variations over the 250-800 ka time interval. {T}he timing and amplitude of the {GDL} succession revealed by such records will contribute to improving knowledge of the geodynamo rhythms and rate of changes at millennial to million year scales.},
  keywords = {marine sediment geochemistry ; {B}e-10 cosmogenic production ; geomagnetic ; dipole moment ; {B}runhes paleomagnetic excursions ; {B}runhes/{M}atuyama ; transition ; {PACIFIQUE} ; {ZONE} {EQUATORIALE}},
  booktitle = {},
  journal = {{E}arth and {P}lanetary {S}cience {L}etters},
  volume = {385},
  numero = {},
  pages = {190--205},
  ISSN = {0012-821{X}},
  year = {2014},
  DOI = {10.1016/j.epsl.2013.10.037},
  URL = {https://www.documentation.ird.fr/hor/{PAR}00011493},
}