@article{fdi:010068862,
  title = {{A}uthigenic {B}e-10/{B}e-9 ratio signatures of the cosmogenic nuclide production linked to geomagnetic dipole moment variation since the {B}runhes/{M}atuyama boundary},
  author = {{S}imon, {Q}. and {T}houveny, {N}icolas and {B}ourles, {D}. {L}. and {V}alet, {J}. {P}. and {B}assinot, {F}. and {M}enabreaz, {L}. and {G}uillou, {V}. and {C}hoy, {S}. and {B}eaufort, {L}.},
  editor = {},
  language = {{ENG}},
  abstract = {{G}eomagnetic dipole moment variations associated with polarity reversals and excursions are expressed by large changes of the cosmogenic nuclide beryllium-10 ({B}e-10) production rates. {A}uthigenic {B}e-10/{B}e-9 ratios (proxy of atmospheric {B}e-10 production) from oceanic cores therefore complete the classical information derived from relative paleointensity ({RPI}) records. {T}his study presents new authigenic {B}e-10/{B}e-9 ratio results obtained from cores {MD}05-2920 and {MD}05-2930 collected in the west equatorial {P}acific {O}cean. {B}e ratios from cores {MD}05-2920, {MD}05-2930 and {MD}90-0961 have been stacked and averaged. {V}ariations of the authigenic {B}e-10/{B}e-9 ratio are analyzed and compared with the geomagnetic dipole low series reported from global {RPI} stacks. {T}he largest {B}e-10 overproduction episodes are related to dipole field collapses (below a threshold of 2 x 1022 {A}m-2) associated with the {B}runhes/{M}atuyama reversal, the {L}aschamp (41 ka) excursion, and the {I}celand {B}asin event (190 ka). {O}ther significant {B}e-10 production peaks are correlated to geomagnetic excursions reported in literature. {T}he record was then calibrated by using absolute dipole moment values drawn from the {G}eomagia and {P}int paleointensity value databases. {T}he {B}e-10-derived geomagnetic dipole moment record, independent from sedimentary paleomagnetic data, covers the {B}runhes-{M}atuyama transition and the whole {B}runhes {C}hron. {I}t provides new and complementary data on the amplitude and timing of millennial-scale geomagnetic dipole moment variations and particularly on dipole moment collapses triggering polarity instabilities.},
  keywords = {{PACIFIQUE} ; {ZONE} {EQUATORIALE}},
  booktitle = {},
  journal = {{J}ournal of {G}eophysical {R}esearch : {S}olid {E}arth},
  volume = {121},
  numero = {11},
  pages = {7716--7741},
  ISSN = {2169-9313},
  year = {2016},
  DOI = {10.1002/2016jb013335},
  URL = {https://www.documentation.ird.fr/hor/fdi:010068862},
}