The interval XX at 715–730 ka is hardly significant, documenting a 0.9‐fold 10 Be/ 9 Be ratio increases centered at 715 and 729 ka in cores MD05‐2930 and MD90‐0961, respectively.
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Authigenic <sup>10</sup>Be/<sup>9</sup>Be ratio signatures of the cosmogenic nuclide production linked to geomagnetic dipole moment variation since the Brunhes/Matuyama boundary.
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