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The authigenic 10 Be/ 9 Be ratio, proxy of the cosmogenic radionuclide 10 Be production rate in the atmosphere, was measured in sediments deposited in the West Equatorial Pacific (Gulf of Papua; 10°25 S; 146°15 E), in order to reconstruct the geomagnetic dipole moment variations in the 250–800 ka time interval, independently from paleomagnetic methods. The pelagic clayey-carbonate...
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