This data set contains the age model and sediment elemental compositions of core ANT34/A2-10 (125°35'31”W, 67°02'10”S, 4217m water depth) and covering the last 770 kyr, retrieved from the Amundsen Sea in the Southern Ocean. The elemental compositions were measured by X-ray fluorescence (XRF) core-scanning and Inductively Coupled Plasma Mass Spectrometry (ICP-MS) on sediment samples. The original XRF core-scanned results of calcium and titanium are corrected for water content (indicated by the scanning intensity of chlorine) following the method described in the original publication