Donata Helling and Gerhard Kuhn. Dept. of Geosciences, Alfred Wegener Institute for Polar and Marine Research, Helmholtz Association, Am Alten Hafen 26, Bremerhaven, 27568, Germany
Antarctica and especially its ice sheets play a major role in the global ocean current system and climate. The ANDRILL (Antarctic Geological Drilling) MIS deep drilling project (McMurdo Sound, NE Ross Ice Shelf, drilled core AND-1B during austral summer 2006/2007) is located in a flexural moat basin filled with sediments of different origins. For the first time, sediments beneath an ice shelf were drilled, which provides a unique opportunity to investigate the Ross Ice Shelf variability.
During the drilling phase, major and minor elements were measured using a non-destructive X-Ray Fluorescence Core Scanner. The core covers a time period much longer than any Antarctic ice core record. The high-resolution data set of XRF-core scans allows estimating climate changes on small time scales. This report covers the early stage of the project, focus mainly on data preparation and correction and gives a first rough interpretation of the measured data.
[Manuscript]