Title	Ice magnetization in the EPICA-Dome C ice core; implication for dust sources during glacial and interglacial periods
Author	Lanci, L.; Delmonte, B.; Maggi, V.; Petit, J.R.; Kent, D.V.
Author Affil	Lanci, L., Universita di Urbino, Istituto di Scienze della Terra, Urbino, Italy. Other: Universita di Milano- Bicocca, Italy; Laboratoire de Glaciologie et Geophysique de l'Environnement, France; Rutgers University
Source	Journal of Geophysical Research, 113(D14), Citation D14207. Publisher: American Geophysical Union, Washington, DC, United States. ISSN: 0148- 0227
Publication Date	2008
Notes	In English. 15 refs. GeoRef Acc. No: 299592. CRREL Acc. No: 64004206
Index Terms	chemical composition; dust; glacial deposits; glacial geology; ice; magnetic properties; Quaternary deposits; remanent magnetism; sediments; Antarctica--Dome C; Antarctica; Cenozoic; clastic sediments; concentration; deposition; Dome C; EPICA; glacial environment; ice cores; interglacial environment; iron oxides; isothermal remanent magnetization; magnetization; oxides; paleomagnetism; provenance; Quaternary; remanent magnetization; transport; Wilkes Land; wind transport
Abstract	Isothermal remanent magnetization and insoluble dust content of ice samples from EPICA-Dome C ice core were measured to characterize the magnetic properties of atmospheric dust. Despite the larger concentration of dust aerosol during glacial stages, the magnetization of the dust fraction was found to be higher during interglacials and exhibits a larger variability. Changes in magnetic mineralogy of aerosol dust in ice from different climatic stages were also characterized using coercivity of remanence. Variations of magnetic properties of dust from glacial to interglacial stages indicate changes in dust provenance, in agreement with previous results based on geochemical analysis. However, the extremely large magnetizations of some interglacial samples also sugges
URL	http://hdl.handle.net/10.1029/2007JD009678
Publication Type	journal article
Record ID	88239