Magnetic measurements of Greenland and Himalayan ice-core samples
This paper summarizes Isothermal Remanence (IRM300mT) measurements from Holocene ice-core samples from two contrasting glaciological regimes: (i) the Greenland ice sheet and (ii) a Himalayan glacier. Cores had been previously characterized in terms of chronologies, geochemistry and, for the Himalayan core, microparticle concentrations. Six samples from the Greenland 20-D ice core from the time period AD 1876-1983 did not yield magnetic measurements above instrumental noise-level. Significant Isothermal Remanence measurements (IRM300mT) were obtained from some levels in the Himalayan ice core. Scanning electron microscopy and EDAX analyses indicate weathered crustal material. The techniques used require ice-core samples with relatively high dust loadings and/or larger volume ice samples.
Earth Systems Research Center
Digital Object Identifier (DOI)
Sahota, J. T. S., Mayewski, P. A., Oldfield, F., & Twickler, M. S. (1996). Magnetic measurements of Greenland and Himalayan ice-core samples. The Holocene, 6(4), 477-480. doi:10.1177/095968369600600411