Magnetic measurements of Greenland and Himalayan ice-core samples

This paper summarizes Isothermal Remanence (IRM 300mT ) 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 Himala...

Full description

Bibliographic Details
Published in:The Holocene
Main Authors: Sahota, J.T.S., Mayewski, P.A., Oldfield, F., Twickler, M.S.
Format: Article in Journal/Newspaper
Language:English
Published: SAGE Publications 1996
Subjects:
Paleontology
Earth-Surface Processes
Ecology
Archeology
Global and Planetary Change
Greenland
glacier
ice core
Ice Sheet
Online Access:http://dx.doi.org/10.1177/095968369600600411
http://journals.sagepub.com/doi/pdf/10.1177/095968369600600411
Description
Summary:This paper summarizes Isothermal Remanence (IRM 300mT ) 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 (IRM 300mT ) 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.

Similar Items