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...
Published in: | The Holocene |
---|---|
Main Authors: | , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
SAGE Publications
1996
|
Subjects: | |
Online Access: | http://dx.doi.org/10.1177/095968369600600411 https://journals.sagepub.com/doi/pdf/10.1177/095968369600600411 |
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. |
---|