Geomagnetic Modulation of the 36 Cl Flux in the GRIP Ice Core, Greenland
- 27 February 1998
- journal article
- other
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 279 (5355), 1330-1332
- https://doi.org/10.1126/science.279.5355.1330
Abstract
Geomagnetic field strength is expected to affect the production rate of cosmogenic isotopes such as beryllium-10, carbon-14, or chlorine-36. Chlorine-36 data from the Greenland Ice Core Project (GRIP) ice core agree well with a production rate calculation based on a paleomagnetic reconstruction for the past 100,000 years over both long- and short-term variations. A chlorine-36 peak at 38,000 years ago previously found in the beryllium-10 record from the Vostok ice core can be explained by a period of low geomagnetic field intensity.Keywords
This publication has 23 references indexed in Scilit:
- Chlorine 36 fallout in the Summit Greenland Ice Core Project ice coreJournal of Geophysical Research: Oceans, 1997
- Solar modulation of cosmogenic nuclide production over the last millennium: comparison between 14C and 10Be recordsEarth and Planetary Science Letters, 1997
- Large amplitude solar modulation cycles of 10Be in Antarctica: Implications for atmospheric mixing processes and interpretation of the ice core recordGeophysical Research Letters, 1996
- Relative paleointensity of the geomagnetic field during the Brunhes ChronEarth and Planetary Science Letters, 1995
- The relationship between 10Be and geomagnetic field strength records in central North Atlantic sediments during the last 80 kaEarth and Planetary Science Letters, 1995
- Evidence for enhanced 10Be deposition in Mediterranean sediments 35 kyr BPGeophysical Research Letters, 1995
- Glacial-Interglacial Changes in Moisture Sources for Greenland: Influences on the Ice Core Record of ClimateScience, 1994
- An estimate of late Pleistocene geomagnetic intensity variation from Sulu Sea sedimentsEarth and Planetary Science Letters, 1993
- Relative geomagnetic intensity of the field during the last 140 kaEarth and Planetary Science Letters, 1992
- Palaeomagnetic field intensity variation recorded in a Brunhes epoch deep-sea sediment coreNature, 1977