Hostname: page-component-77c89778f8-n9wrp Total loading time: 0 Render date: 2024-07-16T13:45:37.696Z Has data issue: false hasContentIssue false

14C Dating and Magnetostratigraphy

Published online by Cambridge University Press:  18 July 2016

Roy Thompson*
Affiliation:
Department of Geophysics, University of Edinburgh, James Clerk Maxwell Building, Mayfield Road, Edinburgh EH9 3JZ, Scotland
Rights & Permissions [Opens in a new window]

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

The history of the earth's magnetic field is preserved in the fossil magnetism of archaeologic specimens, natural rocks and sediments. Samples such as lava flows and baked sherds that acquired a thermoremanent magnetization on cooling can be used to estimate ancient geomagnetic field intensities and directions. Paleofield directions can also be obtained from fine-grained sediments that acquired detrital magnetic remanence when deposited. Study of the earth's magnetic field over the last few tens of thousands of years yields information on geomagnetic dynamo theories, causes of fluctuations in cosmic-ray activity, and the formulation of a new regional chronologic tool.

Type
I. Natural 14C Variations
Copyright
Copyright © The American Journal of Science 

References

Banerjee, SK, Lund, SP and Levi, S, 1979, Geomagnetic record in Minnesota lake sediments - Absence of the Gothenburg and Erieau excursions: Geology, v 7, p 588591.Google Scholar
Barton, CE and McElhinny, MW, 1981, A 9000 year geomagnetic secular variation record from three Australian Maars: Geophys Jour Royal Astron Soc, v 67, p 465485.Google Scholar
Bucha, V, 1970, Influence of the Earth's magnetic field on radiocarbon dating, in : New York, John Wiley & Sons, p 501511.Google Scholar
Clark, RM, 1975, A calibration curve for radiocarbon dates: Antiquity, v 49, p 251266.Google Scholar
Horie, S, Yaskawa, K, Yamamoto, T and Hyodo, M, in press, Paleolimnology of Lake Kizaki: Archives Hydrobiol, in press.Google Scholar
Huttonen, P and Stober, J, 1980, Dating of palaeomagnetic records from Finnish lake sediment cores using pollen analysis: Boreas, v 9, p 193202.Google Scholar
Mackereth, FJH, 1958, A portable core sampler for lake deposits: Limnol Oceanogr, v 3, p 181191.CrossRefGoogle Scholar
Mackereth, FJH, 1971, On the variation in direction of the horizontal component of remanent magnetization in lake sediments: Earth Planetary Sci Letters, v 12, p 332338.CrossRefGoogle Scholar
Malin, SRC and Hodder, BM, 1982, Was the 1970 geomagnetic jerk of internal or external origin?: Nature, v 296, p 726728.Google Scholar
McElhinny, MW and Senanayake, WE, in press, Variations in the geomagnetic dipole 1: The past 50,000 years: Jour Geomagnetism Geoelectricity.Google Scholar
McWilliams, MO, Holcomb, RT and Champion, DE, 1982, Geomagnetic secular variation from 14C dated lava flows on Hawaii: Royal Soc [London] Philos Trans, v A306, p 211222.Google Scholar
Olsson, IU, 1979, Radiometric dating in palaeohydrobiological changes in the temperate zone in the last 15000 years, in Berglund, BE, ed, IGCP 158, Lund.Google Scholar
Smith, PJ, 1966, Ancient geomagnetic field intensities, I Historic and archaeological data: Sets H1-H9: Geophys Jour Royal Astron Soc, v 13, p 417419.Google Scholar
Thompson, R and Barraclough, DR, in press, Geomagnetic secular variations based on spherical harmonic and cross validation analyses of historical and archaeomagnetic data: Jour Geomagnetism Geoelectricity, in press.Google Scholar
Thompson, R and Turner, GM, 1979, British geomagnetic master curve 10,000 - 0 yr BP for dating European sediments: Geophys Research Letters, v 6, p 249252.CrossRefGoogle Scholar
Tolonen, K, Siiriainen, A and Thompson, R, 1975, Prehistoric field erosion sediment in Lake Lojarvi, S Finland and its palaeomagnetic dating: Ann Bot Fenn, v 12, p 161164.Google Scholar
Walton, D, 1979, Geomagnetic intensity in Athens between 2000 BC and 400: Nature, v 272, p 643644.CrossRefGoogle Scholar