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Detailed Reference Information |
Lanoix, M., Strangway, D.W. and Pearce, G.W. (1978). The primordial magnetic field preserved in chondules of the Allende meteorite. Geophysical Research Letters 5: doi: 10.1029/GL005i001p00073. issn: 0094-8276. |
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We have studied individual chondrules from the Allende meteorite in an effort to determine the ancient magnetic field present when the chondrules formed. An unusual magnetic property of iron-rich metal at 130 ¿C has made it difficult to use low temperatures for paleointensity studies on samples of the whole Allende meteorite. Furthermore, an unusual property at about 300 ¿C (probably due to troilite which becomes antiferromagnetic about 320 ¿C) makes it difficult to determine paleintensities below the temperature. Nevertheless, between 350 ¿C and 550¿C, several chondrules from the Allende meteorite behave very well and give ancient field values as high as 16 oersteds. It is possible that this reflects the field present in the early solar nebula when the chondrules formed shortly before the Allende meteorite itself was formed. |
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Publisher
American Geophysical Union 2000 Florida Avenue N.W. Washington, D.C. 20009-1277 USA 1-202-462-6900 1-202-328-0566 service@agu.org |
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