Magnetism on the angrite parent body and the early differentiation of planetesimals - PubMed

Affiliations

• PMID: 18974346
• DOI: 10.1126/science.1162459

Magnetism on the angrite parent body and the early differentiation of planetesimals

Benjamin P Weiss et al. Science. 2008.

Abstract

Angrites are among the oldest known pristine basaltic meteorites and record the earliest stages of planet formation and differentiation. Our paleomagnetic analysis of three angrites found that they record a past magnetic field of approximately 10 microteslas on the angrite parent body extending from 4564 to at least 4558 million years ago. Because the angrite paleomagnetic record extends beyond the expected lifetime of the early circumstellar disk, these paleofields were probably generated internally on the angrite parent body, possibly by an early dynamo in a rapidly formed metallic core.

Similar articles

• Lifetime of the solar nebula constrained by meteorite paleomagnetism.

  Wang H, Weiss BP, Bai XN, Downey BG, Wang J, Wang J, Suavet C, Fu RR, Zucolotto ME. Wang H, et al. Science. 2017 Feb 10;355(6325):623-627. doi: 10.1126/science.aaf5043. Science. 2017. PMID: 28183977

• Early planetesimal melting from an age of 4.5662 Gyr for differentiated meteorites.

  Baker J, Bizzarro M, Wittig N, Connelly J, Haack H. Baker J, et al. Nature. 2005 Aug 25;436(7054):1127-31. doi: 10.1038/nature03882. Nature. 2005. PMID: 16121173

• Early lunar magnetism.

  Garrick-Bethell I, Weiss BP, Shuster DL, Buz J. Garrick-Bethell I, et al. Science. 2009 Jan 16;323(5912):356-9. doi: 10.1126/science.1166804. Science. 2009. PMID: 19150839

• The Psyche Magnetometry Investigation.

  Weiss BP, Merayo JMG, Ream JB, Oran R, Brauer P, Cochrane CJ, Cloutier K, Elkins-Tanton LT, Jørgensen JL, Maurel C, Park RS, Polanskey CA, de Soria Santacruz-Pich M, Raymond CA, Russell CT, Wenkert D, Wieczorek MA, Zuber MT. Weiss BP, et al. Space Sci Rev. 2023;219(3):22. doi: 10.1007/s11214-023-00965-z. Epub 2023 Mar 28. Space Sci Rev. 2023. PMID: 37007705 Free PMC article. Review.

• Conserved noncoding elements and the evolution of animal body plans.

  Vavouri T, Lehner B. Vavouri T, et al. Bioessays. 2009 Jul;31(7):727-35. doi: 10.1002/bies.200900014. Bioessays. 2009. PMID: 19492354 Review.

Cited by

• The top-down solidification of iron asteroids driving dynamo evolution.

  Neufeld JA, Bryson JFJ, Nimmo F. Neufeld JA, et al. J Geophys Res Planets. 2019 May;124(5):1331-1356. doi: 10.1029/2018je005900. J Geophys Res Planets. 2019. PMID: 32071828 Free PMC article.

• Trace element geochemistry of coarse-grained angrites from Northwest Africa: Implications for their petrogenesis on the angrite parent body.

  Sanborn ME, Wadhwa M. Sanborn ME, et al. Meteorit Planet Sci. 2021 Mar;56(3):482-499. doi: 10.1111/maps.13631. Epub 2021 Mar 3. Meteorit Planet Sci. 2021. PMID: 34316246 Free PMC article.

• Long-lived magnetism from solidification-driven convection on the pallasite parent body.

  Bryson JF, Nichols CI, Herrero-Albillos J, Kronast F, Kasama T, Alimadadi H, van der Laan G, Nimmo F, Harrison RJ. Bryson JF, et al. Nature. 2015 Jan 22;517(7535):472-5. doi: 10.1038/nature14114. Nature. 2015. PMID: 25612050

• A long-lived lunar dynamo driven by continuous mechanical stirring.

  Dwyer CA, Stevenson DJ, Nimmo F. Dwyer CA, et al. Nature. 2011 Nov 9;479(7372):212-4. doi: 10.1038/nature10564. Nature. 2011. PMID: 22071766

• A 4,565-My-old record of the solar nebula field.

  Maurel C, Gattacceca J. Maurel C, et al. Proc Natl Acad Sci U S A. 2024 Mar 19;121(12):e2312802121. doi: 10.1073/pnas.2312802121. Epub 2024 Mar 4. Proc Natl Acad Sci U S A. 2024. PMID: 38437531 Free PMC article.

Publication types

LinkOut - more resources

• Full Text Sources

  • Atypon
  • Ovid Technologies, Inc.

• Miscellaneous

  • NCI CPTAC Assay Portal