Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Pb isotopes in the impact melt breccia 66095: Association with the Imbrium basin and the isotopic composition of lithologies at the Apollo 16 landing site
Swedish Museum of Natural History, Department of Geology. (Early Planetary Evolution)
Curtin University.
Swedish Museum of Natural History, Department of Geology. (Early Planetary Evolution)
Swedish Museum of Natural History, Department of Geology. (Early Planetary Evolution)
2017 (English)In: Chemical Geology, ISSN 0009-2541, E-ISSN 1872-6836, Vol. 466, 608-616 p.Article in journal (Refereed) Published
Abstract [en]

Recent in situ Secondary Ion Mass Spectrometry (SIMS) Pb isotope analyses of lunar basalts have provided precise crystallisation ages and initial Pb isotopic compositions for these samples. In this study, the same approach has been tested in the Apollo 16 impact melt breccia 66095, referred to as the “Rusty Rock” due to its enrichments in volatile elements, including Pb. Based on these analyses of the breccia, a Pb-Pb isochron age of 3909±17 Ma (at the 95% confidence level) and an initial Pb composition for 66095 have been determined. This age is interpreted as representing the time of breccia formation that, when combined with recent studies of lunar breccias, can be linked to the Imbrium basin forming impact. The directly measured initial Pb composition of the breccia from this work is similar a modelled compositions presented previously, and likely reflects an average value for the lithologies present at the Apollo 16 landing site at the time that the Imbrium ejecta was emplaced. The 66095 initial Pb isotopic composition is compared with the compositions in other lunar samples and the nature of the endmember lithologies in this mixture has been discussed within the framework of a multiple stage model of Pb isotope evolution on the Moon. This study demonstrates the effectiveness of this technique beyond its application in crystalline basalts, opening up the possibility of obtaining precise geochronological and Pb isotopic compositions from a broader sample set than was previously recognised.

Place, publisher, year, edition, pages
2017. Vol. 466, 608-616 p.
Keyword [en]
Lunar Pb, Pb isotopes, 66095, Imbrium, Initial Pb
National Category
Geochemistry
Research subject
The changing Earth
Identifiers
URN: urn:nbn:se:nrm:diva-2527DOI: 10.1016/j.chemgeo.2017.07.012OAI: oai:DiVA.org:nrm-2527DiVA: diva2:1161538
Projects
GEO KAW Early Planetary Evolution
Funder
Knut and Alice Wallenberg Foundation, 2012.0097Swedish Research Council, VR 621-2012-4370
Available from: 2017-11-30 Created: 2017-11-30 Last updated: 2017-11-30Bibliographically approved

Open Access in DiVA

fulltext(1374 kB)1 downloads
File information
File name FULLTEXT01.pdfFile size 1374 kBChecksum SHA-512
1b08e5fcc8beb7887f11fddb28ede8249f143247e9794102b5d9075fc94b25b1422cd0efc550d2307d377e9ae82ab2f4628a4f3878b290364ecab1c5404c40a7
Type fulltextMimetype application/pdf

Other links

Publisher's full text

Search in DiVA

By author/editor
Snape, JoshuaBellucci, JeremyWhitehouse, Martin
By organisation
Department of Geology
In the same journal
Chemical Geology
Geochemistry

Search outside of DiVA

GoogleGoogle Scholar
Total: 1 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

doi
urn-nbn

Altmetric score

doi
urn-nbn
Total: 111 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf