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Sanna

Sanna Alwmark

Biträdande universitetslektor

Sanna

Combined Neutron and X-Ray Tomography—A Versatile and Non-Destructive Tool in Planetary Geosciences

Författare

  • J. Martell
  • C. Alwmark
  • R. Woracek
  • S. Alwmark
  • S. Hall
  • L. Ferrière
  • L. Daly
  • C. Bender Koch
  • J. Hektor
  • S. Johansson
  • L. Helfen
  • A. Tengattini
  • D. Mannes
Visa allt

Summary, in English

With several upcoming sample return missions, such as the Mars Sample Return Campaign, non-destructive methods will be key to maximizing their scientific output. In this study, we demonstrate that the combination of neutron and X-ray tomography provides an important tool for the characterization of such valuable samples. These methods allow quantitative analyses of internal sample features and also provide a guide for further destructive analyses with little to no sample treatment, which maintains sample integrity, including minimizing the risk of potential contamination. Here, we present and review the results from four case studies of terrestrial impactites and meteorites along with their analytical setup. Using combined X-ray and neutron tomography, a Ni-Fe silicide spherule, that is, projectile material, was located within a Libyan Desert Glass sample and the distribution of hydrous phases was pinpointed in selected impactite samples from the Chicxulub IODP-ICDP Expedition 364 drill core and the Luizi impact structure, as well as in the Miller Range 03346 Martian meteorite.

Avdelning/ar

  • LINXS - Institute of advanced Neutron and X-ray Science
  • SEM-labbet
  • Berggrundsgeologi
  • LTH profilområde: Nanovetenskap och halvledarteknologi
  • Hållfasthetslära
  • LU profilområde: Naturlig och artificiell kognition
  • Teknisk geologi

Publiceringsår

2024-02

Språk

Engelska

Publikation/Tidskrift/Serie

Journal of Geophysical Research: Planets

Volym

129

Issue

2

Dokumenttyp

Artikel i tidskrift

Förlag

Wiley-Blackwell

Ämne

  • Geology

Nyckelord

  • impactite
  • neutron tomography
  • planetary geology
  • projectile material
  • sample return
  • x-ray tomography

Aktiv

Published

ISBN/ISSN/Övrigt

  • ISSN: 2169-9097