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The scale of a martian hydrothermal system explored using combined neutron and x-ray tomography

Martell, Josefin (författare)
Lund University,Lunds universitet,Berggrundsgeologi,Geologiska institutionen,Naturvetenskapliga fakulteten,Lithosphere and Biosphere Science,Department of Geology,Faculty of Science,Department of Geology, Lund University, Sölvegatan 12, 223 62 Lund, Sweden
Alwmark, Carl (författare)
Lund University,Lunds universitet,Berggrundsgeologi,Geologiska institutionen,Naturvetenskapliga fakulteten,Lithosphere and Biosphere Science,Department of Geology,Faculty of Science,Department of Geology, Lund University, Sölvegatan 12, 223 62 Lund, Sweden
Daly, Luke (författare)
School of Geographical and Earth Sciences, University of Glasgow, Glasgow G12 8QQ, UK; Australian Centre for Microscopy and Microanalysis, University of Sydney, Sydney 2006, NSW, Australia; Department of Materials, University of Oxford, Oxford OX1 3PH, UK,University of Glasgow,University of Oxford
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Hall, Stephen (författare)
Lund University,Lunds universitet,Hållfasthetslära,Institutionen för byggvetenskaper,Institutioner vid LTH,Lunds Tekniska Högskola,LINXS - Institute of advanced Neutron and X-ray Science,Kemiska institutionen,Solid Mechanics,Department of Construction Sciences,Departments at LTH,Faculty of Engineering, LTH,Department of Chemistry,Faculty of Engineering, LTH,Division of Solid Mechanics, Lund University, Lund, Sweden; Lund Institute of Advanced Neutron and X-ray Science (LINXS), Lund, Sweden
Alwmark, Sanna (författare)
Lund University,Lunds universitet,Berggrundsgeologi,Geologiska institutionen,Naturvetenskapliga fakulteten,Lithosphere and Biosphere Science,Department of Geology,Faculty of Science,Department of Geology, Lund University, Sölvegatan 12, 223 62 Lund, Sweden; Niels Bohr Institute, University of Copenhagen, Copenhagen, Denmark; Natural History Museum Denmark, University of Copenhagen, Copenhagen, Denmark,Niels Bohr Institute
Woracek, Robin (författare)
European Spallation Source ESS ERIC,European Spallation Source, Lund, Sweden
Hektor, Johan (författare)
Malmö universitet,Malmö University,Lund University,Lunds universitet,LUNARC - Centrum för Tekniska och Vetenskapliga Beräkningar vid Lunds Universitet,Annan verksamhet, LTH,Lunds Tekniska Högskola,LUNARC, Centre for Scientific and Technical Computing at Lund University,Other operations, LTH,Faculty of Engineering, LTH,Institutionen för materialvetenskap och tillämpad matematik (MTM),LUNARC, Centre for Scientific and Technical Computing, Lund University, Lund, Sweden
Helfen, Lukas (författare)
University Grenoble Alpes,Institut Laue-Langevin, Grenoble, France
Tengattini, Alessandro (författare)
Institut Laue-Langevin, Grenoble, France; Universite Grenoble Alpes, CNRS, Grenoble INP, 3SR, Grenoble, France
Lee, Martin (författare)
School of Geographical and Earth Sciences, University of Glasgow, Glasgow G12 8QQ, UK
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 (creator_code:org_t)
American Association for the Advancement of Science (AAAS), 2022
2022
Engelska.
Ingår i: Science Advances. - : American Association for the Advancement of Science (AAAS). - 2375-2548. ; 8:19
  • Tidskriftsartikel (refereegranskat)
Abstract Ämnesord
Stäng  
  • Nakhlite meteorites are igneous rocks from Mars that were aqueously altered ~630 million years ago. Hydrothermal systems on Earth are known to provide microhabitats; knowledge of the extent and duration of these systems is crucial to establish whether they could sustain life elsewhere in the Solar System. Here, we explore the three-dimensional distribution of hydrous phases within the Miller Range 03346 nakhlite meteorite using nondestructive neutron and x-ray tomography to determine whether alteration is interconnected and pervasive. The results reveal discrete clusters of hydrous phases within and surrounding olivine grains, with limited interconnectivity between clusters. This implies that the fluid was localized and originated from the melting of local subsurface ice following an impact event. Consequently, the duration of the hydrous alteration was likely short, meaning that the martian crust sampled by the nakhlites could not have provided habitable environments that could harbor any life on Mars during the Amazonian.

Ämnesord

NATURVETENSKAP  -- Geovetenskap och miljövetenskap -- Geologi (hsv//swe)
NATURAL SCIENCES  -- Earth and Related Environmental Sciences -- Geology (hsv//eng)
NATURVETENSKAP  -- Geovetenskap och miljövetenskap -- Multidisciplinär geovetenskap (hsv//swe)
NATURAL SCIENCES  -- Earth and Related Environmental Sciences -- Geosciences, Multidisciplinary (hsv//eng)

Nyckelord

Neutron tomography
Martian meteorites
Impact cratering
planetary science
Planetary geology
Meteorite
x-ray imaging
image analysis
3D Visualisation

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