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Impact into a Graphite-Bearing Regolith: A Dynamic Shock Recovery Study

Stojic, A. and Moreau, J. and Kohout, Tomas and Morlok, A. and Joeleht, A. and Penttilä, A. and Hiesinger, H. and Bauch, K.E. and Pasckert, J. H. and Reitze, M.P. and Schmedemann, N. and Weber, I. and Helbert, Jörn (2023) Impact into a Graphite-Bearing Regolith: A Dynamic Shock Recovery Study. 54th Lunar and Planetary Science Conference 2023, 13.-17. Mar.2023, The Woodlands, USA.

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Official URL: https://www.hou.usra.edu/meetings/lpsc2023/pdf/1917.pdf


Mercury’s surface is exposed to a multitude of surface altering effects that have a significant influence on its optical properties. Impact events – small or large – are one of the major surface-altering agents. Inferred from hypothetical modal abundances [1] graphite can comprise up to 4 wt% on Mercury’s surface. Graphite as a possible stable phase on Mercury can explain the relatively low albedo of the planet [2]. Our experimental setup probes the hypothetical impact into a graphite- and olivine-bearing, pyroxene-rich (Px (En87) = 68 wt%; Ol (Fo91) = 29 wt%, C = 3 wt%) surface. The effect of post-shock heating and pressure on a powder comprised of silicates with grain sizes ≤125 μm and hexagonal graphite was simulated in a classic shock recovery experiment [3]. The experiments were performed in the framework of the BepiColombo mission to Mercury. The onboard Mercury Radiometer and Thermal Infrared Spectrometer (MERTIS) will send thermal emissivity data once it reaches the Hermean orbit in 2025. A spectral database for mid infrared data is currently set up at the Institut für Planetologie in Münster. Published mid infrared data will soon be available and sample related spectral information of interest can be traced via assigned IDs (e.g., IDxxx).

Item URL in elib:https://elib.dlr.de/196939/
Document Type:Conference or Workshop Item (Poster)
Title:Impact into a Graphite-Bearing Regolith: A Dynamic Shock Recovery Study
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Stojic, A.Westfälische Wilhelms-Universität MünsterUNSPECIFIEDUNSPECIFIED
Moreau, J.Department of Geosciences and Geography, University of Helsinki, FinlandUNSPECIFIEDUNSPECIFIED
Kohout, TomasDepartment of Geosciences and Geography, University of Helsinki, P.O. Box 64, FI-00014 Helsinki, Finland; Ursa Finnish Fireball Network, Kopernikuksentie 1, FI-00130 Helsinki, FinlandUNSPECIFIEDUNSPECIFIED
Morlok, A.Westfälische Wilhelms-Universität MünsterUNSPECIFIEDUNSPECIFIED
Joeleht, A.Departmentof Geology, University of Tartu, EstoniaUNSPECIFIEDUNSPECIFIED
Penttilä, A.Department of Physics, University of Helsinki, FinlandUNSPECIFIEDUNSPECIFIED
Hiesinger, H.Institute for Planetology, University of Münster, GermanyUNSPECIFIEDUNSPECIFIED
Bauch, K.E.Institut für Planetologie, Westfälische Wilhelms-Universität, Wilhelm-Klemm-Str. 10, 48149 Münster, GermanyUNSPECIFIEDUNSPECIFIED
Pasckert, J. H.Institut für Planetologie, Westfälische Wilhelms-Universität Münster, Wilhelm-Klemm-Strasse 10, 48149 Münster, GermanyUNSPECIFIEDUNSPECIFIED
Reitze, M.P.Institut für Planetologie, Westfälische Wilhelms‐Universität Münster, Münster, GermanyUNSPECIFIEDUNSPECIFIED
Schmedemann, N.Institute für Planetologie, Westfälische Wilhelms-Universität Münster, Münster, GermanyUNSPECIFIEDUNSPECIFIED
Weber, I.Institute for Planetology, University of Münster, GermanyUNSPECIFIEDUNSPECIFIED
Helbert, JörnUNSPECIFIEDhttps://orcid.org/0000-0001-5346-9505UNSPECIFIED
Refereed publication:No
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Page Range:p. 1917
Series Name:LPI Contribution
Keywords:Schock. MERTIS, Merkur
Event Title:54th Lunar and Planetary Science Conference 2023
Event Location:The Woodlands, USA
Event Type:international Conference
Event Dates:13.-17. Mar.2023
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space Exploration
DLR - Research area:Raumfahrt
DLR - Program:R EW - Space Exploration
DLR - Research theme (Project):R - Project BepiColombo - MERTIS and BELA
Location: Berlin-Adlershof
Institutes and Institutions:Institute of Planetary Research > Planetary Laboratories
Deposited By: Helbert, Dr.rer.nat. Jörn
Deposited On:01 Sep 2023 10:24
Last Modified:01 Sep 2023 10:24

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