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Relationships Among Regolith Thermal Conductivities and Seismic Velocities: Application to InSight Studies

Morgan, P. and Grott, Matthias and Schmelzbach, C. and Golombek, M. and Siegler, M.A. and Delage, P. and Müller, Nils and Smrekar, S. (2021) Relationships Among Regolith Thermal Conductivities and Seismic Velocities: Application to InSight Studies. 52nd Lunar and Planetary Science Conference 2021, March 15-19, 2021, Online.

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Official URL: https://www.hou.usra.edu/meetings/lpsc2021/pdf/1587.pdf

Abstract

Studies of the thermal and seismic properties of planetary regoliths are complex because of uncertainties and variability in composition, particle and pore geometrical shape, size distribution, and three-dimensional physical connectivity. Therefore, correlations among physical properties that relate to geophysical parameters that may be measured directly or indirectly are potentially useful for studying regoliths. Studies of relationships among seismic velocities and thermal conductivities of terrestrial rocks and minerals indicate general positive correlations, often with non-Gaussian scatters in the correlations that may result in part from heterogeneity in samples used for thermal conductivity determinations. Plots of laboratory data for seismic velocities versus thermal conductivity under ambient conditions for minerals and rocks are shown in Figs. 1 and 2, respectively. These data indicate linear relationships within the limitations of the data chosen. In this contribution we have compiled and collated thermal and seismic velocity data relevant to the Mars regolith and present a preliminary relationship for the regolith at the InSight landing site.

Item URL in elib:https://elib.dlr.de/141827/
Document Type:Conference or Workshop Item (Poster)
Title:Relationships Among Regolith Thermal Conductivities and Seismic Velocities: Application to InSight Studies
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Morgan, P.Colorado School of Mines, Golden, USAUNSPECIFIED
Grott, MatthiasMatthias.Grott (at) dlr.deUNSPECIFIED
Schmelzbach, C.ETH Swiss Federal Institute of Technology, Zurich, SwitzerlandUNSPECIFIED
Golombek, M.JPL, California Institute of Technology, Pasadena, CA, USAUNSPECIFIED
Siegler, M.A.Southern Methodist University, Dallas, Texas, USAUNSPECIFIED
Delage, P.Ecole des Ponts ParisTech, Navier-CERMES, Paris, FranceUNSPECIFIED
Müller, NilsNils.Mueller (at) dlr.deUNSPECIFIED
Smrekar, S.Jet Propulsion Laboratory, California Institute of Technology, Pasadena, USAUNSPECIFIED
Date:2021
Refereed publication:No
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Volume:2548
Page Range:p. 1587
Series Name:LPI Contribution
Status:Published
Keywords:Mars InSight Regolith Geophysics
Event Title:52nd Lunar and Planetary Science Conference 2021
Event Location:Online
Event Type:international Conference
Event Dates:March 15-19, 2021
Organizer:Lunar and Planetary Institute
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 InSight - HP3
Location: Berlin-Adlershof
Institutes and Institutions:Institute of Planetary Research > Planetary Physics
Deposited By: Grott, Dr.rer.nat. Matthias
Deposited On:21 Apr 2021 09:12
Last Modified:21 Apr 2021 09:12

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