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Experimental Insights into the Geochemistry of MercuryWith the recent estimate of Mercury's surface composition from the X-Ray Spectrometer and Gamma-Ray Spectrometer that were onboard NASA's MErcury Surface, Space ENvironment, Geochemistry and Ranging (MESSENGER) spacecraft, we now have our first opportunity to directly investigate the compositions of lavas from the planet Mercury and indirectly investigate the chemical make-up of its interior. Results from MESSENGER showed exotic surface compositions with more than 3 wt% sulfur in some lavas and relatively low amounts of iron (less than 3 wt%) across the surface. These striking features are consistent with magmatism occurring under highly reducing conditions which has an impact on the thermal and chemical evolution of a planetary body. Here we'll explore the geochemical evolution of Mercury through a series of experimental studies and discuss the implications of low oxygen fugacity on elemental behavior and magmatic processes.
Document ID
20190002158
Acquisition Source
Johnson Space Center
Document Type
Abstract
Authors
Vander Kaaden, Kathleen E.
(Jacobs Technology, Inc. Houston, TX, United States)
Date Acquired
April 3, 2019
Publication Date
March 31, 2019
Subject Category
Lunar And Planetary Science And Exploration
Report/Patent Number
JSC-E-DAA-TN65232
Meeting Information
Meeting: American Chemical Society National Meeting and Expo
Location: Orlando, FL
Country: United States
Start Date: March 31, 2019
End Date: April 4, 2019
Sponsors: American Chemical Society
Funding Number(s)
CONTRACT_GRANT: NNJ13HA01C
Distribution Limits
Public
Copyright
Public Use Permitted.
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