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The Thermo-Chemical Evolution of Europa: Constraints on Silicate Volcanism at Europa's Ocean Floor

Hussmann, H. and Breuer, D. (2007) The Thermo-Chemical Evolution of Europa: Constraints on Silicate Volcanism at Europa's Ocean Floor. In: Eos Trans. AGU Fall Meet. Suppl., 88 (52), P53B-1239. American Geophysical Union (AGU), Fall Meeting 2007, 2007-12-10 - 2007-12-14, San Francisco, California (USA).

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One of the key factors for Europa's habitability is the level of internal activity and its possible consequences, e.g. volcanism, at the ocean floor. Tidal dissipation in the silicate mantle would affect Europa's thermal state with consequences for the long-term existence of an ocean and -in case of volcanism- for ocean chemistry. In parameterized thermo-chemical evolution models we consider the thermal coupling between an iron-rich core, a silicate mantle and a water/ ice layer. The models further include tidal heating in both the silicate and the ice. Models without tidal heating already suggest that partial melt in the silicate mantle can be maintained up to a few billion years. In that case, tidal heating in the silicate shell will become important, prolonging the lifetime of partially molten reservoirs and associated ocean-floor volcanism. Heating of the silicate mantle would also affect the thermal state and thickness of the ice shell. Additionally, tidal heating in the mantle may impede the generation of a self-sustained magnetic field in Europa's core. We will discuss consequences of time-dependent orbital parameters due to the resonance locking with Io and Ganymede on Europa's thermal state.

Item URL in elib:https://elib.dlr.de/52441/
Document Type:Conference or Workshop Item (Poster)
Title: The Thermo-Chemical Evolution of Europa: Constraints on Silicate Volcanism at Europa's Ocean Floor
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Date:14 December 2007
Journal or Publication Title:Eos Trans. AGU Fall Meet. Suppl.
Refereed publication:No
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Page Range:P53B-1239
Keywords:Orbital and rotational dynamics, Origin and evolution, Volcanism, Europa, Thermo-chemical Evolution
Event Title:American Geophysical Union (AGU), Fall Meeting 2007
Event Location:San Francisco, California (USA)
Event Type:international Conference
Event Dates:2007-12-10 - 2007-12-14
Organizer:American Geophysical Union
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W EW - Erforschung des Weltraums
DLR - Research area:Space
DLR - Program:W EW - Erforschung des Weltraums
DLR - Research theme (Project):W - Vorhaben Vergleichende Planetologie (old)
Location: Berlin-Adlershof
Institutes and Institutions:Institute of Planetary Research > Planetary Physics
Deposited By: Hempel, Stefanie
Deposited On:15 Jan 2008
Last Modified:27 Apr 2009 14:35

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