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Influence of plate tectonics on outgassing efficiency and gas composition

Noack, L. und Brachmann, C. (2021) Influence of plate tectonics on outgassing efficiency and gas composition. German-Swiss Geodynamics Workshop 2021, 2021-08-30 - 2021-09-01, Bad Belzig, Germany.

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Offizielle URL: http://geodyn-chic.de/geodynamics-ws-2021

Kurzfassung

Accurate measurements of a planet's mass, radius and age together with compositional constraints from the stellar spectrum can help us to deduce potential evolutionary pathways that rocky (exo-)planets can evolve along, and allow us to predict the range of likely atmospheric properties that can then be compared to observations. However, for the evolution of composition and mass of an atmosphere, a large degeneracy exists due to several planetary and exterior factors and processes, making it very difficult to link the interior (and hence outgassing processes) of a planet to its atmosphere. The community therefore thrives now to identify the key factors that impact an atmosphere, and that may lead to distinguishable traces in planetary, secondary outgassed atmospheres. Such key factors are for example the planetary mass (impacting atmospheric erosion processes) or surface temperature (impacting atmospheric chemistry, weathering and interior-atmosphere interactions). Here we investigate the signature that a planet evolving into plate tectonics leaves in its atmosphere due to its impact on volcanic outgassing fluxes and volatile releases to the atmosphere - leading possibly to distinguishable sets of atmospheric compositions for stagnant-lid planets and plate tectonics planets. These preliminary findings will need to be further investigated with coupled atmosphere-interior models including various feedback mechanisms such as condensation and weathering as well as atmospheric escape to space.

elib-URL des Eintrags:https://elib.dlr.de/146043/
Dokumentart:Konferenzbeitrag (Vortrag)
Titel:Influence of plate tectonics on outgassing efficiency and gas composition
Autoren:
AutorenInstitution oder E-Mail-AdresseAutoren-ORCID-iDORCID Put Code
Noack, L.Department of Earth Sciences, Freie Universitat Berlin, Malteserstraβe 74-100, 12249, Berlin, GermanyNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Brachmann, C.caroline.brachmann (at) dlr.dehttps://orcid.org/0009-0006-4753-7536NICHT SPEZIFIZIERT
Datum:31 August 2021
Referierte Publikation:Nein
Open Access:Nein
Gold Open Access:Nein
In SCOPUS:Nein
In ISI Web of Science:Nein
Status:veröffentlicht
Stichwörter:planetary interior, atmospheric composition, volcanic degassing, tectonic regime, plate tectonics, stagnant lid
Veranstaltungstitel:German-Swiss Geodynamics Workshop 2021
Veranstaltungsort:Bad Belzig, Germany
Veranstaltungsart:Workshop
Veranstaltungsbeginn:30 August 2021
Veranstaltungsende:1 September 2021
Veranstalter :Deutsche Geophysikalische Gesellschaft
HGF - Forschungsbereich:Luftfahrt, Raumfahrt und Verkehr
HGF - Programm:Raumfahrt
HGF - Programmthema:Erforschung des Weltraums
DLR - Schwerpunkt:Raumfahrt
DLR - Forschungsgebiet:R EW - Erforschung des Weltraums
DLR - Teilgebiet (Projekt, Vorhaben):R - Exploration des Sonnensystems
Standort: Berlin-Adlershof
Institute & Einrichtungen:Institut für Planetenforschung > Planetenphysik
Hinterlegt von: Sohl, Dr. Frank
Hinterlegt am:23 Nov 2021 14:59
Letzte Änderung:24 Apr 2024 20:45

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