Subduction-like process in Europa's ice shell triggered by enhanced eccentricity periods
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F25%3A10499701" target="_blank" >RIV/00216208:11320/25:10499701 - isvavai.cz</a>
Výsledek na webu
<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=NgI3nX9PUL" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=NgI3nX9PUL</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1126/sciadv.adq8719" target="_blank" >10.1126/sciadv.adq8719</a>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Subduction-like process in Europa's ice shell triggered by enhanced eccentricity periods
Popis výsledku v původním jazyce
Jupiter's icy moon Europa has a liquid water ocean beneath the ice shell and a geologically young surface, both related to extensive tidal processes. Interlaced by tectonic faults, the surface records convergent motions that induced crustal disappearance in some areas. Subduction has been advocated as an explanation; however, its driving mechanism still remains unexplained. We perform numerical simulations to test under what conditions may lateral compression initiate subduction in Europa's ice shell. We demonstrate that subduction-like recycling can occur only for shells of thickness less than or similar to 10 kilometers, transporting the surface ice into the subsurface ocean. We further show that compression large enough to initiate subduction-like behavior in a thin shell is achieved during brief periods of enhanced eccentricity, implying increased hydrothermal activity at the seafloor. Together with the subduction-like transport of surface oxidants, such conjunction should favor chemical disequilibria in the ocean, increasing its astrobiological potential.
Název v anglickém jazyce
Subduction-like process in Europa's ice shell triggered by enhanced eccentricity periods
Popis výsledku anglicky
Jupiter's icy moon Europa has a liquid water ocean beneath the ice shell and a geologically young surface, both related to extensive tidal processes. Interlaced by tectonic faults, the surface records convergent motions that induced crustal disappearance in some areas. Subduction has been advocated as an explanation; however, its driving mechanism still remains unexplained. We perform numerical simulations to test under what conditions may lateral compression initiate subduction in Europa's ice shell. We demonstrate that subduction-like recycling can occur only for shells of thickness less than or similar to 10 kilometers, transporting the surface ice into the subsurface ocean. We further show that compression large enough to initiate subduction-like behavior in a thin shell is achieved during brief periods of enhanced eccentricity, implying increased hydrothermal activity at the seafloor. Together with the subduction-like transport of surface oxidants, such conjunction should favor chemical disequilibria in the ocean, increasing its astrobiological potential.
Klasifikace
Druh
J<sub>imp</sub> - Článek v periodiku v databázi Web of Science
CEP obor
—
OECD FORD obor
10500 - Earth and related environmental sciences
Návaznosti výsledku
Projekt
<a href="/cs/project/GA22-20388S" target="_blank" >GA22-20388S: Vývoj vnějších slupek ledových měsíců z pohledu numerického modelování</a><br>
Návaznosti
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Ostatní
Rok uplatnění
2025
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název periodika
Science Advances
ISSN
2375-2548
e-ISSN
2375-2548
Svazek periodika
11
Číslo periodika v rámci svazku
23
Stát vydavatele periodika
US - Spojené státy americké
Počet stran výsledku
10
Strana od-do
eadq8719
Kód UT WoS článku
001507658900009
EID výsledku v databázi Scopus
2-s2.0-105007981436