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- W4310190261 abstract "Impacts into icy bodies often generate near-surface melt chambers and thermal perturbations that soften the ice. We explore the post-impact evolution of non-penetrating impacts into Europa's ice shell. Simulations of viscous ice deformation show that dense impact melts founder before refreezing. If the transient cavity depth exceeds half the ice shell thickness, over 40% of the impact melt drains into the underlying ocean. Drainage of impact melts from the near-surface to the ocean occurs on timescales of 103–104 years. The drainage of melts to the ocean occurs for all plausible ice shell thicknesses and ice viscosities, suggesting that melt foundering is a natural consequence of impacts on icy worlds. Post-impact viscous deformation is an important process on icy worlds that affects cryovolcanism, likely modifies crater morphology, creates porous columns through the ice for surface-to-ocean exchange, and may supply the oxidants required for habitability to subsurface oceans." @default.
- W4310190261 created "2022-11-30" @default.
- W4310190261 creator A5034634594 @default.
- W4310190261 creator A5044125685 @default.
- W4310190261 creator A5054289425 @default.
- W4310190261 creator A5082313242 @default.
- W4310190261 date "2022-12-13" @default.
- W4310190261 modified "2023-10-03" @default.
- W4310190261 title "Surface‐To‐Ocean Exchange by the Sinking of Impact Generated Melt Chambers on Europa" @default.
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