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Tectonic Processes on Europa: Tidal Stresses, Mechanical Response, and Visible Features
Abstract Europa's orbital eccentricity, driven by the resonance with Io and Ganymede, results in “diurnal” tides (3.5-day period) and possibly in nonsynchronous rotation. Both diurnal variation andExpand
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Shear heating as the origin of the plumes and heat flux on Enceladus
Enceladus, a small icy satellite of Saturn, has active plumes jetting from localized fractures (‘tiger stripes’) within an area of high heat flux near the south pole. The plume characteristics andExpand
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Modeling stresses on satellites due to nonsynchronous rotation and orbital eccentricity using gravitational potential theory
Abstract The tidal stress at the surface of a satellite is derived from the gravitational potential of the satellite's parent planet, assuming that the satellite is fully differentiated into aExpand
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Diapir-induced reorientation of Saturn's moon Enceladus
Enceladus is a small icy satellite of Saturn. Its south polar region consists of young, tectonically deformed terrain and has an anomalously high heat flux. This heat flux is probably due toExpand
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Geology of Ganymede
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Estimates of Europa's ice shell thickness from elastically-supported topography
[1] The thickness of Europa's solid ice shell is uncertain, and has important implications for Europa's habitability and thermal history, and the design of future spacecraft missions. Here we obtainExpand
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Does Europa have a subsurface ocean? Evaluation of the geological evidence
It has been proposed that Jupiter's satellite Europa currently possesses a global subsurface ocean of liquid water. Galileo gravity data verify that the satellite is differentiated into an outer H2OExpand
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Geological evidence for solid-state convection in Europa's ice shell
The ice-rich surface of the jovian satellite Europa is sparsely cratered, suggesting that this moon might be geologically active today. Moreover, models of the satellite's interior indicate thatExpand
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Elastic Thickness and Heat Flux Estimates on Ganymede
We identify sites of apparent flexural uplift at rift zone boundaries on Ganymede using Galileo stere-derived topography. The estimated effective elastic thichness Te is 0.2-0.6 km for a nominalExpand
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Europa: Morphological characteristics of ridges and triple bands from Galileo data (E4 and E6) and assessment of a linear diapirism model
Galileo solid-state imaging (SSI) images of Europa provide high-resolution data on the morphological characteristics of ridges and permit the development of nomenclatural schemes for theirExpand
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