Diapir-induced reorientation of Saturn's moon Enceladus
@article{Nimmo2006DiapirinducedRO, title={Diapir-induced reorientation of Saturn's moon Enceladus}, author={Francis Nimmo and Robert T. Pappalardo}, journal={Nature}, year={2006}, volume={441}, pages={614-616}, url={https://api.semanticscholar.org/CorpusID:4339342} }This work shows that the current polar location of the hotspot of Enceladus can be explained by reorientation of the satellite's rotation axis because of the presence of a low-density diapir, and predicts that the distribution of impact craters on the surface will not show the usual leading hemisphere–trailing hemisphere asymmetry.
135 Citations
Enceladus: An Active Cryovolcanic Satellite
- 2009
Physics, Environmental Science
Enceladus is one of the most remarkable satellites in the solar system, as revealed by Cassini's detection of active plumes erupting from warm fractures near its south pole. This discovery makes…
Convection in Enceladus' ice shell: Conditions for initiation
- 2007
Environmental Science, Geology
Observations of Enceladus by the Cassini spacecraft indicate that this tiny Saturnian moon is geologically active, with plumes of water vapor and ice particles erupting from its southern polar…
Implications of nonsynchronous rotation on the deformational history and ice shell properties in the south polar terrain of Enceladus
- 2019
Environmental Science, Geology
22 . Enceladus : An Active Cryovolcanic Satellite
- 2009
Environmental Science, Physics
Enceladus is one of the most remarkable satellites in the solar system, as revealed by Cassini’s detection of active plumes erupting from warm fractures near its south pole. This discovery makes…
The Dichotomy of Thermal Convection in Enceladus' Ice Shell
- 2011
Environmental Science, Geology
Enceladus exhibits a strong hemispheric dichotomy of tectonism and heat flux, with geologically young, heavily tectonized terrains and a high heat flux in the south polar terrains (SPT) and…
The south polar terrain ( SPT ) of Saturn ’ s moon Enceladus is a mysteriously active region
- 2012
Environmental Science, Geology
[1] The south polar terrain (SPT) of Saturn’s moon Enceladus is a mysteriously active region that exhibits intriguing tectonic signatures and widespread fracturing. The central region of the…
Chapter 21 Enceladus : An Active Cryovolcanic Satellite
- 2009
Physics, Environmental Science
Enceladus is one of the most remarkable satellites in the solar system, as revealed by Cassini’s detection of active plumes erupting from warm fractures near its south pole. This discovery makes…
Origin of ice diapirism, true polar wander, subsurface ocean, and tiger stripes of Enceladus driven by compositional convection
- 2009
Environmental Science, Physics
Shear heating as the origin of the plumes and heat flux on Enceladus
- 2007
Environmental Science, Physics
It is shown that the most likely explanation for the heat and vapour production is shear heating by tidally driven lateral (strike-slip) fault motion with displacement of ∼0.5 m over a tidal period, suggesting that the ice shell is decoupled from the silicate interior by a subsurface ocean.
27 References
Sinker tectonics: An approach to the surface of Miranda
- 1988
Geology, Physics
Images of the Uranian moon Miranda show three areas of complex terrain, trapezoidal to ovoid in shape, with no previously known counterpart. These features, called coronae, are characterized by an…
Extensional tilt blocks on Miranda: Evidence for an upwelling origin of Arden Corona
- 1997
Geology, Environmental Science
Subparallel ridges and troughs in the outer belt of Arden Corona, on the Uranian satellite Miranda, are interpreted as tilt blocks formed by extension and normal faulting. Fault scarps generally face…
Cassini Encounters Enceladus: Background and the Discovery of a South Polar Hot Spot
- 2006
Environmental Science, Physics
Cassini's Composite Infrared Spectrometer (CIRS) detected 3 to 7 gigawatts of thermal emission from the south polar troughs at temperatures up to 145 kelvin or higher, making Enceladus only the third known solid planetary body—after Earth and Io—that is sufficiently geologically active for its internal heat to be detected by remote sensing.
Geodynamics of Icy Satellites
- 1998
Geology, Physics
Geodynamics concerns the internal structure, differentiation and convection, and tectonics of worlds. With respect to icy satellites there exists an excellent literature (e.g., Burns, 1986), and for…
Cassini Observes the Active South Pole of Enceladus
- 2006
Environmental Science, Geology
The shape of Enceladus suggests a possible intense heating epoch in the past by capture into a 1:4 secondary spin/orbit resonance.