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Surface Geology and Tectonism on Enceladus

Helfenstein, Paul and Thomas, Peter and Veverka, Joe and Porco, Carolyn and Giese, Bernd and Wagner, Roland and Roatsch, Thomas and Denk, Tillmann and Neukum, Gerhard (2006) Surface Geology and Tectonism on Enceladus. AGU Fall Meeting 2006, 2006-12-11 - 2006-12-15, San Francisco.

Full text not available from this repository.

Abstract

Enceladus is remarkable not only for its active water ice eruptions near the south pole, but also because its surface geology preserves a system of large-scale tectonic patterns that record past, as well as present centers of tectonic deformation. The currently active South Polar Terrain (SPT) geological province defines a characteristic tectonic style, geometry, and size scale: It is a crudely circular, kilometer-deep topographic depression that subtends ~70?? in arc and is bounded by a circumpolar chain of south facing arcuate scarps and kilometer-scale mountain belts. Nearer its center, ongoing water ice eruptions emanate from a series of ~200 km-long quasi-parallel rifts, called "tiger-stripes" that have an average spacing of 32 km. Surface locations of ancient, now inactive tectonic provinces similar to the SPT are recorded on the trailing side of Enceladus by the similar geological patterns, geometry, and size-scales of two other tectonically disrupted provinces; Sarandib Planitia (4?N, 298?W) and Diyar Planitia (0?N, 240?W). These regions may record the locations of ancient diapirs that have dissipated or perhaps the progressive migration of a single warm diapir to the south pole of Enceladus as suggested by Nimmo and Pappalardo (Nature 441, 614-616).

Item URL in elib:https://elib.dlr.de/45798/
Document Type:Conference or Workshop Item (Speech)
Title:Surface Geology and Tectonism on Enceladus
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Helfenstein, PaulCornell UniversityUNSPECIFIED
Thomas, PeterCornell UniversityUNSPECIFIED
Veverka, JoeCornell UniversityUNSPECIFIED
Porco, CarolynSpace Science Institute BoulderUNSPECIFIED
Giese, BerndUNSPECIFIEDUNSPECIFIED
Wagner, RolandUNSPECIFIEDUNSPECIFIED
Roatsch, ThomasUNSPECIFIEDUNSPECIFIED
Denk, TillmannFreie Universitaet BerlinUNSPECIFIED
Neukum, GerhardFreie Universitaet BerlinUNSPECIFIED
Date:11 December 2006
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Keywords:Cassini, Icy Satellites, Saturnian System
Event Title:AGU Fall Meeting 2006
Event Location:San Francisco
Event Type:international Conference
Event Dates:2006-12-11 - 2006-12-15
Organizer:American Geophysical Union
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W EW - Erforschung des Weltraums
DLR - Research area:Space
DLR - Program:W EW - Erforschung des Weltraums
DLR - Research theme (Project):W - Vorhaben CASSINI (old)
Location: Berlin-Adlershof
Institutes and Institutions:Institute of Planetary Research > Planetary Geology
Deposited By: Roatsch, Dr.rer.nat. Thomas
Deposited On:30 Nov 2006
Last Modified:27 Apr 2009 13:16

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