Sign on

SAO/NASA ADS Astronomy Abstract Service

· Find Similar Abstracts (with default settings below)
· Electronic Refereed Journal Article (HTML)
· References in the article
· Citations to the Article (1) (Citation History)
· Refereed Citations to the Article
· Also-Read Articles (Reads History)
·
· Translate This Page
Title:
Thermal convection with a water ice I rheology: Implications for icy satellite evolution
Authors:
Freeman, J.; Moresi, L.; May, D. A.
Affiliation:
AA(Research School of Earth Sciences, The Australian National University, Acton, ACT 0200, Australia), AB(School of Mathematical Sciences and Monash Cluster Computing, Monash University, Clayton, VIC 3800, Australia), AC(School of Mathematical Sciences and Monash Cluster Computing, Monash University, Clayton, VIC 3800, Australia)
Publication:
Icarus, Volume 180, Issue 1, p. 251-264. (Icarus Homepage)
Publication Date:
01/2006
Origin:
ELSEVIER
DOI:
10.1016/j.icarus.2005.07.014
Bibliographic Code:
2006Icar..180..251F

Abstract

We model stagnant lid convection for water ice I using a multicomponent rheology, combining grain boundary sliding, dislocation and diffusion creep mechanisms. For the superplastic flow dislocation creep rheology, dislocation creep (n=4) dominates the deformation within the actively convecting sublayer whilst superplastic flow (n=1.8) is the dominant process within the stagnant lid whilst for the superplastic flow diffusion creep rheology, superplastic flow is the dominant deformation mechanism within the convecting sublayer while diffusion creep (n=1) is the dominant deformation process in the stagnant lid. These results suggest deformation in the actively convecting sublayer is likely to be dominated by the mechanism with the largest stress exponent. We also provide heat flux scaling relationships for the superplastic flow, basal slip, dislocation creep superplastic flow and superplastic flow diffusion creep rheologies and provide a simple parameterized convection model of an icy satellite thermal evolution.
Bibtex entry for this abstract   Preferred format for this abstract (see Preferences)
   

Find Similar Abstracts:

Use: Authors
Title
Abstract Text
Return: Query Results Return    items starting with number
Query Form
Database: Astronomy
Physics
arXiv e-prints