HR: 1340h
AN: T43B-1415 [Abstracts]
TI: From top Above to Down Under: Linking the Real World With UnderWorld Models
AU: Mueller, D R
EM: dietmar@geosci.usyd.edu.au
AF: School of Geoscience and University of Sydney Institute of Marine Science, Edgeworth David Buildg. F05
Eastern Ave., Main Campus, University of Sydney, NSW 2006
Australia
AU: * Heine, C
EM: christian@geosci.usyd.edu.au
AF: School of Geoscience and University of Sydney Institute of Marine Science, Edgeworth David Buildg. F05
Eastern Ave., Main Campus, University of Sydney, NSW 2006
Australia
AU: May, D
EM: David.May@sci.monash.edu.au
AF: Computational Mathematics & Geophysics, Building 28,
Monash University, Clayton Campus, Monash University, VIC 3800
Australia
AU: Moresi, L
EM: louis.moresi@sci.monash.edu.au
AF: Computational Mathematics & Geophysics, Building 28,
Monash University, Clayton Campus, Monash University, VIC 3800
Australia
AB:
Intraplate sedimentary basins often show a subsidence behaviour which can not be explained by the classical rift models. It
appears that the basement heterogeneity is one of the major factors controlling the formation and long-term evolution of
those basins. In our project we have tried to integrate the results of an observational study on global intraplate
sedimentary basins with particle-in-cell finite element models.
By using the UnderWorld(ex SNARK) and Ellipsis2d codes, we are building a numerical model library for different
crustal extension scenarios involving a varying heterogeneous basement architecture and attempting to connect the ``pure''
numerical models with real world data as tightly as possible. The direct linking of numerical models with large scale
observations offers a new powerful way to investigate the complex lithosphere dynamics and geological processes that account
for the evolution of intraplate basins, and the influence of the basement architecture on basin evolution. Here we present
the infrastructure and workflow of this new approach together with a first set of modelling results.
DE: 8109 Continental tectonics: extensional (0905)
DE: 8120 Dynamics of lithosphere and mantle: general (1213)
DE: 8169 Sedimentary basin processes
SC: Tectonophysics [T]
MN: Fall Meeting 2005