Print this page4-D Physical Modeling of Tectonics and Basin Migration During Salt
Mobilization at 
Passive
Margins
Juergen Adam, Djordje Grujic, and Steven J. Ings
Dalhousie University, Halifax, NS
The Salt Tectonics Group utilises new 4D experimental techniques with
scaled physical modelling and 2/3D monitoring of deformation to develop
mechanical models for the tectonic evolution of sedimentary basins at passive
continental margins to support oil/gas exploration in structurally complex
areas.
In this study, we conduct a series of scaled 3D analogue experiments with
mixed granular/viscous flow rheologies to simulate the structural evolution and
migration of depositional centers during salt mobilization in a passive margin
wedge. Fault kinematics, surface deformation and subsidence are monitored by
high-resolution digital time-series data and 2D/3D optical strain monitoring
techniques (Particle Imaging Velocimetry). The experimental data are used for
the 4D visualisation of tectonic processes and to study the tectonic evolution,
formation and migration of syntectonic basins in passive margin settings.
Special emphasis is given to the coupling of tectonic and sedimentary processes,
as well as on salt/rock interaction during sedimentary basin evolution.
The quantitative high-resolution 4D data from this new generation of
experimental techniques can be used to develop new concepts for the
interpretation of geological and seismic
data relevant to basin modelling and
petroleum system analysis and will significantly improve our understanding of
continental margin evolution. Because the experimental data base is similar to
results from numerical modelling this quantitative experimental technique will
allow a direct comparison our coupling of analogue and numerical techniques.
AAPG Search and Discovery Article #90039©2005 AAPG Calgary, Alberta, June 16-19, 2005