|
Publications
Helmholtz Centre Potsdam
GFZ German Research Centre for Geosciences Abstract (EDOC: 68)Abstract:
The elasticity theory of dislocations is used in geosciences since the end of
the 1950's to model movements on faults and the resulting deformation field
around them.
The method has been developed into many different directions: Starting from
strike-slip dislocations, other types of sources have been included. Besides
static deformation also the dynamics of wave propagation were treated. After
elastic media, inelastic solids were considered. Research proceeded from
homogeneous to layered earth models.
This paper tries to outline recent developments by other scientists and the
author to provide an impression of the state of the art concerning
three-dimensional models for crustal deformation in layered media.
The main topic is the calculation of subsurface deformation above and below the
source - an approach important for any extension of models into depth and
especially for modelling data from borehole measurements.
Further topics are the treatment of
(i) elliptical fault planes with varying slip instead of rectangular planes with
constant slip,
(ii) fault arrays influencing graben and basin formation,
(iii) applications including gravity effects, bending of the lithosphere, and
erosion.
Additional keywords:
review,
Neigungen, sphaerische numerische Modelle, Subduktion, Ueberblicksartikel (1994): New methods using dislocation theory. Proceedings of the 8th Internat. Sump. on Recent Crustal Movements (CRCM '93) of IUGG and IAG, 265-274. |
||||||
|
||||||