Gutenberg Open Science: Geodynamic modeling with uncertain initial geometries

Please use this identifier to cite or link to this item: http://doi.org/10.25358/openscience-8124

Full metadata record

DC Field	Value	Language
dc.contributor.author	Spang, Arne	-
dc.contributor.author	Baumann, Tobias	-
dc.contributor.author	Kaus, Boris	-
dc.date.accessioned	2022-10-31T08:46:00Z	-
dc.date.available	2022-10-31T08:46:00Z	-
dc.date.issued	2022	-
dc.identifier.uri	https://openscience.ub.uni-mainz.de/handle/20.500.12030/8139	-
dc.description.abstract	Geodynamic codes have become fast and efficient enough to facilitate sensitivity analysis of rheological parameters. With sufficient data, they can even be inverted for. Yet, the geodynamic inverse problem is often regularized by assuming a constant geometry of the geological setting (e.g., shape, location and size of salt diapirs or magma bodies) or approximating irregular bodies with simple shapes like boxes, spheres or ellipsoids to reduce the parameter space. Here, we present a simple and intuitive method to parameterize complex 3D bodies and incorporate them into geodynamic inverse problems. The approach can automatically create an entire ensemble of initial geometries, enabling us to account for uncertainties in imaging data. Furthermore, it allows us to investigate the sensitivity of the model results to geometrical properties and facilitates inverting for them. We demonstrate the method with two examples. A salt diapir in an extending regime and free subduction of an oceanic plate under a continent. In both cases, small differences in the model's initial geometry lead to vastly different results. Be it the formation of faults or the velocity of plates. Using the salt diapir example, we demonstrate that, given an additional geophysical observation, we are able to invert for uncertain geometric properties. This highlights that geodynamic studies should investigate the sensitivity of their models to the initial geometry and include it in their inversion framework. We make our method available as part of the open-source software geomIO.	en_GB
dc.description.sponsorship	Gefördert durch die Deutsche Forschungsgemeinschaft (DFG) - Projektnummer 491381577	de
dc.language.iso	eng	de
dc.rights	CC BY-NC	*
dc.rights.uri	https://creativecommons.org/licenses/by-nc/4.0/	*
dc.subject.ddc	550 Geowissenschaften	de_DE
dc.subject.ddc	550 Earth sciences	en_GB
dc.title	Geodynamic modeling with uncertain initial geometries	en_GB
dc.type	Zeitschriftenaufsatz	de
dc.identifier.doi	http://doi.org/10.25358/openscience-8124	-
jgu.type.contenttype	Scientific article	de
jgu.type.dinitype	article	en_GB
jgu.type.version	Published version	de
jgu.type.resource	Text	de
jgu.organisation.department	FB 09 Chemie, Pharmazie u. Geowissensch.	de
jgu.organisation.number	7950	-
jgu.organisation.name	Johannes Gutenberg-Universität Mainz	-
jgu.rights.accessrights	openAccess	-
jgu.journal.title	Geochemistry, geophysics, geosystems	de
jgu.journal.volume	23	de
jgu.journal.issue	6	de
jgu.pages.alternative	e2021GC010265	de
jgu.publisher.year	2022	-
jgu.publisher.name	Wiley	de
jgu.publisher.place	Hoboken, NJ	de
jgu.publisher.issn	1525-2027	de
jgu.organisation.place	Mainz	-
jgu.subject.ddccode	550	de
jgu.publisher.doi	10.1029/2021GC010265	de
jgu.organisation.ror	https://ror.org/023b0x485	-
jgu.subject.dfg	Naturwissenschaften	de
Appears in collections:	DFG-491381577-G

Files in This Item:

	File	Description	Size	Format
	geodynamic_modeling_with_unce-20221020152449925.pdf		1.92 MB	Adobe PDF	View/Open

Show simple item record