Physical models of grooved terrain tectonics on Ganymede

Autor:	Robert T. Pappalardo, S. L. Colton, Geoffrey C. Collins, Danielle Y. Wyrick, Darrell W. Sims, David A. Ferrill, Alan P. Morris
Rok vydání:	2014
Předmět:	geography Tectonics Geophysics Physical model geography.geographical_feature_category Lithosphere General Earth and Planetary Sciences Degree of similarity Terrain Fault (geology) Seismology Geology
Zdroj:	Geophysical Research Letters. 41:3774-3778
ISSN:	1944-8007 0094-8276
DOI:	10.1002/2014gl060359
Popis:	Grooved terrain on Ganymede consists of distinct areas of parallel to subparallel ridges and troughs at a variety of spatial scales. Grooved terrain has been interpreted as the product of tectonism in the form of fault-accommodated distributed lithospheric extension. We use physical analog methods to test the formation of grooved terrain by imbricate normal faulting in response to distributed extension. Faults and fault systems produced in the models are geometrically and kinematically similar to patterns inferred for some grooved terrains on Ganymede. The high degree of similarity between model structures and those observed on Ganymede indicates that rotational half-graben brittle block faulting can explain at least some tectonic resurfacing on Ganymede and that 20% extension is sufficient to form structures analogous to grooved terrain.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::326c98cff33865c0be73d8f2b7921b8a https://doi.org/10.1002/2014gl060359 Zobrazit plný text záznamu Plný text