Interactions Between Regional Transcurrent Shearing, Rifting, and Mantle Flow on Venus - Radar and Gravity Interpretations and Earth Analogues.

Harris, Lyal B. (2014). Interactions Between Regional Transcurrent Shearing, Rifting, and Mantle Flow on Venus - Radar and Gravity Interpretations and Earth Analogues. In: Biennial conference of Specialist Group in Tectonics and Structural Geology, Geological Society of Australia, Thredbo, Australie.

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Résumé

Structures formed during indentation and lateral escape in Ishtar Terra on Venus (a planet without plate tectonics) form part of a regional shear system interpreted from Bouguer gravity and resemble the Himalayas or Eastern Alps on Earth. The large displacements of areas of continent-like crust are interpreted to result from mantle tractions / pressure acting against their deep lithospheric mantle 'keels' commensurate with mantle plume-related extension in adjacent rifts. This new perspective of Venus provides an analogue for an Archean Earth without plate tectonics.

Type de document:	Document issu d'une conférence ou d'un atelier
Informations complémentaires:	Affiche
Mots-clés libres:	cisaillement transcourant; rifting; écoulement; Vénus; Terre
Centre:	Centre Eau Terre Environnement
Date de dépôt:	11 nov. 2020 21:35
Dernière modification:	11 nov. 2020 21:35
URI:	https://espace.inrs.ca/id/eprint/4072

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