Strain coupling between upper mantle and lower crust: natural example from the Běstvina granulite body, Bohemian Massif

0330511 - GFÚ 2010 RIV GB eng J - Journal Article
Machek, Matěj - Ulrich, Stanislav - Janoušek, V.
Strain coupling between upper mantle and lower crust: natural example from the Běstvina granulite body, Bohemian Massif.
Journal of Metamorphic Geology. Roč. 27, č. 9 (2009), s. 721-737. ISSN 0263-4929. E-ISSN 1525-1314
R&D Projects: GA ČR GA205/09/0539
Grant - others:GA ČR(CZ) GA205/06/0688
Institutional research plan: CEZ:AV0Z30120515
Keywords : Bohemian Massif * eclogite * granulite * peridotite * strain coupling * Variscan orogeny * LPO
Subject RIV: DB - Geology ; Mineralogy
Impact factor: 4.157, year: 2009

Strain patterns within mantle rocks and surrounding coarse-grained felsic granulites from the Kutná Hora Crystalline Complex in the Variscan Bohemian Massif have been studied in order to assess their strain coupling. The studied rock association occurs within low-strain domains surrounded by finegrained granulite and migmatite. The Doubrava peridotite contains closely spaced and steeply dipping layers of garnet clinopyroxenite, which are parallel to the NE–SW-striking, high-temperature foliation in nearby granulites, while the Úhrov peridotite lacks such layering. The Spačice eclogite is not associated with peridotite and shows upright folds of alternating coarse- and fine-grained varieties bearing NE– SW-striking axial planes.
Permanent Link: http://hdl.handle.net/11104/0176287