Tracking arc-continent collision subduction zone processes from high-pressure rocks in the southern Urals

Citation
D. Brown et al., Tracking arc-continent collision subduction zone processes from high-pressure rocks in the southern Urals, J GEOL SOC, 157, 2000, pp. 901-904
Citations number
24
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Earth Sciences
Journal title
JOURNAL OF THE GEOLOGICAL SOCIETY
ISSN journal
0016-7649 → ACNP
Volume
157
Year of publication
2000
Part
5
Pages
901 - 904
Database
ISI
SICI code
0016-7649(200009)157:<901:TACSZP>2.0.ZU;2-X
Abstract
Subduction-related high-pressure metamorphic rocks in the southern Urals co nfirm material Bus was active within the subduction zone. Suprasubduction z one ophiolitic material was tectonically eroded in an intraoceanic setting, metamorphosed under mantle conditions and exhumed. With the entrance of th e East European Craton into the subduction zone, the upper continental crus t was removed at a shallow level, whereas middle crustal material was subdu cted to mantle depths, metamorphosed under eclogite facies conditions and i nteracted,vith the mantle,wedge. Eclogite-bearing rocks were exhumed to an upper mantle level and juxtaposed against material that was tectonically er oded from the fore-are region of the upper plate.