Timing, styles, and kinematics of Cambro-Ordovician extension in the Teplá-Barrandian Unit, Bohemian Massif, and its bearing on the opening of the Rheic Ocean

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F13%3A10173784" target="_blank" >RIV/00216208:11310/13:10173784 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1007/s00531-012-0811-2" target="_blank" >http://dx.doi.org/10.1007/s00531-012-0811-2</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s00531-012-0811-2" target="_blank" >10.1007/s00531-012-0811-2</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Timing, styles, and kinematics of Cambro-Ordovician extension in the Teplá-Barrandian Unit, Bohemian Massif, and its bearing on the opening of the Rheic Ocean

Popis výsledku v původním jazyce

This paper describes late Cambrian dikes and Early Ordovician volcano-sedimentary successions of the Prague Basin, Bohemian Massif, to discuss the timing and kinematics of breakup of the northern margin of Gondwana. Andesitic dikes indicate minor E-W crustal extension in the late Cambrian, whereas the Tremadocian to Dapingian lithofacies distribution and linear array of depocenters suggest opening of this Rheic Ocean rift-related basin during NW-SE pure shear-dominated extension. This kinematic change was associated with the onset of basic submarine volcanism, presumably resulting from decompression mantle melting as the amount of extension increased. We conclude from these inferences and from a comparison with other Avalonian-Cadomian terranes that the rifting along the northern Gondwana margin was a two-stage process involving one major pulse of terrane detachment in the early Cambrian and one in the Early Ordovician. While the geodynamic cause for the former phase remains unclear, b

Název v anglickém jazyce

Timing, styles, and kinematics of Cambro-Ordovician extension in the Teplá-Barrandian Unit, Bohemian Massif, and its bearing on the opening of the Rheic Ocean

Popis výsledku anglicky

This paper describes late Cambrian dikes and Early Ordovician volcano-sedimentary successions of the Prague Basin, Bohemian Massif, to discuss the timing and kinematics of breakup of the northern margin of Gondwana. Andesitic dikes indicate minor E-W crustal extension in the late Cambrian, whereas the Tremadocian to Dapingian lithofacies distribution and linear array of depocenters suggest opening of this Rheic Ocean rift-related basin during NW-SE pure shear-dominated extension. This kinematic change was associated with the onset of basic submarine volcanism, presumably resulting from decompression mantle melting as the amount of extension increased. We conclude from these inferences and from a comparison with other Avalonian-Cadomian terranes that the rifting along the northern Gondwana margin was a two-stage process involving one major pulse of terrane detachment in the early Cambrian and one in the Early Ordovician. While the geodynamic cause for the former phase remains unclear, b

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

DB - Geologie a mineralogie

OECD FORD obor

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Projekt

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Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)<br>S - Specificky vyzkum na vysokych skolach<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2013

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

International Journal of Earth Sciences

ISSN

1437-3254

e-ISSN

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Svazek periodika

102

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

19

Strana od-do

415-433

Kód UT WoS článku

000314899300003

EID výsledku v databázi Scopus

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