Zircon provenance of SW Caledonian phyllites reveals a distant Timanian sediment source

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985831%3A_____%2F15%3A00454789" target="_blank" >RIV/67985831:_____/15:00454789 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1144/jgs2014-143" target="_blank" >http://dx.doi.org/10.1144/jgs2014-143</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1144/jgs2014-143" target="_blank" >10.1144/jgs2014-143</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Zircon provenance of SW Caledonian phyllites reveals a distant Timanian sediment source

Popis výsledku v původním jazyce

Cambrian to middle Ordovician schists and phyllites in southwestern Baltica, now exposed in the (par-) autochthon to Lower Allochthon nappes of the Scandinavian Caledonides in southern Norway, contain previously unrecognized far-travelled detrital zircons with ages in the intervals 0.47-0.8 and 1.85-3.2Ga and epsilon(Hf) in the range -27 to +18. These ages are assigned to Timanian and Fennoscandian Shield sources respectively and contrast with the locally derived detritus with zircon ages of c. 0.9-1.8Ga and epsilon(Hf) values c. -13 to +10. The far-travelled zircons provide evidence that a steady, long-haul, source-to-sink drainage system existed from the northeastern fringe of Baltica to the SW passive margin across the whole palaeocontinent (c. 2000km) since c. 521 Ma, and that the Timanian orogen shed detritus across large distances towards both its foreland (Baltica) and hinterland (Arctica). There are several arguments against an Avalonian source for these zircons. Recycling of

Název v anglickém jazyce

Zircon provenance of SW Caledonian phyllites reveals a distant Timanian sediment source

Popis výsledku anglicky

Cambrian to middle Ordovician schists and phyllites in southwestern Baltica, now exposed in the (par-) autochthon to Lower Allochthon nappes of the Scandinavian Caledonides in southern Norway, contain previously unrecognized far-travelled detrital zircons with ages in the intervals 0.47-0.8 and 1.85-3.2Ga and epsilon(Hf) in the range -27 to +18. These ages are assigned to Timanian and Fennoscandian Shield sources respectively and contrast with the locally derived detritus with zircon ages of c. 0.9-1.8Ga and epsilon(Hf) values c. -13 to +10. The far-travelled zircons provide evidence that a steady, long-haul, source-to-sink drainage system existed from the northeastern fringe of Baltica to the SW passive margin across the whole palaeocontinent (c. 2000km) since c. 521 Ma, and that the Timanian orogen shed detritus across large distances towards both its foreland (Baltica) and hinterland (Arctica). There are several arguments against an Avalonian source for these zircons. Recycling of

Druh

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

CEP obor

DB - Geologie a mineralogie

OECD FORD obor

—

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2015

Kód důvěrnosti údajů

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

Název periodika

Journal of the Geological Society

ISSN

0016-7649

e-ISSN

—

Svazek periodika

172

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

14

Strana od-do

465-478

Kód UT WoS článku

000356630500005

EID výsledku v databázi Scopus

2-s2.0-84931864031