Provenance of Neoproterozoic and early Paleozoic siliciclastic rocks of the Teplá-Barrandian unit (Bohemian Massif): Evidence from U–Pb detrital zircon ages
Provenance of Neoproterozoic and early Paleozoic siliciclastic rocks of the Teplá-Barrandian unit (Bohemian Massif): Evidence from U–Pb detrital zircon ages
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Teplá-Barrandian 单元(波希米亚地块)新元古代和早古生代硅质碎屑岩的物源:来自 UâPb 碎屑锆石年龄的证据
DOI:
10.1016/j.gr.2010.05.003
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发表时间:
2010
影响因子:
6.1
通讯作者:
Storey
中科院分区:
文献类型:
--
作者:
K. Gerdes;Jeffries;Linnemann;Storey
New LA-ICP-MS U–Pb detrital zircon ages from Ediacaran and Paleozoic siliciclastic rocks are used to constrain provenance and paleogeographic affinities of the Teplá-Barrandian unit (TBU) in the centre of the Bohemian Massif (Central Europe, Czech Republic). The samples taken span the period from ≤635Ma to ∼385Ma and permit recognition of provenance changes that reflect changes in geotectonic regime. Detrital zircon age spectra of two Ediacaran, one Lower Cambrian and three Upper Ordovician samples resemble the ages known from the NW African proportion of Gondwana, particularly the Trans-Saharan belt, while three rocks from higher Lower Cambrian to Lowermost Ordovician strata contain detritus that may have been derived exclusively from local sources. The age spectrum of the Devonian rock is a combination of the NW Gondwanan and local features. These new findings in combination with a wide range of published data are in agreement with a Neoproterozoic subduction-related setting at the margin of Gondwana followed by a Cambrian/Early Ordovician rifting stage and an Ordovician passive margin setting. Furthermore the data are in favour of a position of the TBU at the Gondwanan margin throughout pre-Variscan times.
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影响因子:
2.7
作者:
L. Cocks
通讯作者:
L. Cocks
DOI:
--
发表时间:
2005
期刊:
影响因子:
--
作者:
L. Strnad;M. Mihaljevič
通讯作者:
M. Mihaljevič
影响因子:
3.4
作者:
T. Jeffries;J. Fernández-Suárez;F. Corfu;G. G. Alonso-G.
通讯作者:
T. Jeffries;J. Fernández-Suárez;F. Corfu;G. G. Alonso-G.
DOI:
--
发表时间:
1991
期刊:
影响因子:
--
作者:
E. Silver;C. Rangin
通讯作者:
C. Rangin
DOI:
10.1144/gsl.sp.2000.179.01.04
发表时间:
2000
期刊:
Geological Society, London, Special Publications
影响因子:
--
作者:
J. Tait;M. Schätz;V. Bachtadse;H. Soffel
通讯作者:
H. Soffel