Plate tectonic significance of Middle Cambrian and Ordovician siliciclastic rocks of the Bavarian Facies, Armorican Terrane Assemblage, Germany — U–Pb and Hf isotope evidence from detrital zircons

2010 ◽  
Vol 17 (2-3) ◽  
pp. 223-235 ◽  
Author(s):  
Heinrich Bahlburg ◽  
Jeffrey D. Vervoort ◽  
S. Andrew DuFrane
Keyword(s):  
Detrital Zircons ◽  
Hf Isotope ◽  
Plate Tectonic ◽  
Middle Cambrian ◽  
Tectonic Significance ◽  
Isotope Evidence ◽  
Siliciclastic Rocks

Archean crustal evolution in the northern Yilgarn Craton: U–Pb and Hf-isotope evidence from detrital zircons

2004 ◽  
Vol 131 (3-4) ◽  
pp. 231-282 ◽  
Author(s):  
W.L. Griffin ◽  
E.A. Belousova ◽  
S.R. Shee ◽  
N.J. Pearson ◽  
S.Y. O’Reilly
Keyword(s):  
Detrital Zircons ◽  
Hf Isotope ◽  
Crustal Evolution ◽  
Yilgarn Craton ◽  
Isotope Evidence

Precambrian crustal evolution of the Yangtze Craton: U–Pb and Hf-isotope evidence from detrital zircons

2006 ◽  
Vol 70 (18) ◽  
pp. A366
Author(s):  
Xiaoming Liu ◽  
Shan Gao ◽  
Jin-Hui Yang ◽  
Wenli Ling ◽  
Zhaochu Hu ◽  
...  
Keyword(s):  
Detrital Zircons ◽  
Hf Isotope ◽  
Crustal Evolution ◽  
Yangtze Craton ◽  
Isotope Evidence

scholarly journals Earth’s new tectonic regime at the dawn of the Paleoproterozoic: Hf isotope evidence for efficient crustal growth and reworking in the São Francisco craton, Brazil

Geology ◽  
2021 ◽  
Author(s):  
Henrique Bruno ◽  
Monica Heilbron ◽  
Rob Strachan ◽  
Mike Fowler ◽  
Claudio de Morisson Valeriano ◽  
...  
Keyword(s):  
Plate Tectonics ◽  
Hf Isotope ◽  
Plate Tectonic ◽  
Data Set ◽  
Magmatic Arc ◽  
Metasedimentary Rocks ◽  
Sequence Of Events ◽  
Isotope Evidence ◽  
Geodynamic Models ◽  
End Members

A zircon Hf isotope data set from Archean and Paleoproterozoic magmatic and metasedimentary rocks of the southern São Francisco craton (Brazil) is interpreted as evidence of accretionary and collisional plate tectonics since at least the Archean-Proterozoic boundary. During the Phanerozoic, accretionary and collisional orogenies are considered the end members of different plate tectonic settings, both involving preexisting stable continental lithosphere and consumption of oceanic crust. However, mechanisms for the formation of continental crust during the Archean and Paleoproterozoic are still debated, with the addition of magmatic rocks to the crust being explained by different geodynamic models. Hf isotopes can be used to quantify the proportion of magmatic addition into the crust: positive εHf values are usually interpreted as indications of magmatic input from the mantle, whereas crust-derived rocks show more negative εHf. We show that the crust of the amalgamated Paleoproterozoic tectonostratigraphic terranes that make up the southern São Francisco craton were generated from different proportions of mantle and crustal isotopic reservoirs. Plate tectonic processes are implied by a consistent sequence of events involving (1) the generation of juvenile subduction-related magmatic arc rocks, followed by (2) collisional orogenesis and remelting of older crust, and (3) post-collisional bimodal magmatism.

SHRIMP U-Pb geochronology of the detrital zircons from the Longshoushan Group and its tectonic significance

2007 ◽  
Vol 52 (10) ◽  
pp. 1414-1425 ◽  
Author(s):  
KuoAn Tung ◽  
HoungYi Yang ◽  
DunYi Liu ◽  
JianXin Zhang ◽  
ChienYuan Tseng ◽  
...  
Keyword(s):  
Detrital Zircons ◽  
Tectonic Significance

LA-ICP-MS U–Pb geochronology of detrital zircons from the Zhaochigou Formation-complex in the Helan Mountain and its tectonic significance

2014 ◽  
Vol 59 (13) ◽  
pp. 1425-1437 ◽  
Author(s):  
Liming Li ◽  
Zuoxun Zeng ◽  
Yanjun Lu ◽  
Yunxu Wei ◽  
Shimin Xiang ◽  
...  
Keyword(s):  
Detrital Zircons ◽  
Icp Ms ◽  
Tectonic Significance ◽  
Helan Mountain

scholarly journals Age, HF-isotope systemantics of detritial zircons and the source of conglomerates of the mt. Southern Demerdzhy, Mountainous Crimea

2019 ◽  
pp. 36-61
Author(s):  
S. V. Rud’ko ◽  
N. B. Kuznetsov ◽  
E. A. Belousova ◽  
T. V. Romanyuk
Keyword(s):  
Middle Jurassic ◽  
Age Distribution ◽  
Primary Source ◽  
Upper Jurassic ◽  
Detrital Zircons ◽  
Hf Isotope ◽  
Coarse Grained ◽  
East European ◽  
Scythian Plate ◽  
Isotope Systematics

The U–Pb dating and Hf isotope systematics of detrital zircons from a sandstone interbed in the section of the upper conglomerate sequence of the Mt. South Demerdzhi were carried out. The dominant populations of detrital zircons in the studied sample characterize episodes of magmatic activity within the source of the Upper Jurassic conglomerates. Magmatism was manifested in the Vendian-Cambrian, Carbon-Triassic and Late Jurassic. The åHf values of detrital zircons of these ages indicate the insignificant role of the ancient (Archean–Early Proterozoic) continental crust in the protolith of magmatic chambers. The similarity of the detrital zircons age distribution from the Middle Jurassic and Upper Jurassic conglomerate strata suggests that they are molasses of the Cimmerian orogen. The absence of products of Middle Jurassic magmatism in molasses of the Cimmerian orogen, which we fixed, limits position of the Cimmerian orogen in the southern part of the Scythian plate. It is shown that the primary source of the Precambrian detrital zircons were mobilized within the Cimmerian orogen the crustal fragments of the Peri-Gondwanan origin, rather than the basement complexes of the East European Platform, similar to the complexes of the Ukrainian shield. The reconstruction of the main stages of the accumulation of the coarse-grained strata of the Mountaineous Crimea in the context of the tectonic evolution of the southern margin of Laurasia during the Mesozoic is presented.

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