Growth rate of the preserved continental crust: II. Constraints from Hf and O isotopes in detrital zircons from Greater Russian Rivers

Wang, Christina Yan; Campbell, Ian H.; Stepanov, Aleksandr S.; Allen, Charlotte M.; Бурцев, И. Н.

doi:10.1016/j.gca.2010.12.010

Cited by 83 publications

(54 citation statements)

References 76 publications

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“…Present day sands from the large rivers draining the East European Platform, contain dominant populations of Archean and Paleoproterozoic zircons (Safonova et al, 2010;Wang et al, 2011). The absence of Archean-Paleoproterozoic rocks in the Pontides and their presence north of the Black Sea coupled with the southeasterly paleocurrents measured in the eastern and central parts of the Çağlayan Basin indicate that these parts of the basin were sourced from north of the Black Sea.…”

Section: Archean and Paleoproterozoic Zirconsmentioning

confidence: 99%

Provenance of a large Lower Cretaceous turbidite submarine fan complex on the active Laurasian margin: Central Pontides, northern Turkey

Akdoğan

Okay

Sunal

et al. 2017

Journal of Asian Earth Sciences

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The Pontides formed the southern active margin of Laurasia during the Mesozoic. They became separated from mainland Laurasia during the Late Cretaceous, with the opening of the Black Sea as an oceanic back-arc basin. During the Early Cretaceous, a large submarine turbidite fan complex developed in the Central Pontides. The turbidites cover an area of 400 km by 90 km with a thickness of more than 2 km. We have investigated the provenance of these turbidites-the Çağlayan Formation-using paleocurrent measurements, U-Pb detrital zircon ages, REE abundances of dated zircons and geochemistry of detrital rutile grains. than 2% of the total zircon population, which implies lack of a coeval magmatic arc in the region. This is compatible with the absence of the Lower Cretaceous granites in the Pontides. Thus, although the Çağlayan Basin occupied a fore-arc position above the subduction zone, the arc was missing, probably due to flat subduction, and the basin was 3 largely fed from the Ukrainian Shield in the north. This also indicates that the Black Sea opened after the Early Cretaceous following the deposition of the Çağlayan Formation.

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Section: Archean and Paleoproterozoic Zirconsmentioning

confidence: 99%

Provenance of a large Lower Cretaceous turbidite submarine fan complex on the active Laurasian margin: Central Pontides, northern Turkey

Akdoğan

Okay

Sunal

et al. 2017

Journal of Asian Earth Sciences

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“…This oxygen-isotope based criterion has subsequently been used in many other studies (e.g. Wang et al 2009Wang et al , 2011Lancaster et al 2011), typically revealing that crustal growth in any one particular region occurs in discrete episodes. Along with Hf isotopes, oxygen isotopes in zircon provide equivocal information, and thus their use as a binary discriminator is less than ideal (i.e.…”

Section: Crustal Growth Ratementioning

confidence: 99%

“…These have been used as a broad representation of the continental crust for studying its age and composition, and from this, the patterns of continental growth and evolution (e.g. Wang et al 2009Wang et al , 2011Iizuka et al 2010Iizuka et al , 2013. In this paper, we review some of the major contributions that zircon studies have made to our understanding of the formation and evolution of continental crust.…”

mentioning

confidence: 99%

The zircon archive of continent formation through time

Roberts¹,

Spencer²

2014

200

136

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The strong resilience of the mineral zircon and its ability to host a wealth of isotopic information make it the best deep-time archive of Earth's continental crust. Zircon is found in most felsic igneous rocks, can be precisely dated and can fingerprint magmatic sources; thus, it has been widely used to document the formation and evolution of continental crust, from pluton-to global-scale. Here, we present a review of major contributions that zircon studies have made in terms of understanding key questions involving the formation of the continents. These include the conditions of continent formation on early Earth, the onset of plate tectonics and subduction, the rate of crustal growth through time and the governing balance of continental addition v. continental loss, and the role of preservation bias in the zircon record.

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“…It is argued that zircons from large rivers that drain large areas of continental crust provide the best way to obtain an unbiased and representative sample of the continental crust therein (e.g. Iizuka, 2005;Campbell and Allen, 2008;Wang et al, 2009;Iizuka et al, 2010;Wang et al, 2011;Yin et al, 2012;Iizuka et al, 2013). However, Allegre and Rousseau (1984) and Dhuime et al (2011) have demonstrated that continental erosion results in a distinct bias toward younger lithotectonic domains.…”

Section: Introductionmentioning

confidence: 99%

Generation and preservation of continental crust in the Grenville Orogeny

Spencer

Cawood

Hawkesworth

et al. 2015

Geoscience Frontiers

130

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a b s t r a c tDetrital zircons from modern sediments display an episodic temporal distribution of U-Pb crystallization ages forming a series of 'peaks' and 'troughs'. The peaks are interpreted to represent either periods of enhanced generation of granitic magma perhaps associated with mantle overturn and superplume events, or preferential preservation of continental crust during global collisional orogenesis. The close association of those peaks with the assembly of supercontinents implies a causal relationship between collisional orogenesis and the presence of zircon age peaks. Here these two end-member models (episodic periodicity of increased magmatism versus selective preservation during collisional orogenesis) are assessed using U-Pb, Hf, and O analysis of detrital zircons from sedimentary successions deposited during the w1.3e1.

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Growth rate of the preserved continental crust: II. Constraints from Hf and O isotopes in detrital zircons from Greater Russian Rivers

Cited by 83 publications

References 76 publications

Provenance of a large Lower Cretaceous turbidite submarine fan complex on the active Laurasian margin: Central Pontides, northern Turkey

Provenance of a large Lower Cretaceous turbidite submarine fan complex on the active Laurasian margin: Central Pontides, northern Turkey

The zircon archive of continent formation through time

Generation and preservation of continental crust in the Grenville Orogeny

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