Coupled Crust‐Mantle Evolution for> 2 Gy in Southern Africa from Exceptionally Strong Crustal Anisotropy

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Standard

Coupled Crust‐Mantle Evolution for> 2 Gy in Southern Africa from Exceptionally Strong Crustal Anisotropy. / Thybo, Hans; Youssof, Mohammad; Artemieva, Irina M.

I: Acta Geologica Sinica (English Edition), Bind 95, Nr. 1, 27.11.2021, s. 44-47.

Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt

Harvard

Thybo, H, Youssof, M & Artemieva, IM 2021, 'Coupled Crust‐Mantle Evolution for> 2 Gy in Southern Africa from Exceptionally Strong Crustal Anisotropy', Acta Geologica Sinica (English Edition), bind 95, nr. 1, s. 44-47. https://doi.org/10.1111/1755-6724.14828

APA

Thybo, H., Youssof, M., & Artemieva, I. M. (2021). Coupled Crust‐Mantle Evolution for> 2 Gy in Southern Africa from Exceptionally Strong Crustal Anisotropy. Acta Geologica Sinica (English Edition), 95(1), 44-47. https://doi.org/10.1111/1755-6724.14828

Vancouver

Thybo H, Youssof M, Artemieva IM. Coupled Crust‐Mantle Evolution for> 2 Gy in Southern Africa from Exceptionally Strong Crustal Anisotropy. Acta Geologica Sinica (English Edition). 2021 nov. 27;95(1):44-47. https://doi.org/10.1111/1755-6724.14828

Author

Thybo, Hans ; Youssof, Mohammad ; Artemieva, Irina M. / Coupled Crust‐Mantle Evolution for> 2 Gy in Southern Africa from Exceptionally Strong Crustal Anisotropy. I: Acta Geologica Sinica (English Edition). 2021 ; Bind 95, Nr. 1. s. 44-47.

Bibtex

@article{1d680771eab64191911fdde7f78e0413,
title = "Coupled Crust‐Mantle Evolution for> 2 Gy in Southern Africa from Exceptionally Strong Crustal Anisotropy",
abstract = "The long-term stability of Precambrian continental lithosphere depends on the rheology of the lithospheric mantle as well as the coupling between crust and mantle lithosphere, which may be inferred by seismic anisotropy. Anisotropy has never been detected in cratonic crust. Anisotropy in southern Africa, detected by the seismological SKS-splitting method, usually is attributed to the mantle due to asthenospheric flow or frozen-in features of the lithosphere. However, SKS-splitting cannot distinguish between anisotropy in the crust and the mantle. We observe strong seismic anisotropy in the crust of southern African cratons by Receiver Function analysis. Fast axes are uniform within tectonic units and parallel to SKS axes, orogenic strike in the Limpopo and Cape fold belts, and the strike of major dyke swarms. Parallel fast axes in the crust and mantle indicate coupled crust-mantle evolution for more than 2 billion years with implications for strong rheology of the lithosphere.",
author = "Hans Thybo and Mohammad Youssof and Artemieva, {Irina M.}",
year = "2021",
month = nov,
day = "27",
doi = "10.1111/1755-6724.14828",
language = "English",
volume = "95",
pages = "44--47",
journal = "Acta Geologica Sinica",
issn = "1000-9515",
publisher = "Wiley-Blackwell",
number = "1",

}

RIS

TY - JOUR

T1 - Coupled Crust‐Mantle Evolution for> 2 Gy in Southern Africa from Exceptionally Strong Crustal Anisotropy

AU - Thybo, Hans

AU - Youssof, Mohammad

AU - Artemieva, Irina M.

PY - 2021/11/27

Y1 - 2021/11/27

N2 - The long-term stability of Precambrian continental lithosphere depends on the rheology of the lithospheric mantle as well as the coupling between crust and mantle lithosphere, which may be inferred by seismic anisotropy. Anisotropy has never been detected in cratonic crust. Anisotropy in southern Africa, detected by the seismological SKS-splitting method, usually is attributed to the mantle due to asthenospheric flow or frozen-in features of the lithosphere. However, SKS-splitting cannot distinguish between anisotropy in the crust and the mantle. We observe strong seismic anisotropy in the crust of southern African cratons by Receiver Function analysis. Fast axes are uniform within tectonic units and parallel to SKS axes, orogenic strike in the Limpopo and Cape fold belts, and the strike of major dyke swarms. Parallel fast axes in the crust and mantle indicate coupled crust-mantle evolution for more than 2 billion years with implications for strong rheology of the lithosphere.

AB - The long-term stability of Precambrian continental lithosphere depends on the rheology of the lithospheric mantle as well as the coupling between crust and mantle lithosphere, which may be inferred by seismic anisotropy. Anisotropy has never been detected in cratonic crust. Anisotropy in southern Africa, detected by the seismological SKS-splitting method, usually is attributed to the mantle due to asthenospheric flow or frozen-in features of the lithosphere. However, SKS-splitting cannot distinguish between anisotropy in the crust and the mantle. We observe strong seismic anisotropy in the crust of southern African cratons by Receiver Function analysis. Fast axes are uniform within tectonic units and parallel to SKS axes, orogenic strike in the Limpopo and Cape fold belts, and the strike of major dyke swarms. Parallel fast axes in the crust and mantle indicate coupled crust-mantle evolution for more than 2 billion years with implications for strong rheology of the lithosphere.

U2 - 10.1111/1755-6724.14828

DO - 10.1111/1755-6724.14828

M3 - Journal article

VL - 95

SP - 44

EP - 47

JO - Acta Geologica Sinica

JF - Acta Geologica Sinica

SN - 1000-9515

IS - 1

ER -

ID: 287074410