An Eoarchean continental nucleus for the Fennoscandian Shield and a link to the North Atlantic craton

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Standard

An Eoarchean continental nucleus for the Fennoscandian Shield and a link to the North Atlantic craton. / Petersson, Mikael Andreas; Waight, Tod; Kemp, A.I.S.; Whitehouse, M.J.; Valley, John W.

I: Geology, 2024.

Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt

Harvard

Petersson, MA, Waight, T, Kemp, AIS, Whitehouse, MJ & Valley, JW 2024, 'An Eoarchean continental nucleus for the Fennoscandian Shield and a link to the North Atlantic craton', Geology. https://doi.org/10.1130/G51658.1

APA

Petersson, M. A., Waight, T., Kemp, A. I. S., Whitehouse, M. J., & Valley, J. W. (Accepteret/In press). An Eoarchean continental nucleus for the Fennoscandian Shield and a link to the North Atlantic craton. Geology. https://doi.org/10.1130/G51658.1

Vancouver

Petersson MA, Waight T, Kemp AIS, Whitehouse MJ, Valley JW. An Eoarchean continental nucleus for the Fennoscandian Shield and a link to the North Atlantic craton. Geology. 2024. https://doi.org/10.1130/G51658.1

Author

Petersson, Mikael Andreas ; Waight, Tod ; Kemp, A.I.S. ; Whitehouse, M.J. ; Valley, John W. / An Eoarchean continental nucleus for the Fennoscandian Shield and a link to the North Atlantic craton. I: Geology. 2024.

Bibtex

@article{8b6e1a5474284854acad1c0a18f9eb56,
title = "An Eoarchean continental nucleus for the Fennoscandian Shield and a link to the North Atlantic craton",
abstract = "Enabling the build-up of continental crust is a vital step in the stabilization of cratonic lithosphere. However, these initial crustal nuclei are commonly either destroyed by recycling or buried by younger rocks. In the Fennoscandian Shield, the oldest rocks are ca. 3.5 Ga, but ca. 3.7 Ga inherited and detrital zircons suggest the presence of an older, unexposed crustal substrate. We present U-Pb, O, and Hf isotope data from detrital zircons of three major Finnish rivers as well as zircon O and Hf isotope data from previously dated rocks of the Archean Suomuj{\"a}rvi and Pudasj{\"a}rvi complexes, central Finland. Combined, these dataindicate a previously unidentified ca. 3.75 Ga crustal nucleus in the Fennoscandian Shield. This adds to the growing number of Eoarchean nuclei recognized in Archean terranes around the globe, highlighting the importance of such nuclei in enabling the growth of continental crust. The isotope signatures of the Fennoscandian nucleus correlate with equivalent-aged rocks in Greenland, consistent with a common Eoarchean evolution for Fennoscandia and the North Atlantic craton.",
author = "Petersson, {Mikael Andreas} and Tod Waight and A.I.S. Kemp and M.J. Whitehouse and Valley, {John W.}",
year = "2024",
doi = "https://doi.org/10.1130/G51658.1",
language = "English",
journal = "Geology",
issn = "0091-7613",
publisher = "GeoScienceWorld",

}

RIS

TY - JOUR

T1 - An Eoarchean continental nucleus for the Fennoscandian Shield and a link to the North Atlantic craton

AU - Petersson, Mikael Andreas

AU - Waight, Tod

AU - Kemp, A.I.S.

AU - Whitehouse, M.J.

AU - Valley, John W.

PY - 2024

Y1 - 2024

N2 - Enabling the build-up of continental crust is a vital step in the stabilization of cratonic lithosphere. However, these initial crustal nuclei are commonly either destroyed by recycling or buried by younger rocks. In the Fennoscandian Shield, the oldest rocks are ca. 3.5 Ga, but ca. 3.7 Ga inherited and detrital zircons suggest the presence of an older, unexposed crustal substrate. We present U-Pb, O, and Hf isotope data from detrital zircons of three major Finnish rivers as well as zircon O and Hf isotope data from previously dated rocks of the Archean Suomujärvi and Pudasjärvi complexes, central Finland. Combined, these dataindicate a previously unidentified ca. 3.75 Ga crustal nucleus in the Fennoscandian Shield. This adds to the growing number of Eoarchean nuclei recognized in Archean terranes around the globe, highlighting the importance of such nuclei in enabling the growth of continental crust. The isotope signatures of the Fennoscandian nucleus correlate with equivalent-aged rocks in Greenland, consistent with a common Eoarchean evolution for Fennoscandia and the North Atlantic craton.

AB - Enabling the build-up of continental crust is a vital step in the stabilization of cratonic lithosphere. However, these initial crustal nuclei are commonly either destroyed by recycling or buried by younger rocks. In the Fennoscandian Shield, the oldest rocks are ca. 3.5 Ga, but ca. 3.7 Ga inherited and detrital zircons suggest the presence of an older, unexposed crustal substrate. We present U-Pb, O, and Hf isotope data from detrital zircons of three major Finnish rivers as well as zircon O and Hf isotope data from previously dated rocks of the Archean Suomujärvi and Pudasjärvi complexes, central Finland. Combined, these dataindicate a previously unidentified ca. 3.75 Ga crustal nucleus in the Fennoscandian Shield. This adds to the growing number of Eoarchean nuclei recognized in Archean terranes around the globe, highlighting the importance of such nuclei in enabling the growth of continental crust. The isotope signatures of the Fennoscandian nucleus correlate with equivalent-aged rocks in Greenland, consistent with a common Eoarchean evolution for Fennoscandia and the North Atlantic craton.

U2 - https://doi.org/10.1130/G51658.1

DO - https://doi.org/10.1130/G51658.1

M3 - Journal article

JO - Geology

JF - Geology

SN - 0091-7613

ER -

ID: 381298630