Continentally-derived solutes in shallow Archean seawater: rare earth element and Nd isotope evidence in iron formation from the 2.9Ga Pongola Supergroup, South Africa
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Iron formations older than 2.5 Ga display positive La, Gd, and Y anomalies as well, but lack regular negative Ce anomalies and instead contain large positive Eu anomalies.
“Iron formations older than 2.5 Ga display positive La, Gd, and Y anomalies as well, but lack regular negative Ce anomalies and instead contain large positive Eu anomalies (e.g., Alexander et al., 2008).”
From Iron formations: A global record of Neoarchaean to Palaeoproterozoic environmental history (2017) · cites this paper as Alexander et al., 2008
In the Archaean and Proterozoic oceans, shallow waters dominated by terrestrial sources had εNd(t) values down to -3.
“values down to -3 would have been typical of shallow-waters dominated by terrestrial sources”
From Iron formations: A global record of Neoarchaean to Palaeoproterozoic environmental history (2017) · cites this paper as Alexander et al., 2008
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- Authors
- Alexander, B. W., Bau, M., Andersson, P., & Dulski, P.
- Affiliations
- Constructor University (DE)
- Swedish Museum of Natural History (SE)
- GFZ Helmholtz Centre for Geosciences (DE)
- Corresponding author
- Alexander, Brian W.
- Venue
- Geochimica et Cosmochimica Acta
- Publisher
- Elsevier BV
- Published
- 2008-01
- Volume
- 72
- Issue
- 2
- Pages
- 378-394
- ISSN
- 0016-7037 (ISSN-L)
- OpenAlex
- W2073418431
- Cited by
- 393
- References
- 81
- Citations by year
- 2026: 25 · 2025: 33 · 2024: 53 · 2023: 37 · 2022: 38 · 2021: 32 · 2020: 25 · 2019: 16 · 2018: 18 · 2017: 20 · 2016: 21 · 2015: 13 · 2014: 16 · 2013: 13 · 2012: 14
- FWCI
- 6.01
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Geochimica et Cosmochimica Acta (publishedVersion)
- Publication Database GFZ (GFZ German Research Centre for Geosciences) (submittedVersion)
- Topics
- Physical Sciences › Earth and Planetary Sciences › Geochemistry and Petrology › Geochemistry and Elemental Analysis
- Physical Sciences › Earth and Planetary Sciences › Paleontology › Paleontology and Stratigraphy of Fossils
- Physical Sciences › Earth and Planetary Sciences › Geophysics › Geological and Geochemical Analysis
- Keywords
- banded iron formations, Pongola Supergroup, rare earth elements, Nd isotopes, Sm-Nd isotopes, hydrothermal input, Eu anomaly, Kaapvaal Craton, Mesoarchean, sea-level change
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