Comment on “Revealing the Cape Verde Hotspot Track Across the Great Lakes” by Tao et al.

Abstract Tao et al. (2025, https://doi.org/10.1029/2024gl110777 ) propose that the Cape Verde hotspot influenced lithospheric structures and the geological evolution of the Great Lakes region, ultimately shaping the modern‐day Great Lakes. However, their interpretation conflicts with other observations. Pre‐Mesozoic tectonic features including the Palaeozoic Michigan Basin and major structural zones predate any proposed Mesozoic hotspot and likely controlled basin formation. Tao et al. (2025, https://doi.org/10.1029/2024gl110777 )'s interpretation of a seismic anisotropy anomaly as the remnants of a hotspot track is non‐unique, and inconsistent with a linear hotspot track. Different Atlantic hotspot reconstructions predict widespread plume tracks across North America, making the approach unreliable for constraining regional geodynamics. Prior studies that conclude glacial erosion exploiting pre‐existing tectonic structures offer a more robust and testable explanation for Great Lakes formation.

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Publication Details

Journal
Geophysical Research Letters
Published
2025-06-08
DOI
https://doi.org/10.1029/2025gl115634
Citations
3
Primary Topic
Geological and Geochemical Analysis
Type
article
Field-Weighted Citation Impact
5.60

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Comment on “Revealing the Cape Verde Hotspot Track Across the Great Lakes” by Tao et al.

G. R. Foulger, Alexander L. Peace, Peter Vogt, G. McHone et al.
3 citations
Geophysical Research Letters
Geological and Geochemical Analysis
5.60
article

Comment on “Revealing the Cape Verde Hotspot Track Across the Great Lakes” by Tao et al.

G. R. Foulger, Alexander L. Peace, Peter Vogt, G. McHone, Egor Koptev
article en
3 citations

Abstract

Abstract Tao et al. (2025, https://doi.org/10.1029/2024gl110777 ) propose that the Cape Verde hotspot influenced lithospheric structures and the geological evolution of the Great Lakes region, ultimately shaping the modern‐day Great Lakes. However, their interpretation conflicts with other observations. Pre‐Mesozoic tectonic features including the Palaeozoic Michigan Basin and major structural zones predate any proposed Mesozoic hotspot and likely controlled basin formation. Tao et al. (2025, https://doi.org/10.1029/2024gl110777 )'s interpretation of a seismic anisotropy anomaly as the remnants of a hotspot track is non‐unique, and inconsistent with a linear hotspot track. Different Atlantic hotspot reconstructions predict widespread plume tracks across North America, making the approach unreliable for constraining regional geodynamics. Prior studies that conclude glacial erosion exploiting pre‐existing tectonic structures offer a more robust and testable explanation for Great Lakes formation.

Geophysical Research LettersVol. 52(11)
University of California, Santa Barbara (US), Durham University (GB), International Hospital of Bahrain (BH), Ocean University of China (CN), McMaster University (CA)
Discovery Eye Foundation, Directorate for Engineering, Natural Sciences and Engineering Research Council of Canada
Life below water
Openalex Percentile: Top 4%
Geological and Geochemical Analysis
5.60
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