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Article

3 Citations

2,874 Views

28 Pages

Testing Tectonostratigraphic Hypotheses of the Blountian Phase of the Taconic Orogeny in the Southern Appalachians through an Integrated Geochronological and Sedimentological Study of Ordovician K-Bentonites and Quartz Arenites

Achim D. Herrmann,
John T. Haynes,
Richard Robinet,
Peter D. Clift and
Keith E. Goggin

Minerals2023, 13(6), 807;https://doi.org/10.3390/min13060807

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13 June 2023

The tectonic setting of the southernmost part of the eastern margin of Laurentia during the Blountian tectophase (~472–452 Ma) of the Ordovician Taconic Orogeny remains unresolved. Tephras produced by explosive volcanism during this early phase...

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Article

2 Citations

2,985 Views

32 Pages

Machine Learning Applied to K-Bentonite Geochemistry for Identification and Correlation: The Ordovician Hagan K-Bentonite Complex Case Study

Achim D. Herrmann,
John T. Haynes,
Richard M. Robinet and
Norlene R. Emerson

Geosciences2021, 11(9), 380;https://doi.org/10.3390/geosciences11090380

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9 September 2021

Altered tephras (K-bentonites) are of great importance for calibration of the geologic time scale, for local, regional, and global correlations, and paleoenvironmental reconstructions. Thus, definitive identification of individual tephras is critical...

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