|Title||Discussion of 'The northern Appalachian terrane wreckmodel'|
|Author||van Staal, C R; Wilson, R; Zagorevski, A; Barr, S|
|Source||Canadian Journal of Earth Sciences vol. 59, issue 5, 2022 p. 318-320, https://doi.org/10.1139/cjes-2022-0008 Open Access|
|Alt Series||Natural Resources Canada, Contribution Series 20220017|
|Publisher||Canadian Science Publishing|
|Media||paper; digital; on-line|
|Subjects||general geology; Appalachian Terrain; Cambrian; Ordovician|
|Program||Targeted Geoscience Initiative (TGI-6) Ore systems|
|Released||2022 03 02|
Keppie et al. (2021) presented a Devonian to Carboniferous oroclinal bending hypothesis and dextral strike-slip translation of a single arc terrane to explain the distribution of
Cambrian to Ordovician volcanic rocks in the northern Appalachians. We contend that extant data are incompatible with this hypothesis for reasons documented here.
|Summary||(Plain Language Summary, not published)|
Tectonic models provide a predictive framework for understanding geology and mineral potential of mountain belts. This discussion paper provides a
critique of a revised tectonic model for the development of the Appalachians that was published in Canadian Journal of Earth Sciences. On the basis of close to 30 years of GSC research in the Appalachians, we demonstrate that the revised model is
incompatible with extant data.