Petrography, geochemistry, and tectonic significance of the amphibolites of the Alabama Piedmont

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ID: 299925
1984
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Abstract
Three structurally distinct tectonic blocks. In the northern Piedmont, north of the Brevard Zone, the Mitchell Dam, Ketchepedrakee, and Beaver Dam amphibolites occur intercalated with metasedimentary rocks. In the Inner Piedmont Block, south of the Brevard Zone, the Doss Mountain, Ropes Creek, Waresville, and Zebulon amphibolitic units occur. In the Uchee Block of the southern Piedmont, south of the Towaliga fault zone, the Hudson Rapids Amphibolite occurs. Metaigneous origin; protoliths were tholeiitic basalts. REE patterns are flat with slight LREE enrichment. All the amphibolites are geochemically similar except for Doss Mountain, which has exceptionally low alkali, TiO 2 , REE, and incompatible element contents. Except for Doss Mountain, the parental basalts represent an oceanic rifting environment.--Modified journal abstract.
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openalex_W2096855785 Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Stephen H. Stow, Michael J. Neilson, Thornton L. Neathery
Journal american journal of science
Year 1984
DOI
10.2475/ajs.284.4-5.414
URL
https://doi.org/10.2475/ajs.284.4-5.414
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