Matches in SemOpenAlex for { <https://semopenalex.org/work/W3014672247> ?p ?o ?g. }
- W3014672247 endingPage "119599" @default.
- W3014672247 startingPage "119599" @default.
- W3014672247 abstract "Abstract Unlike the well-studied narrow hotspot tracks, the origin of broadly distributed seamount provinces remains a topic of conjecture. Here we present major and trace element and Sr-Nd-Hf-Pb double spike isotope data of a comprehensive sample suite from the Bathymetrists Seamount Province, a broad belt of submarine volcanoes in the eastern equatorial Atlantic, and from the neighboring Cape Verde Ridge, a topographic high on the shoulder of a local fracture zone. The major and trace element results are consistent with the Bathymetrists Seamount Province having formed in an intraplate setting. The isotopic composition of the seamount lavas resemble a HIMU-like signature (206Pb/204Pbin = 19.23–20.35) similar to the nearby St. Helena hotspot composition. Based on plate tectonic reconstructions, a formation of the Bathymetrists Seamount Province by the postulated Sierra Leone plume, believed to be responsible for the geochemical anomaly at the mid ocean ridge at 1.7°N and the nearby St. Peter and Pauls rocks, is not supported. An alternative model that the Bathymetrists Seamount Province was created by edge driven convection in the upper mantle along the boundary of the neighboring Sierra Leone Rise plateau is also not supported by the available data. Plate tectonic reconstructions, however, are consistent with a hotspot origin for the Bathymetrists Seamount Province, as is the presence of a seismic tomographic anomaly at the southwest end of the seamount belt." @default.
- W3014672247 created "2020-04-10" @default.
- W3014672247 creator A5011152663 @default.
- W3014672247 creator A5021053411 @default.
- W3014672247 creator A5029623749 @default.
- W3014672247 creator A5030689105 @default.
- W3014672247 creator A5040759830 @default.
- W3014672247 creator A5058013066 @default.
- W3014672247 creator A5065881467 @default.
- W3014672247 date "2020-06-01" @default.
- W3014672247 modified "2023-09-23" @default.
- W3014672247 title "Insights into the petrogenesis of an intraplate volcanic province: Sr-Nd-Pb-Hf isotope geochemistry of the Bathymetrists Seamount Province, eastern equatorial Atlantic" @default.
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