Sutton hotspot: Resolving Ediacaran-Cambrian Tectonics and true polar wander for Laurentia

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ID: 294154
2011
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Abstract
Hotspot tracks represent plate motions relative to mantle sources, and paleomagnetic data from magmatic units along those tracks can quantify motions of those mantle anomalies relative to the Earth9s magnetic field and rotational axis. The Ediacaran Period is notable for rapid and large paleomagnetic apparent polar wander (APW) for many continents. Whereas magmatic units attributed to the "Sutton" mantle plume suggest a practically stationary hotspot track, paleolatitudes of Laurentia for that interval vary dramatically; geologic and paleomagnetic data are at odds unless true polar wander (TPW) is invoked to explain a majority of APW. Here we test the plume-TPW hypothesis by generating the predicted Sutton hotspot track for a stationary plume under a moving plate along the Laurentian margin during the interval from 615 to 530 Ma. Our model is the first to provide a kinematic framework for the extensive large igneous province associated with opening the Iapetus Ocean.
Reference Key
openalex_W2095783334 Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Ross N. Mitchell, Taylor M. Kilian, Timothy D. Raub, David A.D. Evans, Wouter Bleeker, Adam C. Maloof
Journal american journal of science
Year 2011
DOI
10.2475/08.2011.01
URL
https://doi.org/10.2475/08.2011.01
Keywords Keywords not found

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