Tectonic development of the Samail ophiolite: High‐precision U‐Pb zircon geochronology and Sm‐Nd isotopic constraints on crustal growth and emplacement

  title={Tectonic development of the Samail ophiolite: High‐precision U‐Pb zircon geochronology and Sm‐Nd isotopic constraints on crustal growth and emplacement},
  author={Matthew Rioux and Samuel A. Bowring and Peter B. Kelemen and Stacia M. Gordon and Roberta Balstad Miller and Francis Ő. Dudás},
  journal={Journal of Geophysical Research: Solid Earth},
New high‐precision single grain U‐Pb zircon geochronology and whole rock Nd isotopic data provide insight into the magmatic and tectonic development of the Samail ophiolite. The analyzed rocks can be broadly divided into two groups based on their structural position, dates, and isotopic composition: an older group related to on‐axis magmatism and a younger group of post‐ridge dikes, sills, and stocks. On‐axis gabbros, tonalites and trondhjemites yielded Th‐corrected 206Pb/238U dates from 96.441… 

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