Natasha Barrett

Natasha Barrett


I’m a geologist/petrologist and high-temperature isotope geochemist fascinated by the solid Earth processes that formed our planet and other rocky bodies in our solar system. My research involves studying Earth’s mantle lithosphere and its related magmas from ancient (>3 Ga) magmas in SW Greenland to younger (<3 Ma) volcanic rocks of the SW Pacific Islands. For my post-doc research, I mainly use 187Re–187Os isotopes and highly siderophile elements (Os, Ir, Ru, Rh, Pt, Pd, Re) coupled with petrology, pressure-temperature studies, and geochemical modeling to further investigate TTG-hosted mafic-ultramafic cumulates from the Fiskefjord region of SW Greenland.  


  • Platinum group elements and Re–Os isotopes applied to oceanic mantle peridotites, specifically subduction-related ophiolites.

  • Isotopic studies on intraplate and back-arc mantle xenoliths from the Fijian Islands.

  • Tectonics of the Fiji–Lau Ridge orocline.
  • Improving detection of ultra-trace elements in silicate minerals using LA-ICP-MS.

  • Investigating potential geological sampling sites on the Moon for upcoming crew-based missions (i.e., Artemis III).

  • In-situ isotopic studies in zircon from lower crustal granulite xenoliths. 



  • 2020 National Geographic Society Early Career Grant in collaboration with the University of the South Pacific, Suva. Project title: "Investigating the link between Earth's sub-oceanic mantle and volcanism in the Southwest Pacific Islands". Grant number: EC-65014R-20.


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