• June 10, 2016 - Jessica M Warren

    Congratulations Dr. D’Errico!

    Megan D’Errico successfully defended her PhD thesis at Stanford University. Megan’s thesis is titled: Heterogeneity and Depletion of the Mantle Assessed from Abyssal Peridotite Geochemistry. Congratulations Megan!  

    Read More
  • April 1, 2016 - Jessica M Warren

    Invited review article on global abyssal peridotites

    This review article presents a global compilation of abyssal peridotite compositions, demonstrating that their compositions reflect a combination of melting, melt-rock interaction and source heterogeneity. This article is open access. Warren, J.M., 2016. Global variations in abyssal peridotite compositions, Lithos, 248-251, 193-219, doi:10.1016/j.lithos.2015.12.023.

    Read More
  • Megan D’Errico’s paper on the geochemistry of peridotites from the Arctic Ocean has been published in Geochimica et Cosmochimica Acta. Based on modeling of peridotite compositions, we show that the presence of refractory harzburgites and thin overlying oceanic crust are best explained by low degrees of melting of a previously melted, heterogeneous mantle. D’Errico, M.E., […]

    Read More
  • January 1, 2016 - Jessica M Warren

    Review article on Re-Os-Pb in mantle sulfides published

    This review article on Re-Os-Pb isotopes in mantle sulfides has been published following the Reviews in Mineralogy and Geochemistry short course on Highly Siderophile and Strongly Chalcophile Elements. This article is open access. Harvey, J., J.M. Warren and S.B. Shirey, 2016. Mantle sulfides and their role in Re-Os-Pb isotope geochronology, Reviews in Mineralogy and Geochemistry, […]

    Read More
  • October 1, 2015 - Jessica M Warren

    The Mantle Processes Group has moved!

    The Mantle Processes Group has moved to the Department of Geological Sciences in the College of Earth, Ocean and Environment at the University of Delaware. Positions are available for students and postdocs. Contact Jessica Warren (warrenj at udel dot edu) for more information.

    Read More
  • July 2, 2015 - Jessica M Warren

    Fieldwork in the Josephine Peridotite

    We returned to the Josephine Peridotite for more sampling of mantle shear zones. In addition to graduate students Nik Deems and Katie Kumamoto, Stanford undergraduate EKela Autry joined us to get data for her summer project. We were also joined by Eric Mittelstaedt and Kate Kaminski from the University of Idaho for Kate’s project on […]

    Read More
  • June 11, 2015 - Jessica M Warren

    Congratulations Arjun!

    Arjun Kohli successfully defended his thesis, “Micromechanical Controls on Brittle to Plastic Fault Zone Deformation”. Congratulations Dr. Kohli!

    Read More
  • October 10, 2014 - Jessica M Warren

    Congratulations Josie!

    Josie Nevitt successfully defended her PhD thesis, “Fault-Related Deformation Within the Brittle-Ductile Transition: Field Observations, Microsctructural Analysis and Mechanical Modeling”. Congratulations Dr. Nevitt!

    Read More
  • September 14, 2014 - Jessica M Warren

    Field class in the Trinity Ophiolite

    This September we returned to the Trinity Ophiolite in Northern California for a Stanford field class (GES 190: Advanced Field Methods). Read the student blog for the class here. We were joined by lab descendent Philomena Gan from Oxford University, who is a student with former lab member Lars Hansen.

    Read More
  • June 26, 2014 - Jessica M Warren

    Too foggy for the Harzburgite Highway

    Three days of sampling in the Josephine Peridotite were not to be this June.    

    Read More