Category / Josephine Peridotite

  • The Mantle Processes Group spent 10 days in southwest Oregon and northern California for fieldwork in the Josephine Peridotite and Trinity Ophiolite. Colleagues from Brown University, Lamont Doherty Earth Observatory, University of Auckland, and University of Oregon joined us for parts of the trip. It was good to be back in the mantle!

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  • 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 helium in the […]

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  • 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.      

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  • June 17, 2013 - Jessica M Warren

    Return to the Josephine Peridotite

    In June we headed up to the Josephine for 4 days of fieldwork on Fresno Bench. This was our first spring foray into the Siskiyou and we had been warned that the weather could be bad. We were fortunate to encounter nothing worse than some clouds and high wind – and more wildflowers than on […]

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  • September 10, 2012 - Jessica M Warren

    Ultramafics of CA and OR

    In late August/early September, we spent two weeks in northern California and southeastern Oregon, looking at ultramafics in the Trinity Ophiolite (CA) and Josephine Peridotite (OR). This trip was part of a Stanford field class, GES 190: Advanced Field Methods, and the students blogged about their experience here.

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  • September 1, 2010 - Jessica M Warren

    Fieldwork in the Josephine Peridotite, Oregon, August 2010

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