Assessing uranium and select trace elements associated with breccia pipe uranium deposits in the Colorado River and main tributaries in Grand Canyon, USA

• Fred D. Tillman ,

  Roles Conceptualization, Formal analysis, Investigation, Writing – original draft, Writing – review & editing

  * E-mail: ftillman@usgs.gov

  Affiliation U.S. Geological Survey, Arizona Water Science Center, Tucson, Arizona, United States of America

  https://orcid.org/0000-0002-2922-402X

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• Jessica R. Anderson ,

  Contributed equally to this work with: Jessica R. Anderson, Joel A. Unema, Thomas P. Chapin

  Roles Investigation, Writing – original draft, Writing – review & editing

  Affiliation U.S. Geological Survey, Arizona Water Science Center, Flagstaff, Arizona, United States of America

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• Joel A. Unema ,

  Contributed equally to this work with: Jessica R. Anderson, Joel A. Unema, Thomas P. Chapin

  Roles Investigation, Writing – original draft, Writing – review & editing

  Affiliation U.S. Geological Survey, Arizona Water Science Center, Flagstaff, Arizona, United States of America

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• Thomas P. Chapin

  Contributed equally to this work with: Jessica R. Anderson, Joel A. Unema, Thomas P. Chapin

  Roles Investigation, Writing – original draft, Writing – review & editing

  Affiliation U.S. Geological Survey, Geology, Geophysics and Geochemistry Science Center, Denver, Colorado, United States of America

  https://orcid.org/0000-0001-6587-0734

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