METELKIN, Dimitri, Trofimuk Institute of Petroleum Geology and Geophysics, 3 Akademika Koptyuga Prosp, Novosibirsk, 630090, Russia, ERNST, Richard E., Dept. of Geology, Carleton University and Ernst Geosciences, 43 Margrave Avenue, Ottawa, ON K1T 3Y2, Canada and HAMILTON, Michael, Jack Satterly Geochronology Laboratory, Department of Geology, University of Toronto, Toronto, ON M5S 3B1, Canada, Richard.Ernst@ErnstGeosciences.com, Richard.Ernst@ErnstGeosciences.com

SMITH, Emily F.¹, MACDONALD, Francis A.¹, JONES, David S.², CREVELING, Jessica R.¹ and BOLD, Uyanga¹, (1)Department of Earth and Planetary Sciences, Harvard University, Cambridge, MA 02138, (2)Geology Department, Amherst College, Amherst, MA 01002, efsmith@fas.harvard.edu, efsmith@fas.harvard.edu

BOLD, Uyanga¹, MACDONALD, Francis A.², JOHNSTON, David T.¹, WING, Boswell³, HOFFMAN, Paul⁴ and SMITH, Emily F.⁵, (1)Earth and Planetary Sciences, Harvard University, 20 Oxford Street, Cambridge, MA 02138, (2)Department of Earth and Planetary Sciences, Harvard University, Cambridge, MA 02138, (3)Department of Earth and Planetary Sciences, McGill University, 3450 University Street, Montreal, QC H3A 2A7, Canada, (4)Earth & Planetary Sciences, Harvard Univ, 20 Oxford St, Cambridge, MA 02138, (5)Earth and Planetary Science, Harvard University, 20 Oxford Street, Cambridge, MA 02138, ubold@fas.harvard.edu, ubold@fas.harvard.edu

VAN KRANENDONK, Martin J., Geological Survey of Western Australia, 100 Plain St, East Perth, WA 6004, Australia, martin.vankranendonk@dmp.wa.gov.au, martin.vankranendonk@dmp.wa.gov.au

FORBES, Caroline J., Centre for Mineral Exploration Undercover (CMXUC), University of Adelaide, Mawson Building, North Terrace, Adelaide, 5005, Australia, GILES, David, Centre for Mineral Exploration Undercover (CMXUC), University of Adelaide, Adelaide, 5005, Australia and VAN DER WIELEN, Simon, Deep Exploration Technologies CRC (DET CRC), Adelaide, 5005, Australia, caroline.forbes@adelaide.edu.au, caroline.forbes@adelaide.edu.au

HEIM, Nicholas J., Winona State University, Winona, MN 55987 and ALLARD, Stephen T., Department of Geoscience, Winona State University, P.O. Box 5838, Winona, MN 55987, nickheim33@gmail.com, nickheim33@gmail.com

AALTONEN, Ismo S., Research, Posiva Oy, Olkiluoto, Eurajoki, FI-27160, Finland, FRONT, Kai A., VTT, P.O. Box 1000, Espoo, FI-02044 VTT, Finland and GEHÖR, Seppo A., Department of Geosciences, University of Oulu, Oulu, FI-90014, Finland, ismo.aaltonen@posiva.fi, ismo.aaltonen@posiva.fi

AALTONEN, Ismo S., Research, Posiva Oy, Olkiluoto, Eurajoki, FI-27160, Finland and FRONT, Kai A., VTT, P.O. Box 1000, Espoo, FI-02044 VTT, Finland, ismo.aaltonen@posiva.fi, ismo.aaltonen@posiva.fi

COPE, Natalie J., Department of Geology, Kent State University, 221 McGilvrey Hall, 325 South Lincoln Street, Kent, OH 44242, SCHNEIDER, D.A., Department of Earth Sciences, University of Ottawa, Ottawa, ON K1N 6N5, Canada and HOLM, Daniel K., Department of Geology, Kent State University, Kent, OH 44242, ncope1@kent.edu, ncope1@kent.edu

RAHARIMAHEFA, Tsilavo, TINKHAM, Douglas K. and LAFRANCE, Bruno, Mineral Exploration Research Centre, Department of Earth Sciences, Laurentian University, 935 Ramsey Lake Road, Sudbury, ON P3E 2C6, Canada, raharit@gmail.com, raharit@gmail.com

MARTIN, Adam, P., NERC Isotope Geosciences Laboratory, British Geological Survey, Keyworth, Nottingham, NG125GG, United Kingdom, CONDON, Daniel, NERC Isotope Geosciences Laboratory, British Geological Survey, Keyworth, Nottingham, NG12 5GG, United Kingdom, PRAVE, Anthony, Geosciences, Univ of St Andrews, St Andrews, Fife, KY16 9AL, United Kingdom, MELEZHIK, Victor, A., Geological Survey of Norway, Trondheim, 7491, Norway and GÄRTNER, Claudia, Institut für Geologie und Paläontologie, Westfälische Wilhelms-Universität Münster, Corrensstrasse 24, Münster, D-48149, Germany, adam@bgs.ac.uk, adam@bgs.ac.uk

TURNER, Candler C., Geological Sciences, University of Florida, 241 Williamson Hall, Gainesville, FL 32611, MEERT, Joseph G., Geological Sciences, University of Florida, 241 Williamson Hall, PO Box 112120, Gainesville, FL 32611, KAMENOV, George D., Department of Geological Sciences, University of Florida, 241 Williamson Hall, PO Box 112120, Gainesville, FL 32611 and PANDIT, Manoj K., Geology, University of Rajasthan, Jaipur, 302004, India, ccturner@ufl.edu, ccturner@ufl.edu

THERIAULT, Stephanie A., Department of Geological Sciences, University of Minnesota Duluth, Duluth, MN 55812, MILLER, James D., Department of Geological Science, University of Minnesota Duluth, Duluth, MN 55812, BERNDT, Michael E., Minnesota Department of Natural Resources, St. Paul, MN 55155 and RIPLEY, Edward, Department of Geological Sciences, Indiana University, Bloomington, IN 47405, ther0038@d.umn.edu, ther0038@d.umn.edu

JENKIN, Kiel Ryan, Department of Geoscience, Winona State University, Winona, MN 55987 and ALLARD, Stephen T., Department of Geoscience, Winona State University, P.O. Box 5838, Winona, MN 55987, krjenkin4216@winona.edu, krjenkin4216@winona.edu

OWENS, Brent E.¹, HAMILTON, Michael A.², BERQUIST Jr, C.R.³ and HARNER, Patrick L.¹, (1)Department of Geology, College of William and Mary, Williamsburg, VA 23187, (2)Department of Earth Sciences, University of Toronto, Toronto, ON M5S 3B1, Canada, (3)Virginia Department of Mines, Minerals and Energy, Division of Geology and Mineral Resources, Department of Geology-College of William and Mary, Williamsburg, VA 23187, beowen@wm.edu, beowen@wm.edu

DALTON, Lilly A., Geosciences, Smith College, Clark Science Center, Northampton, MA 01063, PRUSS, Sara B., Department of Geosciences, Smith College, Northampton, MA 01063, LAHR, Daniel, Department of Zoology, University of Sao Paulo, Sao Paulo, 05508, Brazil, MACDONALD, Francis A., Department of Earth and Planetary Sciences, Harvard University, Cambridge, MA 02138 and BOSAK, Tanja, Dept. of Earth, Atmospheric, and Planetary Sciences, Massachusetts Institute of Technology, Cambridge, MA 02139, ldalton@smith.edu, ldalton@smith.edu