[1] Univ Wisconsin, Dept Geosci, Madison, WI 53706 USA
[2] Arizona State Univ, Sch Earth & Space Explorat, Tempe, AZ 85287 USA
[3] UCL, Dept Earth Sci, London WC1E 6BT, England
[4] US Geol Survey, 345 Middlefield Rd, Menlo Pk, CA 94025 USA
[5] NASA, Solar Syst Explorat Div, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA
[6] Univ Melbourne, Sch Earth Sci, Parkville, Vic 3010, Australia
[7] Westminster Coll, Dept Geol, Salt Lake City, UT 84105 USA
[8] Curtin Univ, John Laeter Ctr, Western Australian Argon Isotope Facil, Perth, WA 6845, Australia
[9] Curtin Univ, Appl Geol, Perth, WA 6845, Australia
[10] Columbia Univ, Lamont Doherty Earth Observ, Palisades, NY 10964 USA
[11] US Geol Survey, Denver Fed Ctr, Denver, CO 80225 USA
[12] Univ Edinburgh, Sch Geosci, Edinburgh EH8 9XP, Midlothian, Scotland
[13] Lawrence Livermore Natl Lab, Nucl & Chem Sci Div, Livermore, CA 94550 USA
[14] New Mexico Inst Min & Technol, New Mexico Bur Geol & Mineral Resources, Socorro, NM 87801 USA
[15] Univ Queensland, Sch Earth & Environm Sci, Brisbane, Qld 4072, Australia
[16] Univ Alaska Fairbanks, Geophys Inst, Fairbanks, AK 99775 USA
[17] Univ Alaska Fairbanks, Geochronol Lab, Fairbanks, AK 99775 USA
[18] Oregon State Univ, Coll Earth Ocean & Atmospher Sci, Corvallis, OR 97331 USA
[19] Scottish Univ Environm Res Ctr SUERC, Isotope Geosci Unit, E Kilbride G75 0QF, Lanark, Scotland
[20] Univ St Andrews, Dept Earth & Environm Sci, St Andrews KY16 9AJ, Fife, Scotland
[21] Berkeley Geochronol Ctr BGC, 2455 Ridge Rd, Berkeley, CA 94709 USA
[22] Univ Calif Berkeley, Dept Earth & Planetary Sci, Berkeley, CA 94720 USA
[23] Univ Florida, Dept Geol Sci, Gainesville, FL 32611 USA
[24] Auburn Univ, Dept Geosci, Auburn, AL 36849 USA
[25] Vrije Univ Amsterdam, Fac Earth & Life Sci, De Boelelaan 1085, NL-1081 HV Amsterdam, Netherlands
[26] Rutgers State Univ, Dept Earth & Planetary Sci, Wright Rieman Labs, Piscataway, NJ 08854 USA
[27] Univ Versailles St Quentin En Yvelines UVSQ, Inst Pierre Simon Laplace IPSL, Lab Sci Climat & Environm LSCE,UMR8212, Commissariat Energie Atom CEA,Ctr Natl Rech Sci, F-91190 Gif Sur Yvette, France
[28] Univ Paris Saclay, Sci Planete & Univers SPU, F-91190 Gif Sur Yvette, France
[29] Univ Vermont, Dept Geol, Burlington, VT 05401 USA
[30] Geol Survey Canada, 601 Booth St, Ottawa, ON K1A 0E8, Canada
[31] Geol Survey Norway, Leiv Erikssonsvei 39, N-7040 Trondheim, Norway
[32] Natl Inst Adv Ind Sci & Technol, Geol Survey Japan, Ibaraki 3058567, Japan
[33] Japan Agcy Marine Earth Sci & Technol, Yokosuka, Kanagawa 2370061, Japan
[34] Chinese Acad Sci, Coll Earth Sci, Beijing 100029, Peoples R China
[35] SERNAGEOMIN Serv Natl Geol & Min, Anexo 3101,Til Til 1993, Santiago 1993, Chile
[36] Tech Univ Freiberg, Inst Geol, Gustav Zeuner Str 12, D-09599 Freiberg, Germany
[37] Ctr Invest Cient & Educ Super Ensenada CICESE, Dept Geol, Carretera Ensenada Tijuana 3918, Ensenada 22860, Baja California, Mexico
[38] China Univ Geosci, Key Lab Tecton & Petr Resources, Minist Educ, Wuhan 430074, Peoples R China
[39] Univ Arizona, Dept Geosci, Tucson, AZ 85716 USA