Highly siderophile element systematics of the 3.3Ga Weltevreden komatiites, South Africa: Implications for early Earth history

Earth and Planetary Science Letters

Volumn 311, Issue 3-4, 2011, Pages 253-263

  Connolly, Brian D ^a   Puchtel, Igor S ^a   Walker, Richard J ^a   Arevalo, Ricardo ^a   Piccoli, Philip M ^a   Byerly, Gary ^b   Robin Popieul, Christophe ^c   Arndt, Nick ^c  

^a University of Maryland   (United States)

^b LOUISIANA STATE UNIVERSITY   (United States)

^c UNIVERSITÉ GRENOBLE ALPES   (France)

Author keywords

Barberton Greenstone Belt; Early Archean komatiites; Highly siderophile elements; Late accretion; Mantle plume; Re Os isotope system

Indexed keywords

ARCHEAN; GREENSTONE BELTS; HIGHLY SIDEROPHILE ELEMENTS; LATE ACCRETION; MANTLE PLUME; RE-OS ISOTOPE SYSTEM;

FERMIUM; GALLIUM; IRIDIUM; ISOTOPES; MELTING; OLIVINE; OSMIUM; PALLADIUM; PLATINUM; THERMAL PLUMES; TRACE ELEMENTS; VANADIUM;

RHENIUM;

ACCRETION; ARCHEAN; EMPLACEMENT; GREENSTONE BELT; KOMATIITE; LAVA; MAGMA CHEMISTRY; MANTLE PLUME; MELTING; PARTITIONING; RHENIUM-OSMIUM DATING; SIDEROPHILE ELEMENT;

BARBERTON GREENSTONE BELT; SOUTH AFRICA;

EID: 80054114517     PISSN: 0012821X     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.epsl.2011.09.039     Document Type: Article

References (107)

1. Abbott D.H., Burgess L., Longhi J., Smith W.H.F. An empirical thermal history of the Earth's upper mantle. J. Geophys. Res. 1994, 99:13835-13850.
2. Allègre C.J. Genesis of Archaean komatiites in a wet ultramafic subducted plate. Komatiites 1982, 495-500. George Allen and Unwin, London. N.T. Arndt, E.G. Nisbet (Eds.).
3. Anhaeusser C.R. The anatomy of an extrusive-intrusive Archaean mafic-ultramafic sequence: the Nelshoogte Schist Belt and Stolzburg Layered Ultramafic Complex, Barberton Greenstone Belt, South Africa. S. Afr. J. Geol. 2001, 104(2):167-204.
4. Arevalo R., McDonough W.F. Tungsten geochemistry and implications for understanding the Earth's interior. Earth Planet. Sci. Lett. 2008, 272(3-4):656-665.
5. Arevalo R.J., McDonough W.F., Piccoli P.M. In situ determination of first-Row transition metal, Ga and Ge abundances in geological materials via medium-resolution LA-ICP-MS. Geostand. Geoanal. Res. 2011, 34:1-21.
6. Armstrong R.A., Compston W., DeWit M.J., Williams I.S. The stratigraphy of the 3.5-3.2Ga Barberton greenstone belt revisited: a single zircon ion microprobe study. Earth Planet. Sci. Lett. 1990, 101(1):90-106.
7. Arndt N.T. Differentiation of komatiite flows. J. Petrol. 1986, 27(2):279-301.
8. Arndt N.T., Jenner G.A. Crustally contaminated komatiites and basalts from Kambalda, Western Australia. Chem. Geol. 1986, 56:229-255.
9. Arndt N.T., Ginibre C., Chauvel C., Albarède F., Cheadle M., Herzberg C., Jenner G., Lahaye Y. Were komatiites wet?. Geology 1998, 26(8):739-742.
10. Arndt N.T., Lesher C.M., Barnes S.J. Komatiite 2008, Cambridge University Press, Cambridge, UK.
11. Barnes S.-J., Naldrett A.J., Gorton M.P. The origin of the fractionation of platinum-group elements in terrestrial magmas. Chem. Geol. 1985, 53(3-4):303-323.
12. Beattie P., Ford C., Russell D. Partition coefficients for olivine-melt and orthopyroxene-melt systems. Contrib. Mineral. Petrol. 1991, 109(2):212-224.
13. Becker H. Re-Os fractionation in eclogites and blueschists and the implications for recycling of oceanic crust into the mantle. Earth Planet. Sci. Lett. 2000, 177(3-4):287-300.
14. Becker H., Horan M.F., Walker R.J., Gao S., Lorand J.-P., Rudnick R.L. Highly siderophile element composition of the Earth's primitive upper mantle: constraints from new data on peridotite massifs and xenoliths. Geochim. Cosmochim. Acta 2006, 70(17):4528-4550.
15. Birck J.L., Roy-Barman M., Capman F. Re-Os isotopic measurements at the femtomole level in natural samples. Geostand. Newsl. 1997, 20(1):19-27.
16. Bockrath C., Ballhaus C., Holzheid A. Fractionation of the platinum-group elements during mantle melting. Science 2004, 305(5692):1951-1953.
17. Bottke W.F., Walker R.J., Day J.M.D., Nesvorny D., Elkins-Tanton L. Stochastic Late Accretion to Earth, the Moon, and Mars. Science 2010, 330(6010):1527-1530.
18. Boyet M., Carlson R.W. Nd-142 evidence for early (>4.53Ga) global differentiation of the silicate Earth. Science 2005, 309(5734):576-581.
19. Boyet M., Carlson R.W. A new geochemical model for the Earth's mantle inferred from 146Sm-142Nd systematics. Earth Planet. Sci. Lett. 2006, 250(1-2):254-268.
20. 187Os systematics of abyssal peridotites. Earth Planet. Sci. Lett. 2000, 177(3-4):319-335.
21. Brügmann G.E., Arndt N.T., Hofmann A.W., Tobschall H.J. Noble metal abundances in komatiite suites from Alexo, Ontario, and Gorgona Island, Colombia. Geochim. Cosmochim. Acta 1987, 51(8):2159-2169.
22. Byerly G.R., Kröner A., Lowe D.R., Todt W., Walsh M.M. Prolonged magmatism and time constraints for sediment deposition in the Early Archean Barberton greenstone belt-evidence from the Upper Onverwacht and Fig Tree Groups. Precambrian Res. 1996, 78(1-3):125-138.
23. Campbell I.H., Griffiths R.W., Hill R.I. Melting in an Archaean mantle plume: head it's basalts, tails it's komatiites. Nature 1989, 339(6227):697-699.
24. Canil D. Vanadium partitioning and the oxidation state of Archaean komatiite magmas. Nature 1997, 389(6653):842-845.
25. Canil D. Vanadium partitioning between orthopyroxene, spinel and silicate melt and the redox states of mantle source regions for primary magmas. Geochim. Cosmochim. Acta 1999, 63(3-4):557-572.
26. Canil D. Vanadium in peridotites, mantle redox and tectonic environments: Archean to present. Earth Planet. Sci. Lett. 2002, 195(1-2):75-90.
27. Canil D., Fedortchouk Y. Olivine-liquid partitioning of vanadium and other trace elements, with applications to modern and ancient picrites. Can. Mineral. 2001, 39:319-330.
28. Capobianco C.J., Drake M.J. Partitioning of ruthenium, rhodium, and palladium between spinel and silicate melt and implications for platinum group element fractionation trends. Geochim. Cosmochim. Acta 1990, 54(3):869-874.
29. Capobianco C.J., Hervig R.L., Drake M.J. Experiments on crystal/liquid partitioning of Ru, Rh, and Pd for magnetite and hematite solid solutions crystallized from silicate melts. Chem. Geol. 1994, 113(1-2):23-43.
30. Carlson R.W., Boyet M. Composition of the Earth's interior: the importance of early events. Philos. Trans. R. Soc. A Math. Phys. Eng. Sci. 2008, 366(1883):4077-4103.
31. Chou C.-L., Shaw D.M., Crocket J.H. Siderophile trace elements in the Earth's oceanic crust and upper mantle. J. Geophys. Res. 1983, 88(S2):A507-A518.
32. Cohen A.S., Waters F.G. Separation of osmium from geological materials by solvent extraction for analysis by thermal ionisation mass spectrometry. Anal. Chim. Acta 1996, 332(2-3):269-275.
33. Cowden A. Emplacement of komatiite lava flows and associated nickel sulfides at Kambalda, Western Australia. Econ. Geol. 1988, 83(2):436-442.
34. Cowden A., Donaldson M.J., Naldrett A.J., Campbell I.H. Platinum-group elements and gold in the komatiite-hosted Fe-Ni-Cu sulfide deposits at Kambalda, Western Australia. Econ. Geol. 1986, 81:1226-1235.
35. Creaser R.A., Papanastassiou D.A., Wasserburg G.J. Negative thermal ion mass-spectrometry of osmium, rhenium, and iridium. Geochim. Cosmochim. Acta 1991, 55(1):397-401.
36. 4He mantle. Earth Planet. Sci. Lett. 2009, 278(3-4):267-277.
37. Fiorentini M.L., Barnes S.J., Maier W.D., Burnham O.M., Heggie G. Global variability in the platinum-group element contents of komatiites. J. Petrol. 2011, 52(1):83-112.
38. Fleet M.E., Crocket J.H., Liu M., Stone W.E. Laboratory partitioning of platinum-group elements (PGE) and gold with application to magmatic sulfide-PGE deposits. Lithos 1999, 47(1-2):127-142.
39. Fleet M.E., Liu M., Crocket J.H. Partitioning of trace amounts of highly siderophile elements in the Fe-Ni-S system and their fractionation in nature. Geochim. Cosmochim. Acta 1999, 63(17):2611-2622.
40. Grove T.L., Parman S.W. Thermal evolution of the Earth as recorded by komatiites. Earth Planet. Sci. Lett. 2004, 219(3-4):173-187.
41. Groves D.I., Korkiakoski E.A., McNaughton N.J., Lesher C.M., Cowden A. Thermal erosion by komatiites at Kambalda, Western Australia and the genesis of nickel ores. Nature 1986, 319(6049):136-139.
42. Harvey J., Gannoun A., Burton K.W., Rogers N.W., Alard O., Parkinson I.J. Ancient melt extraction from the oceanic upper mantle revealed by Re-Os isotopes in abyssal peridotites from the Mid-Atlantic ridge. Earth Planet. Sci. Lett. 2006, 244(3-4):606-621.
43. Herzberg C. Generation of plume magmas through time: an experimental perspective. Chem. Geol. 1995, 126(1):1-16.
44. Herzberg C., Asimow P.D. Petrology of some oceanic island basalts: PRIMELT2.XLS software for primary magma calculation. Geochem. Geophys. Geosyst. 2008, 9.
45. Herzberg C., Asimow P.D., Arndt N., Niu Y.L., Lesher C.M., Fitton J.G., Cheadle M.J., Saunders A.D. Temperatures in ambient mantle and plumes: constraints from basalts, picrites, and komatiites. Geochem. Geophys. Geosyst. 2007, 8. Article Q02006.
46. Herzberg C., Condie K., Korenaga J. Thermal history of the Earth and its petrological expression. Earth Planet. Sci. Lett. 2010, 292(1-2):79-88.
47. Hofmann A.W. Chemical differentiation of the Earth: the relationship between mantle, continental crust and oceanic crust. Earth Planet. Sci. Lett. 1988, 90(3):297-314.
48. Horan M.F., Walker R.J., Morgan J.W., Grossman J.N., Rubin A.E. Highly siderophile elements in chondrites. Chem. Geol. 2003, 196(1-4):5-20.
49. Jahn B.M., Gruau G., Glikson A.Y. Komatiites of the Onverwacht Group, South Africa: REE geochemistry, Sm-Nd age and mantle evolution. Contrib. Mineral. Petrol. 1982, 80(1):25-40.
50. Kareem, K. (2005). Komatiites of the Weltevreden Formation, Barberton Greenstone Belt, South Africa: Implications for the chemistry and temperature of the Archean mantle. Department of Geology and Geophysics. Baton Rouge, Louisiana State University. Unpublished Ph.D Thesis.
51. Kareem K.M., Byerly G.R. Petrology and geochemistry of 3.3 Ga komatiites-Weltevreden Formation, Barberton Greenstone Belt. LPSC XXXIV, Houston, TX 2003.
52. Keays R.R. The role of komatiitic and picritic magmatism and S-saturation in the formation of ore deposits. Lithos 1995, 34(1-3):1-18.
53. Kimura K., Lewis R.S., Anders S. Distribution of gold and rhenium between nickel-iron and silicate melts; implications for abundance of siderophile elements on the earth and moon. Geochim. Cosmochim. Acta 1974, 38(5):683-701.
54. Korenaga J. Urey ratio and the structure and evolution of Earth's mantle. Rev. Geophys. 2008, 46(2).
55. Kröner A., Hegner E., Wendt J.I., Byerly G.R. The oldest part of the Barberton granitoid-greenstone terrain, South Africa: evidence for crust formation between 3.5 and 3.7Ga. Precambrian Res. 1996, 78(1-3):105-124.
56. Lahaye Y., Arndt N.T. Alteration of a komatiite flow from Alexo, Ontario. J. Petrol. 1996, 37(6):1261-1284.
57. Lesher C.M., Lee R.F., Groves D.I., Bickle M.J., Donaldson M.J. Geochemistry of komatiites from Kambalda, Western Australia: I. Chalcophile-element depletion, a consequence of sulfide liquid separation from komatiitic magmas. Econ. Geol. 1981, 76(6):1714-1728.
58. Liu C.Z., Snow J.E., Brugmann G., Hellebrand E., Hofmann A.W. Non-chondritic HSE budget in Earth's upper mantle evidenced by abyssal peridotites from Gakkel ridge (Arctic Ocean). Earth Planet. Sci. Lett. 2009, 283(1-4):122-132.
59. Lowe D.R. Accretionary history of the Archean Barberton Greenstone Belt (3.55-3.22Ga), southern Africa. Geology 1994, 22(12):1099-1102.
60. Lowe D.R. Geologic evolution of the Barberton Greenstone Belt and vicinity. Geological Society of America, Special Paper 1999, 329:287-312. Boulder. D.R. Lowe, G.R. Byerly (Eds.).
61. Lowe D.R., Byerly G.R. Stratigraphy of the west-central part of the Barberton Greenstone Belt, South Africa. Geological Society of America, Special Paper 1999, 329:1-36. Boulder. D.R. Lowe, G.R. Byerly (Eds.).
62. Lowe D.R., Byerly G.R. An overview of the geology of the Barberton Greenstone Belt and vicinity: implications for early crustal development. Earth's Oldest Rocks 2007, 15:481-526. Elsevier, Amsterdam. M.J. Van Kranendonk, R.H. Smithies, V.C. Bennett (Eds.).
63. Ludwig K.R. ISOPLOT 3.00. A geochronological toolkit for Microsoft Excel. Berkeley Geochronology Center Spec. Publ. No. 4 2003, 70pp.
64. Maier W.D., Barnes S.J., Campbell I.H., Fiorentini M.L., Peltonen P., Barnes S.J., Smithies R.H. Progressive mixing of meteoritic veneer into the early Earth's deep mantle. Nature 2009, 460(7255):620-623.
65. Malitch K.N., Merkle R.K.W. Ru-Os-Ir-Pt and Pt-Fe alloys from the Evander goldfield, Witwatersrand basin, South Africa: detrital origin inferred from compositional and osmium-isotope data. Can. Mineral. 2004, 42:631-650.
66. McDonough W.F., Ireland T.R. Intraplate origin of komatiites inferred from trace elements in glass inclusions. Nature 1993, 365(6445):432-434.
67. McKenzie D., Bickle M.J. The volume and composition of melt generated by extension of the lithosphere. J. Petrol. 1988, 29(3):625-679.
68. Meisel T., Walker R.J., Irving A.J., Lorand J.-P. Osmium isotopic compositions of mantle xenoliths: a global perspective. Geochim. Cosmochim. Acta 2001, 65(8):1311-1323.
69. Mertzman S.A. K-Ar results from the southern Oregon-northern California Cascade range. Or. Geol. 2000, 62(4):99-122.
70. 2O in the suboceanic upper mantle: implications for mantle metasomatism. Geochim. Cosmochim. Acta 1988, 52(2):555-566.
71. 2O. Earth Planet. Sci. Lett. 1995, 131(3-4):301-320.
72. Moore J.G. Water content of basalt erupted on the ocean floor. Contrib. Mineral. Petrol. 1970, 28(4):272-279.
73. Nesbitt R.W., Sun S.S. Geochemistry of Archaean spinifex-textured peridotites and magnesian and low-magnesian tholeiites. Earth Planet. Sci. Lett. 1976, 31(3):433-453.
74. Nisbet E.G., Cheadle M.J., Arndt N.T., Bickle M.J. Constraining the potential temperature of the Archaean mantle: a review of the evidence from komatiites. Lithos 1993, 30(3-4):291-307.
75. Parman S.W., Grove T.L., Dann J.C., de Wit M.J. A subduction origin for komatiites and cratonic lithospheric mantle. S. Afr. J. Geol. 2004, 107(1-2):107-118.
76. Puchtel I., Humayun M. Platinum group elements in Kostomuksha komatiites and basalts: implications for oceanic crust recycling and core-mantle interaction. Geochim. Cosmochim. Acta 2000, 64(24):4227-4242.
77. Puchtel I.S., Humayun M. Platinum group element fractionation in a komatiitic basalt lava lake. Geochim. Cosmochim. Acta 2001, 17(65):2979-2993.
78. 187Os-enriched 2.8-Ga Kostomuksha komatiites, Baltic Shield. Geochim. Cosmochim. Acta 2005, 69(6):1607-1618.
79. Puchtel I.S., Hofmann A.W., Mezger K., Shchipansky A.A., Kulikov V.S., Kulikova V.V. Petrology of a 2.41Ga remarkably fresh komatiitic basalt lava lake in Lion Hills, central Vetreny Belt, Baltic Shield. Contrib. Mineral. Petrol. 1996, 124:273-290.
80. Puchtel I.S., Haase K.M., Hofmann A.W., Chauvel C., Kulikov V.S., Garbe-Schönberg C.D., Nemchin A.A. Petrology and geochemistry of crustally contaminated komatiitic basalts from the Vetreny Belt, southeastern Baltic Shield: evidence for an early Proterozoic mantle plume beneath rifted Archean continental lithosphere. Geochim. Cosmochim. Acta 1997, 61(6):1205-1222.
81. Puchtel I.S., Hofmann A.W., Mezger K., Jochum K.P., Shchipansky A.A., Samsonov A.V. Oceanic plateau model for continental crustal growth in the Archaean: a case study from the Kostomuksha Greenstone Belt, NW Baltic Shield. Earth Planet. Sci. Lett. 1998, 155(1-2):57-74.
82. Puchtel I.S., Hofmann A.W., Amelin Y.V., Garbe-Schönberg C.-D., Samsonov A.V., Shchipansky A.A. Combined mantle plume-island arc model for the formation of the 2.9 Ga Sumozero-Kenozero greenstone belt, SE Baltic Shield: Isotope and trace element constraints. Geochim. Cosmochim. Acta 1999, 63(21):3579-3595.
83. 187Os-enriched domain in an Archaean mantle plume: Evidence from 2.8Ga komatiites of the Kostomuksha greenstone belt, NW Baltic Shield. Earth Planet. Sci. Lett. 2001, 186(3-4):513-526.
84. Puchtel I.S., Brügmann G.E., Hofmann A.W., Kulikov V.S., Kulikova V.V. Os isotope systematics of komatiitic basalts from the Vetreny belt, Baltic Shield: evidence for a chondritic source of the 2.45Ga plume. Contrib. Mineral. Petrol. 2001, 140(5):588-599.
85. Puchtel I.S., Brandon A.D., Humayun M. Precise Pt-Re-Os isotope systematics of the mantle from 2.7-Ga komatiites. Earth Planet. Sci. Lett. 2004, 224(1-2):157-174.
86. Puchtel I.S., Humayun M., Campbell A., Sproule R., Lesher C.M. Platinum group element geochemistry of komatiites from the Alexo and Pyke Hill areas, Ontario, Canada. Geochim. Cosmochim. Acta 2004, 68(6):1361-1383.
87. Puchtel I.S., Brandon A.D., Humayun M., Walker R.J. Evidence for the early differentiation of the core from Pt-Re-Os isotope systematics of 2.8-Ga komatiites. Earth Planet. Sci. Lett. 2005, 237(1-2):118-134.
88. Puchtel I.S., Humayun M., Walker R.J. Os-Pb-Nd isotope and highly siderophile and lithophile trace element systematics of komatiitic rocks from the Volotsk suite, SE Baltic Shield. Precambrian Res. 2007, 158(1-2):119-137.
89. Puchtel I.S., Walker R.J., James O.B., Kring D.A. Osmium isotope and highly siderophile element systematics of lunar impact melt breccias: implications for the late accretion history of the Moon and Earth. Geochim. Cosmochim. Acta 2008, 72(12):3022-3042.
90. Puchtel I.S., Walker R.J., Anhaeusser C.R., Gruau G. Re-Os isotope systematics and HSE abundances of the 3.5Ga Schapenburg komatiites, South Africa: Hydrous melting or prolonged survival of primordial heterogeneities in the mantle?. Chem. Geol. 2009, 262(3-4):391-405.
91. Puchtel I.S., Walker R.J., Brandon A.D., Nisbet E.G. Pt-Re-Os and Sm-Nd isotope and HSE and REE systematics of the 2.7Ga Belingwe and Abitibi komatiites. Geochim. Cosmochim. Acta 2009, 73(20):6367-6389.
92. Reisberg L., Rouxel O., Ludden J., Staudigel H., Zimmermann C. Re-Os results from ODP Site 801: evidence for extensive Re uptake during alteration of oceanic crust. Chem. Geol. 2008, 248(3-4):256-271.
93. Richter F.M. A major change in the thermal state of the Earth at the Archean-Proterozoic boundary: consequences for the nature and preservation of continental lithosphere. J. Petrol. Spec. Lithosphere Issue 1988, 39-52.
94. Robin-Popieul, C.C.M., Arndt, N.T., Chauvel, C., Byerly, G.R., Sobolev, A.V., Wilson, A.H., (submitted for publication). Barberton komatiites produced by progressive shrivelling of the source. Journal of Petrology.
95. Roeder P.L., Emslie R.F. Olivine-liquid equilibrium. Contrib. Mineral. Petrol. 1970, 29(4):275-282.
96. Shirey S.B., Walker R.J. The Re-Os isotope system in cosmochemistry and high-temperature geochemistry. Annu. Rev. Earth Planet. Sci. 1998, 26:423-500.
97. Smoliar M.I., Walker R.J., Morgan J.W. Re-Os ages of Group IIA, IIIA, IVA, and IVB iron meteorites. Science 1996, 271(5762):1099-1102.
98. Snow J.E., Reisberg L. Os isotopic systematics of the MORB mantle: results from altered abyssal peridotites. Earth Planet. Sci. Lett. 1995, 136(3-4):723-733.
99. Tsuru A., Walker R.J., Kontinen A., Peltonen P., Hanski E. Re-Os isotopic systematics of the 1.95Ga Jormua Ophiolite Complex, northeastern Finland. Chem. Geol. 2000, 164(1-2):123-141.
100. Viljoen M.J., Viljoen R.P. Evidence for the existence of a mobile extrusive peridotitic magma from the Komati formation of the Onverwacht Group. Geol. Soc. S. Afr. Spec. Publ. 1969, 2:87-112.
101. Walker R.J. Highly siderophile elements in the Earth, Moon and Mars: update and implications for planetary accretion and differentiation. Chem. Erde Geochem. 2009, 69(2):101-125.
102. Walker R.J., Shirey S.B., Stecher O. Comparative Re-Os, Sm-Nd and Rb-Sr isotope and trace element systematics for Archean komatiite flows from Munro Township, Abitibi belt, Ontario. Earth Planet. Sci. Lett. 1988, 87(1-2):1-12.
103. Walker R.J., Echeverria L.M., Shirey S.B., Horan M.F. Re-Os isotopic constraints on the origin of volcanic rocks, Gorgona Island, Colombia: Os-isotopic evidence for ancient heterogeneities in the mantle. Contrib. Mineral. Petrol. 1991, 107(2):150-162.
104. Walker R.J., Hanski E., Vuollo J., Liipo J. The Os isotopic composition of Proterozoic upper mantle: evidence for chondritic upper mantle from the Outokumpu ophiolite, Finland. Earth Planet. Sci. Lett. 1996, 141(1-4):161-173.
105. 187Os systematics of chondrites: implications regarding early solar system processes. Geochim. Cosmochim. Acta 2002, 66(23):4187-4201.
106. Walker R.J., Prichard H.M., Ishivatari A., Pimentel M. The osmium isotopic composition of the convecting upper mantle deduced from ophiolite chromites. Geochim. Cosmochim. Acta 2002, 66(2):329-345.
107. 2 and the dominant oxidation state of rhenium in hydrothermal solutions. Chem. Geol. 1999, 158(3-4):245-256.