Abstract
The Jurassic Victor kimberlite (Attawapiskat Field) was emplaced into an area of the central Superior Craton that was affected by a lithosphere-scale thermal event at ~1.1 Ga. Victor diamonds formed ca. 400 million years after this event, in a lithospheric mantle characterized by an unusually cool model geotherm (37–38 mW/m2; Hasterok and Chapman 2011). The bulk of Victor diamonds derives from a thin (<10 km thick) layer that is located at about 180 km depth and represents lherzolitic substrates (for 85% of diamonds). Geothermobarometric calculations (average pressure and temperature at the 1 sigma level are 57 ± 2 kbar and 1129 ± 16 °C) coupled with typical fluid metasomatism-associated trace element patterns for garnet inclusions indicate diamond precipitation under sub-solidus (lherzolite + H2O) conditions. This conclusion links the presence of a diamond-rich lherzolitic layer in the lithospheric mantle, just above the depth where ascending melts would freeze, to the unusually low paleogeotherm beneath Attawapiskat, because along an average cratonic geotherm (40 mW/m2) lherzolite in the presence of hydrous fluid would melt at depths >140 km.
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References
Armstrong KA, Nowicki TE, Read GH (2004) Kimberlite AT-56: a mantle sample from the north central Superior craton, Canada. Lithos 77(1–4):695–704
Aulbach S, Stachel T, Viljoen KS, Brey GP, Harris JW (2002) Eclogitic and websteritic diamond sources beneath the Limpopo Belt - is slab-melting the link? Contrib Mineral Petr 143(1):56–70
Aulbach S, Creaser RA, Stachel T, Heaman LM, Chinn IL, Kong J (2018) Diamond ages from Victor (Superior Craton): Intra-mantle cycling of volatiles (C, N, S) during supercontinent reorganisation. Earth Planet Sc Lett 490:77–87
Banas A, Stachel T, Muehlenbachs K, McCandless TE (2007) Diamonds from the Buffalo Head Hills, Alberta: Formation in a non-conventional setting. Lithos 93(1–2):199–213
Boyd FR, Gurney JJ (1986) Diamonds and the African lithosphere. Science 232(4749):472–477
Brey GP (1989) Geothermobarometry for lherzolites: experiments from 10 to 60 kb, new thermobarometers and application to natural rocks. Habilitation Thesis, TU Darmstadt, Germany, 227pp
Brey GP, Köhler T (1990) Geothermobarometry in four-phase lherzolites II. New thermobarometers, and practical assessment of existing thermobarometers. J Petrol 31:1353–1378
Bulanova GP, Griffin WL, Ryan CG, Shestakova OY, Barnes SJ (1996) Trace elements in sulfide inclusions from Yakutian diamonds. Contrib Mineral Petr 124(2):111–125
Creighton S, Stachel T, Matveev S, Höfer H, McCammon C, Luth RW (2009) Oxidation of the Kaapvaal lithospheric mantle driven by metasomatism. Contrib Mineral Petr 157(4):491–504
Davies RM, Griffin WL, O'Reilly SY, McCandless TE (2004) Inclusions in diamonds from the K14 and K10 kimberlites, Buffalo Hills, Alberta, Canada: diamond growth in a plume? Lithos 77(1–4):99–111
Day HW (2012) A revised diamond-graphite transition curve. Am Mineral 97(1):52–62
Frey FA, Green DH (1974) The mineralogy, geochemistry and origin of lherzolite inclusions in Victorian basanites. Geochim Cosmochim Ac 38:1023–1059
Girnis AV, Bulatov VK, Brey GP, Gerdes A, Höfer HE (2013) Trace element partitioning between mantle minerals and silico-carbonate melts at 6–12 GPa and applications to mantle metasomatism and kimberlite genesis. Lithos 160–161:183–200
Griffin WL, Ryan CG (1995) Trace-elements in Indicator minerals - area selection and target evaluation in diamond exploration. J Geochem Explor 53(1–3):311–337
Grütter HS (2009) Pyroxene xenocryst geotherms: techniques and application. Lithos 112(Suppl 2):1167–1178
Grütter HS, Gurney JJ, Menzies AH, Winter F (2004) An updated classification scheme for mantle-derived garnet, for use by diamond explorers. Lithos 77(1–4):841–857
Gurney JJ (1984) A correlation between garnets and diamonds in kimberlites. In: Glover JE, Harris PG (eds) Kimberlite occurrence and origin: a basis for conceptual models in exploration, vol 8. Dept Geol UWA, Univ Ext UWA, Perth, pp 143–166
Harlan SS, Heaman L, LeCheminant AN, Premo WR (2003) Gunbarrel mafic magmatic event: A key 780 Ma time marker for Rodinia plate reconstructions. Geology 31(12):1053–1056
Harris JW, Duncan DJ, Zhang F, Mia Q, Zhu Y (1994) The physical characteristics and syngenetic inclusion geochemistry of diamonds from Pipe 50, Liaoning Province, People's Republic of China. In: Meyer HOA, Leonardos OH (eds) Proceedings of the 5th International Kimberlite Conference, Araxa, Brazil, 1991, vol 2. Diamonds: Characterization, genesis and exploration. Companhia de Pesquisa de Recursos Minerais Spec Publ Jan/94, vol 1/B. Brasilia, pp 106–115
Hasterok D, Chapman DS (2011) Heat production and geotherms for the continental lithosphere. Earth Planet Sc Lett 307(1–2):59–70
Heaman LM, Kjarsgaard BA (2000) Timing of eastern North American kimberlite magmatism: continental extension of the Great Meteor hotspot track? Earth Planet Sc Lett 178(3–4):253–268
Heaman LM, LeCheminant AN, Rainbird RH (1992) Nature and timing of Franklin igneous events, Canada: implications for a Late Proterozoic mantle plume and the break-up of Laurentia. Earth Planet Sc Lett 109(1):117–131
Howarth GH, Taylor LA (2016) Multi-stage kimberlite evolution tracked in zoned olivine from the Benfontein sill, South Africa. Lithos 262:384–397
Janse AJA (1994) Is Clifford's rule still valid? Affirmative examples from around the world. In: Meyer HOA, Leonardos OH (eds) Proceedings of the 5th International Kimberlite Conference, Araxa, Brazil, 1991, vol 2. Diamonds: Characterization, genesis and exploration. Companhia de Pesquisa de Recursos Minerais Spec Publ Jan/94, vol 1/B. Brasilia, pp 215–235
Januszczak N, Seller MH, Kurszlaukis S, Murphy C, Delgaty J, Tappe S, Ali K, Zhu J, Ellemers P (2013) A multidisciplinary approach to the Attawapiskat Kimberlite Field, Canada: Accelerating the discovery-to-production pipeline. In: Pearson DG, Grütter HS, Harris JW, Kjarsgaard BA, O’Brien H, Rao NVC, Sparks S (eds) Proceedings of 10th International Kimberlite Conference, vol 2. Springer India, New Delhi, pp 157–171
Jaques AL, Hall AE, Sheraton JW, Smith CB, Sun S-S, Drew RM, Foudoulis C, Ellingsen K (1989) Composition of crystalline inclusions and C-isotopic composition of Argyle and Ellendale diamonds. In: Ross J et al. (eds) Kimberlites and related rocks, GSA Spec Publ 14, vol 2. Blackwell, Carlton, pp 966–989
Kjarsgaard BA (2007) Kimberlite diamond deposits. In: Goodfellow WD (ed) Mineral deposits of Canada: a synthesis of major deposit-types, district Metallogeny, the evolution of geological provinces, and exploration methods. Mineral deposits division, Geol Assoc Canada, Ottawa, Spec Publ no 5, pp 245–272
Kong JM, Boucher DR, Scott Smith BH (1999) Exploration and geology of the Attawapiskat Kimberlites, James Bay Lowland, Northern Ontario, Canada. In: Gurney JJ, Gurney JL, Pascoe MD, Richardson SH (eds) The JB Dawson Volume, Proceedings of the VIIth International Kimberlite Conference, vol 1. Red Roof Design, Cape Town, pp 452–467
Krebs MY, Pearson DG, Stachel T, Woodland S, Chinn I, Kong J (2017) Trace elements in gem-quality diamonds from De Beers’ Victor Mine, Ontario, Canada. 11th International Kimberlite Conference Extended Abstract No. 11IKC-4577
Leahy K, Taylor WR (1997) The influence of the Glennie domain deep structure on the diamonds in Saskatchewan kimberlites. Russ Geol Geophys 38(2):481–491
Li ZX, Bogdanova SV, Collins AS, Davidson A, De Waele B, Ernst RE, Fitzsimons ICW, Fuck RA, Gladkochub DP, Jacobs J, Karlstrom KE, Lu S, Natapov LM, Pease V, Pisarevsky SA, Thrane K, Vernikovsky V (2008) Assembly, configuration, and break-up history of Rodinia: a synthesis. Precambrian Res 160(1):179–210
McDonough WF, Sun S-S (1995) The composition of the Earth. Chem Geol 120:223–253
Menzies MA, Rogers N, Tindle A, Hawkesworth CJ (1987) Metasomatic and enrichment processes in lithospheric peridotites, an effect of asthenosphere-lithosphere interaction. In: Menzies MA, Hawkesworth CJ (eds) Mantle Metasomatism. Academic Press, London, pp 313–364
Nimis P, Grütter H (2010) Internally consistent geothermometers for garnet peridotites and pyroxenites. Contrib Mineral Petr 159(3):411–427
Nimis P, Taylor WR (2000) Single clinopyroxene thermobarometry for garnet peridotites. Part I. Calibration and testing of a Cr-in-Cpx barometer and an enstatite-in-Cpx thermometer. Contrib Mineral Petr 139(5):541–554
Ojakangas RW, Morey GB, Green JC (2001) The Mesoproterozoic Midcontinent Rift System, Lake Superior Region, USA. Sediment Geol 141–142(Suppl C): 421–442
Pearson DG, Canil D, Shirey SB (2004) Mantle samples included in volcanic rocks: xenoliths and diamonds. In: Carlson RW (ed) Treatise on geochemistry, vol 2: The Mantle and Core. Elsevier-Pergamon, Oxford, pp 171–275
Sage RP (2000) Kimberlites of the Attawapiskat area, James Bay lowlands, northern Ontario. Ontario Geol Surv, Open File Report 6019, 341 pp
Shimizu N, Richardson SH (1987) Trace element abundance patterns of garnet inclusions in peridotite-suite diamonds. Geochim Cosmochim Ac 51(3):755–758
Shimizu N, Sobolev NV, Yefimova ES (1997) Chemical heterogeneities of inclusion garnets and juvenile character of peridotitic diamonds from Siberia. Russ Geol Geophys 38(2):356–372
Shirey SB, Harris JW, Richardson SH, Fouch M, James DE, Cartigny P, Deines P, Viljoen F (2003) Regional patterns in the paragenesis and age of inclusions in diamond, diamond composition, and the lithospheric seismic structure of southern Africa. Lithos 71(2–4):243–258
Smit KV, Shirey SB, Richardson SH, le Roex AP, Gurney JJ (2010) Re-Os isotopic composition of peridotitic sulphide inclusions in diamonds from Ellendale, Australia: age constraints on Kimberley cratonic lithosphere. Geochim Cosmochim Ac 74(11):3292–3306
Smit KV, Pearson DG, Stachel T, Seller M (2014a) Peridotites from Attawapiskat, Canada: Mesoproterozoic reworking of Palaeoarchaean lithospheric mantle beneath the Northern Superior Superterrane. J Petrol 55(9):1829–1863
Smit KV, Stachel T, Stern RA (2014b) Diamonds in the Attawapiskat area of the Superior craton (Canada): evidence for a major diamond-forming event younger than 1.1 Ga. Contrib Mineral Petr 167(1):1–16
Sobolev NV (1977) Deep-seated inclusions in kimberlites and the problem of the composition of the upper mantle. (Translated from the Russian edition, 1974). AGU, Washington, 279 pp
Sobolev NV, Zyuzin NI, Kuznetsova IK (1966) A continuous range in the series of pyrope-grossular garnets in grospydites [in Russian]. Dokl Acad Sci USSR 167:902–905
Stachel T, Harris JW (1997) Diamond precipitation and mantle metasomatism - evidence from the trace element chemistry of silicate inclusions in diamonds from Akwatia, Ghana. Contrib Mineral Petr 129(2–3):143–154
Stachel T, Harris JW (2008) The origin of cratonic diamonds - constraints from mineral inclusions. Ore Geol Rev 34(1–2):5–32
Stachel T, Luth RW (2015) Diamond formation - where, when and how? Lithos 220–223:200–220
Stachel T, Viljoen KS, Brey G, Harris JW (1998) Metasomatic processes in lherzolitic and harzburgitic domains of diamondiferous lithospheric mantle: REE in garnets from xenoliths and inclusions in diamonds. Earth Planet Sc Lett 159(1–2):1–12
Stachel T, Aulbach S, Brey GP, Harris JW, Leost I, Tappert R, Viljoen KS (2004) The trace element composition of silicate inclusions in diamonds: a review. Lithos 77(1–4):1–19
Van Schmus WR, Hinze WJ (1985) The Midcontinent Rift System. Annu Rev Earth Planet Sci 13(1):345–383
Vitorello I, Pollack HN (1980) On the variation of continental heat flow with age and the thermal evolution of continents. J Geophys Res 85(B2):983–995
Wyllie PJ, Ryabchikov ID (2000) Volatile components, magmas, and critical fluids in upwelling mantle. J Petrol 41(7):1195–1206
Yuan H, Romanowicz B (2010) Lithospheric layering in the North American craton. Nature 466(7310):1063–1068
Acknowledgements
We are grateful to Susan Van Patter for hel** I.C. with the collection of inclusion-bearing Victor diamonds. Gerhard Brey, Herman Grütter, and Michael Seller are thanked for many helpful discussions. Bruce Kjarsgaard and two anonymous reviewers are thanked for their insightful comments and edits. T.S. acknowledges funding through a Natural Sciences and Engineering Research Council of Canada Collaborative Research and Development Grant co-sponsored by De Beers Canada Inc., a Natural Sciences and Engineering Research Council of Canada Discovery Grant, and the Canada Research Chairs programme. De Beers Canada Inc. is thanked for permission to publish.
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Stachel, T., Banas, A., Aulbach, S. et al. The Victor Mine (Superior Craton, Canada): Neoproterozoic lherzolitic diamonds from a thermally-modified cratonic root. Miner Petrol 112 (Suppl 1), 325–336 (2018). https://doi.org/10.1007/s00710-018-0574-y
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DOI: https://doi.org/10.1007/s00710-018-0574-y