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Geochronology of unconformity-related uranium deposits in the Athabasca Basin, Saskatchewan, Canada and their integration in the evolution of the basin

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Abstract

The importance of geochronology in the study of mineral deposits in general, and of unconformity-type uranium deposits in particular, resides in the possibility to situate the critical ore-related processes in the context of the evolution of the physical and chemical conditions in the studied area. The present paper gives the results of laser step heating 40Ar/39Ar dating of metamorphic host-rock minerals, pre-ore and syn-ore alteration clay minerals, and laser ablation inductively coupled plasma mass spectrometer (LA-ICP-MS) U/Pb dating of uraninite from a number of basement- and sediment-hosted unconformity-related deposits in the Athabasca Basin, Canada. Post-peak metamorphic cooling during the Trans-Hudson Orogen of rocks from the basement occurred at ca 1,750 Ma and gives a maximum age for the formation of the overlying Athabasca Basin. Pre-ore alteration occurred simultaneously in both basement- and sandstone-hosted mineralizations at ca 1,675 Ma, as indicated by the 40Ar/39Ar dating of pre-ore alteration illite and chlorite. The uranium mineralization age is ca 1,590 Ma, given by LA-ICP-MS U/Pb dating of uraninite and 40Ar/39Ar dating of syn-ore illite, and is the same throughout the basin and in both basement- and sandstone-hosted deposits. The mineralization event, older than previously proposed, as well as several fluid circulation events that subsequently affected all minerals studied probably correspond to far-field, continent-wide tectonic events such as the metamorphic events in Wyoming and the Mazatzal Orogeny (ca 1.6 to 1.5 Ga), the Berthoud Orogeny (ca 1.4 Ga), the emplacement of the McKenzie mafic dyke swarms (ca 1.27 Ga), the Grenville Orogeny (ca 1.15 to 1 Ga), and the assemblage and break-up of Rodinia (ca 1 to 0.85 Ga). The results of the present work underline the importance of basin evolution between ca 1.75 Ga (basin formation) and ca 1.59 Ga (ore deposition) for understanding the conditions necessary for the formation of unconformity-type uranium deposits.

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References

  • Alexandre P, Chalot-Prat F, Saintot A, Wijbrans J, Stephenson R, Wilson M, Kitchka A, Stovba S (2004) 40Ar/39Ar dating of magmatic activity in the Donbas foldbelt and the Scythian platform (Eastern European Craton). Tectonics 23(5):TC5002

    Article  Google Scholar 

  • Alexandre P, Kyser TK (2005) Effects of cationic substitutions and alteration of uraninite, and implications for the dating of uranium deposits. Can Mineral 43:1005–1017

    Article  Google Scholar 

  • Alexandre P, Kyser K, Polito PA, Sopuck V, Thomas D (2005) Alteration mineralogy and stable isotope geochemistry of Paleoproterozoic basement-hosted unconformity-type uranium deposits in the Athabasca Basin, Canada. Econ Geol 100(8):1547–1563

    Article  Google Scholar 

  • Alexandre P, Kyser TK (2006) Geochemistry of uraniferous bitumen in the southwest Athabasca Basin, Saskatchewan, Canada. Econ Geol 101:1605–1612

    Article  Google Scholar 

  • Armstrong RL, Ramaekers P (1985) Sr isotopic study of the Helikian sediment and diabase dikes in the Athabasca Basin, northern Saskatchewan. Can J Earth Sci 22:399–407

    Google Scholar 

  • Baagsgard H, Cumming GL, Worden JM (1984) U-Pb geochronology of minerals from the Midwest uranium deposit, northern Saskatchewan. Can J Earth Sci 21:642–648

    Google Scholar 

  • Bray CJ, Spooner ETC, Longstaffe FJ (1988) Unconformity-related uranium mineralization, McClean Deposits, North Saskatchewan, Canada: hydrogen and oxygen isotope geochemistry: Can Mineral 26:249–268

    Google Scholar 

  • Burwash RA, Baadsgaard H, Morton RD (1962) Precambrian K-Ar dates from the Western Canada sedimentary basin. J Geophys Res 67:1617–1623

    Article  Google Scholar 

  • Carl C, von Pechmann E, Hondorf A, Ruhmann G (1992) Mineralogy and U/Pb, Pb/Pb, and Sm/Nd geochronology of the Key Lake uranium deposit, Athabasca Basin, Saskatchewan, Canada. Can J Earth Sci 29:879–895

    Google Scholar 

  • Chandler FW (1978) Geology of part of the Wollaston Lake fold belt, northern Wollaston Lake, Saskatchewan. Can Geol Surv Bull 277:57

    Google Scholar 

  • Chipley D, Polito P, Kyser K (in press) Measurement of U–Pb ages of uraninite and davidite by laser ablation-HR-ICP-MS. Amer Miner (in press)

  • Condie KC (2001) Rodinia and continental growth. In: Divi RS, Yoshida M (eds) Tectonics and mineralization in the Arabian Shield and its extensions. Gondwana Res 4(2):154–155

  • Cumming GL, Kristic D (1992) The age of unconformity uranium mineralization in the Athabasca Basin, northern Saskatchewan. Can J Earth Sci 29:1623–1639

    Article  Google Scholar 

  • Dalrymple GB, Alexander EC, Lanphere MA, Kraker GP (1981) Irradiation of samples for 40Ar/39Ar dating using the Geological Survey TRIGA reactor. US Geological Survey Professional Paper 1176

  • Duebendorfer EM, Chamberlain KR, Heizler M (2006) Filling the North American Proterozoic tectonic gap: 1.6–1.59 Ga deformation and orogenesis in southern Wyoming, USA. J Geology 114:19–42

    Article  Google Scholar 

  • Fayek M, Kyser K (1997) Characterization of multiple fluid-flow events and rare-earth-element mobility associated with the formation of unconformity-type uranium deposits in the Athabasca Basin, Saskatchewan. Can Mineral 35:627–658

    Google Scholar 

  • Fayek M, Kyser K (2000) Low temperature oxygen isotopic fractionation in the uraninite-UO3-CO2-H2O system. Geochim Cosmochim Acta 64:2185–2197

    Article  Google Scholar 

  • Fayek M, Kyser TK, Riciputi L (2002) U and Pb isotope analysis of uranium minerals by ion microprobe and the geochronology of the McArthur River and Sue Zone uranium deposits, Saskatchewan, Canada. Can Mineral 40:1553–1569

    Article  Google Scholar 

  • Finch RJ, Murakami T (1999) Systematics and paragenesis of uranium minerals. In: Burns PC, Finch RJ (eds), Uranium: mineralogy, geochemistry, and the environment. Mineralogical Society of America, Reviews in Mineralogy 38. Washington, USA

  • Hiatt E, Fayek M, Kyser K, Polito P (2001) The importance of early quartz cementation events in the evolution of aquifer properties of ancient sandstones; isotopic evidence from ion probe analysis of sandstones from the McArthur, Athabasca, and Thelon basins. Geological Society of America, 2001 annual meeting, Abstracts with Programs 33:74

  • Hoeve J, Sibbald TII (1978) Rabbit Lake uranium deposit. In: Dunn CE (ed) Uranium in Saskatchewan. Saskatchewan Geological Society Special Publication 3:475–484

  • Hoffman PF (1990) Behind the Grenville Orogen. Abstracts with Programs, Geological Society of America 22(2):24

    Google Scholar 

  • Knipping HD (1974) The concepts of a supergene versus hypogene emplacement of uranium at Rabbit Lake, Saskatchewan, Canada. In: Formation of uranium ore deposits: International Atomic Energy Agency, Vienna, pp 531–548

  • Kotzer T, Kyser TK (1995) Petrogenesis of the Proterozoic Athabasca Basin, northern Saskatchewan, and its relation to diagenesis, hydrothermal uranium mineralization and paleohydrology. Chem Geol 120:45–89

    Article  Google Scholar 

  • Kyser K, Chipley D, Bukata A, Polito P, Fitzpatrick A, Alexandre P (2003) Application of laser ablation and high resolution ICPMS to the analysis of metal contents in tree rings, ages of uranium-rich minerals and Se content in sulphide ores. Can J Anal Sci Spectrosc 48(5):258–268

    Google Scholar 

  • Kyser K, Hiatt E, Renac C, Durocher K, Holk G, Deckart K (2000) Diagenetic fluids in paleo- and meso-proterozoic sedimentary basins and their implications for long protracted fluid histories. In: Kyser TK (ed) Fluids and basin evolution. Mineralogical Association of Canada Short Course 28:225–262

  • LeCheminant AN, Heaman LM (1989) Mackenzie igneous events, Canada: middle Proterozoic hotspot magmatism associated with ocean opening. Earth Planet Sci Lett 96:38–48

    Article  Google Scholar 

  • Lee JKW, Onstott TC, Hanes JA (1990) An 40Ar/39Ar investigation of the contact effects of a dyke intrusion, Kapuskasing structural zone, Ontario. A comparison of laser microprobe and furnace extraction techniques. Contrib Mineral Petrol 105:87–105

    Article  Google Scholar 

  • Lewry JF, Sibbald TII (1977) Variation in lithology and tectonometamorphic relationships in the Precambrian basement of northern Saskatchewan. Can J Earth Sci 14:1453–1477

    Google Scholar 

  • Lewry JF, Sibbald TII (1980) Thermotectonic evolution of the Churchill province in Northern Saskatchewan. Tectonophysics 68:49–82

    Article  Google Scholar 

  • McDougall M, Harrison TM (1999) Geochronology and thermochronology by the 39Ar/40Ar method. Oxford University Press, Oxford

    Google Scholar 

  • McGill BD, Marlat JL, Matthews RB, Sopuck VJ, Homeniuk LA, Hubregtse JJ (1993) The P2 North uranium deposit, Saskatchewan, Canada. Explor Min Geol 2(4):321–331

    Google Scholar 

  • Mayers JS, Shaw RD, Tyler IM (1996) Tectonic evolution of Proterozoic Australia. Tectonics 15(6):1431–1446

    Article  Google Scholar 

  • Medaris LG, SInger BS, Dott RH, Naymark A, Johnson CM, Schott RC (2003) Late Paleoproterozoic climate, tectonics, and metamorphism in the Southern Lake Superior Region and Proto-North America; evidence from Baraboo interval quartzites. J Geol 111:243–257

    Article  Google Scholar 

  • Money RJC (1968) The Wollaston Lake fold–belt system, Saskatchewan–Manitoba. Can J Earth Sci 5:1489–1504

    Google Scholar 

  • Mosher S (1996) Grenville orogenesis along the southern margin of Laurentia. Abstr Programs Geol Soc Am 28(1):55

    Google Scholar 

  • Nyman MW, Karlstrom KE, Kirby E, Graubard CM (1994) Mesoproterozoic contractional orogeny in North America: evidence from ca. 1.4 Ga plutons. Geology 22:901–904

    Article  Google Scholar 

  • Onstott TC, Peacock MW (1987) Argon retentivity of hornblendes: a field experiment in a slowly cooled metamorphic terrane. Geochim Cosmochim Acta 51:2891–2903

    Article  Google Scholar 

  • Pagel M, Poty B, Sheppard SMF (1980) Contribution to some Saskatchewan uranium deposits mainly from fluid inclusions and isotopic data. In: Ferguson S and Goleby A (eds), Uranium in the Pine Creek Geosyncline: Vienna, International Atomic Energy Agency, p 639–654

  • Philippe S, Lancelot JR, Clauer N, Paquet A (1993) Formation and evolution of the Cigar Lake uranium deposit based on U–Pb and K–Ar isotope systematics. Can J Earth Sci 30:720–730

    Article  Google Scholar 

  • Quirt D (1997) Chloritization below the Dawn Lake uranium deposit (11A zone), northern Saskatchewan. Geological Association of Canada—Mineralogical Association of Canada Conference Abstracts 22:A-122

    Google Scholar 

  • Ramaekers P (1990) Geology of the Athabasca Group (Helikian) in Northern Saskatchewan. Saskatchewan Energy and Mines, Saskatchewan Geological Survey, Report 195:48

    Google Scholar 

  • Ramaekers P, Dunn CE (1977) Geology and geochemistry of the eastern margin of the Athabasca Basin. In: Dunn CE (ed) Uranium in Saskatchewan. Saskatchewan Geological Society Special Publication 3:297–322

  • Robertson DS, Tilsey JE, Hogg GM (1978) The time-bound character of uranium deposits. Econ Geol 73:1490–1499

    Google Scholar 

  • Roddick JC (1983) High precision intercalibration of 40Ar/39Ar standards. Geochim Cosmochim Acta 47(5):887–898

    Article  Google Scholar 

  • Romano D, Holm DK, Foland KA (2000) Determining the extent and nature of Mazatzal-related overprinting of the Penokean Orogenic belt in the southern Lake Superior region, north-central USA. Precambrian Res 104:25–46

    Article  Google Scholar 

  • Sibbald TII (1978) Uranium metalogenic studies: Rabbit Lake geology. In: Summary of investigations 1978, Saskatchewan Geological Survey, Saskatchewan mineral resources. Miscellaneous report 78–10:56–60

    Google Scholar 

  • Sibbald TII, Quirt D (1987) Uranium deposits of the Athabasca Basin. Geological Association of Canada, Annual Meeting, Saskatoon, 1987. Field trip guidebook. Trip 9: Saskatchewan Research Council Publication R-855-1-G-87

  • Sims PK, Stein HJ (2001) Tectonic history of the Proterozoic Colorado Province, Southern Rocky Mountains. Abstr Programs Geol Soc Am 33(5):4

    Google Scholar 

  • Steiger RH, Jåger E (1977) Subcommission on geochronology: convention on the use of decay constants in geo- and cosmochronology. Earth Planet Sci Lett 36:359–362

    Article  Google Scholar 

  • Wallis RH (1971) The geology of the Hidden Bay area, Saskatchewan. Saskatchewan Geological Survey Report 137, 75 pp

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Acknowledgements

This work benefited from financial contribution by the Natural Sciences and Engineering Research Council of Canada (NSERC) via Discovery, Major Facility Access and Collaborative Research and Development grants. Cameco Corp. is acknowledged for its financial support. Vladimir Sopuck, Ken Wasyliuk, and Dan Jiricka are thanked for their field support and constructive discussions. Two anonymous reviewers contributed to the overall quality of the paper by thorough, detailed, and constructive comments.

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Authors and Affiliations

  1. Department of Geological Sciences and Geological Engineering, Queen’s University, Kingston, ON, Canada, K7L 3N6

    Paul Alexandre, Kurt Kyser & Paul Polito

  2. Cameco Corporation, 2121, 11th Street West, Saskatoon, SK, Canada, S7M 1J3

    Dave Thomas & Jim Marlat

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  1. Paul Alexandre
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  2. Kurt Kyser
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  3. Dave Thomas
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  4. Paul Polito
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Correspondence to Paul Alexandre.

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Editorial handling: M. Cuney

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Complete analytical data for 40Ar/39Ar analyses of various metamorphic and alteration minerals from the studied basement-hosted and sandstone-hosted deposits and prospects. (XLS 214 kb)

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Alexandre, P., Kyser, K., Thomas, D. et al. Geochronology of unconformity-related uranium deposits in the Athabasca Basin, Saskatchewan, Canada and their integration in the evolution of the basin. Miner Deposita 44, 41–59 (2009). https://doi.org/10.1007/s00126-007-0153-3

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