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Tritium Content of Clay Minerals

Published online by Cambridge University Press:  01 January 2024

Thomas M. Marston ,
W. T. Parry ,
John R. Bowman  and
D. Kip Solomon
Thomas M. Marston*
Affiliation:
Department of Geology and Geophysics, 115 S. 1460 E., Rm. 383, University of Utah, Salt Lake City, Utah 84112, USA
W. T. Parry
Affiliation:
Department of Geology and Geophysics, 115 S. 1460 E., Rm. 383, University of Utah, Salt Lake City, Utah 84112, USA
John R. Bowman
Affiliation:
Department of Geology and Geophysics, 115 S. 1460 E., Rm. 383, University of Utah, Salt Lake City, Utah 84112, USA
D. Kip Solomon
Affiliation:
Department of Geology and Geophysics, 115 S. 1460 E., Rm. 383, University of Utah, Salt Lake City, Utah 84112, USA
*
*E-mail address of corresponding author: [email protected]
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Abstract

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The presence, percentage, origins, and rate of formation of clay minerals have been important components in studies involving the geochemical and structural composition of waste-rock piles. The objective of the present study was to investigate the use of tritium as an indicator of the origin of clay minerals within such piles. Tritium values in pore water, interlayer water, and structural hydroxyl sites of clay minerals were examined to evaluate the origins of clay minerals within waste-rock piles located near Questa, New Mexico. Five clay minerals were identified: kaolinite, chlorite, illite, smectite, and mixedlayer illite-smectite, along with the hydrous sulfate minerals gypsum and jarosite. Analysis of waters derived from clay minerals was achieved by thermal reaction of dry-sieved bulk material obtained from the Questa site. In all Questa samples, the low-temperature water derived from pore-water and interlayer sites, as well as the intermediate-temperature water derived from interlayer cation sites occupied by hydronium and structural hydroxyl ions, show tritium values at or near modern levels for precipitation. Pore water and interlayer water ranged from 5.31 to 12.19 tritium units (TU) and interlayer hydronium and structurally derived water ranged from 3.92 to 7.93 TU. Tritium levels for local precipitation ranged from ~4 to 8 TU. One tritium unit (TU) represents one molecule of 3H1HO in 1018 molecules of 1H1HO. The elevated levels of tritium in structural sites can be accounted for by thermal incorporation of significant amounts of hydronium ions in interlayer cation sites for illite and mixed-layer clays, both common at the Questa site. In low-pH environments, such as those found within Questa waste-rock piles (typically pH ~3), the hydronium ion is an abundant species in the rock-pile pore-water system.

Keywords

Formation AgeHydroniumInterlayer WaterIsotopicTritiumSlope StabilityStructural Hydroxyl
Type
Article
Information
Clays and Clay Minerals , Volume 60 , Issue 2 , April 2012 , pp. 186 - 199
Copyright
Copyright © Clay Minerals Society 2012

References

Araujo, J. Silva, N. Acchar, W. and Gomes, U., 2004 Thermal decomposition of illite Materials Research 7 359–361.CrossRefGoogle Scholar
Ayakwah, G.F., 2009 Effect of weathering and alteration on point load and slake durability indices and the characterization of the debris flow at the Questa Mine, Taos County, New Mexico New Mexico Institute of Mining and Technology Masters Thesis 216.Google Scholar
Begemann, F. and Libby, W.F., 1957 Continental water balance, ground water inventory and storage times, surface ocean mixing rates and world-wide water circulation patterns from cosmic-ray and bomb tritium Geochimica et Cosmochimica Acta 12 277–296.CrossRefGoogle Scholar
Clarke, W.B. Jenkins, W.J. and Top, Z., 1976 Determination of tritium by mass spectrometric measurements of 3He International Journal of Applied Radiation and Isotopes 27 515–522.CrossRefGoogle Scholar
Cline, J.S. and Bodnar, R.J., 1994 Direct evolution of brine from a crystallizing silicic melt at Questa, New Mexico Molybdenum deposit Economic Geology 89 1780–1802.CrossRefGoogle Scholar
Donahue, K. Dunbar, N. and McLemore, V., 2007 Origins of clay minerals in the Molycorp Mine, Goathill North Rock Pile, Questa, NM Denver, Colorado, USA SME Annual Meeting February 2007.Google Scholar
Donahue, K.M. Dunbar, N.W. and McLemore, V.T., 2009 Clay mineralogy of the Goathill North rock pile, Questa Mine, Taos County, NM: Origins and indications of in-situ weathering Denver, Colorado, USA SME Annual Meeting February 2009.Google Scholar
Dunbar, N. Heizler, L. and Sweeney, D., 2008.Mineralogical Characterization of Questa Rock-Pile Samples by Petrographic and Electron Microprobe Analysis DRA-4 QRPWASP Unpublished databaseGoogle Scholar
Frost, R. Wills, R. Kloprogge, J. and Martens, W., 2006 Thermal decomposition of hydronium jarosite Journal of Thermal Analysis and Calorimetry 83 213–218.CrossRefGoogle Scholar
Graf, G.J., 2008 Mineralogical and geochemical changes associated with sulfide and silicate weathering in natural alteration scars Taos County, New Mexico. Masters thesis, New Mexico Institute of Mining and Technology.Google Scholar
Hyeong, K. and Capuano, M., 2004 Hydrogen isotope fractionation factor for mixed-layer illite/smectite at 60°C to 150°C: New data from the northeast Texas Gulf Coast Geochimica et Cosmochimica Acta 68 1529–1543.CrossRefGoogle Scholar
IAEA/WMO 2006() Global Network of Isotopes in Precipitation. The GNIP Database. Accessible at: .Google Scholar
Klemm, L.M. Pettke, T. and Heinrich, C.A., 2008 Fluid and source magma evolution of the Questa porphyry Mo deposit, New Mexico, USA Mineralium Deposita 43 533–552.CrossRefGoogle Scholar
Loucks, R.R., 1991 The bound interlayer H2O content of potassic white micas: muscovite-hydromuscovite-hydropyrophyllite solutions American Mineralogist 76 1563–1579.Google Scholar
McLemore, V.T., 2009 Geologic Setting and Mining History of the Questa mine Taos County, New Mexico. New Mexico Bureau of Geology and Mineral Resources Open-File report OF-515 29.Google Scholar
McLemore, V.T. Ayakwah, G. Boakye, K. Campbell, A. Dickins, A. Donahue, K. Dunbar, N. Graf, G. Butierrez, L. Heizler, L. Lynn, R. Leuth, V. Osantowski, E. Phillips, E. Shannon, H. Tachie-Menson, S. van Dam, R. Viterbo, V.C. Walsh, P. Wilson, G.W. and van Zyl, D., 2009 Characterization of Goathill North rock pile, New Mexico New Mexico Bureau of Geology and Mineral Resources Open-File Report OF-523 203.CrossRefGoogle Scholar
McLemore, V.T. Sweeney, D. and Donahue, K., 2009 Lithologic atlas for the Questa mine New Mexico Bureau of Geology and Mineral Resources Open-File report OF-516 Taos County, New Mexico. 73.CrossRefGoogle Scholar
Moum, J. and Rosenqvist, I.T.h., 1958 Hydrogen (protium)-deuterium exchange in clays Geochimica et Cosmochimica Acta 14 250–252.CrossRefGoogle Scholar
Naus, C.A. McClesky, R.B. Nordstrom, D.K. Donohoe, L.C. Hunt, A.G. Paillet, F.L. Morin, R.H. and Verplanck, P.L., 2005 Questa Baseline and Pre-Mining Ground-Water-Quality Investigation 5 Well Installation, Water-Level Data, and Surface- and Ground-Water Geochemistry in the Straight Creek Drainage Basin, Red River Valley, New Mexico, 2001-03. U.S. Geological Survey Scientific Investigations Report 2005–5088 228.CrossRefGoogle Scholar
Naus, C.A. McAda, D.P. and Myers, N.C., 2006 Questa Baseline and Pre-Mining Ground-Water Quality Investigation 21 Hydrology and Water Balance of the Red River Basin, New Mexico, 1930–2004. U.S. Geological Survey Scientific Investigations Report 2006-5040 37.CrossRefGoogle Scholar
Newman, A.C.D., 1987 Chemistry of Clays and Clay Minerals Essex, UK Longmans.Google Scholar
Parry, W.T. Ballantyne, J.M. and Bryant, N.L., 1980 Hydrothermal alteration enthalpy and heat flow in the Roosevelt Hot Springs thermal area, Utah Journal of Geophysical Research 85 B5 2559–2566.CrossRefGoogle Scholar
QRPWASP (Database for Questa Rock Pile Weathering and Stability Project) 2008() Unpublished database. Available by request from the Department of Geology, New Mexico Institute of Mining and Technology .Google Scholar
Reiter, M., 2009 Fluid flow estimates in molybdenum mine rock piles using borehole temperature logs Environmental and Engineering Geoscience 15 175–195.CrossRefGoogle Scholar
Savin, S. and Epstein, S., 1970 The oxygen and hydrogen isotope geochemistry of clay minerals Geochimica et Cosmochimica Acta 34 25–42.CrossRefGoogle Scholar
Schilling, J., 1990 History of the Questa Molybdenum (Moly) Mines, Taos County, New Mexico New Mexico Geological Society Guidebook 41 381–386.Google Scholar
Solomon, D.K., Cook, P. and Herczeg, L., 2000 3H and 3He Environmental Tracers in Subsurface Hydrology Dordrecht, The Netherlands Kluwer Academic Publishers 397–424.CrossRefGoogle Scholar