Argon diffusion in plagioclase and implications for thermochronometry: A case study from the Bushveld Complex, South Africa

Geochimica et Cosmochimica Acta

Volumn 73, Issue 21, 2009, Pages 6600-6612

  Cassata, William S ^a,b   Renne, Paul R ^a,b   Shuster, David L ^b  

^a UNIVERSITY OF CALIFORNIA   (United States)

^b BERKELEY GEOCHRONOLOGY CENTER   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

ACTIVATION ENERGY; ANALYTICAL METHOD; ARGON; CRUST; DIFFUSION; EXPERIMENTAL STUDY; MAGMATISM; PLAGIOCLASE; TECTONIC SETTING; TEMPERATURE; THERMOCHRONOLOGY;

AFRICA; BUSHVELD COMPLEX; SOUTH AFRICA; SOUTHERN AFRICA; SUB-SAHARAN AFRICA;

EID: 70349167193     PISSN: 00167037     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.gca.2009.07.017     Document Type: Article

References (37)

1. 39Ar dating experiments. Geochim. Cosmochim. Acta 45 (1981) 795-811
2. 39Ar study of plagioclases from the Rogaland anorthosite complex (SW Norway): an attempt to understand argon ages in plutonic plagioclase. Chem. Geol. 176 (2001) 105-135
3. Buick I.S., Maas R., and Gibson R. Precise U-Pb titanite age constraints on the emplacement of the Bushveld Complex, South Africa. J. Geol. Soc. Lond. 158 (2001) 3-6
4. Campbell I.H., Griffiths R.W., and Hill R.I. Melting in an Archean mantle plume: heads it's basalt, tails it's komatiite. Nature 339 (1989) 697-699
5. Cawthorn R.G., and Walraven F. Emplacement and crystallization time for the Bushveld Complex. J. Petrol. 39 (1998) 1669-1687
6. Cherniak D.J. Diffusion of lead in plagioclase and K-feldspar: an investigation using Rutherford Backscattering and Resonant Nuclear Reaction Analysis. Contrib. Mineral. Petrol. 120 (1995) 358-371
7. Crank J. The Mathematics of Diffusion. secod ed. (1975), Clarendon Press, Oxford
8. Dahl P.S. The crystal-chemical basis for Ar retention in micas: inferences from interlayer partitioning and implications for geochronology. Contrib. Mineral. Petrol. 123 (1996) 22-39
9. Dodson M.H. Closure temperature in cooling geochronological and petrological systems. Contrib. Mineral. Petrol. 40 (1973) 259-274
10. Eales H.V., and Reynolds I.M. Cryptic variation within chromites of the Upper Critical Zone, northwestern Bushveld Complex. Econ. Geol. 81 (1986) 1056-1066
11. Fechtig H., Gentner W., and Zähringer J. Argon Bestimmungen an Kaliumminerlien-VII. Diffusionsverluste von Argon in Mineralien und ihre Auswirkung auf die Kalium-Argon-Altersbestimmung. Geochim. Cosmochim. Acta 19 (1960) 70-79
12. Fechtig H., and Kalbitzer S. The diffusion of argon in potassium bearing solids. In: Schaeffer O.A., and Zahringer J. (Eds). Potassium-Argon Dating (1966), Springer 68-106
13. Fortier S.M., and Giletti B.J. An empirical model for predicting diffusion coefficients in silicate minerals. Science 245 (1989) 1481-1485
14. Garrick-Bethell I., Weiss B.P., Shuster D., and Buz J. Early lunar magnetism. Science 323 (2009) 356-359
15. Giletti B.J., and Shanahan T.M. Alkali diffusion in plagioclase feldspar. Chem. Geol. 139 (1997) 3-20
16. 39Ar age spectra and the thermal history of the region. Earth Planet. Sci. Lett. 55 (1981) 123-149
17. 39Ar results for alkali feldspars containing diffusion domains with differing activation energy. Geochim. Cosmochim. Acta 55 (1991) 1435-1448
18. Hess P.C., and Parmentier E.M. A model for the thermal and chemical evolution of the Moon's interior: implications for the onset of mare volcanism. Earth Planet. Sci. Lett. 134 (1995) 501-514
19. 39Ar dating standard using primary K-Ar standards. Geochim. Cosmochim. Acta 71 (2007) 387-402
20. Kuiper K.F., Deino A., Hilgen F.J., Krijgsman W., Renne P.R., and Wijbrans J.R. Synchronizing rock clocks of Earth history. Science 320 (2008) 500-504
21. 39Ar thermochronometry for slowly cooled samples having a distribution of diffusion domain sizes. J. Geophys. Res. 94 (1989) 17917-17935
22. 39Ar release during step heating. J. Geophys. Res. 96 (1991) 2057-2069
23. 39Ar step heating results: I. Significance of activation energy determinations. Geochim. Cosmochim. Acta 61 (1997) 3171-3192
24. Ludwig, K.R. (2003). Using Isoplot/Ex, Version 2.01: A geochronological toolkit for Microsoft Excel. Berkeley Geochronology Center Special Publication, Berkeley Geochronology Center, Berkeley, CA. 1a, 47 pp.
25. 39Ar Method (1999), Oxford University Press
26. Meyer W.V., and Neldel H. Uber die Beziehungen zwischen der Energiekonstanten e und der Mengenkonstanten (Y der Leitwerts-Temperaturformel bei oxydischen Halbleitern. Z. Technol. Phys. 18 (1937) 588-593
27. 39Ar geochronometer. Eos Transactions AGU 87 (2006) 52
28. 39Ar age constraints on ore deposition and cooling of the Bushveld Complex, South Africa. J. Geol. Soc. Lond. 161 (2004) 411-420
29. 39Ar Thermochronometry of the imataca complex, Venezuela. Precambrian Research 42 (1989) 255-291
30. 39Ar thermochronology using alkali feldspars: real thermal history or mathematical mirage of microtexture?. Contrib. Mineral. Petrol. 136 (1999) 92-110
31. 39Ar dating of 1.0-1.1 Ga magnetizations from the são francisco and kalahari cratons: tectonic implications for Pan-African and Brasiliano mobile belts. Earth Planet. Sci. Lett. 101 (1990) 349-366
32. Renne P.R., Deckart K., Ernesto M., Féraud G., and Piccirillo E.M. Age of the Ponta Grossa Dike Swarm (Brazil) and implications for paraná flood volcanic province. Earth Planet. Sci. Lett. 144 (1996) 199-212
33. 39Ar dating. Chem. Geol. 145 (1998) 117-152
34. 39Ar geochronology. Applied Radiation and Isotopes 62 (2005) 25-32
35. 39Ar geochronology: Time for a change?. Quaternary Geochronology 4 (2009) 288-298
36. Scoates J.S., and Friedman R.M. Precise age of the platiniferous Merensky Reef, Bushveld Complex, South Africa, by the U-Pb zircon chemical abrasion ID-TIMS technique. Economic Geology 103 (2008) 465-471
37. Steiger R.H., and Jäger E. Subcommission on geochronology: convention on the use of decay constants in geo- and cosmochronology. Earth and Planetary Science Letters 5 (1977) 320-324