Petrology, geochemistry, and U-Pb (zircon) age of the quartz-feldspar porphyry dyke at the Lake George antimony mine, New Brunswick: Implications for origin, emplacement process, and mineralization

Atlantic Geology

Volumn 42, Issue 1, 2006, Pages 13-29

  Leonard, P R R ^a   Lentz, D R ^a   Poujol, M ^b  

^a UNIVERSITY OF NEW BRUNSWICK   (Canada)

^b MEMORIAL UNIVERSITY OF NEWFOUNDLAND   (Canada)

Author keywords

[No Author keywords available]

Indexed keywords

BATHOLITH; DIKE; EMPLACEMENT; IGNEOUS GEOCHEMISTRY; IGNEOUS INTRUSION; PETROLOGY;

CANADA; NEW BRUNSWICK; NORTH AMERICA;

EID: 33747047225     PISSN: 08435561     EISSN: None     Source Type: Journal    
DOI: None     Document Type: Article

References (56)

1. Baker, D.R. 1998. Granitic melt viscosity and dike formation. Journal of Structural Geology, 20, pp. 1395-1404.
2. Barker, F. 1979. Trondhjemite: Definition, environment and hypotheses of origin. In Trondhjemites, dacites and related rocks. Edited by F. Barker. Amsterdam, Elsevier, pp. 1-12.
3. Bevier, M. L., & Whalen, J. B. 1990a. U-Pb geochronology of Silurian granites, Miramichi terrane, New Brunswick. In Radiogenic Age and Isotopic Studies: Report 3, Geological Survey of Canada, Paper 89-2, pp. 93-100.
4. Bevier, M. L., & Whalen, J. B. 1990b. Tectonic significance of Silurian magmatism in the Canadian Appalachians. Geology, 18, pp. 411-414.
5. Candela, P.A. 1991. Felsic magmas, volatiles, and metallogenesis. In Ore deposition associated with magmas. Edited by J.A. Whitney and A.J. Naldrett. Reviews in Economic Geology, 4, pp. 223-233.
6. Caron, A. 1996. Geology of the Pokiok Batholith aureole, with emphasis on the Lake George Mine, York County, New Brunswick. New Brunswick Department of Natural Resources and Energy, Minerals and Energy, Geoscience Report 94-2, 91 p.
7. Christiansen, E.H., & Keith, J.D. 1996. Trace-element systematics in silicic magams: a metallogenic perspective. In Trace Element Geochemistry of Volcanic Rocks: Applications for Massive Sulfide Exploration. Edited by D.A. Wyman. Geological Association of Canada, Short Course Notes 12, pp. 115-151.
8. Clarke, D.B. 1992. Granitoid rocks. London, Chapman & Hall, 283 p.
9. Dubé, B., Dunning, G.R., Lauziere, K., & Roddick, J.C. 1996. New in-sights into the Appalachian orogen from geology and geochronology along the Cape Ray fault zone southwest Newfoundland. Geological Society of America Bulletin, 108, pp. 101-116.
10. El Bouseily, A. M., & El Sokkary, A. A. 1975. The relation between Rb, Ba and Sr in granitic rocks. Chemical Geology, 16, pp. 207-219.
11. Fenn, P.M. 1986. On the origin of graphic granite. American Mineralogist, 71, pp. 325-330.
12. Hanchar, J.M., & Watson, E.B. 2004. Zircon saturation thermometry. Reviews in Mineralogy & Geochemistry, 53, pp. 89-112.
13. Harrison, T.M., & Watson, E.B. 1984. The behavior of apatite during crustal anatexis: equilibrium and kinetic considerations. Geochimica et Cosmochimica Acta, 48, pp. 1467-1477.
14. Ishihara, S. 1981. The granitoid series and mineralization. Economic Geology 75th Anniversary Issue, pp. 458-484.
15. Krogh, T.E. 1982. Improved accuracy of U-Pb ages by the creation of more concordant systems using an air abrasion technique. Geochimica et Cosmochimica Acta 46, pp. 617-649.
16. Le Maitre, R.W., Bateman, P., Dudek, A., Keller, J., Lameyre, J., Le Bas, M.J., Sabine, P.A., Schmid, R., Sorensen, H., Streckeisen, A., Wooley, A.R., & Zanettin, B. 1989. A Classification of Igneous Rocks and Glossary of Terms, Blackwell, Oxford, 193 p.
17. Lentz, D.R., & Fowler, A.D. 1992. A dynamic model for graphic quartz-feldspar intergrowths in granitic pegmatites in the Southwestern Grenville Province. Canadian Mineralogist, 30, pp. 571-585.
18. Lentz, D.R., Thorne, K., & Yang, X. 2002a. Preliminary analysis of the controls on the various episodes of gold mineralization at the Lake George antimony deposit, New Brunswick. Mineral Resource Report, MRR 2002-4, pp. 55-79.
19. Lentz, D.R., Thorne, K.G., Yang, X., & Adams, M. 2002b. Shoshonitic lamprophyre dykes at the Lake George antimony deposit, New Brunswick: petrochemical characteristics and implications for gold mineralization, New Brunswick Department of Natural Resources and Energy, Minerals, Policy and Planning Division, Mineral Resource Report 2002-4, pp. 41-54.
20. Longerich, H.P. 1995. Analysis of pressed powder pellets of geological samples using wavelength-dispersive x-ray fluorescence spectrometry. X-ray Spectrometry, 24, pp.123-136.
21. Ludwig, K.R. 1993. A computer program for processing Pb-U-Th isotope data, version 1.24, Denver. United States Geological Survey, Open File Report, 88-542, 32pp.
22. Ludwig, K.R. 2000. Isoplot/Ex: A geochronological toolkit for Microsoft Excel. Bekerley Geochronology Center, Bekerley.
23. Lutes, G.G. 1987. Geology and geochemistry of the Pokiok Batholith, New Brunswick. New Brunswick Department of Natural Resources, Mineral Resources Branch, Report of Investigation No. 22, 74 p.
24. MacLellan, H.E., & Trembath, L.T. 1991. The role of quartz crystallization in the development and preservation of igneous texture in granitic rocks: experimental evidence at 1 kbar. American Mineralogist, 76, pp. 1291-1305.
25. Martin, R.F., & Bonin, B. 1976. Water and magma genesis: the association hypersolvus granite-subsolvus granite. Canadian Mineralogist, 14, pp. 228-237.
26. McBirney, A.R., & Murase, T. 1984. Rheological properties of magmas. Annual Review of Earth and Planetray Science, 12, pp. 337-357.
27. McDonough, W.F., & Sun, S.S. 1995. The composition of the Earth. Chemical Geology, 120, pp. 223-253.
28. McLeod, M.S., Johnson, S.C., & Krogh, T.E. 2003. Archived U-Pb (zircon) dates from southern New Brunswick. Atlantic Geology, 39, pp. 209-225.
29. Miller, C.F., & Mittlefehldt, D.W. 1982. Depletion rare-earth elements in felsic magmas. Geology, 10, pp. 129-133.
30. Morrissy, C.J. 1991. Further characterization of drill core from the Lake George mine, York County, New Brunswick. New Brunswick Department of Natural Resources and Energy, Mineral Resources, Open File Report 91-8, 74 p.
31. Morrissy, C.J., & Ruitenberg, A.A. 1980. Geology of the Lake George antimony deposit southern New Brunswick. Canadian Institiute of Mining and Metallurgy Bulletin, 73, pp. 79-84.
32. Müller, D., & Groves, D.I. 2000. Potassic igneous rocks and associated gold-copper mineralization. Springer, New York, 252 p.
33. Naney, M.T. 1983. Phase equilibria of rock-forming ferro-magnesian silicates in granitic systems. American Journal of Science, 283, pp. 993-1033.
34. Ohmoto, H., & Goldhaber, M.B. 1997 Sulfur and carbon isotopes. In Geochemistry of hydrothermal ore deposits. Edited by H.L. Barnes, 3rd edition, New York, John Wiley & Sons, Inc., pp. 517-611.
35. Parrish, R.R. 1987 An improved micro-capsule for zircon dissolution in U-Pb geochronology. Chemical Geology, 66, pp. 99-102.
36. Pearce, J.A, Harris, N.B.W., & Tindle, A.G. 1984. Trace element discrimination diagrams for the tectonic interpretation of granitic rocks. Journal of Petrology, 25, pp. 956-983.
37. Procyshyn, E.L., & Morrissy, C.J. 1990. Geology of the Lake George Mine, southern New Brunswick. In Mineral Deposits of New Brunswick and Nova Scotia. Edited by D. R. Boyle. 8th IAGOD Symposium Field Trip Guidebook. Geological Survey of Canada, Open File 2157, pp. 58-67.
38. Richards, J.P. 2001. Discussion of "Is there a close spatial relationship between faults and plutons?". Journal of Structural Geology, 23, pp. 2025-2027.
39. Ruitenberg, A.A., & Fyffe, L. R. 1982. Mineral deposits associated with granitoid intrusions and related subvolcanic stocks in New Brunswick and their relationship to Appalachian tectonic evolution. Canadian Institute of Mining and Metallurgy, Bulletin 75, no. 842, pp. 83-97.
40. Seal, R.R., II, Clark, A.H., & Morrissy, C.J. 1987 Stockwork tungsten (scheelite)-molybdenum mineralization, Lake George southwestern New Brunswick. Economic Geology, 82, pp. 1259-1282.
41. Seal, R.R., II, Clark, A.H., & Morrissy, C.J. 1988. Lake George, southwestern New Brunswick: a Silurian multi-stage, polymetallic (Sb-W-Mo-Au-base metal) hydrothermal centre. In Recent Advances in the Geology of Granite-Related Mineral Deposits. Edited by R. P. Taylor and D. F. Strong. Canadian Institute of Mining and Metallurgy, Special Volume 39, pp. 252-264.
42. Shaw, H.R. 1972. Viscosities of magmatic silicate liquids: an empirical method of prediction. American Journal of Science, 272, pp. 870-893.
43. Shaw, H.R. 1980. The fracture mechanisms of magma transport from the mantle to the surface. In Physics of Magmatic Processes. Edited by R.B. Hargraves. Princeton University Press, pp. 201-264.
44. Scratch, R.B., Watson, G.P., Kerrich, R., & Hutchinson, R.W. 1984. Fracture-controlled antimony-quartz mineralization, Lake George deposit, New Brunswick: mineralogy, geochemistry, alteration, and hydrothermal regimes. Economic Geology, 79, pp. 1159-1186.
45. Stacey, J.S., & Kramers, J.D. 1975. Approximation of terrestrial lead isotope evolution by a two stage model. Earth Planetary Sciences Letters, 26, pp. 207-221.
46. Stirling, J.A.R. 1979. Crystallization of a felsic dyke. Unpublished M.Sc. thesis, University of New Brunswick, Fredericton, N.B., 110 p.
47. Wedepohl, K.H. 1995. The composition of the continental crust. Geochimica et Cosmochimica Acta, 59, pp. 1217-1232.
48. Weinberg, R.F. 1996. Ascent mechanism of felsic magmas: news and views. Transactions of the Royal Society of Edinburgh: Earth Sciences, 87, pp. 95-103.
49. Whalen, J.B. 1993. Geology, petrology, and geochemistry of Appalachian granites in New Brunswick and Gaspésie, Quebec. Geological Survey of Canada, Bulletin 463, 124 p.
50. Whalen, J.B., Jenner, G.A., Longstaffe, F.J., & Hegner, E. 1996. Nature and evolution of the eastern margin of Iapetus: geochemical and isotopic constraints from Siluro-Devonian granitoid plutons in the New Brunswick Appalachians. Canadian Journal of Earth Sciences, 33, pp. 140-155.
51. Wohletz, K., & Heiken, G. 1991. Volcanology and Geothermal Energy. University of California, 432 p.
52. Wones, D.R. 1981. Mafic silicates as indicators of intensive variables in granitic magmas. Mining Geology, 31, pp.191-212.
53. Yang X.M. 2005. Petrogenesis of gold-related granitoid intrusions in southwestern New Brunswick, Canada. Unpublished Ph.D. thesis, University of New Brunswick, Fredericton, NB.
54. Yang, X., Lentz, D., & Chi, G. 2002a. Petrochemistry of Lake George granodiorite stock and related gold mineralization, York County, New Brunswick. Geological Survey of Canada, CR Report 2002-D7, 10 p.
55. Yang, X., Lentz, D., Hall, D.C., & Chi, G. 2002b. Petrology of the Lake George granodiorite stock, New Brunswick: implications for crystallization conditions, volatile exsolution, and W-Mo-Au-Sb mineralization. Geological Survey of Canada, CR Report 2002-E14, 12 p.
56. Yang, X.M., Lentz, D.R., & McCutcheon, S.R. 2003. Petrochemical evolution of subvolcanic granitoid intrusions within the Late Devonian Mount Pleasant Caldera, south-western New Brunswick, Canada: comparison of Au versus Sn-W-Mo-polymetallic mineralization systems. Atlantic Geology, 39, pp. 97-121.