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Filters: Author is Keays, R. R.  [Clear All Filters]
Book Chapter
P. C. Lightfoot, Keays, R. R., and Doherty, W., “Can impact-generated melts have mantle contributions? Geochemical evidence from the Sudbury igneous complex”, in Conference on Large meteorite impacts and planetary evolution; abstracts, vol. 922, Lunar and Planetary Institute, Houston, TX, United States, 1997, p. 30.
GeoRef, Copyright 2018, American Geological Institute.2001-020201
R. A. Sproule, Houlé, M. G., Lesher, C. M., Keays, R. R., Ayer, J. A., and Thurston, P. C., “Chalcophile element geochemistry of komatiitic rocks in the Abitibi greenstone belt, Canada; implications for their source region and metallogenesis”, in Geological Association of Canada - Mineralogical Association of Canada Joint Annual Meeting Abstracts, vol. 28, Geological Association of Canada, Waterloo, ON, Canada, 2003.
GeoRef, Copyright 2018, American Geological Institute.2007-053689
C. L. Peach, Mathez, E. A., and Keays, R. R., “Experimental sulfide melt-silicate melt partition coefficients for Ir and Pd”, in IAGOD; international symposium on Mineralization related to mafic and ultramafic rocks, with a special session on Alkaline and carbonatitic magmatism and associated mineralization, vol. 5, Suppl. 3, Blackwell Scientific Publications, Oxford, International, 1993, p. 41.
GeoRef, Copyright 2018, American Geological Institute.2005-061204
L. - D. Matthews, Lesher, C. M., O Burnham, M. A. R. C. U. S., Hulbert, L. A. R. R. Y., Peck, D. A. V. I. D. C., Golightly, J. P., and Keays, R. R., “Exploration for komatiite-associated Ni-Cu-(PGE) mineralization in the Thompson nickel belt, Manitoba”, in The challenge of finding new mineral resources; global metallogeny, innovative exploration and new discoveries; Volume II, Zinc-lead, nickel-copper-PGE and uranium, vol. Special Publication, No. 15, R. J. Goldfarb, Marsh, E. E., and Monecke, T., Eds. Society of Economic Geologists, 2010, pp. 513-538.
D. Layton-Matthews, Lesher, C. M., Burnham, O. M., Hulbert, L., Peck, D. C., Golightly, J. P., and Keays, R. R., “Exploration for komatiite-associated Ni-Cu-(PGE) mineralization in the Thompson nickel belt, Manitoba”, in The challenge of finding new mineral resources; global metallogeny, innovative exploration and new discoveries; Volume II, Zinc-lead, nickel-copper-PGE and uranium, vol. 15, Vol. II, R. J. Goldfarb, Marsh, E. E., and Thomas, M., Eds. Society of Economic Geologists, Littleton, CO, United States, 2010, pp. 513-538.
GeoRef, Copyright 2018, American Geological Institute.2012-072613Pipe Formation
R. R. Keays and Lightfoot, P. C., “Formation of Ni-Cu-platinum group element sulfide mineralization in the Sudbury impact melt sheet”, in New frontiers in research on NiS-PGE mineralization, vol. 82, W. E. Stone and Beresford, S. W., Eds. Springer-Verlag, Vienna, Austria, 2004, pp. 217-258.
GeoRef, Copyright 2018, American Geological Institute.2011-022615platinum group ores
S. A. Prevec, Xie, Q., Keays, R. R., and Lightfoot, P. C., “Geochemical and samarium-neodymium isotopic evidence regarding the origin of offset dikes of the Sudbury igneous complex, Ontario”, in Conference on Large meteorite impacts and planetary evolution; abstracts, vol. 922, Lunar and Planetary Institute, Houston, TX, United States, 1997, p. 45.
GeoRef, Copyright 2018, American Geological Institute.2001-020228
P. C. Lightfoot, Farrell, K. P., Pekeski, D., Moore, M., and Keays, R. R., “Geochemical relationships among the main mass, sublayer and offsets of the Sudbury igneous complex, Ontario, Canada”, in Summary of field work and other activities 1995, J. A. Ayer, Baker, C. L., Fyon, J. A., Junkin, J. A., Kaszycki, C. A., Laderoute, D. G., Merlino, G., Newsome, J. W., Owsiacki, L., Richardson, J. M., Spiers, G., and Thurston, P. C., Eds. Ontario Geological Survey, Toronto, ON, Canada, 1995, pp. 116-121.
GeoRef, Copyright 2018, American Geological Institute.2011-076546Manchester OffsetParkin OffsetWhistle MineWorthington Offset
P. C. Lightfoot, Farrell, K., Moore, M., Pekeski, D., Crabtree, D., and Keays, R. R., “Geochemical relationships between the sublayer, main mass, and offsets, Sudbury igneous complex, Canada”, in Institute on Lake Superior Geology, 41st annual meeting, proceedings; Part 1, Program and abstracts, vol. 41, PART1, M. Smyk and Kehlenbeck, M., Eds. Institute on Lake Superior Geology, Eau Claire, WI, United States, 1995, pp. 38-39.
GeoRef, Copyright 2018, American Geological Institute.1999-020567Whistle Mine
P. C. Lightfoot, Farrell, K., Moore, M., Pekeski, D., Crabtree, D., and Keays, R. R., “Geochemical variations within the sublayer and the mafic-ultramafic inclusions, Whistle Mine, Sudbury igneous complex, Canada”, in Institute on Lake Superior Geology, 41st annual meeting, proceedings; Part 1, Program and abstracts, vol. 41, PART1, M. Smyk and Kehlenbeck, M., Eds. Institute on Lake Superior Geology, Eau Claire, WI, United States, 1995, pp. 40-41.
GeoRef, Copyright 2018, American Geological Institute.1999-020568Whistle Mine
P. C. Lightfoot, Keays, R. R., Morrison, G. G., and Bite, A., “Geological and geochemical relationships between the contact sublayer, offsets, and main mass of the Sudbury igneous complex”, in Conference on Large meteorite impacts and planetary evolution; abstracts, vol. 922, Lunar and Planetary Institute, Houston, TX, United States, 1997, pp. 30-31.
GeoRef, Copyright 2018, American Geological Institute.2001-020202
K. Y. Tomlinson, Hughes, D. J., Thurston, P. C., Davis, D. W., and Keays, R. R., “The greenstone belts of the central Wabigoon Subprovince; geochemistry, petrogenesis and tectonic setting”, in LithoProbe; Western Superior Transect third annual workshop, vol. 63, R. Harrap and Helmstaedt, H., Eds. University of British Columbia, Lithoprobe Secretariat [for the] Canadian Lithoprobe Program, Vancouver, BC, Canada, 1997, pp. 83-88.
GeoRef, Copyright 2018, American Geological Institute.1998-072057Caribou Lake greenstone beltGarden Lake greenstone beltHeaven Lake greenstone beltLac des Iles greenstone beltObonga Lake greenstone belt
C. M. Lesher and Keays, R. R., “Komatiite-associated Ni-Cu-(PGE) deposits; geology, mineralogy, geochemistry, and genesis”, in The geology, geochemistry, mineralogy and mineral beneficiation of platinum-group elements, vol. 54, L. J. Cabri, Ed. Canadian Institute of Mining and Metallurgy, Montreal, QC, Canada, 2002, pp. 579-617.
GeoRef, Copyright 2018, American Geological Institute.2003-072631
S. A. Prevec, Zhou, M. F., Scriver, C. M., and Keays, R. R., “Laurentian-MNDM Geoscience Laboratories collaboration determination of PGE and Au in geologic materials using ICP-MS after a) HF dissolution and b) Ni-S fire-assay techniques; a progress report”, in Summary of field work and other activities 1995, J. A. Ayer, Baker, C. L., Fyon, J. A., Junkin, J. A., Kaszycki, C. A., Laderoute, D. G., Merlino, G., Newsome, J. W., Owsiacki, L., Richardson, J. M., Spiers, G., and Thurston, P. C., Eds. Ontario Geological Survey, Toronto, ON, Canada, 1995, pp. 210-212.
GeoRef, Copyright 2018, American Geological Institute.2011-076575fire assay
K. P. J. Farrell, Lightfoot, P. C., and Keays, R. R., “Mafic-ultramafic inclusions in the sublayer of the Sudbury igneous complex, Whistle Mine, Sudbury, Ontario”, in Summary of field work and other activities 1995, J. A. Ayer, Baker, C. L., Fyon, J. A., Junkin, J. A., Kaszycki, C. A., Laderoute, D. G., Merlino, G., Newsome, J. W., Owsiacki, L., Richardson, J. M., Spiers, G., and Thurston, P. C., Eds. Ontario Geological Survey, Toronto, ON, Canada, 1995, pp. 126-128.
GeoRef, Copyright 2018, American Geological Institute.2011-076548melanoriteWhistle Mine
M. F. Zhou, Yang, Z. X., Song, X. Y., Keays, R. R., and Lesher, C. M., “Magmatic Ni-Cu-(PGE) sulphide deposits in China”, in The geology, geochemistry, mineralogy and mineral beneficiation of platinum-group elements, vol. 54, L. J. Cabri, Ed. Canadian Institute of Mining and Metallurgy, Montreal, QC, Canada, 2002, pp. 619-636.
GeoRef, Copyright 2018, American Geological Institute.2003-072632Hongqiling DepositHongshila DepositHuangshan DepositJinbaoshan DepositKaratungk DepositYangliuping Deposit
P. C. Lightfoot, Prevec, S. A., and Keays, R. R., “Mineral potential of the Nipissing gabbro”, in Summary of field work and other activities 1995, J. A. Ayer, Baker, C. L., Fyon, J. A., Junkin, J. A., Kaszycki, C. A., Laderoute, D. G., Merlino, G., Newsome, J. W., Owsiacki, L., Richardson, J. M., Spiers, G., and Thurston, P. C., Eds. Ontario Geological Survey, Toronto, ON, Canada, 1995, pp. 113-115.
GeoRef, Copyright 2018, American Geological Institute.2011-076545
D. Layton-Matthews, Lesher, C. M., Liwanag, J., Halden, N., Burnham, O. M., Hulbert, L., Peck, D. C., and Keays, R. R., “Mineralogy, geochemistry, and genesis of komatiite-associated Ni-Cu-PGE mineralization in the Thompson nickel belt, Manitoba”, in Magmatic Ni-Cu and PGE deposits; geology, geochemistry, and genesis, vol. 17, C. Li and Ripley, E. M., Eds. Society of Economic Geologists, Boulder, CO, United States, 2011, pp. 123-143.
GeoRef, Copyright 2018, American Geological Institute.2012-062790
S. A. Prevec, Keays, R. R., Lightfoot, P. C., and Xie, Q., “Origin of the sublayer of the Sudbury igneous complex; samarium-neodymium isotopic, geochemical, and petrographic evidence for incomplete crustal homogenization”, in Conference on Large meteorite impacts and planetary evolution; abstracts, vol. 922, Lunar and Planetary Institute, Houston, TX, United States, 1997, pp. 44-45.
GeoRef, Copyright 2018, American Geological Institute.2001-020227
O. M. Burnham, Keays, R. R., and Lesher, C. M., “Platinum group and trace element geochemical evidence for the petrogenesis of mineralised peridotite lava channels in the Cape Smith Belt, northern Quebec”, in Quebec 1998; abstract volume; Crossroads of Earth sciences, vol. 23, Geological Association of Canada, Waterloo, ON, Canada, 1998, pp. A25-A26.
GeoRef, Copyright 2018, American Geological Institute.2000-054964
R. S. James, Jobin-Bevans, S., Easton, R. M., Wood, P., Hrominchuk, J. L., Keays, R. R., and Peck, D. C., “Platinum-group element mineralization in Paleoproterozoic basic intrusions in central and northeastern Ontario, Canada”, in The geology, geochemistry, mineralogy and mineral beneficiation of platinum-group elements, vol. 54, L. J. Cabri, Ed. Canadian Institute of Mining and Metallurgy, Montreal, QC, Canada, 2002, pp. 339-365.
GeoRef, Copyright 2018, American Geological Institute.2003-072622East Bull Lake Intrusion
S. A. Prevec, Corfu, F., Moore, M. L., Lightfoot, P. C., and Keays, R. R., “Postmagnetic zircon growth on exotic early magmatic phases associated with the emplacement of the Sudbury igneous complex; samarium-neodymium isotopic, geochemical, and petrographic evidence”, in Conference on Large meteorite impacts and planetary evolution; abstracts, vol. 922, Lunar and Planetary Institute, Houston, TX, United States, 1997, p. 44.
GeoRef, Copyright 2018, American Geological Institute.2001-020226Whistle Mine
L. S. Jobin-Bevans, Keays, R. R., and MacRae, N. D., “Project 97012; Cu-Ni-PGE in Nipissing Diabase; results from surface and core samples”, in Summary of field work and other activities 1999, J. A. Ayer, Baker, C. L., Kelley, R. I., Stott, G. M., and Thurston, P. C., Eds. Ministry of Natural Resources, Toronto, ON, Canada, 1999, pp. 33.1-33.5.
GeoRef, Copyright 2018, American Geological Institute.2001-016718
S. A. Prevec, Zhou, M., Lightfoot, P. C., and Keays, R. R., “Project Unit 93-08; Discrimination of barren and mineralized Sublayer environments of the Sudbury igneous complex”, in Summary of field work and other activities 1995, J. A. Ayer, Baker, C. L., Fyon, J. A., Junkin, J. A., Kaszycki, C. A., Laderoute, D. G., Merlino, G., Newsome, J. W., Owsiacki, L., Richardson, J. M., Spiers, G., and Thurston, P. C., Eds. Ontario Geological Survey, Toronto, ON, Canada, 1995, p. 129.
GeoRef, Copyright 2018, American Geological Institute.2011-076549Sublayer Unit
P. C. Lightfoot, Keays, R. R., Moore, M., Farrell, K. P. J., and Pekeski, D., “Project Unit 93-08; Geochemistry of the Sudbury igneous complex”, in Summary of field work and other activities, 1994, C. L. Baker, Dressler, B. O., de Souza, H. A. F., Fyon, J. A., Kaszycki, C. A., Laderoute, D. G., Merlino, G., Newsome, J. W., Owsiacki, L., Richardson, J. M., Thurston, P. C., and Wood, N., Eds. Ontario Geological Survey, Toronto, ON, Canada, 1994, pp. 81-86.
GeoRef, Copyright 2018, American Geological Institute.2012-024558Ni/Cu