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Filters: Author is Keays, R. R.  [Clear All Filters]
1993
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
1994
P. T. Chubb, Vogel, D. C., Peck, D. C., James, R. S., and Keays, R. R., “Occurrences of pseudotachylyte at the East Bull Lake and Shakespeare-Dunlop intrusions, Ontario, Canada”, Canadian Journal of Earth Sciences = Revue Canadienne des Sciences de la Terre, vol. 31, pp. 1744-1748, 1994.
GeoRef, Copyright 2018, American Geological Institute.1995-006716East Bull Lake IntrusionShakespeare-Dunlop Intrusion
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
1995
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
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
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
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
M. Moore, Lightfoot, P. C., and Keays, R. R., “Project Unit 93-08; Geology and geochemistry of North Range footwall ultramafic rocks, Sudbury igneous complex, 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. 122-123.
GeoRef, Copyright 2018, American Geological Institute.2011-076547North Range
D. Pekeski, Lightfoot, P. C., and Keays, R. R., “Project Unit 93-08; Geology and geochemistry of the Totten Mine section of the Worthington Offset, Sudbury igneous complex, 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. 124-125.
GeoRef, Copyright 2018, American Geological Institute.2011-076609Totten MineWorthington Offset
1996
H. W. Nesbitt, Young, G. M., McLennan, S. M., and Keays, R. R., “Effects of chemical weathering and sorting on the petrogenesis of siliciclastic sediments, with implications for provenance studies”, Journal of Geology, vol. 104, pp. 525-542, 1996.
GeoRef, Copyright 2018, American Geological Institute.1996-073296Mallacoota Basinsoutheastern Australia
1997
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
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, Hawkesworth, C. J., Olshefsky, K., Green, T., Doherty, W., and Keays, R. R., “Geochemistry of Tertiary tholeiites and picrites from Qeqertarssuaq (Disko Island) and Nuussuaq, West Greenland with implications for the mineral potential of comagmatic intrusions”, Contributions to Mineralogy and Petrology, vol. 128, pp. 139-163, 1997.
GeoRef, Copyright 2018, American Geological Institute.2000-042471Kraulshavn GreenlandQeqertarssauq
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
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
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
1998
D. C. Vogel, James, R. S., and Keays, R. R., “The early tectono-magmatic evolution of the Southern Province; implications from the Agnew Intrusion, central Ontario, Canada”, Canadian Journal of Earth Sciences = Revue Canadienne des Sciences de la Terre, vol. 35, pp. 854-870, 1998.
GeoRef, Copyright 2018, American Geological Institute.1999-014872Agnew Intrusioncentral OntarioEast Bull Lake Intrusion
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
J. P. Lorand, Luguet, A., Keays, R. R., and Alard, O., “Se contents and S/Se ratios of spinel peridotite xenoliths from the Massif Central (France)”, in V. M. Goldschmidt conference, abstracts volume; Hoffman-Rihs, vol. 62A, Part 2, J. Schott, Ed. Mineralogical Society, London, United Kingdom, 1998, pp. 903-904.
GeoRef, Copyright 2018, American Geological Institute.2006-052259
F. P. Bierlein, Fuller, T., Stuewe, K., Arne, D. C., and Keays, R. R., “Wallrock alteration associated with turbidite-hosted gold deposits; examples from the Palaeozoic Lachlan fold belt in central Victoria, Australia”, in Mesothermal gold mineralization in space and time, vol. 13, W. R. H. Ramsay, Bierlein, F. P., and Arne, D. C., Eds. Elsevier, Amsterdam, International, 1998, pp. 345-380.
GeoRef, Copyright 2018, American Geological Institute.1999-025733
1999
D. C. Vogel, Keays, R. R., James, R. S., and Reeves, S. J., “The geochemistry and petrogenesis of the Agnew Intrusion, Canada; a product of S-undersaturated, high-Al and low-Ti tholeiitic magmas”, Journal of PetrologyJournal of Petrology, vol. 40, pp. 423-450, 1999.
GeoRef, Copyright 2018, American Geological Institute.1999-034201Agnew Intrusion