DEPARTMENT OF

Geological Sciences and

Geological Engineering

site header
photo of Gema Olivo

Gema R. Olivo, P.Eng.

Office: Miller 321
Phone: 613 533-6998
Fax: 613 533-6592
Email: olivo@geol.queensu.ca

      

Profile

 Professor Gema R. Olivo has been working since 1999 at Queen’s, after completion of her post-doctoral research at McGill University.  She received her B.Sc. in Geology and M.Sc.  in Mineral Exploration from Universidade de Brasília, and Ph.D from Université du Québec à Montréal. Her main research interest is to understand processes involved in the genesis of hydrothermal ore deposits, particularly precious metal deposits, using a multidisciplinary approach.  Her research team has contributed to furthering the understanding of a variety of minerals deposits including greenstone belt-hosted gold deposits, Carlin-type gold deposits, Au-PGE in iron-formations (Jacutinga-type), PGE-Ni-Cu in mafic-ultramafic sequences, Ag-rich epithermal deposits, and Zr- REE deposits, among others. She is also involved in teaching and mentoring programs on Resources and Sustainability. In 2003 she was granted the Premier's Research Excellence Award for her research on Hydrothermal Gold Deposits, from 2007 to 2009 was associate editor to Canadian Mineralogist, she was elected as a councillor for Society of Economic Geologists (2012-2014), and is member of the NSERC Strategic Grant committee on Natural Resources (2011-2013).  She has been fortunate to work with a large number of talented graduate students and post-doctoral fellows, some of them being recipients of major national international awards.

Supervising Information

Current (for list of former students follow link in construction)

M. Sc. and M.Sc.E. students:

  • A. McGladrey (start May 2012): Integrating geology, mineralogy, geochemistry and petrophysics applied to exploration
  • A. Dobosz (started May 2010): Mechanisms of trace element incorporation in auriferous arsenian    pyrite from Carlin-type deposits using advanced mineralogical methods (NSERC Scholarship)
  • P. Slezak (started Sept 2009): Genesis of the Silicate Zinc Mineralization in North (MASA) extension of the Vazante Mine, Brazilian Fold Belt, Brazil. (Society of Economic Geologist Student Grant Award, 2010).
  • S. Marsden (started Sept 2009): Genesis of the Bruce Channel Gold Mineralization, Red Lake District, Canada (NSERC scholarship)

M.Sc. Students (MAG/QMinEx Program):

  • A. Testi (started Sept 2011):
  • A. Aristizabal (started Sept 2011): Metallogeny of the Colombian Belt
  • I. Annes (started Sept 2011): Carlin-like deposit
  • L. Millington(started Sept 2011): Constrains on the ages of the Vazante deposit host rocks.

Research Interests/Current Research

My research goals are mainly to understand the mechanisms by which metals are stored, migrate and are concentrated in anomalous amounts in the upper crust to form mineral deposits. These objectives are achieved by applying a multidisciplinary approach, and the applications of the knowledge generated by this research program are aimed at helping to improve exploration strategies and minimize the costs of mineral exploration. In past years, my research focused on precious metal deposits and districts (gold, silver and platinum-group elements) in volcanic-plutonic and sedimentary sequences in various geological settings in Canada, Brazil, USA, Mexico, New Zealand, Peru and Argentina, among others. I have also collaborated in the investigation of a variety of mineral deposits around the world, including: uranium deposits associated with unconformities in the Athabasca basin and its basement, Canada (Eagle Point, Millennium deposits, and Wheeler River alteration system); Zr, and REE deposits in South Africa (Pilanesberg Project) and New Mexico (Gallinas Deposit); Ag-rich epithermal-type prospects in Peru (Santo Toribio and Pozo Rico) and Argentina (Navidad); and VMS prospects in Dominican Republic (San Antonio Concession) and deposits in Canada (Kidd Creek, Ontario and High Lake, Nunavut); tin deposit in greisen systems in Central Brazil (Mangabeira); gold deposits related to intrusions in Cuba (La Union prospect); among others. More recently my research team has developed a collaborative program with colleagues at the Universidade de Brasília to investigate the metallogeny of the eastern part of the Brasília fold belt, which hosts world-class gold and zinc deposits.

Professional Associations

  • Member, Professional Engineers of Ontario (2004 to present)
  • Fellow Society of Economic Geologists (2004- present)
  • Society of Economic Geologist (SEG)- Concilor 2011-2013
  • Fellow, Geological Association of Canada (2003-present)
  • Member, Mineralogical Association of Canada (1999-present)
  • Member, Canadian Institute of Mining and Metallurgy (1999-2005)
  • Member, Prospectors and Developers Association of Canada (1999-present)

Publications

RESEARCH CONTRIBUTIONS

Book Chapter:

BOTELHO, Nilson Francisquini ; MOURA, M. A. ; TEIXEIRA, L. M. ; OLIVO, Gema Ribeiro; CUNHA, L. ; SANTANA, M. U.( 2005).  Caracterização Geológica e Metalogenética do Depósito de Cu (Au, W, Mo, e Sn) Breves, Carajás: In: Onildo João Marini; Emanuel Teixeira de Queiroz; Benedicto Waldir Ramos (Eds.). Caracterização de Depósitos Minerais em Distritos Mineiros da Amazônia. 1 ed. Brasília: DNPM-CTMINERAL-ADIMB, 2005, v. 1, p. 339-389.

Articles in refereed journals:

28. Olivo, G.R., Almeida, C., Archibald, D, Weakly, C. (submitted July 2009). New Insights on the Petrogenesis of the Jurassic and Eocene Shoshonitic Intrusive Rocks from the Southern Part of the Goldstrike Property, Nevada and their Metallogenetic Implications to Carlin-type Deposits. Economic Geology (in revision)

27. Kitney K.E., Olivo G.R., Davis D.W., Desrochers J-P., and Tessier A. (2011): The Barry Gold Deposit, Abitibi Subprovince, Canada: A Greenstone Belt-Hosted Gold Deposit Coeval With Late Archean Deformation and Magmatism: Economic Geology, v. 106:p. 1129-1154

26. Santana, M.M., Moura, M.A., Olivo, G.R., Bothelho, F.B., Kyser, T. K. and Buhn, B.  (2011). The La Unión Au-Cu prospect, Camagüey District, Cuba: fluid inclusion and stable isotope evidences for ore-forming processes. Mineralium Deposita, v. 46: 91-104

25. Cloutier, J., Kyser, T., Olivo, G.R., Alexandre, P., Brisbin D. (2011). Geochemical, isotopic and geochronlologic constraints on the formation of the Eagle Point basement-hosted uranium deposit, Athabasca Basin, Saskatchewan, Canada and recent remobilization of primary uraninite in secondary structures Mineralium Deposita v. 46: p. 35-56

24. Pitcairn, I. Olivo, G. R., Teagle, D.A.H., Craw, D. (2010). Sulfide Evolution During Prograde Metamorphism of the Otago and Alpine Schists, New Zealand. Canadian Mineralogist v. 48: 1267-1295

23. Bursztyn, N.E., Olivo, G.R (2010). PGE-Rich Ni-Cu Sulfide Mineralization in the Flin Flon Greenstone Belt, Manitoba, Canada: Implications for Hydrothermal Remobilization of Platinum Group Elements in Basic-Ultrabasic Sequences. Economic Geology,v. 105: 1469-1490

22. Almeida, C., Olivo, G.R., Chouinard, A., Weakly C., Pourier, G (2010) Mineral Paragenesis, Alteration and Metal Zoning of the Two Types of Gold Ore from the Carlin-type Deposits in the Southern Part of the Goldstrike Property, Northern Nevada: Implications for Source of Ore-Forming Elements, Ore Genesis and Mineral Exploration. Economic Geology,v. 105: 971-1004

21. Cloutier, J., Kyser, T., Olivo, G.R., Alexandre, P. (2010) The Wheeler River alteration system, Athabasca Basin, Saskatchewan, Canada: Insights into an apparently uranium barren alteration system. Economic Geology v. 105 p. 303-324

20. Cloutier, J. Kyser, K. Olivo, G.R., Alexandre, P., Haluburda, J. (2009). The Millennium Uranium Deposit, Athabaska Basin, Saskatchewan, Canada: An Atypical Basement-Hosted Unconformity-Related Uranium Deposit. Economic Geology v. 104, p. 815-840

19. Olivo, G.R.,Isnard, H., Williams-Jones, Gariépy, C.(2007). Pb isotopic investigation on the auriferous C quartz-tourmaline vein of the Siscoe gold mine, Southern Abitibi: constrains on the origin and age of the gold mineralization.Economic Geology, v.102, p. 137-146

18. Almeida, C.M., Olivo, G.R., Carvalho, S.G. (2007) Platinum group element-bearing Ni-Cu ore from the Komatiite-hosted Fortaleza de Minas deposit, Brazil: evidence for hydrothermal remobilization: Canadian Mineralogist v. 45, p 751-773.

17. Pitcairn, I. K., Teagle, D.A.H., Craw, D., Olivo, G.R., Kerrich, R. (2006). Source of metals and fluids in orogenic gold deposits: Insights from the Otago and Alpine Schists, New Zealand. Economic Geology, v. 101, n.6, 1525-1546

16. Olivo, G.R., Chang, F., Kyser, T,K (2006). Formation of Auriferous and Barren North Dipper veins in the Sigma Mine, Val d’Or, Canada: Constraints from Structural, Mineralogical, Fluid Inclusion and Isotopic Data. Economic Geology, v. 101. n.3, p.607-631 

15. Moura, M.A., Botelho, N. Olivo, G.R., Kyser, T.K. (2006): Hydrothermal Alteration, Fluid Inclusion and Stable Isotope Constraints on the Genesis and Evolution of the Granite-Related Paleoproterozoic Serrinha Deposit, Southern Amazonia, Brazil. Economic Geology  v. 101, n.3, p.585-605.

14. Olivo, G.R., and Theyer, P. (2004) Platinum Group Minerals from the McBratney PGE-Au Prospect in the Flin Flon Greenstone Belt, Manitoba, Canada, Canadian Mineralogist v. 42 p. 667-681

13. Olivo, G.R. and Gibbs, K. (2003). Paragenesis and Mineral Chemistry of Alabandite (MnS) from the Ag-rich Santo Toribio Epithermal Deposit, Northern Peru. Mineralogical Magazine, v. 67, p. 95-102.

12. Olivo, G.R. and Williams-Jones, A.E. (2002). Genesis of the Auriferous C Quartz-Tourmaline Vein of the Siscoe Mine, Val d’Or District, Abitibi Subprovince, Canada: Structural, Mineralogical and Fluid Inclusion Evidence. Economic Geology , v. 97, p. 929-947.

11. Olivo, G.R., Gauthier, M., Williams-Jones, A.E., Levesque, M. (2001). The Au-Pd Mineralization at the Conceição Iron Mine, Itabira District, Southern São Francisco Craton, Brazil: An example of a “jacutinga-type” deposit. Economic Geology, v. 96, p. 61-74.

10. Williams-Jones, A.E., Samson, I., Olivo, G.R (2000). The Genesis of Hydrothermal Fluorite-REE Deposits in the Gallinas Mountains, New Mexico. Economic Geology,v.95, p. 327-342.

9. Olivo, G.R. and Williams-Jones, A.E. (1999). Hydrothermal REE-rich eudialyte from the Pilanesberg Complex, South Africa. Canadian Mineralogist, v. 37 p. 653-663.

8. Olivo, G.R.and Gammons, C.H. (1996).Thermodynamic and textural evidence for at least two stages of Au-Pd mineralization at the Cauê Iron Mine, Itabira District, Brazil. Canadian Mineralogist, v. 34, p. 547-557.

7. Olivo, G.R., Gauthier, M., Gariépy, C., and Carignan, J. (1996). Transamazonian tectonism and Au-Pd mineralization at the Cauê Mine, Itabira District, Brazil: Pb isotopic evidence. Journal of South American Earth Sciences, v. 9, p. 273-279. 

6. Olivo, G.R.and Gauthier, M. (1995). Palladium minerals from the Cauê iron mine, Itabira District, Minas Gerais, Brazil. Mineralogical Magazine, 59, p. 457-465. 

5. Olivo, G.R.,Gauthier, M., Bardoux, M., Leao De Sa, E., Fonseca, J.T.F. and Santana, F.C. (1995). Palladium-bearing gold deposit hosted by Proterozoic Lake Superior-type iron-formation at the Cauê iron mine, Itabira District, Southern Sao Francisco Craton, Brazil: geologic and structural controls: a replyEconomic Geology,90, p. 2372-2374

4. Olivo, G.R.,Gauthier, M., Bardoux, M., Leao de Sa, E., Fonseca, J.T.F., Santana, F.C. (1995). Palladium-bearing gold deposits hosted by Proterozoic Lake Superior-type iron-formation at the Cauê Iron Mine, Itabira District, Southern Sao Francisco Craton, Brazil: geologic and structural controls. Economic Geology, v. 90, p. 118-134.

3. Olivo, G.R.,Gauthier, M., and Bardoux, M. (1994). Palladian gold from the Cauê Iron Mine, Itabira District, Minas Gerais, Brazil. Mineralogical Magazine, 58, p. 579-587.

2. Michel, D., Giuliani, G.,Olivo, G.R.and Marini, O.J. (1994). As-growth bandings in pyrites from the Santa Rita gold vein occurrence hosted in Proterozoic metasediments (Goiás State, Brazil). Economic Geology,89: 193-200

1. Giuliani, G., Olivo, G.R, Marini, O.J., Michel, D. (1993). The Santa Rita gold deposit in the Proterozoic Paranoá Group, Goiás, Brazil: an example of fluid mixing during ore deposition. Ore Geology Reviews,v. 8, p. 503-523.

Articles in advanced stage of preparation to be submitted to refereed journals:

Moura, M., Olivo, G.R, Botelho, N.,., Kyser, K., and Archibalt, D.: Petrological, fluid inclusion and isotopic investigation of the Mangabeira Tin-Indium Mineralization, Goiás Tin Province, Brazil: implications to ore genesis.

Olivo, G.R., Findley, A., Godin, L., and Archibalt, D. The Miguel Auza Ag-rich polymetallic epithermal deposit, Zacatecas, Mexico: structural, mineralogical and geochronological constraints

Chouinard, A., Olivo, G.R., Poirier, G., Weakly, C., Leonardson, W. R.: Variation in the Composition of Pyrite at the Goldstrike Property, Carlin Trend Nevada: from diagenesis to post-ore hydrothermal events and implications to mechanisms of trace elements incorporation in pyrite

Chouinard, A., Olivo, G.R., Poirier, G., Weakly, C., Leonardson, W. R.: Spatial Variation in the Composition of Pyrite at the Goldstrike Property, Carlin Trend Nevada: Implications for the Genesis and Exploration of Carlin-Type Deposits.

Almeida, C.M. and Olivo, G. R.:  Paragenesis and Mineral Chemistry of Sphalerite from Carlin-type deposits.

Almeida, C.M. and Olivo, G.R.: Rare PGE-bearing minerals from the Fortaleza de Minas deposits: composition and structure

Dobosz, A, Olivo, G.R., Pratt, A., R. Feng: Integrated Approach Using Electron Microprobe, SIMS and VESPERS XRF and Laue Diffraction Analyses to Determine the Variation In Composition and Structure of Trace Element-Rich Gold-Bearing Pyrite From Carlin-Type Deposits

Marsden, S., Olivo G.R.: Temporal and Spatial distribution of the various hydrothermal and auriferous zones in the Gold Eagle deposit, Red Lake, Canada

Slezak, P., Olivo, G.R., Diniz-Oliveira, G., Dardenne, M.A.; Genesis of the North Extension Vazante Silicate Zinc Deposit, Brasília Fold Belt, Brazil: structural, mineralogical and geochemical evidence.

Papers in refereed conference proceedings:

Olivo, G.R., Archibald, D., Ullrich D (2011): 40Ar/39Ar Evidence for the Brasiliano (ca. 500 Ma) Tectono-Thermal Event in the Southern Margin of the São Francisco Craton: Implications for the Remobilization and Preservation of Gold-PGE Deposits Hosted in the Minas Supergroup Iron-Formation. 11th Biennial SGA Meeting of the Society for Geology Applied to Mineral Deposits, Antofogasta, Chile 26-29 September, 2011, 3 pages

Slezak, P., Olivo, G.R., Diniz-Oliveira, G., Dardenne, M. A (2011): Hypogene zinc-silicate mineralization in the Northern Extension of the Vazante Mine, Minas Gerais, Brazil: 11th Biennial SGA Meeting of the Society for Geology Applied to Mineral Deposits, Chile, 26-29 September, 2011, 3 pages

Kitney, K., Olivo, G.R., Davis, D., Desrocher, J-P, Tessier, A. (2010). Structural, Mineralogical, Geochemical and Geochronological Investigation of the Barry Gold Deposit, Abitibi Subprovince, Canada: Precisely Dated Greenstone-Hosted Mineralization Coeval with Late Archean Deformation and Magmatism: 10th Biennial SGA Meeting of the Society for Geology Applied to Mineral Deposits, August 17-20, 2009: Smart Science For Exploration And Mining, Vol 1 and 2   Pages: 288-290-  Best Student Presentation Award

Moura, M. A.; Botelho, N. F.; Souza, V. DA S., Olivo, G. R.; Kyser, T. K. (2005) Características isotópicas e de inclusões fluidas dos greisens e veios mineralizados do depósito de estanho do Bom Futuro (RO) e implicações metalogenéticas. In: I Simpósio Brasileiro de Metalogenia, 2005, Gramado. 4p. CD Rom, with Symposium Proceedings.

Moura, M. A.; Santana, M. U. ; Bothelho, N. F. ; Kyser, T. K. ; Olivo, G. R. (2005) Inclusões fluidas e isótopos estáveis da mineralização do tipo Au-Cu Pórfiro no Setor La Unión, Camaguey, Cuba. In: I Simpósio Brasileiro de Metalogenia, 2005, Gramado. 2005. 4p. CD Rom, with Symposium Proceedings.

Olivo, G.R. (2003),Hydrothermal Au-Pd Deposits hosted by Proterozoic, Lake Superior-type Iron-formation in the Itabira District, Brazil Canadian Institute of Mining and Metallurgy Symposium Iron Ore and Related Deposits Symposium, Montreal, May 4-7, 2003, 20p. Papers cd (Invited Speaker)

Olivo, G.R., Williams-Jones, Gariépy, C. and Isnard, H. (2000). Pb isotopic investigation of hydrothermal pyrite from the auriferous quartz-tourmaline vein of Siscoe Mine, Val d’Or, Quebec. GeoCanada 2000, 4 p.

Williams-Jones, A.E., Samson, I. M., Olivo, G.R., Mueller, B. (1997). Hydrothermal REE and fluorite mineralization in the Gallinas Mountains, New Mexico, USA.  4th SGA  Meeting, Turku, Finland, August 11-13 p. 687-690 .

Olivo, G.R., Gauthier, M., Bardoux, M., Leão de Sá, E., Fonseca, J.T.M., Santana, F.C. (1993). A Mina de Cauê: deformação e controle estrutural da mineralização aurífera. Simpósio sobre o Craton São Francisco, II, Proceedings, p. 359-361.

OlivoG.R., Marini, O.J., and Giuliani, G. (1991). Hydrothermal gold occurrences hosted by middle to upper Proterozoic carbonate sequence: The example of Santa Rita Prospect, Goiás, Brazil. In: Brazil Gold'91: An international symposium on the geology of gold (ed. E.A.Ladeira), Belo Horizonte1991, A.A. Balkema, Rotterdam: p. 339-342.

Giuliani, G., OlivoG.R., Marini. O.J., Dubessy, J., and Michel, D. (1991). CO2-N2-hypersaline-bearing fluids associated to the Santa Rita hydrothermal gold occurrences Paranoá Group (Goiás-Brazil). Plinus, 5: 91-92.

Giuliani, G., Fortes, P.T.F.O., OlivoG.R., Nilson, A.A., Dardenne, M.A., Ronchi, L.H., Santos, M.M. and Marini, O.J. (1991). Contrasting Archean-Proterozoic-hosted gold deposits: types and associated gold-bearing fluids. In: Source, Transport and Deposition of Metals (ed. Papel & Leroy), Balkema, Rotterdam, p. 665-668.

OlivoG.R. and Marini, O.J. (1988). Ouro no Grupo Paranoá: distribuiçao, contrôle e tipos das ocorrências. In:Congresso Brasileiro de Geologia, 35, Belém, Proceedings, Vol. 1: 93-106.

Abstracts in refereed conferences (mainly) and others (indicated):

Dobosz, A., Olivo, G. R., Pratt, A. (2011). VESPERS XRF and Laue Diffraction Mapping of Carlin-Type Auriferous Arsenian Pyrite: Goldschmidt Conference, 2011, Prague, Czech Republic, August 14-19, 2011 (accepted for oral presentation).

Almeida,C.M and Olivo, G.R. (2011): Mechanisms of precipitation of auriferous pyrite in the Carlin-type deposits: pyritization vs sulfidation. 13th Brazilian Geochemical Congress and III Geochemical Congress of Mercosul countries, Gramado, RS, October 9-14, 2011 9 (accepted oral presentation).

Marsden, S and Olivo, G. R. (2011): Geology and Hydrothermal Alteration of the Gold Eagle Deposit: A New Discovery in the Red Lake Camp, Canada. Canadian Mining and Metallurgy Institute Conference, Montreal

Olivo, G.R., Almeida, C., Chouinard. A. (2009). The sources of gold and associated elements in Carlin-type deposits, Northern Nevada, USA: Lithogeochemistry and mineral chemistry constraints: Goldschimidt Conference 2009, Davos, Switzerland. In  Geochimca et Cosmochimica Acta,  Vol 73, p. A970

Findley, A, Olivo, G.R., and Godin, L. (2009). The genesis of the Precious and Base Metal Mineralization at the Miguel Auza Deposit, Zacatecas, Mexico, AGU-GAC-MAC Joint-Meeting, Toronto, EOS Trans. AGU, 90 (22), Jt. Assem., suppl. B13B-06.

Kitney, K., Olivo, G.R., Davis, D.W., Desrochers, J-P., Tessier, A. (2009). Gold Mineralization Coeval with Late Archean Syn-Collisional Magmatism in the Urban-Barry Greenstone Belt, Southern Abitibi, Quebec, Canada: U-Pb Geochronology Constraints. AGU-GAC-MAC Joint-Meeting, Toronto, EOS Trans. AGU, 90 (22), Jt.  Assem., suppl. GA31B-03

Olivo, G.R. (2008). World-Class Gold Deposits Hosted by Sedimentary Rocks. 3nd Brazilian Symposium on Mineral Exploration- SIMEXMIN, Ouro Preto- MG, Brazil, May 18-21, 2008. Invited Speaker

Cloutier, J. Kuser, K. Olivo, G.R., Alexandre, P. (2008) The Millenium Uranium Deposit, Athabasca Basin, Saskatchawan, Canada: insights into an atypical basement-hosted Uranium Deposit. In Geological Association of Canada-Mineralogical Association of Canada Joint Meeting, Quebec, Program with Abstract cd SY:3, May 2008 (oral presentation)

Grant, H. L. J., Layton-Matthews, D., Peter, J. M., Olivo, G. R., Kim, D. (2008) Silver enrichment in the 2.68 Ga Hackett River volcanogenic massive sulphide (VMS) deposits, Hackett River Greenstone Belt, Nunavut, Canada: Mineral Deposits Studies Group UK (MDSG) January 2008 (poster)

Olivo G., Chang, F., Williams-Jones, A.,E. and Hughes, K.A. (2007) Evolution of the lode gold deposits in the Val d’Or district, Southern Abitibi, Canada: structural, alteration, mineralogical, isotopic and fluid constraints. CIM conference, Montreal, 2007 (Invited Speaker)

Olivo, G.R. and Machado, N. (2006).  Summary of the Symposium on Precambrian Evolution and Mineral Deposits of the Canadian and Brazilian Shields: Similarities and Differences: sponsored by the Mineral Deposit Division of the Geological Association of Canada, CAMECO and the Local Organizing Committee and held during the GAC-MAC joint meeting in Montreal from May 14 – 16, 2006. Gangue, October issue, 2006, 4 pages

Mitchell, F.M.; Godin, L.; and Olivo, G.R. 2006. Multiple brittle deformation events recorded along Grenvillian shear zones: implications for seismic risk. POLARIS Ontario (POLO) research workshop 2006, Ottawa Multiple brittle deformation events recorded along Grenvillian shear zones; implications for seismic risk: Conference   2006 annual meeting of the Eastern Section of the Seismological Society of America, Ottawa, ON, Canada, Oct. 1-4, 2006 : Seismological Research Letters, vol. 78, no. 1, pp.168-169, Feb 2007. (Prize: Best poster award)

Olivo, G.R., Archibald, D. A., Ullrich, T. (2006). Tectonic Evolution and Timing of Pd-Au Mineralization in the Itabira District, Southern Sao Francisco Craton, Brazil: insights from Ar-Ar Geochronological Data. In Geological Association of Canada-Mineralogical Association of Canada Joint Meeting, Montreal, Program with Abstract cd and p. 112, May 2006 (oral presentation) .

Moura, M., Olivo, G.R., Archibald, D. A., Bothelho, N. (2006). Ar-Ar Geochronological Evidence of Brasiliano-Pan African Orogenesis overpriting the Goias Tin-Bearing Granitic Province, Central Brazil. In Geological Association of Canada-Mineralogical Association of Canada Joint Meeting, Montreal, Program with Abstract cd and p. 106, May 2006 (oral presentation) .

Lapointe, U. Boyer, L. Olivo, G.R., Archibald, D.A., Grant, J. W. (2006). Mineralogy and Lithogeochemistry of Mafic Units from the Archean Kidd Creek Volcanic Complex, Southern Abitibi Greenstone Belt, Canada, and Its Implication for Base Metal Exploration. In Geological Association of Canada-Mineralogical Association of Canada Joint Meeting, Montreal, Program with Abstract cd and p. 83, May 2006 (poster) .

Mitchell, F.M., Godin, L., Olivo, G.R. (2006) Neotectonic Evaluation of Brittle Features Affecting Grenvillian Shear Zones, Southern Ontario. In Geological Association of Canada-Mineralogical Association of Canada Joint Meeting, Montreal, Program with Abstract cd and p. 103, May 2006 (poster).

Pitcairn, I.K., Olivo, G.R., Teagle, D.A.H., Craw, D. (2006), Sources of metals in orogenic gold deposits: mineralogical evidence from the Otago and Alpine Schists, New Zealand: 29th AGM of the Mineral Deposits Studies Group, Imperial College and The Natural History Museum, London, 4th-6th January

Mitchell, F.M., Godin, L. & Olivo, G.R. (2005). Brittle deformation of Grenvillian structures in Southeastern Ontario. Annual Continental Tectonics Group Workshop, Orillia, Canada.

Almeida, C. M. and Olivo, G.R(2005). The Hydrothermal Ni-Cu-PGE Sulfide Ore of the Fortaleza de Minas Deposit, Brazil. In Goldschmidt Conference, Idaho, May 20-25, 2005 (Abstract, oral presentation)

Olivo, G.R. and Hughes, K.A. (2004) The two distinct types of auriferous veins in the Val d’Or district, Southern Abitibi, Canada: structural, alteration, mineralogical and fluid constraints. 32th International Geological Congress, Florence, August 20-28, 2004 (oral presentation)

Bursztyn, N. and Olivo, G.R. (2004) Hydrothermal platinum-group minerals associated with Ni-Cu sulfide mineralization at the McBratney occurrence, Flin Flon Greenstone Belt, Manitoba :32th International Geological Congress, Florence, August 20-28, 2004  (oral presentation)

Moura, M. A. ; Botelho, N. F. ; Olivo, G. R. ; Kyser, T. K. ; Pontes, R. M.  (2004) Fluid geochemistry and evolution of the Mangabeira topaz-albite granite and related tin-indium mineralization (Goiás, Brasil). In: XLII Congresso Brasileiro de Geologia, 2004, Araxá. XLII Congresso Brasileiro de Geologia.Araxá : SBG - Núcleo Minas Gerais, 2004. p.700-701 

Botelho, N.F.; Moura, M.A.; Olivo, G.R.; Kyser, T.K.; Teixeira, L.M.; Cunha, L.M.; Santana, M.U (2004). Tipologia do depósito de Cu, (Au, Mo, W e Sn) do Breves, Carajás. I Simpósio de Exploração Mineral, Anais. Adimb: Ouro Preto, Brazil, May 17- 19, 2004. (poster)

Bursztyn, N. and Olivo, G.R. (2004) McBratney PGE-Au occurrence hosted in a mafic-ultramafic sequence of the Flin Flon greenstone belt, Manitoba: petrogenetic characterization and ore mineralogy: Geological Association of Canada-Mineralogical Association of Canada Joint Meeting, St. Catharines Program with Abstract cd, May 2004 (oral presentation) (Contributed in the field work, petrological, geochemistry and mineralogical investigation and in the generation of the model; supervisor)

Moura, M.A.Olivo, G.R; Kyser, K; Botelho, NF;  Pontes, R (2004). The Proterozoic Mangabeira Sn-In mineralization, Central Brazil: geological and geochemical characterization. Geological Association of Canada-Mineralogical Association of Canada Joint Meeting, St. Catharines, Program with Abstract cd, May 2004 (oral presentation)

Sterrit, V.A. and Olivo, G.R. (2004). Petrographic and mineralogic investigations of the Doris and Madrid gold deposits, Hope Bay greenstone belt, Slave Structural Province, Nunavut : Geological Association of Canada, Mineralogical Association of Canada; joint annual meeting; abstracts-St. Catherines, ON, Canada, May 12-14, 2004, p. 380

Houle, M.Y and Olivo, G.R (2004). Lithogeochemistry and Alteration of Host Rocks at the High Lake VMS Deposit, Nunavut. In 32nd Annual Yellowknife Geoscience Forum, November 18-18, 2004.

Almeida, C. M., Carvalho, S.G and Olivo, G.R. (2004) Hydrothermal PGE-rich mineralization associated with the magmatic Ni-Cu sulphide orebodies hosted by the Fortataleza de Minas Komatiitic Sequence of the São Francisco craton, Brazil. 32th International Geological Congress, Florence (poster)

Olivo,G. R. (2003,) Hydrothermal Pd-Au Deposits Hosted by Proterozoic, Lake Superior-Type Iron-Formation in the Itabira District, Brazil. Canadian Institute of Mining and Metallurgy Symposium on Iron Ore and Related Deposits, Montreal, Program with Abstracts-cd. (invited speaker; Montreal May 2003)

Chang, F, Olivo,G.R. and Kyser, T.K. (2003). Characterization of Auriferous and Barren North Dipper Veins at the Sigma Mine, Val d’Or, Quebec, Based on Structural, Mineralogical, Fluid Inclusion and Isotope Results. Geological Association of Canada and Mineralogical Association of Canada Joint Meeting, Vancouver, Program with Abstracts (cd) (oral presentation)

Daubeny, P. and Olivo,G.R. (2003). Geology, Chemo-Stratigraphy and Exploration Vectoring for Volcanic-hosted Massive Sulphide Deposits on the San Antonio Concession, Dominican Republic. Geological Association of Canada and Mineralogical Association of Canada Joint Meeting, Vancouver, Program with Abstracts (cd) (oral presentation)

Dilworth, K.M. and Olivo, G.R. (2001). Evidence of pre-metamorphic gold mineralization at the Campbell Mine, Balmertown, Northwestern Ontario: the inverstigation of the West Drift Dyke. Geological Association of Canada and Mineralogical Association of Canada Joint Annual Meeting, Program with Abstracts, v.23, A-138 (presented results of K. Dilworth’s Honours Thesis). (poster)

Olivo, G.R. and Gammons, C.H (2000). Palladium and gold remobilization during supergene alteration of the jacutinga ore in the Itabira District, Minas Gerais, Brazil. 31st International Geological Congress, Rio de Janeiro, Brazil. (invited oral presentation and poster)

Olivo, G.R. and Williams-Jones, A.E. (1998). Paragenesis and mineral chemistry of tetradymite and gold alloys from the auriferous 'C' quartz-tourmaline vein of the Siscoe Mine, Val d'Or district, Quebec. Geological Association of Canada and Mineralogical Association of Canada Joint Annual Meeting, Program with Abstracts, v.23, A-138. (oral presentation)

Olivo, G.R. and Williams-Jones, A.E. (1997). Mineral Chemistry and Origin of REE-rich eudialyte from the Pilanesberg Complex, South Africa. Geological Association of Canada and Mineralogical Association of Canada Joint Annual Meeting, Program with Abstracts, v. 22, p. A-110. (poster)

Samson, I.M., Williams-Jones, A.E., Olivo, G.R. (1997). Genesis of the Gallinas Mountains REE-fluorite Deposits, New Mexico: evidence from mineral paragenesis and fluid inclusions. Geological Association of Canada and Mineralogical Association of Canada Joint Annual Meeting, Program with Abstracts, v. 22, p.A-130. (poster)

Kerr, I.D., Samson, I.M., Olivo, G.R., Williams-Jones, A.E. (1996). Mineralogic and paragenetic studies of the Rock Canyon Creek F-Ba-REE deposit, Bristish Colombia. Geological Association of Canada and Mineralogical Association of Canada Joint Annual Meeting, Program with Abstracts, V. 21, p. A-49. (poster)

Jebrak, M., Yushei, L., Bellehumeur, C., Olivo, G.R. (1995). Contexte tectonique des minéralisations de type Olympic Dam (Cu-Au-U): de Australie à la Basse-Côte-Nord.  Séminaire d’information sur l'exploration géologique et minérale (16 e édition), Ministère des Ressources Naturelles du Québec, Programmes et Résumés: p. 8. (oral presentation)

Olivo, G.R., Gauthier, M., Gariépy, C., Carignan, J. (1995). Epigenetic palladium-bearing gold deposits hosted by Lake Superior-type iron-formations in the Southern Sao Francisco Craton, Brazil. In Precambrian 95, Program with Abstracts, p. 149. (oral presentation)

Olivo, G.R. and Gauthier, M. (1993). Mineralogy of palladium-bearing gold deposits hosted by a Lake Superior-type iron-formation, Cauê Mine, Sao Francisco Craton, Brazil. Geological Society of America Annual Meeting, Program with Abstracts, Boston, October, 1993, p. A-276. (oral presentation)

Olivo, G.R., Gauthier, M., Bardoux, M., Leão de Sá, E., Borges, N., and Santana, F.C. (1993). Palladium-bearing gold deposits hosted by a Lake Superior-type iron-formation, Itabira Iron District, Minas Gerais, southeast Brazil. Geological Association of Canada and Mineralogical Association of Canada Joint Annual Meeting, Program with Abstracts, Edmonton, May, 1993, p. A-79. (oral presentation)

Olivo, G.R., and Marini, O.J. (1989). Gold occurrences in the Middle to Upper Proterozoic Metasediments in Central Brazil. In. International Congress Gold, Toulose, France, Abstracts, p. 14.(oral presentation)

Invited presentations in thematic symposia and workshops:

Olivo, G.R. (2010). The World-Class Carlin Type Deposits at the Goldstrike Property, Nevada. 4nd Brazilian Symposium on Mineral Exploration- SIMEXMIN- Society of Economic Geologists-SEG, Ouro Preto- MG, Brazil, May 23-26, 2010.

Olivo, G.R. (2008). World-Class Gold Deposits Hosted by Sedimentary Rocks. 3nd Brazilian Symposium on Mineral Exploration- SIMEXMIN, Ouro Preto- MG, Brazil, May 18-21, 2008.

Olivo, G. (2007). Evolution and Metallogenesis of Southern Abitibi Greenstone Belt with Emphasis on Gold Deposits: Sociedade Brasileira de Geology Meeting, Universidade de Brasilia, June 28, Brasilia, Brazil.

Olivo G., Chang, F., Williams-Jones, A.,E. and Hughes, K.A et al. (2007) Evolution of the lode gold deposits in the Val d’Or district, Southern Abitibi, Canada: structural, alteration, mineralogical, isotopic and fluid constraints. CIM conference, Montreal,  May 2007

Olivo, G.R. (2006). Comparison between Brazilian and Canadian Mineral Resources: Applications to Mineral Deposit Exploration Strategies. 2nd Brazilian Symposium on Mineral Exploration- SIMEXMIN, Ouro Preto- MG, Brazil, May 21-24, 2006.

Olivo, G.R. (2003). Genesis of auriferous quartz-tourmaline veins at the Siscoe mine in the Val d’Or district: connection with S-type magmatism? 3rd Annual Workshop in Mineral Exploration: Gold Exploration. Society of Economic Geology Student Chapter, Mineral Exploration Research Centre, Laurentian University, April 26-28, 2003 (invited speaker)

Olivo, G.R. (2001). Banded Iron-Formation Hosted PGE-Au deposits. 2nd Annual Workshop in Mineral Exploration: PGE Exploration. Society of Economic Geology Student Chapter, Mineral Exploration Research Centre, Laurentian University, April 26-28, 2003  (invited speaker)

Symposium Summary:

Olivo, G.R. and Machado, N. (2006).  Summary of the Symposium on Precambrian Evolution and Mineral Deposits of the Canadian and Brazilian Shields: Similarities and Differences, sponsored by the Mineral Deposit Division of the Geological Association of Canada, CAMECO and the Local Organizing Committee and held during the GAC-MAC joint meeting in Montreal from May 14 – 16, 2006. Gangue, October issue, 2006, 4 pages.

Selected Government Reports:

Olivo, G.R., Theyer, P. and Bursztyn, N. (2002). GS-32-Platinum group element investigations in the Flin Flon greenstone belt: petrography and mineralogy of the McBratney Lake PGE-Au occurrence (NST 63K13) Manitoba. In Report of Activities 2002, Manitoba Industry Trade of Mines, Manitoba Geological Survey –p. 94-99.

Olivo, G.R. (1995). Preliminary evaluation of the mineral potential of the Vasson Property based on geology, geochemistry and geophysical data. Ministère des Ressources Naturelles. 15 p (in French).

Olivo, G.R. (1994). Detailed mapping, structural controls and evaluation of the Siscoe Property, Val d'Or region, Québec. Ministère des Ressources Naturelles. 68 p (in French).

Contributions to industrially relevant research and development

Selected reports:

Slezak, P. and Olivo G.R. (2011). Progress Report on the Petrographic Investigation of the North Extension Vazante Mine Hydrothermal Alteration and Mineralization, Presented to Votoratim Metais, 12p.

Slezak, P., and Olivo G.R.(2011). Field Report of the North Extension Vazante Mine, Brazil (Mapping, Drill-Hole Logging and Sampling. Presented to Votoratim Metais, 29 p.

Marsden, S. and Olivo G.R. (2010): Progress report on the research of the Gold Eagle Deposit, Red Lake, Ontario, 16 p.

Findley, A., Olivo, G.R. and Godin, L. (2008). Progress Report on the Study of the Miguel Auza polymetallic Deposit, Mexico. Presented to Silver Eagle Mines, 132 p.

Almeida, C. and Olivo, G.R. (2008) Mineral Alteration, Paragenesis and Metal Zoning at Goldstrike Property Carlin-type Gold Deposits: implications to genesis and exploration, 78p.

Olivo, G.R. (2008) Preliminary Mineralogical Study on Ni-Laterite, Presented to Kingston Processing Metallurgy. Presented to KPM, 19p.

Kitney, K., and Olivo, G. (2008). Progress Report on the Paragenesis and Lithogeochemistry Investigation of the Barry Gold Deposit, Quebec.  Presented to Murgor Resources, 98 p.

Olivo, G.R(2007) Preliminary Mineralogical Study of Fe-Ti concentrates, Presented to Kingston Processing Metallurgy, 7p.

Kitney, K., and Olivo, G. (2007). Progress Report on the Investigation of the Barry Gold Deposit, Quebec.  Presented to Murgor Resources, 58p.

OlivoG.R (2006). Preliminary Textural and Mineral Chemistry Studies of the Hackett River Ag-bearing minerals: Presented to Kingston Processing Metallurgy and Sabina Silver Coorporation, 39p.

Almeida, C. and Olivo G.R. (2006). Lithogeochemical Investigation at the Goldstrike Property, Nevada: Betze-Post and Screamer deposits: Preliminary result, 237 p. Presented to Barrick Gold. (I am involved in all aspects of this project, providing training during field and laboratory work and contributing to the interpretations)  (Q & I=Barrick)

Chouinard, A., Olivo, G.R and Poirier, G. (2006). Chemistry and Spatial Distribution of Trace Elements in the Auriferous Pyrite of the Goldstrike Property, 235 p. (I am involved in all aspects of this project, providing training during field and laboratory work and contributing to the interpretations)  (Q & I=Barrick)

Chouinard, A., Olivo, G.R and Poirier, G. (2005). Variations in compositions of the pyrite from the main auriferous event at Goldstrike property.

Chouinard, A., Olivo, G.R and Poirier, G. (2005). Analytical Method and Preliminary Mineralogy and Petrography of Fe-Sulphides for the Betze-Post Area of the Goldstrike Deposit, Nevada. Presented to Barrick Gold, 33p.

Chouinard, A. and Olivo, G. R. (2004): Field report: Vectoring of the Goldstrike ore distribution using deposit scale sulfide chemistry signature with application to exploration and ore genesis - Presented to Barrick Gold, 13 p. (I am the supervisor of this project and participated in the field work and sampling on the Goldstrike property, Nevada).

Olivo, G.R.  (1999). Santo Toribio Project, Peru: petrographic studies, 68 p.

Olivo, G.R. (1997). Preliminary evaluation of the auriferous potential of iron formation horizons at the Pershing Property, Québec. 2946-2983 Québec Inc., 23 p.

Olivo, G.R. (1996). Procedure to detect amphibole under 0.1% in the Asbestos ore from the Jeffrey Mine. McGill University, EPS Internal Report, 9 p

Olivo, G.R. and Halter, W. (1996). Guide for utilization of gas chromatography on fluid inclusion studies. McGill University, EPS Internal Report, 47 p.

Olivo, G.R. (1995). Preliminary evaluation of the mineral potential of the Vasson Property based on geology, geochemistry and geophysical data.(for Roger Doucet Prospector; internal report) 15 p (in French).

Olivo, G.R. (1995). Preliminary evaluation of the mineral potential of the Mines Dynacor Inc. Property at Sakami Lake region, Québec, Mines Dynacor Inc. internal report., 30 p (in French).

Olivo, G.R. (1994). Detailed mapping, structural controls and evaluation of the Siscoe Property, Val d'Or region, Québec. Mines Dynacor. Inc. internal report, 68 p (in French).

Olivo, G.R. (1994). Siscoe Property: Field Trip Guide. Congrès de l'Association des Prospecteurs du Québec, 9 p. ( in French).

Olivo, G.R. (1994). Guiana Shield diamond occurrences and target selection (with maps). Golden Star internal report, 44 p.

Olivo, G.R. (1994). Synthesis of the Geology of the Guiana Shield (with maps). Golden Star internal Report, 68 p.

OlivoG.R.(1990). Target selection for diamond exploration in the Guiana Shield based on geological, geophysical and geochemistry data. SOPEMI-De Beers and Angloamerican internal report, 10 pages (in Portuguese).

OlivoG.R. (1990). Diamond occurrences in the Guiana Shield. SOPEMI-De Beers and Angloamerican internal report (with 1: 2 500 000 map), 26 p. (in Portuguese).

OlivoG.R. (1990). Continental extension models applied to Guiana Shield: preliminary comments. SOPEMI-De Beers and Angloamerican internal report, 44 p. (in Portuguese).

OlivoG.R. and Leite, A. (1990). Integration of geological and geophysical data (gravimetry and magsat) to the Guiana Shield. SOPEMI-De Beers and Angloamerican internal report, 5 p. (in Portuguese).

OlivoG.R. (1989). Precambrian geology of Ghana, Africa. SOPEMI-De Beers and Angloamerican internal report (in Portuguese).

OlivoG.R. (1989). Guiana Shield: text to explain the geological map in 1: 2 500 000 scale, in which the geology of Northern Brazil, Guiana, French Guiana, Suriname, Venezulela and Western Colombia were correlated by G. R. Olivo. SOPEMI-De Beers and Angloamerican internal report, 36 p. (in Portuguese).

OlivoG.R. (1989). Guiana Shield-geological synthesis. SOPEMI-De Beers and Angloamerican internal report, 13 p. (in Portuguese, with an English abstract).

OlivoG.R. (1989). Possibilities of diamond occurrences in Bolivia. SOPEMI-De Beers and Anglo-American internal report, 14 pages (in Portuguese, with English abstract).

Website

In construction


Back to Faculty Profiles page