Resume

Federico Cernuschi, Ph.D.

Calle 28 y 18Punta del Este, Uruguay.  (598) 91 440 977 fede@eclectic-rock.com

I am an independent consultant specializing in the geology and geochemistry of magmatic and hydrothermal processes, with a focus on porphyry deposits. Other deposit types include skarn, epithermal, orogenic gold, ortomagmatic nickel, and anorogenic intrusions. In my work, I integrate classic hand-lens observations and Anaconda-style mapping with trace element geochemistry, spectroscopy, petrography, and Qemscan phase mapping. I provide continued support to First Quantum Minerals and services to companies like Rio Tinto, Fortescue, and several juniors. In these roles, I have worked on exploration projects of varied geology and age across more than 20 countries and have provided training to multiple global exploration teams. 

WORK EXPERIENCE

2009 – present –  Eclectic Rock ǀ Economic Geology and Geochemistry (independent consultant): Some of my clients include First Quantum Minerals, Rio Tinto, Fortescue, South32, Rex, CSA, Qatar Mining Sudan, Orosur, Andes Resources, Nevsun, Lumina Gold and Sol Gold.

2009 – 2015 –      Oregon State University, USA ǀ Research Assistant ǀ Porphyry geology and geochemistry.

2007 – 2009 –      Orosur Inc. ǀ Project geologist ǀ Exploration of mesothermal gold in Precambrian basement                          and REE in alkaline intrusions.

2004 – 2006 –      UdelaR, Uruguay ǀ Research assistant ǀ Precambrian geology and limestone mining.

CONSULTING EXPERIENCE

• Extensive fieldwork experience, including anaconda mapping, core logging, and integration with whole-rock compositional and hyperspectral data in a variety of porphyry, epithermal, ortomagmatic, and other types of deposits and prospects in Asia-Oceania (Papua New Guinea, Indonesia, Australia, Japan, Mongolia, Turkey, Kazakhstan), Africa (Namibia, Sudan), N. America (British Columbia – Canada), Alaska, Arizona, Nevada, Montana – USA), South and Central America (Peru, Chile, Argentina, Colombia, Ecuador, Panamá, Uruguay) and Europe (Serbia, Sweden, Finland). 
• Remote work, including whole-rock compositional and hyperspectral data integration, petrography, and Qemscan imaging across all continents.
• Comprehensive work done on several world-class deposits, including Haquira (Peru), Yerington (Nevada), Butte (Montana), Copper Creek (Arizona), Vendaval (Argentina), La Granja (Peru), Jebel Ohier (Sudan), Cukaru Peki (Serbia), Pribrezhny (Kazakhstan).

TEACHING OF WORKSHOPS

Field mapping of ore deposits at Yerington, Nevada, USA with Dick Tosdal and John Dilles

2012 and 2013: 7 days/each, OSU-MDRU.  

Anaconda-style mapping, core-logging, and porphyry geology:

2018: Orquideas, Ecuador (3 days, FQM-Lumina Gold), Panteria-Ronaldo, Peru (5 days, FQM).

2017: Haquira, Peru (3 days, FQM)

2016 – 2017: Jebel Ohier, Sudan (2 weeks, CSA Global, Qatar Mining Sudan)

Geology, Geochemistry, and spectroscopy of porphyry copper deposits (ioGAS, Leapfrog, and TSG):

2023: SGA conference, Zurich. (2 days, with István, Martón)

2022: FQM (5 days, Lima, Perú)

2020: Remote workshops (10 half days: Kazakhstan – Rio Tinto, Kazakhstan – Fortescue, Argentina -Fortescue).

            2019: Rio Tinto (4 days, Reading, UK). Fortescue (4 days, Orange, Australia). SEG2019 (1 day)

2018: Nevsun-Rakita (4 days, Serbia), Lumina Gold (4 days, Ecuador), Fortescue (4 days, Ecuador).

2017: FQM (4 days, Peru), CURE-Uruguay (3 days, University).

2016: CoreScan ^TM  (1 day: Chile Explore, Chile and1 day: Grupo Mexico, Mexico).

2013: UMG (5 days, Uruguay).

2012: FQM (3 days, Peru).

EDUCATION 

Oregon State University, USA ǀ 2015

Ph.D., Geology (fully sponsored by FQM INC.)

“The Geology and Geochemistry of the Haquira East Porphyry Copper Deposit of Southern Peru: Insights on the Timing, Temperature and Lifespan of the Magmatic-hydrothermal Alteration and Mineralization” advised by John H. Dilles. https://ir.library.oregonstate.edu/xmlui/handle/1957/57986

Oregon State University, USA ǀ 2011

MS, Geology (fully sponsored by Orosur Mining Inc.)

“Geology of the Lascano-East intrusive complex: magmatic evolution and mineralization potential of the Laguna Merin Basin, Uruguay”advised by John H. Dilles. https://ir.library.oregonstate.edu/downloads/xd07gw14v

University of the Republic, Uruguay ǀ 2006

BS, Geology

SELECTED PUBLICATIONS

Cernuschi, F., Dilles,  J. H., Osorio, J., Proffett, J. M., and Kouzmanov, K., 2023, A Reevaluation of the Timing and Temperature of Copper and Molybdenum Precipitation in Porphyry Deposits. Economic Geology 2023; 118 (5): 931–902. doi: https://doi.org/10.5382/econgeo.5032

Cernuschi, F., Dilles, J.H., Grocke, S. Valley, J., Kitajima, K. and Tepley, F. 2018. Rapid formation of porphyry copper deposits evidenced by diffusion of oxygen and titanium in quartz. Geology, 46(7), 611-614. https://pubs.geoscienceworld.org/gsa/geology/article/531975/Rapid-formation-of-porphyry-copper-deposits

Cernuschi, F., Dilles, J.H., Kent, A., Schroer, G., Raab, A., Conti, B. and Muzio, R. 2015. Geology, geochemistry and geochronology of the Cretaceous Lascano East intrusive complex and magmatic evolution of the Laguna Merin basin, Uruguay. Gondwana Research, 28, 2, 837-857.

SELECTED ABSTRACTS

Cernuschi, F., Gigola, S., Brownscombe, W., Ireland, T., Banyard, J., Arri- basplata, D., Schorr, J., Gonnet, P., Sosa, P., and Duran, M., 2023, Hydrothermal alteration chemistry and mineralogy of the Maricunga-style Vendaval Central Cu-Au porphyry [ext. abs.]: Society for Geology Applied to Mineral Deposits (SGA), Biennial Meeting, Zurich, August 28-September 1, 2023, Proceedings, 4 p. 

Cernuschi, F., Rivera, R., Dilles, J.H., Benavides, S., Kouzmanov, K., 2019. Mineralogical variation in early halo alteration selvages of porphyry copper deposits from North and South America. SEG 2019 Conference, Santiago, Chile.

Cernuschi, F., Dilles, J.H., Einaudi, M.T., Halley, S., Gans, P. & Kouzmanov, K. 2016. Hydrothermal Paragenesis and Mineralization of the Haquira East Porphyry Copper Deposit, Peru. Gordon Research Conference, Switzerland. 

Dilles, J., Halley, S., Tosdal, D. and Cernuschi, F. 2014. The Geochemical and mineralogic footprint of hydrothermal alteration at Butte, Montana. Abstract. GSA meeting, Vancouver, Canada.

Cernuschi, F., Ford, M., Boschmann, D., Dilles, J.H. and Conrey, R., 2013. Test of a user defined calibration in a portable XRF for lithogeochemistry applications. 12^th SGA biennial meeting, Uppsala, Sweden. 

ORGANIZED AND LEAD FIELD TRIPS

Porphyry Mo-deposits of Colorado (FQM, 2023), Greisens of SW-USA (FQM, 2019), Ore deposits of Montana and Idaho, USA (OSU-SEG-2014), Ore deposits of northern Namibia (OSU-SEG-2013), Precambrian of Uruguay (2018).

References: John Dilles (dillesj@geo.oregonstate.edu), Scott Halley (minmap@westnet.com.au), Tim Ireland (tim.ireland@fqml.com), , Mike Christie (mike.christie@fqml.com), Markku Lappalainen (markku.lappalainen@fqml.com), Ryan Bartlett (ryan.bartlett@riotinto.com