Personal information

Economic Geology, Ore geochemical characterization, Ore geochemical exploration
Chile

Biography

By training I am a geological engineer (Venezuela, 2003) with a Master's degree in Geochemistry (Venezuela, 2006) and a Ph.D. in Earth Sciences (Orogenic Gold Deposits - France, 2012). Extensive experience in university teaching and scientific research in Earth Sciences, attained during more than 10 years of work at the Central University of Venezuela and as head of the Geology department of the Earth Science Institute of this university (since 2014).
I have taught undergraduate courses on ore deposits, igneous and metamorphic petrology, and a graduate course in igneous petrogenesis. My research mainly focuses on the study of Paleoproterozoic orogenic gold deposits in South America and West Africa. I am interested in how and why native gold precipitates within sulphides in these settings, and my principal approach is detailed investigation of textural and crystallochemical relationships between gold and the associated metals and metalloids in the hosting sulphides. My field areas include the El Callao mining district, which is the most important gold-producing region in Venezuela (>2,000 tonnes Au), focusing on the Colombia deposit, the largest deposit in the district. I have also collaborated with the West African Exploration Initiative (WAXI) international project, which is focused on the mineral potential of the Leo-Man Craton of West Africa.
I collaborate with several Research Laboratories internationally, including the Géosciences-Environnement-Toulouse (GET) Laboratory, the G2R Laboratory (Nancy) and the Geoscience Laboratory (Montpellier), all in France and, in Australia, the Centre of Excellence in Ore Deposits (CODES) at the University of Tasmania and the Center for Exploration Targeting (CET) in Perth.

Activities

Employment (3)

Universidad de Concepción: Concepcion, Región del Bio-Bio, CL

2021-08-01 to present | Académico (Instituto de Geología Económica Aplicada)
Employment
Source: Self-asserted source
German Velasquez

Universidad de Chile Facultad de Ciencias Físicas y Matemáticas: Santiago, CL

2018-03-01 to 2020-02-01 | Associated Researcher (Advanced Mining Technology Center - AMTC )
Employment
Source: Self-asserted source
German Velasquez

Universidad Central de Venezuela: Caracas, Distrito Capital, VE

2006-09-01 to 2018-02-01 | Associate Professor (Earth Science Institute)
Employment
Source: Self-asserted source
German Velasquez

Education and qualifications (3)

Universite Paul Sabatier de Toulouse: Toulouse, Midi-Pyrinees, FR

2009-09-09 to 2012-11-15 | PhD, Earth Sciences (Laboratoire Géosciences Environnement Toulouse (GET))
Education
Source: Self-asserted source
German Velasquez

Universidad Central de Venezuela: Caracas, Distrito Capital, VE

2004-09-05 to 2006-07-05 | MSc, Geochemistry (Geochemical Department)
Education
Source: Self-asserted source
German Velasquez

Universidad de Los Andes: Merida, Mérida, VE

1998-03-01 to 2003-06-06 | B.Eng, Geological Engineering (Geological Engineering School)
Education
Source: Self-asserted source
German Velasquez

Works (16)

Gold in pyrite revisited: insights into remobilization during deformation using electron backscatter diffraction and LA-ICP-MS

Mineralium Deposita
2025-01-04 | Journal article
Contributors: Pascal Ouiya; Didier Béziat; Stefano Salvi; German Velásquez; Séta Naba; Arnaud Proietti
Source: check_circle
Crossref

REE + Y signatures of the Navay phosphate deposit, SW Venezuela: Seawater paleoredox conditions and diagenetic implications

Journal of South American Earth Sciences
2023-09 | Journal article
Contributors: Eduard Linares; German Velasquez; John Manrique; Jesús Monsalve; Salvador Lo Mónaco; Leonid Shumlyanskyy
Source: check_circle
Crossref

Enhanced elemental and mineralogical imaging of Cu-mineralized rocks by coupling mu-LIBS and HSI

Journal of Analytical Atomic Spectrometry
2022 | Journal article
Contributors: Sandoval-Munoz, Claudio; Velasquez, German; Alvarez, Jonnathan; Perez, Francisco; Velasquez, Marizu; Torres, Sergio; Sbarbaro-Hofer, Daniel; Motto-Ros, Vincent; Yanez, Jorge
Source: check_circle
Web of Science Researcher Profile Sync

Quantification of major and trace elements in fluid inclusions and gas bubbles by laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) with no internal standard: a new method

European Journal of Mineralogy
2021-06-02 | Journal article
Part of ISSN: 1617-4011
Source: Self-asserted source
German Velasquez

Metal-Selective Processing from the Los Sulfatos Porphyry-Type Deposit in Chile: Co, Au, and Re Recovery Workflows Based on Advanced Geochemical Characterization

Minerals
2020-06-11 | Journal article
Contributors: Germán Velásquez; Humberto Estay; Iván Vela; Stefano Salvi; Marcial Pablo
Source: check_circle
Crossref

Tracking Cobalt, REE and Gold from a Porphyry-Type Deposit by LA-ICP-MS: A Geological Approach towards Metal-Selective Mining in Tailings

Minerals
2020-01-28 | Journal article
Contributors: Germán Velásquez; Daniel Carrizo; Stefano Salvi; Iván Vela; Marcial Pablo; Agustín Pérez
Source: check_circle
Crossref

<i>In Situ</i> Analysis of Copper Alloys by Femtosecond Laser Ablation Inductively Coupled Plasma Mass Spectrometry: Constrains on Matrix Effects

American Journal of Analytical Chemistry
2018 | Journal article
Part of ISSN: 2156-8251
Contributors: Germán Velásquez; Anastassia Y. Borisova; Sandrine Baron; Luc Robbiola
Source: Self-asserted source
German Velasquez via Crossref Metadata Search

Control of Shear-Zone-Induced Pressure Fluctuations on Gold Endowment: The Giant El Callao District, Guiana Shield, Venezuela

Minerals
2018-09 | Journal article
Part of ISSN: 2075-163X
Contributors: German Velásquez; Stefano Salvi; Luc Siebenaller; Didier Béziat; Daniel Carrizo
Source: Self-asserted source
German Velasquez via Crossref Metadata Search

The Arsenic Fault-Pathfinder: A Complementary Tool to Improve Structural Models in Mining

Minerals
2018-08 | Journal article
Part of ISSN: 2075-163X
Contributors: Daniel Carrizo; Carlos Barros; German Velasquez
Source: Self-asserted source
German Velasquez via Crossref Metadata Search

The Paleoproterozoic Copper-Gold Deposits of the Gaoua District, Burkina Faso: Superposition of Orogenic Gold on a Porphyry Copper Occurrence?

Economic Geology
2017-01 | Journal article
Part of ISSN: 0361-0128
Contributors: Elodie Le Mignot; Luc Siebenaller; Didier Béziat; Anne-Sylvie André-Mayer; Laurie Reisberg; Stefano Salvi; Germán Velasquez; Catherine Zimmermann; Athanase Naré; Guy Franceschi
Source: Self-asserted source
German Velasquez via Crossref Metadata Search

Geological setting of the Wassa gold deposit, SW Ghana

Ore Geology Reviews
2016-10 | Journal article
Part of ISSN: 0169-1368
Contributors: Stéphane Perrouty; Mark W. Jessell; Yan Bourassa; John Miller; Daniel Apau; Luis A. Parra-Avila; Élodie Le Mignot; Germán Velásquez; Jérôme Ganne; Luc Siebenaller et al.
Source: Self-asserted source
German Velasquez via Crossref Metadata Search

The Pampe gold deposit (Ghana): Constraints on sulfide evolution during gold mineralization

Ore Geology Reviews
2016-10 | Journal article
Part of ISSN: 0169-1368
Contributors: Stefano Salvi; German Velásquez; John M. Miller; Didier Béziat; Luc Siebenaller; Yan Bourassa
Source: Self-asserted source
German Velasquez via Crossref Metadata Search

The Wassa deposit: A poly-deformed orogenic gold system in southwest Ghana – Implications for regional exploration

Journal of African Earth Sciences
2015 | Journal article
Part of ISSN: 1464-343X
Contributors: Stéphane Perrouty; Mark W. Jessell; Yan Bourassa; John Miller; Daniel Apau; Luc Siebenaller; Germán Velásquez; Lenka Baratoux; Laurent Aillères; Didier Béziat et al.
Source: Self-asserted source
German Velasquez via Crossref Metadata Search

Formation and Deformation of Pyrite and Implications for Gold Mineralization in the El Callao District, Venezuela

Economic Geology
2013 | Journal article
Part of ISSN: 0361-0128
Contributors: G. Velasquez; D. Beziat; S. Salvi; L. Siebenaller; A. Y. Borisova; G. S. Pokrovski; P. De Parseval
Source: Self-asserted source
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In Situ Determination of Au and Cu in Natural Pyrite by Near-Infrared Femtosecond Laser Ablation-Inductively Coupled Plasma-Quadrupole Mass Spectrometry: No Evidence for Matrix Effects

Geostandards and Geoanalytical Research
2012-03 | Journal article
Part of ISSN: 1639-4488
Contributors: German Velásquez; Anastassia Y. Borisova; Stefano Salvi; Didier Béziat
Source: Self-asserted source
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First occurrence of Paleoproterozoic oceanic plateau in the Guiana Shield: The gold-bearing El Callao Formation, Venezuela

Precambrian Research
2011-04 | Journal article
Part of ISSN: 0301-9268
Contributors: Germán Velásquez; Didier Béziat; Stefano Salvi; Tommaso Tosiani; Pierre Debat
Source: Self-asserted source
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Peer review (5 reviews for 2 publications/grants)

Review activity for Minerals. (4)
Review activity for Sustainability. (1)