Research
Publications
(2023) D. Comte, G. Palma, J. Vargas, D. Calle-Gardella, M- Peña, S. García-Fierro, J. D´Andres, S. Roecker, S. Pichott. Imaging ore-forming fluids in porphyry copper deposits using local earthquake tomography. Scientific Reports, 13, 6812 (2023). https://doi.org/10.1038/s41598-023-33820-w
(2023) J. T. Ovalle, M. Reich, F. Barra, A. C. Simon, B. Godel, M. Le Vaillant, G. Palma, A. Deditius, G. Heuser, G. Arancibia, D. Morata. Fluid-assisted aggregation and assembly of magnetite microparticles in the giant El Laco iron oxide deposit, Central Andes. ACS Earth and Space Chemistry, XXXX, XXX, XXX-XXX, https://doi.org/10.1021/acsearthspacechem.3c00036
(2022) M. Reich, A. C. Simon, F. Barra G. Palma, T. Hou, L. Bilenker. Formation of iron oxide-apatite deposits. Nature Reviews Earth & Environment 3, 758–775. https://doi.org/10.1038/s43017-022-00335-3
(2022) I. Maureira, F. Barra, M. Reich, G. Palma. Geology of the Altamira and Las Luces deposits, Coastal Cordillera, northern Chile: Implications for the origin of stratabound Cu-(Ag) deposits. Mineralium Deposita, 58(5574). https://doi.org/10.1007/s00126-022-01132-0
(2022) J.T. Ovalle, M. Reich, F. Barra, A.C. Simon, A. Deditius, M. Le Vaillant, G. Palma, O.K. Neill, R. Romero, N.L. La Cruz, N. Román, M.P. Roberts, D. Morata. Magmatic-hydrothermal evolution of the El Laco iron deposit revealed by trace element geochemistry and high-resolution chemical mapping of magnetite assemblages. Geochemica et Consmochimica Acta, 330, 230-257. https://doi.org/10.1016/j.gca.2022.03.012
(2021) G. Palma, M. Reich, F. Barra, J.T. Ovalle, I. Del Real, A. Deditius, A. C. Simon. Thermal evolution of Andean Iron Oxide-Apatite (IOA) deposits as revealed by magnetite thermometry. Scientific Reports, 11, 18424 (2021). https://doi.org/10.1038/s41598-021-97883-3
(2020) G. Palma, F. Barra, M. Reich, A. C. Simon, R. Romero. A review of magnetite geochemistry of Chilean Iron Oxide-Apatite (IOA) deposits and its implications for ore-forming processes. Ore Geology Reviews, 2020, 103748
(2020) E. Salazar, F. Barra, M. Reich, A. Simon, M. Leisen, G. Palma, R. Romero, M. Rojo. Trace-element geochemistry of magnetite from the Cerro Negro Norte iron oxide-apatite deposit, northern Chile. Mineralium Deposita, 55, 409–428 (2020). https://doi.org/10.1007/s00126-019-00879-3
(2019) G. Palma, F. Barra, M. Reich, V. Valencia, A. Simon, J. Vervoort, M. Leisen, R. Romero. Halogens, trace element concentrations, and Sr-Nd isotopes in apatite from iron oxide-apatite (IOA) deposits in the Chilean Iron Belt: Evidence for magmatic and hydrothermal stages of mineralization. Geochimica et Cosmochimica Acta, 246, 515-540. https://doi.org/10.1016/j.gca.2018.12.019
(2017) F. Barra, M. Reich, D. Selby, P. Rojas, A. Simon, E. Salazar, G. Palma. Unraveling the origin of the Andean IOCG clan: a Re-Os isotope approach. Ore Geology Reviews, 81, 62-78, https://doi.org/10.1016/j.oregeorev.2016.10.016
Conferences
ONLY THOSE OF THE FIRST AUTHOR AND PRESENTER ARE INCLUDED.
Palma, G., Comte, D., Vargas, J., Calle-Gardella, D., Peña, M., Roecker, S., Pichott, S. (2023). High-resolution visualization of the deep-seated structures in porphyry copper deposits using local earthquake tomography. Third EAGE Workshop on Mineral Exploration in Latin America 9 & 10 November 2023, Santiago de Chile, Chile.
Palma, G., Comte, D., Vargas, J., Calle-Gardella, D., Peña, M., García-Fierro, S., D´ Andres, J., Roecker, S., Pichott, S. (2023). High-resolution visualization of the deep-seated structures beneath a porphyry copper system in northern Chile using local earthquake tomography. Congreso Geológico Chileno 2023, Santiago, Chile.
Palma, G., Reich, M., Barra, F., Ovalle, J.T., del Real, I., Simon, A.C. (2023). Reconstrucción de la evolución termal de los depósitos tipo magnetita-apatito chilenos mediante termometría de magnetita. Congreso Geológico Chileno 2023, Santiago, Chile.
Palma, G., Barra, F., Reich, M., Simon, A.C., Romero, R. (2021). Magmatic-hydrothermal ore-forming processes revealed by magnetite geochemistry of Chilean iron oxide- apatite (IOA) deposits. Goldschmidt virtual 2021.
Palma, G. (2016). Ore-forming processes revealed by magnetite geochemistry of Andean iron oxide-apatite (IOA) deposits”. Ore deposits Hub – Open Geoscience Talks on Ore Deposits.
Palma, G., Barra, F., Reich, M., Valencia, V., Simon, A.C., Vervoort, J., Romero, R., Leisen, M. (2019). Apatite geochemistry of iron oxide-apatite Kiruna-type deposits of northern Chile. South American Metallogeny: Sierra to Craton – SEG 2019 Conference, Santiago, Chile.
Palma, G., Barra, F., Reich, M., Valencia, V., Simon, A.C., Vervoort, J., Romero, R., Leisen, M. (2018). Halógenos, elementos traza e isótopos de Sr-Sm-Nd de apatitos de depósitos tipo magnetita-apatito (Kiruna) del norte de Chile: evidencias de etapas magmáticas e hidrotermales”. Congreso Geológico Chileno 2018, Concepción, Chile.
Palma, G., Barra, F., Reich, M., Valencia, V., Simon, A.C., Vervoort, J., Romero, R., Leisen, M. (2017). Apatite mineral chemistry from iron oxide-apatite deposits in northern Chile. AGU Fall Meeting 2017, New Orleans, USA.
Palma, G., Barra, F., Reich, M., Valencia, V., Simon, A.C. (2016). Apatite mineral chemistry from iron oxide-apatite deposits in northern Chile. (2016). Gordon Conference, Geochemistry of Mineral Deposits 2016, Les Diablerets, Switzerland.
Palma, G., Barra, F., Valencia, V., Reich, M., (2015). Química mineral de apatitos en depósitos tipo magnetita-apatito, norte de Chile. Congreso Geológico Chileno 2015, La Serena, Chile.
Scientific Projects
2024 – 2026: Researcher in Fondef IT23I0131: SOFIA: Seismic Tomography Platform using Artificial Intelligence. – Principal investigator: Dr. Diana Comte – Advanced Mining Technology Center (AMTC), FCFM, Universidad de Chile, Santiago, Chile.
2023 (1 year starting in september 2023): Researcher in Semilla AMTC project: Structural characterization and mineralogical correlation through the integration of geospatial data from the El Olivo mine, Til-Til – Advanced Mining Technology Center (AMTC), FCFM, Universidad de Chile, Santiago, Chile.
2023 (1 year starting in july 2023): Researcher in Semilla AMTC project: Imaging the sub-surface structures and Li-brines in the Salar de Atacama basin using local earthquake tomography – Advanced Mining Technology Center (AMTC), FCFM, Universidad de Chile, Santiago, Chile.
2022 – Ongoing: Postdoctoral researcher in FONDEF project “Seismic tomography: a complementary tool for mineral exploration”. Lead by Dr. Diana Comte – Advanced Mining Technology Center (AMTC), FCFM, Universidad de Chile, Santiago, Chile.
2021 – 2023: Collaborating researcher in Actinolite chemical and isotopic signature as a proxy for iron oxide-copper-gold (IOCG). Principal investigator: Dr. Irene del Real (Universidad Austral) – Fondecyt Postdoctoral.
2020 – 2024: Collaborating researcher in NSF-Iris-Pascal & AMTC: Trans ANdean Great Orogeny (TANGO).
2020 – 2021: Postdoctoral researcher in Thermal evolution of iron oxide-apatite deposits from northern Chile – Millennium Nucleus for Metal Tracing Along Subduction.
2015 – 2021: Ph.D. Research Scholar and Postdoctoral Researcher in Millennium Nucleus for Metal Tracing Along Subduction. Lead by Dr. Martin Reich – Department of Geology, FCFM, Universidad de Chile, Santiago, Chile.
2015 – 2020: Ph.D. Research Scholar in FONDECYT project “Metallogenesis of Mesozoic magmatic arc of Northern Chile; testing the IOCG connection using multiproxy geochemical approach”. Lead by Dr. Fernando Barra – Department of Geology, FCFM, Universidad de Chile, Santiago, Chile.
2015 – 2020: Ph.D. Research Scholar in project «Mineralogy and Geochemistry of Apatite and Magnetite in Iron Oxide-Apatite Deposits: Implications for Ore Genesis in the Andean IOCG Belt» – Millennium Nucleus for Metal Tracing Along Subduction.
2014 – 2015: Project Geologist in CORFO project “Automated Mineral Characterization of Drill Cores Using Advanced Hyperspectral Technology – HyloggerTM-3. Lead by Dr. Leandro Voisin – Advanced Mining Technology Center, Universidad de Chile & CSIRO, Australia.