Official Title: Visiting Academic

Faculty: Institute of Science and Environment


Short Bio

Ágata Dias holds a PhD in Geology, specializing in Mineralogy, Crystallography, and Metallogeny, as well as an MSc in Dynamic Geology. Her scientific interests encompass mineralogy, petrology, geochemistry, and marine geology, with a specific focus on deep-sea hydrothermal systems and ore deposits. Since 1996, she has actively participated in research projects related to deep-sea exploration and the study of mineralogy, geochemistry, and ore-forming minerals. Upon joining the ISE, she has also engaged in environmental projects.

In addition to her research activities, Ágata Dias has collaborated with various universities and research institutions worldwide. These include IFREMER in Brest, France; ETH in Zurich, Switzerland; NOC in Southampton, UK; the University of Bergen in Norway; FCUL in Lisbon, Portugal; GIGCAS and the State Oceanic Administration (SOA) in China, specifically the SIO (South China Sea Institute of Oceanology) and SIO (State Key Laboratory of Marine Geology). She has also participated in several scientific cruises. With over 20 years of academic experience, Ágata Dias worked as an assistant and auxiliary professor at ULHT and as an invited auxiliary professor at FCUL, both in Portugal, until she joined ISE-USJ in 2012.

Postdoctoral experience:

  • 2011-2012 Post-doc on the seafloor hydrothermal systems and associated ore deposits in the Portuguese EEZ and adjacent areas. CREMINER/LARSyS Laboratory of Robotics and Systems in Science and Engineering. FCT: SFRH/BPD/68648/2010

  • 2010-2011 Post-doc on the geochemistry and mineralogy of new Arctic deep sea Hydrothermal system. - Ultra-slow spreading and hydrogen-based deep biosphere Jan Myen and Loky’s Castle hydrothermal fields. H2deep project/ EUROCORES Program – EuroMARC - European Science Foundation (ESF) No. ERAS-CT-2003-980409 of the European Commission: EUROMARC/0001/2007/ H2DEEP

More info here:

ResearcherID/Publons: ABI-6221-2020 ; ORCID ID: 0000-0003-3026-7366 ; SCOPUS Author ID: 49061005200 ; Research Gate: Ágata A Dias; Ciência ID F318-B7C4-F8CC


  • SeaMin – InSituMin projectIn-situ trace elemental and isotopic constraints on modern seafloor massive sulfide mineralization – 现代海底块状硫化物成矿作用的原位微量元素和同位素限制 FDCT File No.: 0041/2021/A1, 2021-2024 (Principal Investigator)

  • SWIMAR – The role of ultramafic-hosted hydrothermal systems in the formation of seafloor deposits: comparison between SWIR and MAR fields/超基性岩系海底熱泉系統於海床熱液礦床扮演之角色:以 SWIR 及 MAR 熱泉系統相互比較為例. FDCT File No.: 002/2018/A1, 2018-2021 (Principal Investigator).

  • SMSMOR – Seafloor Massive Sulfides Resource along Mid-Ocean Ridges. InterRidge Working Group (team member)

  • Mag.I.C. – Petrology and Geochemistry of Igneous Rocks from Macao: Implications for the Crustal Evolution of Southern China. FDCT File No.: 043/2014/A1, 2015-2018 (Principal Investigator).

  • BLUE MINING – Breakthrough Solutions for the Sustainable Exploration and Extraction of Deep Sea Mineral Resources. FP7 (7th research framework programme), EU Research Projects. Proj. ref.: 604500, 2014-2018 (team member).



  • Ding T, Dias Á A, Wang J, Tan T, Liang J, Wu B, Tao C (2023) Serpentinization and its implications for ultramafic-hosted sulfide mineralization: a case study at the Tianzuo hydrothermal field, 63.5°E, Southwest Indian Ridge. Marine Geology. 106969:

  • Yang W, Tao C, Liao S, Liang J, Li W, Ding T, Dias Á A, Wang X, Wang L (in press) Record of hydrothermal activity in the Yuhuang hydrothermal field and its implications for the Southwest Indian Ridge: evidence from sulfide chronology. Acta Oceanologica Sinica.


  • Liao S, Tao C, Wen H, Yang W, Liu J, Jamieson JW, Dias Á A, Zhu C, Liang J, Li W, Ding T, Li X, Zhang H (2022) Hydrothermal remobilization of subseafloor sulfide mineralization along mid-ocean ridges contributes to the global oceanic zinc isotopic mass balance. Geochimica et Cosmochimica Acta, 335, 56-67:

  • Ding T, Wang J, Tao C, Dias Á A, Liang J, Wang Y, Chen J, Wu B, Huang H. (2022) Trace-element compositions of sulfides from inactive Tianzuo hydrothermal field, Southwest Indian Ridge: implications for ultramafic rocks hosting mineralization. Ore Geology Reviews, 104421:

  • Qiu Z, Tao C, Ma W, Dias Á A, Hu S, Shao Y, Yang K, Zhang W (2022) Material Source of Sediments from West Clarion–Clipperton Zone (Pacific): Evidence from Rare Earth Element Geochemistry and Clay Minerals Compositions. Journal of Marine Science and Engineering, 10,1052:

  • Yang W, Liao S, Dias Á A, Liang J, Li W, Ding T, & Tao, C. (2022). Geochemistry, sulfur and lead isotopic composition of hydrothermal sulfide from the Duanqiao hydrothermal field on the Southwest Indian Ridge: implications for ore genesis. International Geology Review, 1–17.


  • Yu J,Tao C, Liaob S, Dias Á A, Liang J,Yangb W, Zhud C (2021) Resource estimation of the sulfide-rich deposits of the Yuhuang-1 hydrothermal field on the ultraslow-spreading Southwest Indian Ridge. Ore Geology Reviews, 104169 :

  • Quelhas, P, Borgens. R, Dias, A. Á, Ribeiro, L, Costa, P Mata, J. (2021) Geological Map of the Macao Special Administrative Region (China). (2021) Journal of Maps, 17 (2)257-267

  • Quelhas, P, Mata J and Dias, A Á (2021) Magmatic evolution of garnet-bearing highly fractionated granitic rocks from Macao, Southeast China: Implications for granite-related mineralization processes. Journal of Earth Sciences. JES-07-2020-0330.

  • Quelhas P, Mata J, Dias Á A (2021) Evidences for mixed contribution of mantle, lower and upper crust to the genesis of Jurassic I~type granites from Macao, SE China. GSA Bulletin. 133 (1-2): 37–56..


Before 2020

  • Liao S, Tao C, Dias Á A, Su X, Yang Z, Ni, Liang J, Yang W, Liu J, Li W, Dong C (2019) Surface sediment composition and distribution of hydrothermal derived elements at the Duanqiao-1 hydrothermal field, Southwest Indian Ridge. Marine Geology

  • Quelhas, P., Dias, A. Á, Mata, J., Don, D., Ribeiro, L. (2019) High-precision geochronology of Mesozoic magmatism in Macao, Southeast China: evidence for multistage granite emplacement. Geoscience Frontiers

  • Costa P and Dias Á A. (2019) Hydrothermal Fe-Mn deposits from low-temperature systems of the Mid-Atlantic Ridge. InterRidge Workshop on Hydrothermal Ore-forming Processes, Hangzhou.

  • Qiu W, Dias Á A, Barriga F, Tao C (2019) Sulfide mineralization of the Saldanha hydrothermal field (MAR): constraints from sulfur isotope in-situ microanalysis. InterRidge Workshop on Hydrothermal Ore-forming Processes, Hangzhou.

  • Dias Á A, Costa P. Marques AF, Ribeiro L, Madureira P, Calado A, Gonçalves E & Morato T (2019) Geochemistry of Fe-Si-(Mn) Chimneys from Luso Vent Field, MAR. Goldschmidt 2019. 10i, 445. Barcelona.

  • Quelhas P, Dias Á A, Mata J & Wayne Davis D (2019) Geochronological, geochemical and petrographic constraints on incremental pluton growth: the case of Macao granitic suite. Goldschmidt 2019. 06g, 258. Barcelona.

  • Quelhas, P., Mata, J., Lou, U. T., Ribeiro, M. L., Borges, R., Dias, Á A (2018). A origem e evolução dos magmas graníticos de Macao à luz de dados de geoquímica elementar e isotópica / Source and evolution of Macao granitic magmas: insights from wholerock geochemistry and isotopic signatures.  XIV Congresso de Geoquímica dos Países de Língua Portuguesa e XIX Semana de Geoquímica (XIV CGPLP/XIX SG, international conference). 25-29 March 2018, Trás-os-Montes e Alto Douro, Portugal.

  • Milinovic J, Barriga F, Dias Á A, Martins S, Pereira M & Janeiro A (2017) Offshore Assessment of Minerals in Deep-Sea Sediments from the TAG-Area (26°N, 44°W). Goldschmidt2017. Paris.

  •  Quelhas, P., Mata, J., Lou, U. T., Ribeiro, M. L., Borges, R., Dias Á. (2017) New Geochemical Constraints on I-Type Granites of Macao: Petrogenesis and Geodynamic Implications. 27th Goldschmidt Conference. 2126, 06d 13-18, August 2017. Paris, France

  •  Quelhas P M, Mata J, Lou U T, Ribeiro M R and Dias Á (2016) Mesozoic Granitic Magmatism in Macao, Southeast China. AGU Fall meeting 12-16 December 2016, San Francisco

  • Dias Á, Quelhas P, Lou U, Mata J & Ribeiro M L (2016) Petrology and Geochemistry of Granitic Rocks from Macao. Goldschmidt2016. 61, 05c – 665. Yokohama, Japan. July. 

  • Dias, Á S and Barriga, F (2015) Saldanha hydrothermal field: the role of the sediment-cover in the preservation of ore-forming minerals. Third InterRidge Theoretical Institute: Magmatic and Tectonic Processes and Seabed Resources at Mid-Ocean Ridges. T2-09.

  • Cruz M I, Marques F A M, Dias Á S, Pedersen R, Barriga F J A S (2014) Sr and Nd isotopic composition of Jan Mayen and Loki’s Castle: a progress report. 43rd Underwater Mining Institute · 21-28 September 2014

  • Cruz MI, Marques F, Dias Á S et al (2013) Sulfide Sites in the Arctic Ocean: Jan Mayen and Loki’s Castle. Goldschmidt. Florence. Italy

  • Cruz M I, Dias A S etal (2013) Sulphide mineralization in Arctic seafloor hydrothermal fields: extending the European exploration area to the Far North. ERA-MIN, March, Carcavelos, Portugal

  • Relvas J, Barriga F, Costa I, Cruz I, Dias Á, Marques F, Pinto A (2012). Massive Sulfide Mineralization in Relic and Modern Seafloor. Ophiolite and Related Ore and Industrial Minerals, Karadeniz Technical Univ.,Turkey.

  • Dias, Á S et al (2011) Geochemistry and stable isotopes constraints on high-temperature activity from sediment cores of the Saldanha field. Marine Geology, 279 (2011) 128–140.

  • Dias, Á S et al (2010). Tracing fluid-rock reaction and hydrothermal circulation at the Saldanha hydrothermal field. Chemical Geology, 273(3-4): 168-179.

  • Dias, Á S (2008) Geochemistry of a sediment push-core from the Lucky Strike hydrothermal feld, Mid-Atlantic Ridge. Chemical Geology, 247(3-4): 339-351

  • Dias Á S and Barriga F. (2006) Mineralogy and geochemistry of hydrothermal sediments from the serpentinite-hosted Saldanha hydrothermal field (36°34′N; 33°26′W) at MAR. Marine Geology. 225, 157–175

  • Dias Á S and Barriga, F J A S, (2005). Mineralogical and geochemical hydrothermal evidences on sediments from the serpentinite-hosted Saldanha hydrothermal field. Mineral Deposit Research. 1: 603-606

  • Miranda J M, Silva P F, Lourenço N, Henry B, Costa R and Saldanha Team (Dias, Á S included) (2003) Study of the Saldanha massif (MAR, 36º34´N): Constrains from rock magnetic and geophysical data. Marine Geophysical Researches, 23: 299–318

  • Cruz M I, Dias Á S, Relvas J M R S, Carvalho C, Fonseca R, Pedersen R.B, Barriga F J A S (2011) Geochemistry of the Artic Loki’s Castle hydrothermal vent products, Mineralogical Magazine Goldschmidt Conference, p 708

  • Dias Á S, Cruz I, Fonseca R, Barriga F J A S, Pedersen, R B (2011) Trollveggen Vent Field: Mineralogy and geochemistry of chimneys and deposits, and evidence of hydrothermal activity in far-field cores. Final EuroMARC conference

  • Cruz M I, Dias Á S, Carvalho C, Barriga F J A S, Relvas J M R S, Fonseca R, Pedersen R (2011) Loki's Castle Arctic Vents and Host Sediments: Mineralogy and Geochemistry, Final EuroMarc Conference

  • Dias Á S et al (2010) Mineralogy and Geochemistry from Trollveggen Vent Field Chimneys and Metalliferous Sediments (Mohns Ridge, West Jan Mayen Fracture Zone at 71°N).Eos, Transactions, American Geophysical Union, AGU's online supplement

  • Barriga F, Fonseca R, Dias Á S, Cruz I, Carvalho C, Relvas J, Pedersen R B (2010) Acid-Extractable Geochemistry from the Loki's Castle Hydrothermal Field, Norwegian Sea at 74º N (South Knipovich Ridge).Eos, Transactions, AGU's online supplement

  • Barriga FJAS, Carvalho C, Cruz MI, Dias Á S, et alR (2010) Preliminary Results on Mineralogy and Geochemistry of Loki's Castle Arctic Vents and Host Sediments. Geophysical Research Abstracts Vol 12, EGU2010-11970, European Geosciences Union (EGU)

  • Barriga F J A S, Carvalho C, Cruz I M, Dias Á S, Fonseca R, Relvas J M, Pedersen R B (2010) Mineralogy and geochemistry of Loki’s Castle Arctic vents and host sediments: preliminary results. European Geosciences Union (EGU). Vienna, Austria.

  • Dias Á S, Fruh-Green GL, et al (2006) High Temperature Hydrothermal Components in the Sediment Cover of the Saldanha Hydrothermal Field. Eos, Transactions, American Geophysical Union, AGU OS21B: 1591. AGU's online supplement

  • Barriga FJAS, Dias Á S, Mills RA, et al (2006) Pb and Nd Isotope Variations and Elemental Geochemistry in Hydrothermal Sediments in a Push Core from Lucky Strike, 37ºN Mid-Atlantic Ridge. Eos Transactions, AGU. 1590. AGU's online supplement

  • Dias Á S, Jorge R and Barriga F (2005) Low temperature hydrothermal Manganese crust from Saldanha field, Mid-Atlantic Ridge, International MoMar Implementation Workshop, 29.

  • Dzhatieva Z, Sinha M, Santos F, Silva N, Dias Á S, et al (2005) On preliminary results of the active electromagnetic survey of Saldanha hydrothermal venting field, MAR. International MoMar Implementation Workshop, 33

  • Sinha M C, Santos F, Dzhatieva Z, Dias Á S, et al (2005), Saldanha Massif, Mid-Atlantic Ridge: A Controlled Source EM Study. Eos, Transactions. AGU, 86(52), OS33A-1464

  • Sinha M, Dzhatieva Z, Santos F, Silva N, Dias Á S, et al (2005) Active electromagnetic survey of hydrothermal venting area at Saldanha Massif, Mid-Atlantic Ridge. Geophysical Research 7, EGU05-A-07706

  • Dias Á S, Barriga F, Fouquet Y (2002) Hydrothermal sediments from Saldanha Mount (MAR, FAMOUS/AMAR). Theoretical Institute, Thermal Regime of Ocean Ridges and Dynamics of Hydrothermal Circulation, Pavia, IRTI, InterRidge, Abst 41

  • Barriga F J A S, Dias Á S, et al (2002) Replacement processes in volcanogenic massive sulfide deposits; the key to giant orebodies. Geological Society of America 34(6):444

  • Barriga F J A S, Fouquet Y, Almeida A, Biscoito M, Charlou J-L, Costa R, Dias Á S, et al (1999) Preliminary results of the Saldanha mission (FAMOUS segment of the MAR 36º30’N), Geophysical Research Abstracts, EGS, vol 1, 184

  • Barriga F. Fouquet Y, Armando A, Miranda M, Charlou J-L, Costa R, Dias Á S, et al (1998). Discovery of the Saldanha Hydrothermal Field on the FAMOUS Segment of the MAR (36º; 30’N) Eos Trans., AGU 79(45): F67

Governmental Reports

  • Collaboration in “Relatório da Comissão Estratégica dos Oceanos” (2004) Comissão Estratégica dos Oceanos. Portuguese Government, 329pp.


Year 1 Doctorate
Year 1 Master
Year 2 Bachelor
2 credits
Year 3 Bachelor
Year 4 Bachelor
4 credits
Year 0
Year 1
3 credits
3 credits