ASSOCIATE PROFESSOR

CURRENTLY // Researcher at ISE – USJ, Mo

Researcher at Instituto Dom Luis / Associated Lab, Pt

ResearcherID:
A-8723-2013

ORCID iD iconorcid.org/0000-0003-3026-7366

Research Gate: Ágata A Dias

FORMATION: 
PhD in Geology (Crystallography, Mineralogy and Metallogeny), UL; MSc in Dynamic Geology, FCUL; Graduation in Geology, FCUL.

POST-DOC ACTIVITIES: 
(1) Arctic ultra-low spreading ridges: Jan Mayen and Loki’s Castle Hydrothermal fields, integrated in an European project (H2Deep-EUROCORES). 

(2) Seafloor hydrothermal systems and associated mineral deposits in the Portuguese EEZ and adjacent areas (FCT: SFRH/BPD/68648/

RESEARCH INTERESTS

Mineralogy, Petrology and geochemistry; Deep sea hydrothermal systems and associated ore deposits; Magmatic and Ultramafic systems; Stable and radiogenic isotopes geochemistry; geochronology.

Other interests: Fe-Mn oxyhydroxides, air pollution and chemistry.

SCIENTIFIC CRUISES (Marine fieldwork)

2009 – Scientist in the Luso2009 cruise on board of NRP Almirante Gago Coutinho (PT) with the ROV (Remotely Operated Underwater Vehicle) Luso; Governmental Task Group for the Portuguese Continental Shelf Extension (EMEPC); Azores island slopes geomorphology and geology and scientific studies for the Portuguese continental shelf extension in the Atlantic Ocean. Coordinator of survey dives at AMAR region.

2008 – Scientist in the Mission Luso2008; on board NRP Almirante Gago Coutinho (PT) with the ROV Luso; Scientific studies for the Portuguese continental shelf extension in the Atlantic Ocean; Governmental Task Group for the Portuguese Continental Shelf Extension (EMEPC); Coordinator of the sediment corers sampling PI: Manuel Pinto de Abreu e Nuno Lourenço.

2008 – Scientist and gravity core drilling coordinator in the Mission H2Deep leg 2 (EuroMARC Project), on board of G.O. SARS (Norway) with the ROV Bathysaurus; Survey of hydrothermal systems from Ultraslow spreading ridges. European cruise.

2004 – Scientist and gravity core drilling coordinator in the Mission CD167 (SEAHMA) on board of RRS Charles Darwin (UK). The aim of the cruise was the geological and geophysical survey of the Saldanha hydrothermal system (Mid-Atlantic Ridge).

2002 – Scientist in the Mission SEAHMA 1, on board of Atalante (IFREMER) with ROV Victor. MAR seafloor research Portuguese mission (Seahma project/FCT); Participation as researcher and responsible of ROV research dives (FCUL).

1998 – Scientist in the Mission SALDANHA, on board of NADIR (IFREMER), with a deep diving submersible – NAUTILE  (IFREMER). MAR seafloor research. Participation as researcher and coordinator of one of the Nautile submersible dives. Portuguese and French mission financed by Portuguese Government funds (Programa PRAXIS XXI).

1990 – Junior scientist in the Mission PLAMIBEL I, on board Auriga oceanographic vessel. Portuguese mission (IH – Portuguese Hydrographic Institute) with collaboration of Bordéus University. Research participation. Study of the Portuguese continental shelf between Douro and Minho rivers and the turbiditic plumes connected with rivers from northern.

SELECTED RESEARCH PROJECTS

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

 Seafloor Massive Sulfides Resource along Mid-Ocean Ridges. InterRidge Working Group. onhttp://www.interridge.org/WG_SMS_MOR (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.

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

H2DEEP – EuroMARC Project  (ESF)  Ultra-slow spreading and hydrogen-based deep biosphere (H2DEEP). No. ERAS-CT-2003-980409 of the European Commission. EUROCORES Program  – EuroMarc /0001/2007, 2007-2013

SEAHMA – Seafloor and Sub-seafloor Hydrothermal Modelling in the Azores Sea POCTI/P/MAR/15281/1999. 2001-2008 (team member)

MOMAR – Monitoring the Mid-Atlantic Ridge: MOMAR I, 1998; MOMAR II, 2002.

AMAR – Localização e Caracterização de Fontes Hidrotermais no Segmento AMAR: FCT (Praxis XXI) 1997-98

AMORES – Azores. Mid-Oceanic Ridge Ecosystem Studies: MAS3-CT95-0040) – EU – MAST III 1996 – 1998 (Team member

MARFLUX / ATJ – Study of Hydrothermal Fluxes in the Azores Triple Junction – EU – 1994-1996

SCIENCE SPREADING PROJECTS:
The Earth’s Last Frontier – Mysteries of the Deep Sea / 地球最後的樂土 – 深海探索 (Macau Foundation) – 2015 May.

SELECTED PUBLICATIONS
& COMMUNICATIONS

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

Quelhas, P., Mata, J., Lou, U. T., Ribeiro, M. L., Borges, R., Dias, Á (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.

P. Quelhas, J. Mata, U.T. Lou, R. Borges, M.L. Ribeiro and Á. Dias (2017) New geochemical constraints on I-type granites of Macao: evidences for fractional crystallization and petrogenetic affinities with Jurassic-Cretaceous granites in SE ChinaGoldschmidt2017. 06d-2126. Paris.

Milinovic J, Barriga F, Dias Á, 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 M, Mata J, Lou U T, Ribeiro M R and Dias A Á (2016) Mesozoic Granitic Magmatism in Macao, Southeast ChinaAGU Fall meeting 12-16 December 2016, San Francisco, USA

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. http://goldschmidt.info/2016/uploads/abstracts/finalPDFs/665.pdf

Dias, Á S and Barriga, F (2015) Saldanha hydrothermal field: the role of the sediment-cover in the preservation of ore-forming mineralsThird InterRidge Theoretical Institute: Magmatic and Tectonic Processes and Seabed Resources at Mid-Ocean RidgesT2-09. Hangzhou, China. Sept.

Dias, Á (2015) Presentation of the Magic Project. First Meeting on the Geology of Macao, ISE/USJ, Macao, 9 -13 of Nov.

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 · Sept.

Cruz MI, Marques A F, Dias Á S, Pedersen R, Relvas J M R S, Barriga F J A S, (2013) Sulfide Sites in the Arctic Ocean: Jan Mayen and Loki’s CastleMineralogical MagazineGoldschmidt2013, April.

Cruz M I, Dias Á S, , Pedersen R.B, Relvas J M R S, Fonseca RBarriga F J A S (2013) Sulphide mineralization in Arctic seafloor hydrothermal fields: extending the European exploration area to the Far North, ERA-MIN. Mar.

Relvas, J M R S, Barriga, F J A S, Costa, I M R, Cruz, I M, Dias, Á S, Marques, A F A, Pinto, AMM (2012). Massive Sulfide Mineralization in Relic and Modern Seafloor. Ophiolite and Related Ore and Industrial Minerals, Karadeniz Technical University, Department of Geological Engineering, Trabzon, Turkey, 16-22 May.

Dias Á, Fruh-Green G L, Bernasconi S M, Barriga F J A S and Seahma and Charles Darwin 167 cruise teams, (2011) Geochemistry and stable isotopes constraints on high-temperature activity from sediment cores of the Saldanha fieldMarine Geology 279 (2011) 128–140. http://dx.doi.org/10.1016/j.margeo.2010.10.017: TOP 25 HOTTEST ARTICLES

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, Feb.

Cruz MI, 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, Feb.

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. Goldschmidt Conference Abstracts. Mineralogical Magazine 75:p708. http://goldschmidtabstracts.info/2011/708.pdf.

Dias Á S , Mills R A, Ribeiro da Costa I, Costa R, Taylor R N, Cooper M, and Barriga F J A S, (2010). Tracing fluid-rock reaction and hydrothermal circulation at the Saldanha hydrothermal field. Chemical Geology, 273(3-4): 168-179. doi:10.1016/j.chemgeo.2010.02.020

Dias Á S, Cruz I, Fonseca R, Barriga F J A S, Pedersen, R B (2010) Mineralogy and Geochemistry from Trollveggen Vent Field Chimneys and Metalliferous Sediments (Mohns Ridge, West Jan Mayen Fracture Zone at 71°N). American Geophysical Union (AGU), OS21A-1483. Eos, Transactions, American Geophysical Union, AGU’s online supplement http://www.agu.org/pubs/eos-news/supplements/

Barriga F J A S, Fonseca R, Dias Á S, Cruz I M, R Carvalho C, Relvas J M, Pedersen R B (2010) Acid-Extractable Geochemistry from the Loki’s Castle Hydrothermal Field, Norwegian Sea at 74 degrees N (South Knipovich Ridge). American Geophysical Union ( AGU), OS21A-1484 Eos, Transactions, American Geophysical Union, AGU’s online supplement http://www.agu.org/pubs/eos-news/supplements/

Cruz MI, Barriga FJAS, Carvalho C, Dias Á S, Fonseca R, Relvas JMRS, Pedersen R (2010) Loki’s Castle Arctic vents and host sediments: Arctic large scale hydrothermal fields. Ciencia 2010. Lisbon, Jully, 2010.

Barriga FJAS, Carvalho C, Cruz MI, Dias Á S, Fonseca R, Relvas JM, Pedersen R (2010) Preliminary Results on Mineralogy and Geochemistry of Loki’s Castle Arctic Vents and Host Sediments. Geophysical Research Abstracts Vol12, EGU2010-11970, European Geosciences Union (EGU) General Assembly 2010

Barriga F J A S, Fonseca, Dias Á S, Cruz I M, R Carvalho C, Relvas J M, Pedersen R B (2010) Acid-Extractable Geochemistry from the Loki’s Castle Hydrothermal Field, Norwegian Sea at 74 degrees N (South Knipovich Ridge). American Geophysical Union (AGU), OS21A-1484.  Eos, Transactions, American Geophysical Union, AGU’s online supplement http://www.agu.org/pubs/eos-news/supplements/

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.EGU (European Geosciences Union) General Assembly. Vienna, Austria.

Dias Á S, Mills R A Taylor R N, Ferreira, P and Barriga, F J A S , (2008). Geochemistry of a sediment push-core from the Lucky Strike hydrothermal field, Mid-Atlantic RidgeChemical Geology, 247(3-4): 339-351. doi:10.1016/j.chemgeo.2007.10.015.

Dias Á S. and Barriga F. (2006) Mineralogy and geochemistry of hydrothermal sediments from the serpentinite-hosted Saldanha hydrothermal field (36834VN; 33826VW) at MARMarine Geology. 225, 157–175. doi:10.1016/j.margeo.2005.07.013.

Dias Á S and Barriga, F J A S, (2005). Mineralogical and geochemical hydrothermal evidences on sediments from the serpentinite-hosted Saldanha hydrothermal fieldMineral Deposit Research. 1: 603-606. http://link.springer.com/chapter/10.1007%2F3-540-27946-6_154

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 dataMarine Geophysical Researches 23: 299–318.