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Gil Machado is a Petroleum Exploration Geologist with a Ph.D in stratigraphy and source rock characterization. After a short experience in the mining industry, he has worked for Oil & Gas companies for the past 12 years in Exploration Geology and biostratigraphy, dealing with projects in the Middle East, Brazil, Angola, Mozambique, Morocco, among others. His experience ranges from Regional prospectivity reports, data room and bid round evaluation to seismic interpretation and prospect generation, well correlation, source rock characterization, geological reservoir and siliciclastic rocks characterization. His biostratigraphic expertise is Palaeozoic Palynology, although he has worked with several fossil groups from Ediacaran to Cainozoic sedimentary rocks. He has supervised several Bachelor and Master theses dealing with stratigraphy, palynology, sedimentology and related subjects. He has also mentored younger staff in several companies on seismic interpretation, deep water sedimentation, palynology and biostratigraphy. He is currently a researcher at the University of Lisbon, Portugal.
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Identification

Personal identification

Full name
Gil Machado

Citation names

  • Machado, Gil

Author identifiers

Ciência ID
CE1F-C7E1-C19C
ORCID iD
0000-0002-6222-5964

Websites

Knowledge fields

  • Natural sciences - Earth and Environmental Sciences - Geology

Languages

Language Speaking Reading Writing Listening Peer-review
English Advanced (C1) Advanced (C1) Advanced (C1) Advanced (C1)
French Intermediate (B1) Intermediate (B1) Beginner (A1) Intermediate (B1)
Spanish; Castilian Intermediate (B1) Advanced (C1) Beginner (A1) Intermediate (B1)
Portuguese Advanced (C1) Advanced (C1) Advanced (C1) Advanced (C1)
Education
Degree Classification
2010
Concluded
 PhD in Geosciences (European Doctorate) (Doutoramento)
Universidade de Aveiro, Portugal
"Upper Palaeozoic Stratigraphy and Palynology of OMZ, NW and SW Portugal" (THESIS/DISSERTATION)
 Unanimously approved
2004
Concluded
 Geology (Licenciatura)
Universidade de Lisboa Faculdade de Ciências, Portugal
"-" (THESIS/DISSERTATION)
 16
Affiliation

Science

Category
Host institution 		Employer
2006/01/01 - 2010/12/13 Researcher (Research) Universidade de Aveiro GeoBioTec Geobiociências Geotecnologias e Geo-engenharias, Portugal

Others

Category
Host institution 		Employer
2019/03/01 - Current Technical director Chronosurveys Lda, Portugal
Universidade de Lisboa Instituto Geofísico do Infante Dom Luiz, Portugal
2015/01/01 - 2019/02/28 Geoscientist Galp Energia SGPS SA, Portugal
Universidade de Lisboa Instituto Geofísico do Infante Dom Luiz, Portugal
2012/01/13 - 2014/08/31 Stratigrapher Petroleum Development Oman, Oman
Universidade de Lisboa Instituto Geofísico do Infante Dom Luiz, Portugal
2010/09/08 - 2012/09/01 Geoscientist Galp Energia SGPS SA, Portugal
2005/09/01 - 2005/12/20 Leonardo da Vinci Science Intern Geologický ústav Akademie ved Ceské republiky, Czech Republic
2004/07/01 - 2004/09/20 Junior Field Geologist Mineradora de Bauxita (Minmet group), Brazil
Projects

Contract

Designation Funders
2024/01/02 - 2024/01/02 BiostratAI2
BiostratAI2
Principal investigator
Chronosurveys Lda, Portugal
 Fondazione Piemonte Innova
Ongoing
2022/06/01 - 2023/01/01 BiostratAI
STAR_1OC_9
Principal investigator
Chronosurveys Lda, Portugal
Concluded
2020/10/01 - 2022/03/01 Pageo2 - paleobiogeography
Pageo2
Co-Principal Investigator (Co-PI)
Chronosurveys Lda, Portugal
 OERA
Concluded
2005/01 - 2010/01 UPPER PALEOZOIC STRATIGRAPHY AND PALYNOLOGY OF OMZ, NW AND SW PORTUGAL
SFRH/BD/23787/2005
 Fundação para Ciência e a Tecnologia
Outputs

Publications

Book chapter
  1. Machado, Gil. "Devonian sedimentation in Western Ossa-Morena Zone and its geodynamic significance". 2020.
    10.1007/978-3-030-10519-8
Conference abstract
  1. Machado, Gil; Laurenz Strothmann; Frederik Strothmann. Corresponding author: Machado, Gil. "Digitalization and artificial intelligence applications to biostratigraphy – a new world". Paper presented in Stratigraphy in Modern Geoscience, London, 2024.
    Published
  2. Machado, Gil; Frederik Strothmann; Laurenz Strothmann. Corresponding author: Machado, Gil. "Digital palynology and artificial intelligence - new tools for biostragraphers". Paper presented in The Micropaleontological Society Annual Meeting, Southhampton, 2023.
    Published
  3. Machado, Gil; Laurenz Strothmann; Frederik Strothmann. "PalynofAIcies – using artificial intelligence to assist biostratigraphic analyses". Paper presented in ICE International Conference and Exhibition, Madrid, 2023.
    Published
  4. Machado, Gil; Frederik Strothmann; Laurenz Strothmann. "Digitalização de coleções palinológicas e inteligência artificial". Paper presented in II PaleoPT, Lourinhã, 2023.
    Published
  5. Machado, Gil; Pereira, Zélia; Fernandes, Paulo; Ansgar Wanke; Raydel Perez; Yuri Perez. "Permian palynostratigraphy of Northern Namibia: new data from the Huab, Owambo and Waterberg Basins". Paper presented in Strati, Lille, 2023.
    Published
  6. Machado, Gil; Laurenz Strothmann; Frederik Strothmann. "PalynofAIcies – a new artificial intelligence-assisted tool to analyse palynology slides". Paper presented in Strati, Lille, 2023.
    Published
  7. Silvério, Gonçalo; Machado, Gil; José Valenzuela-Ríos; Moreira, Noel; Pereira, Sofia. Corresponding author: Silvério, Gonçalo. "Paleontologia de conodontes em Portugal: estado da arte". Paper presented in Congresso Nacional de Geologia, Coimbra, 2023.
    Published
  8. Machado, Gil; Pereira, Zélia; Fernandes, Paulo; Ansgar Wanke; Raydel Perez; Yuri Perez. "Karoo Palynostratigraphy of the Kavango Basin and its Paleogeographic Implications". Paper presented in Hydrocarbon Potential in Namibia. AAPG, Windhoek, 2022.
    Published
  9. Machado, Gil. "Using petroleum industry stratigraphic analytical techniques in the mining industry". Paper presented in Halifax 2022 GAC-MAC-IAH-CNC-CSPG joint meeting, Halifax, 2022.
    Published
  10. Fonseca, Maria de Lurdes; Mafalda Tavares; Cachão, Mário; Christopher Scotese; Machado, Gil; Fraser Keppie; Natasha Morrison; Russel Dmytriw. Corresponding author: Fonseca, Maria de Lurdes. "North-Atlantic opening and ocean water mixing from Pacific and Tethyan realms: a nannofossil approach". Paper presented in Conjugate Margins Conference, Marrakesh, 2022.
    Published
  11. Machado, Gil; Casas-Gallego, Manuel; Houssine Boutarouine; Burliga, Stanislaw; Fernandes, Paulo. "Palynology of evaporites: case studies and a bright future ahead". Paper presented in The Micropaleontological Society Annual Meeting, Praga, 2021.
    Published
  12. Machado, Gil; Casas-Gallego, Manuel; Houssine Boutarouine; Burliga, Stanislaw; Fernandes, Paulo. "Salt Biostratigraphy: unlocking a highway of data from evaporites". Paper presented in FORCE biostratigraphy workshop, Stavanger, 2021.
    Published
  13. Machado, Gil. "The biostratigraphy of salt. Examples from the Algarve Basin, SW Portugal". Paper presented in Euroasian Mature Salt Basins. AAPG GTW, Warsaw, 2019.
    Published
  14. Machado, G.; Rodrigues, Cristiane. "Deep water sedimentation in the Barreirinhas Basin, NE Brazil: Examples from 3D seismic data". Paper presented in 33rd International Meeting of Sedimentology, Toulouse, 2017.
  15. Machado, Gil; Esteves, Cristiana; Pimentel, Nuno; Fonseca, Paulo E.. "Palynofacies of the Pennsylvanian Brejeira Formation, South Portuguese Zone, SW Portugal". Paper presented in AASP-CIMP- TMS meeting., Nottingham, 2017.
    Published
  16. Machado, Gil; Vavrdová, M.; Fonseca, M.; Fonseca, Paulo E.; Rocha, F. T.. "The bearing of the Stratigraphy and Palynology of the Pennsylvannian Buçaco Basin on the geodynamic evolution of NW Iberia". Paper presented in AASP-CIMP- TMS meeting, Nottingham, 2017.
    Published
  17. Machado, Gil; Adamson, P.. "Acanthomorphic acritarch pseudofossils in Ediacaran chert nodules from Oman". Paper presented in The Palaeontological Association 59th Annual Meeting, Cardiff, 2015.
    Published
  18. Machado, Gil. "Use of field dependent susceptibility in determination basaltic tuff material in sedimentary record". 2009.
  19. Machado, Gil; Vavrdová, M.; Fonseca, P. E.; Rocha, F. T.; Chaminé, H.I.. "Palynomorphs from the metasedi-ments of the Bemposta-Minhoteira sector (Albergaria-a-Nova area, Ossa-Morena zone, NW Portugal)". Paper presented in CIMPLisbon ‘07. Joint meeting of spore/pollen and acritarch Subcommissions. Abstracts. INETI, Lisbon, Portugal, Lisbon, 2007.
    Published
Conference paper
  1. Machado, Gil. "Biostratigraphy of Siliciclastic Reservoirs of the Arabian Plate: Current State and Future Challenges". Paper presented in 2019 AAPG Middle East Region Geoscience Technology Workshop, 3rd Edition of the Siliciclastic Reservoirs of the Middle East, Muscat, 2019.
    Published
  2. Machado, Gil. "Senonian unconformity (SNE-like) play in the MSGBC Basin – more to come?". Paper presented in PESGB Africa conference, London, 2019.
    Published
  3. Machado, Gil. "Initial biostratigraphical results from a ?Moscovian/Kasimovian paleobotanical site in Santa Susana basin (Alcacer do Sal, Portugal)". 2009.
  4. Machado, Gil. "Emsian-Eifelian mixed carbonate-volcaniclastic sequence in western Ossa-Morena zone (Odivelas limestone)". 2009.
  5. Machado, Gil. "Organic-walled microplankton from the Upper Devonian of the Albergaria-a-Velha black shales (W Portugal) and its paleobiogeographical implications: preliminary results". 2008.
  6. Machado, Gil. "Dating and differentiation of geological units in highly deformed and metamorphosed rocks ¿ Can palynology help? Examples from the Ossa-Morena Zone (W Portugal)". 2008.
  7. Machado, Gil. "Middle Devonian reef fauna and co-occurring acritarchs from volcanosedimentary sequences within the Beja Igneous Complex (SW Ossa-Morena Zone, Portugal)". 2008.
Journal article
  1. Gonçalo Silvério; Jau-Chyn Liao; José I. Valenzuela-Ríos; Gil Machado; Pedro Barreto; Noel Moreira. "Middle Devonian reef-derived calciturbidites of western Ossa-Morena Zone (Portugal): conodont biostratigraphy of the Eifelian Pedreira da Engenharia Limestone". Journal of Iberian Geology (2024): https://doi.org/10.1007/s41513-024-00242-0.
    10.1007/s41513-024-00242-0
  2. Machado, Gil; Casas-Gallego, Manuel; Burliga, Stanislaw. "Salt biostratigraphy: The Miocene palynological assemblages from the Wieliczka Formation, southern Poland". AAPG Bulletin 107 1 (2023): 151-167. http://dx.doi.org/10.1306/07142221125.
    10.1306/07142221125
  3. Machado, Gil. "Salt Biostratigraphy: An Untapped Source of Data?". GeoExPro 17 1 (2020): 58-65. https://assets.geoexpro.com/uploads/e625b41c-b3ca-4782-a1e8-10c52981487e/Geoscience_Magazine_GEO_ExPro_V17_I1_2020.pdf.
    Open access • Published
  4. "Palynological dating of low-grade metamorphosed rocks: Applications to Early Paleozoic rocks of the Central Maine/Aroostook-Matapedia Basin and Fredericton Trough (Northern Appalachians) in eastern and east-central maine, U.S.A.". American Journal of Science (2020): http://dx.doi.org/10.2475/03.2020.03.
    10.2475/03.2020.03
  5. Gil Machado; Ladislav Slavík; Noel Moreira; Paulo Emanuel Fonseca. "Prasinophyte bloom and putative fungi abundance near the Kacák event (Middle Devonian) from the Odivelas Limestone, Southwest Iberia". Palaeobiodiversity and Palaeoenvironments (2020): https://doi.org/10.1007%2Fs12549-019-00415-1.
    10.1007/s12549-019-00415-1
  6. Ribeiro, J.; Machado, G.; Moreira, N.; Suárez-Ruiz, I.; Flores, D.. "Petrographic and geochemical characterization of coal from Santa Susana Basin, Portugal". International Journal of Coal Geology 203 (2019): 36-51. http://www.scopus.com/inward/record.url?eid=2-s2.0-85060327216&partnerID=MN8TOARS.
    10.1016/j.coal.2019.01.005
  7. Machado, G.; Vavrdová, M.; Fonseca, M.; Fonseca, P.E.; Rocha, F.; Machado, Gil. "Stratigraphy and palynology of the Pennsylvanian continental Buçaco Basin (NW Iberia)". Geobios 51 6 (2018): 507-516. http://www.scopus.com/inward/record.url?eid=2-s2.0-85055664815&partnerID=MN8TOARS.
    10.1016/j.geobios.2018.07.001
  8. Fernandes, P.; Lopes, G.; MacHado, G.; Pereira, Z.; Rodrigues, B.; P. FERNANDES; G. LOPES; et al. "Superimposed thermal histories in the southern limit of the Ossa Morena Zone - Portugal". Geological Magazine 154 3 (2017): 591-608. http://www.scopus.com/inward/record.url?eid=2-s2.0-84964291970&partnerID=MN8TOARS.
    10.1017/S0016756816000248
  9. Machado, Gil. "The first record of Cambrian conodonts from the Huqf-Haushi outcrops, Sultanate of Oman, Arabian Peninsula". Rivista Italiana di Paleontologia e Stratigrafia (2016): https://riviste.unimi.it/index.php/RIPS/article/view/7338/7174.
    https://doi.org/10.13130/2039-4942/7338
  10. Gil Machado; Deolinda Flores. "An effective method for the observation and documentation of highly mature palynomorphs using reflected light microscopy". Palynology 39 3 (2014): 345-349. http://dx.doi.org/10.1080/01916122.2014.970704.
    10.1080/01916122.2014.970704
  11. Pedro Dinis; Tom Andersen; Gil Machado; Fernanda Guimarães. "Detrital zircon U-Pb ages of a late-Variscan Carboniferous succession associated with the Porto-Tomar shear zone (West Portugal): Provenance implications". Sedimentary Geology 273-274 (2012): 19-29. http://dx.doi.org/10.1016/j.sedgeo.2012.06.007.
    10.1016/j.sedgeo.2012.06.007
  12. Machado, G.; Dias da Silva, I.; Almeida, P.. "Palynology, stratigraphy and geometry of the Pennsylvanian continental Santa Susana Basin (SW Portugal),Palinología, estratigrafía y geometría de la cuenca continental pensilvaniense de Santa Susana (Suroeste de Portugal)". Journal of Iberian Geology 38 2 (2012): 429-448. http://www.scopus.com/inward/record.url?eid=2-s2.0-84870330259&partnerID=MN8TOARS.
    10.5209/rev_JIGE.2012.v38.n2.40467
  13. Machado, G.; Francu, E.; Vavrdová, M.; Flores, D.; Fonseca, P.E.; Rocha, F.; Pereira, L.C.G.; et al. "Stratigraphy, palynology and organic geochemistry of the devonian-mississippian metasedimentary albergaria-a-velha unit (porto-tomar shear zone, W Portugal)". Geological Quarterly 55 2 (2011): 139-164. http://www.scopus.com/inward/record.url?eid=2-s2.0-80052929058&partnerID=MN8TOARS.
  14. Ribeiro, A.; Munh¿, J.; Fonseca, P. E.; Ara¿jo, A.; Pedro, J. C.; Mateus, A.; Tassinari, C.; et al. "Variscan ophiolite belts in the Ossa-Morena Zone (Southwest Iberia): Geological characterization and geodynamic significance". Gondwana Research 17 2-3 (2010): 408-421. http://www.scopus.com/inward/record.url?eid=2-s2.0-74449093148&partnerID=MN8TOARS.
    DOI: 10.1016/j.gr.2009.09.005
  15. Machado, G.; Hladil, J.; Slavík, L.; Koptíková, L.; Moreira, N.; Fonseca, M.; Fonseca, P.. "An Emsian-Eifelian calciturbidite sequence and the possible correlatable pattern of the Basal Chotec Event in Western Ossa-Morena zone, Portugal (Odivelas Limestone)". Geologica Belgica 13 4 (2010): 431-446. http://www.scopus.com/inward/record.url?eid=2-s2.0-77954569936&partnerID=MN8TOARS.
  16. Moreira, N.; Machado, G.; Fonseca, P.E.; Silva, J.C.; Jorge, R.C.G.S.; Mata, J.. "The Odivelas Palaeozoic volcano-sedimentary sequence: Implications for the geology of the Ossa-Morena Southwestern border,A sequência vulcano-sedimentar paleozóica de Odivelas: Implicações para a geologia do limite Sudoeste da Zona de Ossa-Morena". Comunicacoes Geologicas 97 1 (2010): 129-146. http://www.scopus.com/inward/record.url?eid=2-s2.0-84884364674&partnerID=MN8TOARS.
  17. Gil Machado; Jindrich Hladil; Leona Koptíková; Paulo Fonseca; Fernando Rocha; Arnošt Galle. "The Odivelas Limestone: evidence for a Middle Devonian reef system in western Ossa-Morena Zone (Portugal)". Geologica Carpathica 60 2 (2009): http://dx.doi.org/10.2478/v10096-009-0008-1.
    10.2478/v10096-009-0008-1
  18. Mattioli, M.; Machado, G.; Silva, I.; Almeida, P.. "Revision of the stratigraphy and palaeobotany of the Moscovian (Upper Carboniferous intramontane Santa Susana Basin (SW Portugal)". Paleolusitana 1 (2009): 269-275.
  19. Machado, Gil. "Dating and differentiation of geological units in highly deformed and metamorphosed rocks - Can palynology help? Examples from the Ossa- Morena Zone (W Portugal)". Trabajos de Geologia (2009):
  20. Machado, G.; Vavrdov¿, M.; Fonseca, P.; Chamin¿, H.; Rocha, F. T.. "Overview of the stratigraphy and initial quantitative biogeographical results from the Devonian of the Albergaria-a-Velha Unit (Ossa-Morena Zone, W Portugal)". Acta Mus. Nat. Pragae, Ser. B, Hist. Nat. 64 2-4 (2008): 109-113.
Report
  1. Machado, Gil. 2008. Newsletter do PalyPort - Grupo Informal de Palin¿logos Portugueses.

Other

Other output
  1. New data on the Albergaria-a-Velha Unit: Palynology, clay mineralogy and field observations. 2007. Machado, G.; Vavrdov¿, M.; Rocha, F. T.; Fonseca, P. E.; Gama Pereira, L. C.; Chamin¿, H. I..
Distinctions

Other distinction

2011 Invited speaker
American Association of Petroleum Geologists, United States
2008 Grant-in-aid: Meeting Attendance
The Palaeontological Association, United Kingdom
2006 Researcher travel grant
Fundação Calouste Gulbenkian, Portugal
2006 PhD fellowship
Fundação para a Ciência e a Tecnologia, Portugal
2005 Leonardo da Vinci Program internship in Academy of Sciences of the Czech Republic
European Union, Belgium
2003 Contact grant for undergraduate studies abroad
European Union, Belgium