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Geology of the recently discovered massive and stockwork sulphide mineralization at Semblana, Rosa Magra and Monte Branco, Neves–Corvo mine region, Iberian Pyrite Belt, Portugal

Published online by Cambridge University Press:  11 January 2021

Zélia Pereira Open the ORCID record for Zélia Pereira [Opens in a new window] ,
João X. Matos Open the ORCID record for João X. Matos [Opens in a new window] ,
A. Rita Solá Open the ORCID record for A. Rita Solá [Opens in a new window] ,
Maria João Batista Open the ORCID record for Maria João Batista [Opens in a new window] ,
Rute Salgueiro Open the ORCID record for Rute Salgueiro [Opens in a new window] ,
Carlos Rosa ,
Luís Albardeiro ,
Márcia Mendes Open the ORCID record for Márcia Mendes [Opens in a new window] ,
Igor Morais  and
Daniel de Oliveira Open the ORCID record for Daniel de Oliveira [Opens in a new window]
...Show all authors
Zélia Pereira*
Affiliation:
Laboratório Nacional de Energia e Geologia, LNEG, Rua da Amieira, Ap. 1089, 4466-901 S. Mamede de Infesta, Portugal
João X. Matos
Affiliation:
Laboratório Nacional de Energia e Geologia, LNEG, Bairro da Val d´Oca. Ap. 14, 7601-909 Aljustrel, Portugal
A. Rita Solá
Affiliation:
Laboratório Nacional de Energia e Geologia, LNEG, Estrada da Portela, Zambujal. Ap. 7586, 2611-901 Amadora, Portugal
Maria João Batista
Affiliation:
Laboratório Nacional de Energia e Geologia, LNEG, Estrada da Portela, Zambujal. Ap. 7586, 2611-901 Amadora, Portugal
Rute Salgueiro
Affiliation:
Laboratório Nacional de Energia e Geologia, LNEG, Estrada da Portela, Zambujal. Ap. 7586, 2611-901 Amadora, Portugal
Carlos Rosa
Affiliation:
Geology Consulting, Qta Pedra Branca, Av. Casal Segulim, 1685-891 Famões, Portugal
Luís Albardeiro
Affiliation:
Laboratório Nacional de Energia e Geologia, LNEG, Bairro da Val d´Oca. Ap. 14, 7601-909 Aljustrel, Portugal
Márcia Mendes
Affiliation:
Laboratório Nacional de Energia e Geologia, LNEG, Bairro da Val d´Oca. Ap. 14, 7601-909 Aljustrel, Portugal
Igor Morais
Affiliation:
Laboratório Nacional de Energia e Geologia, LNEG, Bairro da Val d´Oca. Ap. 14, 7601-909 Aljustrel, Portugal
Daniel de Oliveira
Affiliation:
Laboratório Nacional de Energia e Geologia, LNEG, Estrada da Portela, Zambujal. Ap. 7586, 2611-901 Amadora, Portugal
Nelson Pacheco
Affiliation:
Sociedade Mineira de Neves-Corvo, SA (Somincor), Stª Bárbara de Padrões, 7780-409 Castro Verde, Portugal
Vitor Araújo
Affiliation:
Sociedade Mineira de Neves-Corvo, SA (Somincor), Stª Bárbara de Padrões, 7780-409 Castro Verde, Portugal
José M. Castelo Branco
Affiliation:
Geologia e Geotecnia Consultores Lda. R. Cunha Júnior, 41-B, sala 1.6, 4250-186 Porto, Portugal
Rodrigo Neto
Affiliation:
Rua das Saudades no. 2, 2 E/F, 2430-492 São Pedro de Moel, Portugal
João Lains Amaral
Affiliation:
Laboratório Nacional de Energia e Geologia, LNEG, Estrada da Portela, Zambujal. Ap. 7586, 2611-901 Amadora, Portugal
Carlos Inverno
Affiliation:
Laboratório Nacional de Energia e Geologia, LNEG, Estrada da Portela, Zambujal. Ap. 7586, 2611-901 Amadora, Portugal
José T. Oliveira
Affiliation:
Travessa Carlo Paggi, 9, 6º D, 1500-137 Lisboa, Portugal
*
Author for correspondence: Zélia Pereira. Email: [email protected]
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Abstract

The recently discovered massive and stockwork sulphide mineralization of Semblana-Rosa Magra and Monte Branco, situated ESE of the Neves–Corvo volcanogenic massive sulphide (VMS) deposit in the Iberian Pyrite Belt (IPB) is presented. Geological setting and tectonic model is discussed based on proxies such as palynostratigraphy and U–Pb zircon geochronology. The mineralization is found within the IPB Volcano-Sedimentary Complex (VSC) Lower sequence, which includes felsic volcanic rocks (rhyolites) with U–Pb ages in zircons of 359.6 ± 1.6 Ma, and black shales of the Neves Formation of late Strunian age. Massive sulphides are enveloped by these shales, implying that felsic volcanism, mineralization and shale sedimentation are essentially coeval. This circumstance is considered highly prospective, as it represents an important exploration vector to target VMS mineralization across the IPB, in areas where the Lower VSC sequence is present. The Upper VSC sequence, with siliciclastic and volcanogenic sedimentary rocks of middle–late Visean age, shows no massive mineralization but a late Tournaisian (350.9 ± 2.3 Ma) volcanism with disseminated sulphides was also identified. Nevertheless, stratigraphic palynological gaps were found within the Strunian and in the Tournaisian sediments, between the Lower and Upper VSC sequences, reflecting probable erosion and uplift mechanisms linked with extensional tectonics. The Semblana and Monte Branco deposits and the Rosa Magra stockwork are enclosed by tectonic sheets that dismembered the VSC sequence in a fold-and-thrust tectonic complex, characteristic of the NE Neves–Corvo region. The methodologies used allow a geological comparison between Neves–Corvo and other IPB mine regions such as Lousal–Caveira, Herrerias, Tharsis and Aznalcollar.

Keywords

Neves–Corvo mine regionmineral explorationpalynostratigraphyU–Pb geochronologyIberian Pyrite BeltPortugal
Type
Original Article
Information
Geological Magazine , Volume 158 , Issue 7 , July 2021 , pp. 1253 - 1268
Copyright
© The Author(s), 2021. Published by Cambridge University Press

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References

Albardeiro, L, Morais, I, Solá, R, Matos, JX, Rosa, D, Batista, MJ, Pacheco, N, Araujo, V, Inverno, C, Salgueiro, R, Marques, F, Mendes, M, Pereira, Z and Oliveira, D (2018) Geochemical proxies as space and time indicators of the volcanism evolution in the Portuguese Iberian Pyrite Belt sector. Abstracts Book of XIV Congresso de Geoquímica dos Países de Língua Portuguesa, University of Trás-os-Montes e Alto Douro, 25–29 March 2018, Vila Real, Portugal, pp. 19–22.Google Scholar
Albardeiro, L, Solá, R, Salgueiro, R, Morais, I, Matos, JX, Mendes, M, Batista, MJ, Pereira, Z, Inverno, C, Oliveira, D, Rosa, D and Pacheco, N (2017) Insights into timing of mineralization in the Neves-Corvo VMS deposit (Iberian Pyrite Belt). Quebec, Canada: SGA 2017 Congress, Absracts 3, pp. 989–92.Google Scholar
Almodóvar, G, Yesares, L, Sáez, R, Toscano, M, González, F and Pons, JM (2019) Massive sulfide ores in the Iberian pyrite belt: mineralogical and textural evolution. Minerals 9, 653–70.CrossRefGoogle Scholar
Almodóvar, GR, Sáez, R, Pons, JM, Maestre, A, Toscano, M and Pascual, E (1998) Geology and genesis of the Aznalcóllar massive sulphidedeposits, Iberian Pyrite Belt, Spain. Mineralium Deposita 33, 111–36.Google Scholar
Araújo, V and Castelo Branco, JM (2011) Relatório 2º Semestre 2010, Área de prospeção de Castro Verde, Somincor. Laboratório Nacional Energia e Geologia, Lisboa, Internal Report no. 11363, 169 pp.Google Scholar
Barrett, T (2011) Initial lithogeochemical results at the Semblana Deposits, Neves-Corvo, Portugal. Report for AGC Minas de Portugal Unipessoal Lda, 18 pp.Google Scholar
Barriga, FJAS, Carvalho, D and Ribeiro, A (1997) Introduction to the Iberian Pyrite Belt. In SEG Neves Field Conference. Colorado: Society of Economic Geologists, Guidebook Series 27, 1–20.Google Scholar
Carvalho, D, Barriga, FJAS and Munhá, J (1999) Bimodal Siliciclastic systems: the case of the Iberian Pyrite Belt. In: Volcanic-Associated Massive Sulphide Deposits: Processes and Examples in Modern and Ancient Settings (eds Barrie, CT and Hannington, MD). Review of Economic Geology 8, 375–408.Google Scholar
Carvalho, J, Inverno, C, Matos, JX, Rosa, C, Granado, I, Branch, T, Represas, P, Carabaneanu, L, Matias, L and Sousa, P (2016) Subsurface mapping in the Iberian Pyrite Belt using seismic reflection profiling and potential field data. International Journal of Earth Sciences 106, 3, 899–915.CrossRefGoogle Scholar
Carvalho, P (1995) Relatório de Atividade, 1º Sem. 1995. Área de prospeção de Neves-Corvo-Corte Gafo, Somincor. Laboratório Nacional Energia e Geologia, Lisboa, Internal Report no. 13053, 114 pp.Google Scholar
Carvalho, P and Ferreira, A (1994) Geologia de Neves-Corvo: estado actual do conhecimento. In: II Simp Sulfuretos Polimetálicos da Faixa Piritosa Ibérica, Évora. 3–6 October 1993, Apimineral (Associação Portugusa da Indústria Mineral). Évora, Portugal: Portugal Mineral, 36, 7–8.Google Scholar
Clayton, G, Coquel, R, Doubinger, J, Gueinn, K, Loboziak, S, Owens, B and Streel, M (1977) Carboniferous Miospores of Western Europe: illustration and zonation. Mededelingen - Rijks Geologische Dienst, 29, 1–71.Google Scholar
Dias, RP, Oliveira, JT, Matos, JX, Ressurreição, R, Pereira, Z, Machado, S, Pais, J and Manupella, G (2016) Notícia Explicativa da Folha 42A Grândola. Unidade Geologia, Hidrogeologia e Geologia Costeira, Laboratório Nacional de Energia e Geologia, Lisboa, 113 pp.Google Scholar
Frei, D and Gerdes, A (2009) Precise and accurate in situ U-Pb dating of zircon with high sample throughput by automated LA-SF-ICP-MS. Chemical Geology, 261, 261–70.CrossRefGoogle Scholar
Gisbert, G, Losantos, E, Tornos, F, Pons, JM and Videira, JC (2019) Elvira: a new shale-hosted VMS deposit in the Iberian Pyrite Belt. V. 3 In Proceedings of 15th Society for Geology Applied to Mineral Deposits Conference. 27–30 August 2019, Glasgow, pp. 1256–59.Google Scholar
González, F, Moreno, C, Sáez, R and Clayton, G (2002) Ore genesis age of the Tharsis Mining District (Iberian Pyrite Belt): a palynological approach. Journal of the Geological Society, London, 159, 229–32.CrossRefGoogle Scholar
Guillong, M (2004) Laser Ablation Inductively Coupled Plasma Mass Spectrometry: Laser ablation system developments and investigations on elemental fractionation. Ph.D. thesis, Eidgens, Lase Technischen Hochschule Zurich, 190 pp. Published thesis.Google Scholar
Higgs, K, Prestianni, C, Streel, M and Thorez, J (2013) High resolution miospore stratigraphy of the Upper Famennian of eastern Belgium, and correlation with the conodont zonation. Geologica Belgica, 16, 84–94.Google Scholar
Jorge, RCGS, Relvas, JMRS and Matos, JX (2006) Geochemistry of metasediments from the Phyllite-Quartzite Group, Iberian Pyrite Belt: provenance, source-area weathering and geotectonic implications. Geochimica et Cosmochimica Acta 70(supplement 1), A298.CrossRefGoogle Scholar
Košler, J (2007) Laser ablation ICP-MS-a new dating tool in Earth science. Proceedings of the Geologists’ Association 118, 19–24.CrossRefGoogle Scholar
Košler, J and Sylvester, PJ (2003) Present trends and the future of zircon in geochronology: laser ablation ICPMS. Reviews in Mineralogy and Geochemistry 53, 243–75.CrossRefGoogle Scholar
Leca, X, Ribeiro, A, Oliveira, JT, Silva, JB, Albouy, L, Carvalho, P and Merino, H (1983) Cadre géologique des minéralisations de Neves Corvo (Baixo-Alentejo, Portugal) - Lithostratigraphie, paléogéographie et tectonique. Mémoires BRGM 1983. Orléans: Éditions du BRGM, 79 pp.Google Scholar
Leistel, JM, Marcoux, E, Thiéblemont, D, Quesada, C, Sánchez, A, Almodóvar, GR, Pascual, E and Sáez, R (1998) The volcanic-hosted massive sulphide deposits of the Iberian Pyrite Belt. Review and preface to the special issue. Mineralium Deposita 33, 2–30.CrossRefGoogle Scholar
Li, X, Zhao, K-D, Jiang, S-Y and Palmer, MR (2019) In-situ U-Pb geochronology and sulfur isotopes constrain the metallogenesis of the giant Neves-Corvo deposit, Iberian Pyrite Belt. Ore Geology Reviews 105, 223–35.CrossRefGoogle Scholar
Locutura, J (2011) Descripcion de las mineralizationes de sulfuros massivos de la Zona Sud Portuguesa. In Cartografía de recursos minerales de Andalucía (ed. García-Cortés, A), pp. 108–90. Madrid: IGME-Junta Andalucía.Google Scholar
Ludwig, KR (2009) Isoplot v.4 for Excel 2007. Berkeley, California: Berkeley Geochronological Centre.Google Scholar
Lundin Mining (2013) NI 43-1-1 Technical report for Neves-Corvo Mine and Semblana Deposit, Portugal. http://www.lundinmining.com/i/pdf/Neves-Corvo-TechnicalReport.pdf.Google Scholar
Lundin Mining (2017) NI 43-101 Technical report for the Neves-Corvo Mine, Portugal. https://www.lundinmining.com/site/assets/files/3643/neves-corvo-technical-report.pdf.Google Scholar
Lundin Mining (2019) Reserves and resources. Available at https://www.lundinmining.com/operations/reserves-and-resources/.Google Scholar
Mange, MA and Maurer, HFW (1992) Heavy Minerals in Colour. London: Chapman and Hall, 147 p.CrossRefGoogle Scholar
Matos, JX, Carvalho, J, Represas, P, Batista, MJ, Sousa, P, Ramalho, EC, Marques, F, Morais, I, Albardeiro, L, Gonçalves, P and Dias, P (2020) Geophysical surveys in the Portuguese sector of the Iberian Pyrite Belt: a global overview focused on the massive sulphide exploration and geologic interpretation. Comunicações Geológicas 107, 41–78.Google Scholar
Matos, JX, Pereira, Z, Rosa, C and Oliveira, JT (2014) High resolution stratigraphy of the Phyllite-Quartzite Group in the northwest region of the IPB, Portugal. Comunicações Geológicas 101, 489–93.Google Scholar
Matos, JX, Pereira, Z, Rosa, C, Rosa, D, Oliveira, JT and Relvas, J (2011) Late Strunian age: a key time frame for VMS deposit exploration in the Iberian Pyrite Belt. In Proceedings of 11th Society for Geology Applied to Mineral Deposits Biennial Meeting, 26–29 September 2011, Autofagasta, Chile, pp. 790–92.Google Scholar
Mendes, M, Pereira, Z, Matos, JX, Albardeiro, L, Morais, I, Solá, R, Salgueiro, R, Pacheco, N, Araújo, V, Inverno, C and Oliveira, JT (2020) New insights on the middle Givetian/middle Frasnian palynofloras from the Phyllite-Quartzite Formation in the Neves-Corvo mine region (Iberian Pyrite Belt, Portugal). Revue de Micropaléontologie 68, 1–13. http://doi.org/10.1016/j.revmic.2020.100447 CrossRefGoogle Scholar
Mendes, M, Pereira, Z, Matos, JX, Morais, I, Albardeiro, L, Solá, R, Pacheco, N and Araújo, V (2018) New preliminary data from Phyllite-Quartzite Formation age based on palynomorphs from Middle-Upper Devonian in Neves-Corvo mine region, Iberian Pyrite Belt (Portugal). In Proceedings of X Congresso Nacional de Geologia, S. Miguel Açores. Vulcânica, II. Sao Miguel: Açores, 191–92 pp.Google Scholar
Oliveira, JT (1983) The marine carboniferous of South Portugal: a stratigraphic and sedimentological approach. In The Carboniferous of Portugal (eds de Sousa, MJ Lemos and Oliveira, JT), pp. 3–38. Lisbon: Serviços Geológicos de Portugal, 29.Google Scholar
Oliveira, JT (1990) Stratigraphy and syn-sedimentary tectonism in the South Portuguese Zone. In Pre-Mesozoic Geology of Iberia (eds Dallmeyer, RD and Garcia, E Martinez), pp. 334–47. Berling, Heidelberg: Springer Verlag.CrossRefGoogle Scholar
Oliveira, JT, Carvalho, P, Pereira, Z, Pacheco, N, Fernandes, JP and Korn, D (1997) The stratigraphy of the Neves Corvo Mine Region. In SEG Neves Field Conference. Colorado: Society of Economic Geologists, Guidebook Series 27, 86–87.Google Scholar
Oliveira, JT, Pereira, Z, Carvalho, P, Pacheco, N and Korn, D (2004) Stratigraphy of the tectonically imbricated lithological succession of the Neves-Corvo Mine region, Iberian Pyrite Belt. Implications for the regional basin dynamics. Mineralium Deposita 39, 422–36.CrossRefGoogle Scholar
Oliveira, JT, Quesada, C, Pereira, Z, Matos, JX, Solá, RA, Rosa, D, Albardeiro, L, Díez-Montes, A, Morais, I, Inverno, C, Rosa, C and Relvas, J (2019) South Portuguese Terrane: a continental affinity exotic unit. In The Geology of Iberia: A Geodynamic Approach, Volume 2: The Variscan Cycle (eds Quesada, C and Oliveira, JT), p. 173. Berling, Heidelberg: Springer.CrossRefGoogle Scholar
Oliveira, JT, Relvas, J, Pereira, Z, Matos, JX, Rosa, C, Rosa, D, Munhá, J, Fernandes, P, Jorge, R and Pinho, Á (2013a) Geologia da Zona Sul Portuguesa, com ênfase na estratigrafia e na vulcanologia física, geoquímica e mineralizações da Faixa Piritosa. In Geologia de Portugal Vol. I - Geologia Pré-mesozóica de Portugal (eds Dias, R, Araújo, A, Terrinha, P and Kullberg, JC), pp. 673–767. Lisbon: Escolar Editora.Google Scholar
Oliveira, JT, Romão, J, Matos, JX, Leal, J and Rosa, C (2016) Folha 46-C (Almodôvar) da Carta Geológica de Portugal, à escala 1:50 000, Un. Geologia, Hidrogeologia e Geologia Costeira, Laboratório Nacional de Energia e Geologia, Lisbon.Google Scholar
Oliveira, JT, Rosa, C, Rosa, D, Pereira, Z, Matos, JX, Inverno, C and Andersen, T (2013b) Geology of the Neves-Corvo antiform, Iberian Pyrite Belt, Portugal: New insights from physical volcanology, palynostratigraphy and isotope geochronology studies. Mineralium Deposita 48, 749–66.CrossRefGoogle Scholar
Pacheco, N, Beliz, A, Carvalho, P, Clayton, G and Sevastopoulo, G (1994) Relatório 1º Semestre. Área de prospeção de Neves-Corvo-Corte Gafo. Laboratório Nacional Energia e Geologia, Lisboa, Internal Report no. 13049, 88 pp.Google Scholar
Pereira, Z (1999) Palinoestratigrafia do Sector Sudoeste da Zona Sul Portuguesa. Comunicações Geológicas 86, 25–57.Google Scholar
Pereira, Z, Matos, JX, Batista, MJ, Sóla, R, Salgueiro, R, Oliveira, D, Oliveira, JT, Inverno, C and Rosa, C (2014) Caracterização geológica, estratigráfica e litogeoquímica das unidades geológicas da zona do Algaré, Antiforma do Rosário e da mineralização de sulfuretos maciços da Semblana. Project Report. Lisbon: Relatório Projecto IPB Vectors, LNEG/Lundin Mining, 150 pp.Google Scholar
Pereira, Z, Matos, JX, Fernandes, P and Oliveira, JT (2008) Palynostratigraphy and systematic palynology of the Devonian and Carboniferous successions of the South Portuguese Zone, Portugal. Memórias INETI 34, 1–176.Google Scholar
Pereira, Z, Matos, JX, Rosa, C and Oliveira, JT (2012) Palynostratigraphic importance of the Strunian in the Iberian Pyrite Belt. In Proceedings of the 45th Annual Meeting AASP and CIMP, Kentucky: Lexington, pp. 42–3.Google Scholar
Quesada, C, Braid, JA, Fernandes, P, Ferreira, P, Jorge, RS, Matos, JX, Murphy, JB, Oliveira, JT, Pedro, J and Pereira, Z (2019) SW Iberia Variscan Suture Zone: Oceanic Affinity Units. In The Geology of Iberia: A Geodynamic Approach, Regional Geology Reviews (eds Quesada, C and Oliveira, JT), pp. 131–71. Switzerland: Springer Nature.CrossRefGoogle Scholar
Relvas, J, Barriga, F, Ferreira, A, Noiva, P, Pacheco, N and Barriga, F (2006) Hydrothermal alteration and mineralization in the Neves-Corvo volcanic hosted massive sulphide deposit, Portugal. I Geology, mineralogy, and geochemistry. Economic Geology 101, 753–90.CrossRefGoogle Scholar
Relvas, JMRS, Tassinari, CCG, Munhá, J and Barriga, FJAS (2001) Multiple sources for ore-forming fluids in the Neves-Corvo VHMS deposit of the Iberian Pyrite Belt (Portugal): Strontium, neodymium and lead isotope evidence. Minerallium Deposita 36, 416–27.CrossRefGoogle Scholar
Rosa, C, McPhie, J, Relvas, J, Pereira, Z, Oliveira, JT and Pacheco, N (2008) Volcanic setting of the giant Neves-Corvo massive sulfide deposit, Iberian Pyrite Belt, Portugal. Mineralium Deposita 43, 449–66.CrossRefGoogle Scholar
Rosa, C, Rosa, D, Matos, JX and Relvas, J (2010) The volcanic sedimentary sequence of the Lousal deposit, Iberian Pyrite Belt (Portugal). EGU Geophysical Research Abstracts 12, 2.Google Scholar
Saez, R, Moreno, C and González, F (2011) Black shales and massive sulfide deposits: causal or casual relationships? Insights from Rammelsberg, Tharsis, and Draa Sfar. Mineralium Deposita 46, 585–614.CrossRefGoogle Scholar
Silva, JB, Oliveira, JT and Ribeiro, A (1990) South Portuguese Zone structural outline. In Pre-Mesozoic Geology of Iberia (eds Dallmeyer, RD and Martinez Garcia, E), pp. 348–62. Berling, Heidelberg: Springer Verlag.CrossRefGoogle Scholar
Solá, R, Salgueiro, R, Pereira, Z, Matos, JX, Rosa, C, Araújo, V, Neto, R and Lains, JA (2015) Time span of the volcanic setting of the Neves Corvo VHMS deposit. Congresso Ibérico Geoquímica/XVIII Semana Geoquímica. Lisbon: Laboratório Nacional de Energia e Geologia, 120–23.Google Scholar
Stacey, JS and Kramers, JD (1975) Approximation of terrestrial lead isotope evolution by a two-stage model. Earth and Planetary Science Letters 26, 207–21.CrossRefGoogle Scholar
Streel, M (2009) Upper Devonian miospore and conodont zone correlation in western Europe. In Devonian Change: Case Studies in Palaeogeography and Palaeoecology (ed. P Königshof), pp. 163–76. Geological Society of London, Special Publication no. 314.CrossRefGoogle Scholar
Streel, M, Brice, D, Mistiaen, B (2006) Strunian. Geologica Belgica 9, 105–9.Google Scholar
Streel, M, Higgs, K, Loboziak, S, Riegel, W and Steemans, Ph (1987) Spore stratigraphy and correlation with faunas and floras in the type marine Devonian of the Ardenne-Rhenish regions. Reviews in Palaeobotany and Palynolology 50, 211–29.CrossRefGoogle Scholar
Tornos, F (2006) Environment of formation and styles of volcanogenic massive sulfides: the Iberian Pyrite Belt. Ore Geology Review 28, 259–307.CrossRefGoogle Scholar
Tornos, F and Heinrich, CA (2008) Shale basins, sulfur-deficient ore brines and the formation of exhalative base metal deposits. Chemical Geology 247, 195–207.CrossRefGoogle Scholar
Wood, GD, Gabriel, AM and Lawson, JC (1996) Palynological techniques – processing and microscopy. In Palynology: Principles and Applications (eds Jansonius, J and McGregor, DC), Vol. 1, pp. 29–50. Texas: American Association of Stratigraphic Palynologists.Google Scholar
Yavuz, S, Kinkela, J, Dzunic, A, Penney, M, Neto, R, Araújo, V, Ziramov, S, Pevzner, R and Urosevic, M (2015) Physical property analysis and preserved relative amplitude processed seismic imaging of volcanogenic massive sulfides - A case study from Neves-Corvo, Portugal. Geophysical Prospecting 63, 798–812.CrossRefGoogle Scholar
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