Subsurface mapping in the Iberian Pyrite Belt using seismic reflection profiling and potential-field data

Carvalho, João P. G.; Inverno, Carlos; Matos, João Xavier; Rosa, Carlos J. P.; Granado, Ilario Eing; Branch, Tim; Represas, Patrícia; Carabaneanu, Livia; Matias, L.; Sousa, Pedro

doi:10.1007/s00531-016-1340-1

Cited by 10 publications

(1 citation statement)

References 52 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The giant deposit (>400 Mt) is represented by massive and stockwork ores (Batista et al 2014;Carvalho et al 2017) mined in the following ore lenses: Neves, Corvo, Graça, Zambujal, and Lombador. It was discovered in 1977 through a gravimetric survey, since the massive sulfides have higher density than the host rocks.…”

Section: Mineralization Of the Neves-corvo Depositmentioning

confidence: 99%

Combined study of mineral deposits and deep geothermal for energy production or urban heating – Comparison between the Portuguese (Neves-Corvo) and the Hungarian (Recsk) case studies

Sas

Osvald

Ramalho

et al. 2018

Central European Geology

Self Cite

View full text Add to dashboard Cite

Energy and metals are essential resources in the 21st century and with the economic and technical development are more and more required. The fulfilling of these requirements leads to the need to produce both more ore and energy. Considering these goals, the project CHPM2030 ("Combined Heat, Power and Metal extraction") was launched in January 2016, focused on the characterization of European mining regions that can be linked to both metal extraction and renewable energy production. The aim of this project is to convert ultra-deep metallic mineral formations into an "orebody-enhanced geothermal system" to coproduce energy and metals. This study will focus on two mining areas (Recsk in Hungary and Neves-Corvo in Portugal), considered CHPM2030 case studies, comparing them regarding mineral (ore) and geothermal potential in terms of heat-flow density values and their implication in temperatures in depth estimations. Especially, when it concerns geothermal energy, the surface demand is an important factor to consider, so wider studies are required.

show abstract

Section: Mineralization Of the Neves-corvo Depositmentioning

confidence: 99%

Combined study of mineral deposits and deep geothermal for energy production or urban heating – Comparison between the Portuguese (Neves-Corvo) and the Hungarian (Recsk) case studies

Sas

Osvald

Ramalho

et al. 2018

Central European Geology

Self Cite

View full text Add to dashboard Cite

show abstract

South Portuguese Terrane: A Continental Affinity Exotic Unit

Oliveira

Quesada

Pereira

et al. 2019

Regional Geology Reviews

View full text Add to dashboard Cite

From source to surface: clues from garnet-bearing Carboniferous silicic volcanic rocks, Iberian Pyrite Belt, Portugal

Cravinho,

Rosa,

Relvas

et al. 2024

Contrib Mineral Petrol

View full text Add to dashboard Cite

This work investigates the relationships between partial melting, melt extraction, pluton growth and silicic volcanism in garnet-bearing felsic volcanic rocks that were extruded in the Iberian Pyrite Belt, at ca. 345 Ma. The garnets are of peritectic origin, displaying textural and chemical features of disequilibrium crystallization during partial melting reactions involving biotite at high temperatures (up to 870 °C) in the middle-lower crust. Major element composition suggests compositional equilibrium with the entrained and pinitized peritectic cordierite, but reveals some subsequent homogenization by diffusion. Trace element maps and spot analyses of garnet show, nonetheless, significant trace element variations, reflecting biotite and Y-REE-P-rich accessory phase breakdown during partial melting reactions. Peritectic garnet and cordierite growth resulted in the preservation of Th- and Y-rich prograde suprasolidus monazite, which constrains the timing of partial melting of the metapelitic protolith at ca. 356.8 ± 2.4 Ma. The zircon cargo further shows that a significant amount of zircon crystals from previously crystallized felsic melts were also remobilized and erupted. These were likely stored in an upper crustal pluton that grew episodically since ca. 390 Ma during voluminous melt generation periods within the middle to lower crust, which also resulted in voluminous volcanism. The geochemical trends of the felsic volcanic rocks reflect the entrainment of xenoliths of peritectic garnet, cordierite and feldspar, and as such, the garnet-bearing felsic volcanic rocks represent an erupted mixture of a lower-temperature (ca. 770 °C) silicic melt and autocrysts, and peritectic phases and zircon crystals from previously crystallized and stored felsic melts.

show abstract

Subsurface mapping in the Iberian Pyrite Belt using seismic reflection profiling and potential-field data

Cited by 10 publications

References 52 publications

Combined study of mineral deposits and deep geothermal for energy production or urban heating – Comparison between the Portuguese (Neves-Corvo) and the Hungarian (Recsk) case studies

Combined study of mineral deposits and deep geothermal for energy production or urban heating – Comparison between the Portuguese (Neves-Corvo) and the Hungarian (Recsk) case studies

South Portuguese Terrane: A Continental Affinity Exotic Unit

From source to surface: clues from garnet-bearing Carboniferous silicic volcanic rocks, Iberian Pyrite Belt, Portugal

Contact Info

Product

Resources

About