João Xavier Matos
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View article: COLD: Control and Optimization of Layer Deposition in Large-Scale Additive Manufacturing
COLD: Control and Optimization of Layer Deposition in Large-Scale Additive Manufacturing Open
Large-scale thermoplastic 3D printing is an emerging technology that enables cheaper and faster real-scale prototyping and rapid tooling. However, it still presents limitations that can lead to deformations in printed parts due to inadequa…
View article: Geochemistry of the volcano-sedimentary complex of the Algarve Basin (Silves-Ayamonte, SW Iberia)
Geochemistry of the volcano-sedimentary complex of the Algarve Basin (Silves-Ayamonte, SW Iberia) Open
The Volcano-Sedimentary Complex of the Algarve basin (south of the Iberian Peninsula) belongs to the Large Igneous Province of the Central Atlantic Magmatic Province (CAMP), which developed c.200 Ma following the start of the breakup of Pa…
View article: PRÁTICA PEDAGÓGICA PARA ASSIMILAR CONCEITOS DE ECOLOGIA: UM ESTUDO NO CENTRO UNIVERSITÁRIO UNIÚNICA
PRÁTICA PEDAGÓGICA PARA ASSIMILAR CONCEITOS DE ECOLOGIA: UM ESTUDO NO CENTRO UNIVERSITÁRIO UNIÚNICA Open
View article: Record-Breaking Sargassum Landing on the Brazilian Amazon Coast
Record-Breaking Sargassum Landing on the Brazilian Amazon Coast Open
View article: Trend detection and depletion effects evidence in time series of groundwater levels in the southern sector of the left bank of the Tagus-Sado Basin (Portugal, Iberian Peninsula)
Trend detection and depletion effects evidence in time series of groundwater levels in the southern sector of the left bank of the Tagus-Sado Basin (Portugal, Iberian Peninsula) Open
In the last 20 years in Portugal, water resources have been affected to the point that water storage has decreased by 20% since 2000. Creating strategies to manage water resources requires a comprehensive understanding of the factors influ…
View article: Unlocking the Secondary Critical Raw Material Potential of Historical Mine Sites, Lousal Mine, Southern Portugal
Unlocking the Secondary Critical Raw Material Potential of Historical Mine Sites, Lousal Mine, Southern Portugal Open
A steady supply of mineral raw materials is vital for the transition to a low-carbon, circular economy. The number of active mines in Europe has severely declined over the last century and half, giving rise to many abandoned mining waste s…
View article: Latest Strunian Palynomorph Assemblages and Their Role in the Neves Formation Depositional Environment - the Neves-Corvo Mine Case Study (Iberian Pyrite Belt, Portugal)
Latest Strunian Palynomorph Assemblages and Their Role in the Neves Formation Depositional Environment - the Neves-Corvo Mine Case Study (Iberian Pyrite Belt, Portugal) Open
View article: Muon tomography with Resistive Plate Chambers for geological characterization
Muon tomography with Resistive Plate Chambers for geological characterization Open
View article: Geophysical characterization of the Cercal Paleozoic structure, Iberian Pyrite Belt, from a mineral exploration perspective
Geophysical characterization of the Cercal Paleozoic structure, Iberian Pyrite Belt, from a mineral exploration perspective Open
View article: Biostratigraphic and structural research in the Guedelhinha–Lançadoiras–Algaré sector in the context of the geology of the Neves–Corvo mine region, Iberian Pyrite Belt
Biostratigraphic and structural research in the Guedelhinha–Lançadoiras–Algaré sector in the context of the geology of the Neves–Corvo mine region, Iberian Pyrite Belt Open
View article: Time-space evolution of Iberian Pyrite Belt igneous activity: Volcanic and plutonic lineaments, geochronology, ore horizons and stratigraphic constraints
Time-space evolution of Iberian Pyrite Belt igneous activity: Volcanic and plutonic lineaments, geochronology, ore horizons and stratigraphic constraints Open
View article: Biostratigraphic and Structural Research of the Guedelhinha-Lançadoiras-Algaré Sector in the Context of the Geology of the Neves-Corvo Mine Region, Iberian Pyrite Belt
Biostratigraphic and Structural Research of the Guedelhinha-Lançadoiras-Algaré Sector in the Context of the Geology of the Neves-Corvo Mine Region, Iberian Pyrite Belt Open
View article: Immobilisation of potentially toxic elements by natural sorbents: case study of spolic technosol from São Domingos Cu-ore deposit (Portugal)
Immobilisation of potentially toxic elements by natural sorbents: case study of spolic technosol from São Domingos Cu-ore deposit (Portugal) Open
<p>Ore-mining industry produces a waste, which belongs to the main sources of potentially toxic elements (PTEs). One of the initial steps necessary for remediation project of contaminated sites is the research of PTEs mobile forms th…
View article: Muography for Underground Geological Surveys: OngoingApplication at the Lousal Mine (Iberian Pyrite Belt, Portugal)
Muography for Underground Geological Surveys: OngoingApplication at the Lousal Mine (Iberian Pyrite Belt, Portugal) Open
The use of muons for geophysical surveys has been proved successful in numerous projects around the planet. The use of muography in an underground environment has an easy side, when compared to the surface, due to the absence of the backgr…
View article: Muography in the University and in the Museum
Muography in the University and in the Museum Open
The LouMu team joins together specialists in particle detectors and in cosmic ray analyses, geophysicists and science communicators to muograph an underground gallery of an old mine, now open to visitors of a science museum. The muon teles…
View article: A drill-hole, geological and geophysical data-based 3D model for target generation in Neves-Corvo mine region, Portugal
A drill-hole, geological and geophysical data-based 3D model for target generation in Neves-Corvo mine region, Portugal Open
View article: Orange Pickeringite from the Algares 30-Level Adit, Aljustrel Mine, Iberian Pyrite Belt, Portugal
Orange Pickeringite from the Algares 30-Level Adit, Aljustrel Mine, Iberian Pyrite Belt, Portugal Open
The sheltered environment of the Algares +30 level adit (underground mine gallery) contributes to the preservation of secondary water-soluble minerals formed on the tunnel walls. The massive sulphide and related stockwork zone are hosted b…
View article: 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
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 Open
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. Geolo…
View article: COMPARISON OF SOIL CONTAMINATION AT THE SELECTED EUROPEAN COPPER MINES
COMPARISON OF SOIL CONTAMINATION AT THE SELECTED EUROPEAN COPPER MINES Open
This article reports the results of a study concerning contamination of the dump-fields by potentially toxic elements at five abandoned copper mines: Ľubietová, Špania Dolina (Slovakia), Libiola, Caporciano (Italy) and São Domingos (Portug…
View article: Mineral Inventory of the Algares 30-Level Adit, Aljustrel Mine, Iberian Pyrite Belt, Portugal
Mineral Inventory of the Algares 30-Level Adit, Aljustrel Mine, Iberian Pyrite Belt, Portugal Open
Mining activity in Algares (Aljustrel Mine, Portuguese sector of the Iberian Pyrite Belt, IPB) stems prior to Roman times. As the orebody is vertical and relatively thin, mining was carried out mainly along underground adits (galleries). N…
View article: The South Portuguese Zone 1/400 000 LNEG-IGME-Junta de Andalusia common mapping program. A contribution for the Iberian Pyrite Belt VHMS exploration in Portugal and Spain
The South Portuguese Zone 1/400 000 LNEG-IGME-Junta de Andalusia common mapping program. A contribution for the Iberian Pyrite Belt VHMS exploration in Portugal and Spain Open
<p>A regional South Portuguese Zone (SPZ) mapping and stratigraphic program in SW Iberia is presented. It is being developed by LNEG and IGME and financed by the GEO_FPI Project (www.geo-fpi.eu).</p><p>The SPZ is the sout…
View article: Reply to “Comment on «Stratigraphy of the Northern Pulo do Lobo Domain, SW Iberia Variscides: A palynological contribution» by Zélia Pereira et al. (2018) – Geobios 51, 491–506”
Reply to “Comment on «Stratigraphy of the Northern Pulo do Lobo Domain, SW Iberia Variscides: A palynological contribution» by Zélia Pereira et al. (2018) – Geobios 51, 491–506” Open
View article: SW Iberia Variscan Suture Zone: Oceanic Affinity Units
SW Iberia Variscan Suture Zone: Oceanic Affinity Units Open
View article: 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 Open
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. Consideri…
View article: Comparison of heavy-metal bioaccumulation properties in &lt;i&gt;Pinus&lt;/i&gt; sp. and &lt;i&gt;Quercus&lt;/i&gt; sp. in selected European Cu deposits
Comparison of heavy-metal bioaccumulation properties in <i>Pinus</i> sp. and <i>Quercus</i> sp. in selected European Cu deposits Open
Heavy-metal contamination of Pinus pinaster, P. sylvestris, Quercus robur, and Q. rotundifolium was studied in four abandoned historic Cu deposits from Italy (Libiola, Caporciano), Portugal (São Domingos), and Slovakia (L'ubietová). The hi…
View article: A importância da geoquímica de solos em prospeção, a missão do LNEG
A importância da geoquímica de solos em prospeção, a missão do LNEG Open
Workshop comemorativo do Ano Internacional dos Solos, uma iniciativa do Laboratorio Nacional de
Energia e Geologia, Comite IGCP da Unesco e Centro Ciencia Viva do Lousal.
View article: An integrative assessment of environmental degradation of Caveira abandoned mine area (Southern Portugal)
An integrative assessment of environmental degradation of Caveira abandoned mine area (Southern Portugal) Open
Since the end of the 1990s the Portuguese Iberian Pyrite Belt (IPB) is a typical European post-mining region with significant problems related to acid mine drainage (AMD), metal dispersion, mine waste management and unsafe mining infra-str…
View article: Geochemistry of soils and stream sediments in the NE border of the Iberian Pyrite Belt: Implications to Mineral Exploration
Geochemistry of soils and stream sediments in the NE border of the Iberian Pyrite Belt: Implications to Mineral Exploration Open
Workshop comemorativo do Ano Internacional dos Solos, uma iniciativa do Laboratório Nacional
\nde Energia e Geologia, Comité IGCP da Unesco e Centro Ciência Viva do Lousal.