آخرین محصولات

Mechanochemical synthesis of tetrahedrite materials using …

Approximately half of one of the most important volcanogenic massive sulfide districts in the world, the Iberian Pyrite Belt (IPB), is located in southern Portugal, where tetrahedrite-tennantite mineral series is one of the naturally occurring compounds (de Oliveira et al., 2019). The main objective of this study is to exploit the feasibility ...

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A new 3D geological model and interpretation of

The Rio Tinto volcanogenic massive sulfide (VMS) deposit is located in the Spanish segment of the Iberian Pyrite Belt and is hosted by felsic porphyritic volcanic rocks and tuffs. Computer generated 3D modeling of the different orebodies and host rocks has been carried out using data from around 3000 drill-core logs, allowing us to build 93 ...

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Magmatic Evolution and Tectonic Setting of the Iberian Pyrite Belt

The Iberian Pyrite Belt is one of the four Variscan structural units distinguished by Quesada, (1991) in the South Portuguese Zone (Figs 1 and 2). It is bounded to the north by the Pulo do Lobo oceanic terrane and to the south by the Baixo Alentejo Flysch Group. The main feature of the Iberian Pyrite Belt is the occurrence of …

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Geology and VMS Deposits of the Iberian Pyrite Belt

The Iberian Pyrite Belt (IPB) corresponds to an area of Devonian-Carboniferous volcanic and sedimentary rocks containing massive polymetallic sulfide …

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Heavy Metal Pollution in Soils Around the Abandoned Mine

The Iberian Pyrite Belt (IPB), probably the largest volcanogenic massive sulfide (VMS) ore province in the world, is located in the southwestern corner of the Iberian Peninsula, and comprises a great part of the South Portuguese Zone (SPZ) of the Variscan Massif of Iberia (Fig. 1).

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(PDF) minerals Mineral Inventory of the Algares 30-Level Adit

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 ...

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Spain & Portugal: The Iberian Pyrite Belt is an unparalleled …

The Iberian Pyrite Belt is host to some of the world's largest VMS deposits and mines such as Neves-Corvo (Lundin Mining Corp. [LUN-TSX; LUMI-Sweden]), Aguas Tenidas (Trafigura Mining Group) and Aljustrel …

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SE

Abstract. In this work we have performed a detailed study of vectors to ore to a representative volcanic-rock-hosted replacive volcanogenic massive sulfide (VMS) deposit located in the northern Iberian Pyrite Belt (Spain), the Aguas Teñidas deposit. The investigated vectors include the following: (1) mineralogical zoning, (2) host sequence …

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The Iberian type of volcano-sedimentary massive sulphide deposits

Abstract The Iberian Pyrite Belt, located in the SW Iberian Peninsula, contains many Paleozoic giant and supergiant massive sulphide deposits, including the largest individual massive sulphide bodies on Earth. Total ore reserves exceed 1500 Mt, distributed in eight supergiant deposits (>100 Mt) and a number of other smaller …

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Yeast diversity in the extreme acidic environments of the Iberian

In the Iberian Pyrite Belt (IPB), acid rock drainage gives rise to aquatic habitats with low pH and high concentrations of heavy metals, a situation that causes important environmental problems. We investigated the occurrence and diversity of yeasts in two localities of the IPB: São Domingos (Portugal) and Rio Tinto (Spain).

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Ascendant Resources Inc.

Ascendant Resources is a Toronto-based mining company focused on the exploration and development of the highly prospective Lagoa Salgada VMS project located on the prolific Iberian Pyrite Belt in Portugal. The Lagoa Salgada project is a high-grade polymetallic project, demonstrating a typical mineralization endowment of zinc, copper, lead, tin ...

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Indium and selenium distribution in the Neves-Corvo deposit, …

Indium and selenium distribution in the Neves-Corvo deposit, Iberian Pyrite Belt, Portugal J. R. S. CARVALHO1,2,*,J.M.R.S.RELVAS1,A.M.M.PINTO1,M.FRENZEL3,J.KRAUSE3,J ...

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(PDF) Heavy Metal Pollution in Soils Around the

This paper investigates the pollution load of selected trace elements in 32 soil samples collected around 21 different mining areas of the Iberian Pyrite Belt (Southwest Spain), integrating ...

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Massive Sulfide Ores in the Iberian Pyrite Belt: Mineralogical and

The Iberian Pyrite Belt (IPB) is recognized as having one of the major concentrations of volcanogenic massive sulfide (VMS) deposits on Earth. Original resources of about 2000 Mt of massive ...

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Emerita Resources

Emerita Resources - Developing the Iberian Pyrite Belt - Iberian Belt West Emerita is a Canadian natural resource company engaged in the acquisition, exploration and development of mineral properties in …

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Laser ablation-ICPMS analysis of trace elements in pyrite from …

Pyrite is the most common mineral in volcanogenic massive sulphide (VMS) deposits worldwide (Franklin et al. 1981, 2005; Lydon 1988).This is especially relevant in the shale-hosted deposits of the southern Iberian Pyrite Belt (IPB), among which the giant Tharsis deposit (> 100 Mt) is one of the best examples.

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Formation of recent Pb-Ag-Au mineralization by potential sub

The massive sulphide orebody is similar to those elsewhere in the southern part of the Iberian Pyrite Belt 9,10 that formed in the latest Famennian (ca. 360 Ma) and subsequently were folded and ...

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The volcanic-hosted massive sulphide deposits of the Iberian Pyrite Belt

The Iberian Pyrite Belt (IPB) has, over the past decade, been an area of renewed mining activity and scienti®c research that has resulted in a wealth of new data and new geological and metallogenic concepts that are succinctly presented in this Thematic Issue. The reason for this interest in the IPB, which forms part of the Hercynian orogenic ...

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Geology, Geochemistry, and Geochronology of the Giant

Geochemistry and U–Pb dating of felsic volcanic rocks in the Riotinto–Nerva unit, Iberian Pyrite Belt, Spain: crustal thinning, progressive crustal melting and massive sulphide genesis Journal of the Geological Society. Pb-Nd-Sr Isotope Geochemistry of Metapelites from the Iberian Pyrite Belt and Its Relevance to Provenance Analysis and ...

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Introduction and Geological Setting of the Iberian Pyrite Belt

The 250 × 20–70 km Iberian Pyrite Belt (IPB) is a Variscan metallogenic province in SW Portugal and Spain hosting the largest concentration of massive sulphide deposits worldwide.

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Massive Sulfide Ores in the Iberian Pyrite Belt: Mineralogical and

The Iberian Pyrite Belt (IPB) is recognized as having one of the major concentrations of volcanogenic massive sulfide (VMS) deposits on Earth. Original resources of about 2000 Mt of massive sulfides have been reported in the province. Recent classifications have considered the IPB deposits as the bimodal siliciclastic subtype, …

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Formation of the Tharsis Massive Sulfide Deposit, Iberian Pyrite Belt

The giant Tharsis massive sulfide deposit is one of the largest shale-hosted orebodies in the Iberian Pyrite Belt. It consists of several ore lenses located in the lowermost VSC and overlying a thick siliciclastic sequence Phyllite-Quartzite Group. The ore lenses are up to 1,500 m long, 130 m thick, and tectonically stacked within shale with ...

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Environment of formation and styles of volcanogenic

The Iberian Pyrite Belt forms a metallogenic province formed in a rather restricted and thin volcanic sequence deposited in a pull-apart basin within a transpressive orogen. On a regional scale, the presence of a thick sedimentary sequence beneath the volcanic rocks is interpreted as a key feature for explaining the main characteristics of the ...

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(PDF) Acid Mine Drainage in the Iberian Pyrite Belt: an Overview …

Examples of acid mine drainage generation in mines sites of the Iberian Pyrite Belt: (a) Esperanza mine portal (pH 2.6); (b) Lomero mine portal (pH 2.9); (c) Seepage from a waste pile in ...

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Vectors to ore in replacive volcanogenic massive

The Iberian Pyrite Belt (IPB), located in the SW Iberian Peninsula (Fig. 1), is arguably the largest known accumulation of VMS in the earth's crust, and represents an important mining region of Spain and a key base metal producer for Europe (Tornos, 2006).

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The Iberian type of volcano-sedimentary massive …

The Iberian Pyrite Belt, located in the SW Iberian Peninsula, contains many Paleozoic giant and supergiant massive sulphide deposits, including the largest individual massive sulphide bodies on ...

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Unmanned Aerial System-Based Multispectral Water Quality

Few studies have assessed mining-associated water pollution using spectral characteristics. We used high-resolution multispectral data acquired by unmanned aerial drones combined with in situ chemical data to assess water quality parameters in 12 relatively small water bodies located in the Tharsis complex, an abandoned mining area …

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Mineral quantification at deposit scale using drill

The Iberian Pyrite Belt (IPB) represents one of the most outstanding ore provinces in Europe in terms of metals concentrations, and one of the largest concentrations of sulphides in the Earth crust. Covering an E-W elongated area of 240 km long by 30–60 km wide between Portugal and Spain, the IPB contains over 100 known polymetallic …

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The Removal of Dissolved Metals by Hydroxysulphate

This study examines the removal of dissolved metals during the oxidation and neutralization of five acid mine drainage (AMD) waters from La Zarza, Lomero, Esperanza, Corta Atalaya and Poderosa mines (Iberian Pyrite Belt, Huelva, Spain). These waters were selected to cover the spectrum of pH (2.2–3.5) and chemical composition (e.g., 319–2,103 mg/L Fe; …

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Geochronology of the Iberian Pyrite Belt and the Sierra Norte …

Our results suggest that the emplacement of the pyrite belt was both pre- and syncollisional, and was initiated primarily by lithospheric delamination related to …

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