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Lousal Mine, Azinheira dos Barros e São Mamede do Sádão, Grândola, Setúbal District, Portugal

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Latitude & Longitude (WGS84): 38° 4' North , 8° 28' West
Latitude & Longitude (decimal): 38.06694,-8.46694
GeoHash:G#: eycbx3fs1
Other regions containing this locality:Iberian Peninsula
Locality type:Mine
Köppen climate type:Csa : Hot-summer Mediterranean climate
Name(s) in local language(s):Mina do Lousal (ou Louzal), Azinheira dos Barros e S. Mamede do Sádão, Grândola, Distrito de Setúbal, Portugal

Pyrite mine. Closed in 1988.
Since about 200x, the mine is in rehabilitation to acid mine drainage control (Silva et al. 2009).

Registered mining concessions (up to 1962):
No. 1084 Louzal no. 2 (Cu), registered on 26-01-1922
No. 1085 Louzal no. 3 (Cu), registered on 26-01-1922
No. 368 Louzal Novo (Cu), registered on 09-01-1904
No. 312 Louzal (Cu), registered on 03-01-1900

LOUSAL - mining concessions and concession agreements:

1885-1899 - concessão A. Manuel e mais tarde Alfredo Masson.
1900 - Louzal (conc. no. 312) – Guilherme Ferreira Pinto Basto e Waldemar d'Orey.
1904 - Louzal Novo (conc. no. 368).
1910 – Empress Mina dos Barros.
1915 – Henrique Burnay & Companhia.
1922 – Louzal no. 2 (conc. no. 1084), Louzal no. 3 (conc. no. 1085). Outras concessões da mesma empresa situadas na região E e NE do Lousal: Sítio do Montado (conc. no. 1086) e Cerro dos Arneirões (conc. no. 1107).
1934 – Société Anonyme Belge des Mines d'Aljustrel.
1936-1988 – Mines et Industries S.A., Grupo SAPEC.

in: Matos, J.X.; Oliveira, V. (2003) - Mina do Lousal (Faixa Piritosa Ibérica) - Percurso geológico e mineiro pelas cortas e galerias da antiga mina. IGME, Pub. Museo Geominero, no.2, Espanha, pp. 117-128.

From 1900 to 1988, copper pyrites were extracted from Lousal mines, located between Canal Caveira and Ermidas do Sado. After the mines were closed, Frederic Velge Foundation was created, as a result of a partnership of the company that owns the mine and Grândola City Hall. The Foundation has a cultural, scientific and pedagogical project. Mining Museum intends to preserve the memory and the knowledge of generations of workers who excavated Lousal mines, converted nowadays in a sort of archaeological site. In the Mining Museum you can watch and learn how a mine works through the testimonies of the work, which was carried out here for decades. This museum is housed in the ancient mining facilities, actually the first one of this sort in Portugal. It was officially opened on may 20th 2001. You should especially draw your close attention to the work structures that were totally restored to welcome visitors: facilities, excavations, mine galleries and even the engines of the electric power station that used to supply not only the mine, but also local inhabitants.

Mineral List

21 valid minerals.

Regional Geology

This geological map and associated information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This does not necessarily represent the complete geology at this locality but it gives a background for the region in which it is found.

Click on geological units on the map for more information. Click here to view full-screen map on Macrostrat.org

5.333 - 23.03 Ma

ID: 3185813
Cenozoic sedimentary rocks

Age: Miocene (5.333 - 23.03 Ma)

Lithology: Sedimentary rocks

Reference: Chorlton, L.B. Generalized geology of the world: bedrock domains and major faults in GIS format: a small-scale world geology map with an extended geological attribute database. doi: 10.4095/223767. Geological Survey of Canada, Open File 5529. [154]

Early Carboniferous - Late Devonian
323.2 - 382.7 Ma

ID: 3141275
Late Devonian meta-rhyolite

Age: Paleozoic (323.2 - 382.7 Ma)

Description: low grade metamorphic

Lithology: Major:{meta-rhyolite}, Minor{meta-basalt group,shale/slate,quartzite}

Reference: Asch, K. The 1:5M International Geological Map of Europe and Adjacent Areas: Development and Implementation of a GIS-enabled Concept. Geologisches Jahrbuch, SA 3. [147]

Data and map coding provided by Macrostrat.org, used under Creative Commons Attribution 4.0 License

This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.


Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
- de Oliveira DPS, Matos JX, Rosa CJP, Rosa DRN, Figueiredo MO, Silva TP, Guimarães F, Carvalho J, Pinto A, Relvas J, Reiser F.(in press) The Lagoa Salgada orebody, Iberian Pyrite Belt,Portugal. Econ Geol
- Daniel P. S. de Oliveira et al. (2011): in the Lousal Mine, Iberian Pyrite Belt, Portugal. 11th SGA Biennial "Meeting Let’s Talk Ore Deposits", 26-29th September 2011, Antofagasta, Chile, http://repositorio.lneg.pt/bitstream/10400.9/2223/1/35012.pdf
- Daniel P. S. de Oliveira, Carlos J. P. Rosa, Fernanda M. G. Guimarães, João X. Matos, Diogo R. N. Rosa, Pereira, Z., VCS Frias, J. M. Castelo Branco (2013): Late-stage Gold (Electrum) in the Lousal Mine, Iberian Pyrite Belt, Portugal. 12th SGA Biennial Meeting, Uppsala, Sweden, 12-15 August 2013, http://repositorio.lneg.pt/bitstream/10400.9/2175/1/35968.pdf
- Leistel JM, Marcoux E, Deschamps Y, Joubert M (1998) Antithetic behaviour of gold in the volcanogenic massive sulfide deposits of the Iberian Pyrite Belt. Miner Deposita 33:82-97
- Matos JX, Oliveira V (2003) Mina do Lousal (Faixa Piritosa Ibérica) - Percurso geológico e mineiro pelas cortas e galerias da antiga mina. IGME, Pub. Museo Geominero, nº 2, Madrid, pp 117-128
- Matos JX, Relvas JMRS (2006) Mina do Lousal (Faixa Piritosa Ibérica). Livro Guia Excursão C.4.1, VII Congresso Nacional de Geologia, Estremoz, Univ. Évora, Portugal, pp 23-25
- Matos JX, Rosa CJP, Pereira Z, de Oliveira D, Rosa DRN, Sofia A, Relvas JMS, Oliveira, JT (in prep) Geology and Genesis of the Lousal Volcanic-Sediment-Hosted Massive Sulfide Deposit, Iberian Pyrite Belt, Portugal
- Oliveira JT, Pereira Z, Rosa CJ, Rosa D, Matos JX (2005) Recent advances in the study of the stratigraphy and the magmatism of the Iberian Pyrite Belt, Portugal. In: Carosi R, Dias R, Iacopini D, Rosenbaum G (eds) The southern Variscan belt. Journal of the Virtual Explorer, Electronic Edition 19/9, 1441-8142
- Reiser FKM, Rosa DRN, Pinto AMM, Carvalho JRS, Matos JX, Guimarães FMG, Alves LC, de Oliveira DPS (in press) Mineralogy and Geochemistry of Tin- and Germanium bearing Copper Ore from the Barrigão Remobilised Vein Deposit, Iberian Pyrite Belt, Portugal. Int Geol Rev DOI: 10.1080/00206811003683168
- Rosa C, Rosa D, Matos J, Relvas J (2010) The volcanicsedimentary sequence of the Lousal deposit, Iberian Pyrite Belt (Portugal). Geophysical Research Abstracts, EGU General Assembly, 12, EGU2010- 11000.
- Silva EAF, Bobos I, Matos JX, Patinha C, Reis AP and Fonseca EC (2009) Mineralogy and geochemistry of trace metals and REE in volcanic massive sulfide host rocks, stream sediments, stream waters and acid mine drainage from the Lousal mine area (Iberian Pyrite Belt, Portugal). Appl Geochem 24:383-401
- Strauss G (1970) Sobre la geologia de la provincia piritífera del SW de la Península Ibérica y de sus yacimientos, en especial sobre la mina de pirita de Lousal (Portugal). Mem ITGE T. 77, 266 p
- Strauss, GK, Beck, JS (1990) Gold mineralisations in the SW Iberian Pyrite Belt. Miner Deposita 25:237-245
- Strauss GK, Madel J (1974) Geology of massive sulphide deposits in the Spanish-Portuguese Pyrite Belt. Geol Rund 63:191-211
Bello, A. de Oliveira, 1910, Minéraux Portugais - Bulletin de la Société Portugaise des Sciences Naturelles, Vol IV, fasc. 2, Livraria Ferin, Lisboa

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