File:Tanques do cemento de cobre em Aljustrel - Album Alentejano 1931.png
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Português: Tanques para a produção de cemento de cobre, situados na área de Algares, que faziam parte do complexo mineiro de Aljustrel, no Sul de Portugal. Nestes tanques colocava-se água rica em cobre e sucata de ferro, fazendo uma reacção química e gerando no fundo uma camada rica em cobre, conhecida como cemento. A fotografia foi provavelmente tirada na década de 1930.
O sinal + indica o local onde foram encontradas escórias de mineração do período romano, e onde foi descoberta uma das famosas tábuas romanas de bronze de Aljustrel, onde estavam escritas várias regras sobre a exploração mineira. Esta imagem foi retirada da obra Album Alentejano: Distrito de Beja, publicada em 1931, e digitalizada pela Biblioteca Digital do Alentejo.English: Ponds for the production of copper cement, located in the area of Algares, in the Aljustrel mining complex, in southern Portugal. On this ponds water rich in copper was deposited next to iron scrap, where by a chemical reaction on the bottom was formed a layer rich in copper, known as cement. The photograph was probably taken in the 1930s.
The + signal indicates the location of a slag heap from the roman period, where was found one of the famous roman bronze tablets do Aljustrel, where were written several rules about mining. This image was taken from the book Album Alentejano: Distrito de Beja, published in 1931, and scanned by Biblioteca Digital do Alentejo. |
| Date | 1930s |
| Source | https://www.bdalentejo.net/BDAObra/BDADigital/Obra.aspx?id=229 |
| Author | Unknown author |
| Object location |  | View this and other nearby images on: OpenStreetMap |  |
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This work is in the public domain both in Portugal and in the United States because it was first published in Portugal (and not published in the U.S. within 30 days) and it was first published before 1 March 1989 without complying with U.S. copyright formalities, such as copyright notice and it is one of the following:
For background information, see the explanations on Non-U.S. copyrights.
As of 1 January 1996, the following were in the public domain in Portugal: works whose author died before 1946; anonymous works, works deemed to be anonymous, or works by a collective person whose authors were not individually identified, first published or disclosed before 1946; photographic works, works deemed to be photographic works or works of applied art created before 1 July 1970; news articles or economic, political or religious articles, published or disclosed before 1996, provided that rights have not been specifically reserved and mentions, wherever possible, the name of the author and of the publisher, of the title of the work and other elements enabling it to be identified. |
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 04:27, 11 September 2022 | | 480 × 355 (257 KB) | Ajpvalente (talk | contribs) | Uploaded a work by {{unknown|author}} from https://www.bdalentejo.net/BDAObra/BDADigital/Obra.aspx?id=229 with UploadWizard |
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