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Sao Domingos Mine
The São Domingos Mine is a deserted open-pit mine in Corte do Pinto, Alentejo, Portugal. This site is one of the volcanogenic massive sulfide ore deposits in the Iberian Pyrite Belt, which extends from the southern Portugal into Spain. It was the first place in Portugal to have electric lighting.
==History==
The Romans mined in the São Domingos area for gold and silver for about 400 years. Mining stopped here when the Romans left.
In 1854 Nicolau Biava, an Italian miner from Piedmont, staked a claim to the mine; ownership then passed to a French syndicate. In 1855 mining was resumed, as the international demand for copper grew during the Industrial Revolution. In 1859 the mining concession was leased for 50 years to an English mining company, Mason and Barry, run by Sir Francis Barry, 1st Baronet and his brother-in-law James Mason, because of their industrial mining expertise. The nearby port of Pomarão was inaugurated the same year. Known as Pomaron in England, this inland port was specially constructed on the River Guadiana, which here forms the border with Spain, to serve the mine. In 1862 an railway, of three foot-six inch gauge, was opened connecting the mine to Pomarão. From Pomarão ore was exported, mostly to England, by ship. Pomarão was destroyed in a disastrous flood on 6–8 December 1876, and subsequently rebuilt.
Mason and Barry switched from tunnel mining to open-pit mining in 1867. Copper ore was the main product of the mine; in addition, pyrite was mined as a source of sulphur. About 25 megatons of ore had been extracted when the mine was closed in 1966.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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