By Leonard Unthank Salkield (auth.), Maurice J. Cahalan (eds.)

ISBN-10: 9400933770

ISBN-13: 9789400933774

ISBN-10: 9401080178

ISBN-13: 9789401080170

Whether the Phoenicians and t he within the south-west of the Iberian Carthaginians ever truly labored Peninsula there's a enormous pyritic the mines , or have been in basic terms investors, is mineral ised quarter, often called the no longer sure , yet after 205 BC, while Andevallo, extending from close to they defeated the Carthagi nians, the Seville to south of Lisbon, a space Romans introduced their very own males expert a few one hundred fifty kilometres lengthy and 30 in mining and metallurgy. kilometres extensive. The Romans occupied many of the The Rio Tinta Mines , that are the Iberian Peninsula for six hundred years , biggest of this "pyrites belt" , lie till approximately 425 advert - the latest within the quarter referred to as Andalusia, Roman cash stumbled on at Rio Tinto exhibit a few ninety kilometres north-west of the top of Honorius who used to be emperor Seville and seventy five kilometres north-east from 395 to 423 advert. Mining needs to of Huelv8 . they've got a truly lengthy have declined with the invasion of historical past, relationship again to pre-Iberian Barbarians within the fifth century and the days; then got here the Iberians , a race next entr y of the Visigoths who of North African starting place (Turdetarian have been finally absorbed into the and Tartessian) , the Phoenicians , the folks of Spain. In 711 advert the Carthaginians , the Romans , the Moors, Moors invaded the Peninsula from the Spaniards and the British. It North Africa.

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Extra resources for A technical history of the Rio Tinto mines: some notes on exploitation from pre-Phoenician times to the 1950s

Sample text

By 1882 , North Lode was in production but production from it and South Lode was inadequate to meet rising needs and work to extend underground operations to the San Dionisio orebody began with extending the Main Tunnel westwards . It reached the western extremity of the ore body by the end of 1885 and for most of its length was in pyrite. The mining method used in San Dionis io was i ni tially the same as used in South Lode. San Dionisi o proved to be the most important of the lodes in RTC's operations although not i dentified by the company unt i l after it began operations at the mines because of its importance its mining is dealt with in detail in a separate chapter.

And the two furnaces were capable of smelting a total of 14 tonnes of charge per day. 0% 10 . 0% II kernels slag 1. 6% " Charcoal consumption was 20% of the charge , compared with 29% on the older furnace . Daily matte production was about 3 . 5 tonnes containing 20- 25% Cu . Treating low grade matte had always been a problem and it became more serious with this lower grade matte which had to be roasted as many as 8 times. This was done in heaps with all the disadvantages already identified by Rua Figueroa for roasting cupreous pyrites.

23 - I CHAPTER 4 I The mines under Government control After the dismi ssal of Sanz , D Manuel de Aguirre y Hor casta was a ppoin ted Gove rnment Administrator at t he end of 1784 or early in 1785 . His fi r st period of ser vice at the mines was short, because he appa r ent l y lacked tact and few co uld work effectively with him. The Director General of Mines , D Francisco Angulo, appointed D Mel chor Jiminez to replace Aguirre in December 1786 and he, a lthough respected and presumably effecti ve, had to leave i n 1789 suffe ring from malaria .

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A technical history of the Rio Tinto mines: some notes on exploitation from pre-Phoenician times to the 1950s by Leonard Unthank Salkield (auth.), Maurice J. Cahalan (eds.)

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