What is the history of bauxite mining in South America?
Upvote:0
I recently found the League of Nations reports, which report on almost every metal production imaginable.
http://digital.library.northwestern.edu/league/stat.html
I chose the report for 1940, though some data is missing in that year due to WW2: http://digital.library.northwestern.edu/league/le0280ah.pdf
For South America (production listed in thousands of metric tons):
Suirname 615 kt (1940)
British Guyana 504 kt (1939)
Brazil 20 kt (1940)
The last LoN Report on that website is for 1944, and no new South American nations were listed for Bauxite production.
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The Pittsburgh Reduction Company, later renamed Alcoa, poured its first ingot of aluminum at Shawinigan Falls in Canada on October 22, 1901. Where did the bauxite come from?
Upvote:4
In South America, bauxite is plentiful in the Guiana shield. A description of the geology can be found in the following monograph:
Aleva, GJJ (1981). "Essential difference between the bauxite deposits along the southern and northern edges of the Guiana Shield, South America." Economic Geology and the Bulletin of the Society of Economic Geologists, 76:1142-52.
Bauxite was first investigated, largely as a refractory and abrasive in British and Dutch Guiana right after World War I. A large mine at Moengo in Dutch Guiana opened in 1922. The Guianas were major sources of bauxite through World War II, and in fact the United States invaded Dutch Guiana for that reason during the war. Production peaked in the 1960s and has declined since then, except in neighboring Brazil into which the geologic formation continues.
In Brazil good quality nodular deposits of bauxite were found in the 1950s in the Trombetas region, and eventually it became economically and politically possible to mine them in 1979 when Mineracao Rio do Norte was formed for that purpose. Since 1979, the Trombetas mines have yielded around 10 million tons per year.
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