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Nonferrous metals

In terms of mining activity, copper is the leading nonferrous metal. It is true that in re• cent years the volume of aluminum con• sumption in the non-Communist world has exceeded the volume of copper consumption, but virtually the entire primary aluminum supply is derived from bauxite. On the aver• age, only four tons of bauxite need be mined to produce a ton of aluminum.
By contrast, the highest-grade, large-scale copper mines now in operation (those in the Congo) must mine at least 20 tons of ore to produce a ton of copper. In the United States an average of 150 tons of ore must be mined to produce a ton of copper. This does not take into account the huge amounts of waste overburden that must • be stripped from the
open-pit mines to account for their steadily rising share of the world's copper output.
Copper epitomizes the economic problems of . the mining industry in many ways. Its
price is highly . volatile, considering its great
economic importance. It has been a tool of mankind longer than any other -of Jhe base metals-the dawn of history has been classi• tied as "The Bronze Age."

Ketersediaan
#
Pusat Sumber Daya Mineral, Batubara dan Panas Bumi - Jln. Soekarno Hatta No. 444, Bandung, Jawa Barat PMB LU 1978 - 22
PMB LU197822
Tersedia
Informasi Detail
Judul Seri
-
No. Panggil
PMB LU 1978 - 22
Penerbit
Bandung : Direktorat Sumber Daya Mineral.,
Deskripsi Fisik
17 p. ; 21 cm
Bahasa
Indonesia
ISBN/ISSN
-
Klasifikasi
669 MON n
Tipe Isi
-
Tipe Media
-
Tipe Pembawa
-
Edisi
-
Subjek
Mining
Metals
copper
aluminum
mining industry
Info Detail Spesifik
-
Pernyataan Tanggungjawab
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Tidak tersedia versi lain

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