Ostrich
发表于 2025-3-25 03:18:52
https://doi.org/10.1007/978-3-642-91735-6 more exploration-intensive metal than the others described in this book. We have seen that deposits of Fe and Mn are vast, with reserves in single deposits as high as 10. tons of metal. For U, the largest deposits have 2 × 10. tons; the largest U.S. deposit (at Grants, New Mexico) has only 45,000 tons of U.O. (Cheney 1981, table 4).
Pander
发表于 2025-3-25 10:37:06
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exostosis
发表于 2025-3-25 13:38:13
https://doi.org/10.1007/978-1-4613-9493-8Deposits; Erzlagerstätte; Geochemie; Geochemistry; mineralogy; petrography
Concerto
发表于 2025-3-25 18:46:00
978-1-4613-9495-2Springer-Verlag New York Inc. 1983
invade
发表于 2025-3-25 21:14:03
https://doi.org/10.1007/978-3-662-26191-0o cover the subject matter of economic geology satisfactorily in one book or in one course. In practice, some sort of restriction is made. For North American geologists, there has been a tendency, now fading, to regard economic geology as synonymous with the study of hydrothermal deposits. At one ti
Astigmatism
发表于 2025-3-26 00:35:39
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Commemorate
发表于 2025-3-26 04:47:25
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Entreaty
发表于 2025-3-26 09:36:45
https://doi.org/10.1007/978-3-322-85315-8il processes are aluminum and nickel. Virtually all of the world’s Al and perhaps one third of its Ni comes from such deposits (Lelong and others 1976, p. 147). Aluminum ores overlie a variety of rock types, but Ni is associated exclusively with ultramafics, reflecting the relative abundance of the
MEAN
发表于 2025-3-26 13:42:55
Risikokonflikte und Wertwandel,eposits, particularly Nikopol in the Ukraine, which contains some 75 percent of the world’s reserves (Table 5-1). Also, note another large group of deposits in the Proterozoic, that occur at the same time as the largest iron ore accumulation. Geochemically, manganese behavior is controlled by the ox
仪式
发表于 2025-3-26 19:03:45
https://doi.org/10.1007/978-3-642-91735-6 more exploration-intensive metal than the others described in this book. We have seen that deposits of Fe and Mn are vast, with reserves in single deposits as high as 10. tons of metal. For U, the largest deposits have 2 × 10. tons; the largest U.S. deposit (at Grants, New Mexico) has only 45,000 t