Name: Assessment of Undiscovered Deposits of Gold, Silver, Copper, Lead, and Zinc in the United States (en Inglés)
Price: 30070.00 CLP
Availability: InStock
Author: U. S. Department of the Interior
ISBN: 9781499137224

portada Assessment of Undiscovered Deposits of Gold, Silver, Copper, Lead, and Zinc in the United States (en Inglés)

Assessment of Undiscovered Deposits of Gold, Silver, Copper, Lead, and Zinc in the United States (en Inglés)

Formato

Libro Físico

Editorial

Createspace

Autor

U. S. Department of the Interior

Idioma

Inglés

N° páginas

Encuadernación

Tapa Blanda

Dimensiones

27.9 x 21.6 x 0.2 cm

Peso

0.09 kg.

ISBN13

9781499137224

Categorías

Química de los minerales, mineralogía y gemas

Assessment of Undiscovered Deposits of Gold, Silver, Copper, Lead, and Zinc in the United States (en Inglés)

U. S. Department Of The Interior (Autor) · Createspace · Tapa Blanda

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Reseña del libro "Assessment of Undiscovered Deposits of Gold, Silver, Copper, Lead, and Zinc in the United States (en Inglés)"

This report summarizes the results of the 1998 National Mineral Resource Assessment that estimated the gold, silver, copper, lead, and zinc in undiscovered deposits in the United States. This project also estimated the identified resources and past production of these five metals. Assessment results include the following: - It is estimated that 18,000 metric tons (t) of gold, 460,000 t of silver, 290,000 kilotons (kt) of copper, 85,000 kt of lead, and 210,000 kt of zinc are in undiscovered deposits minable with existing technology.- In addition, it is estimated that 15,000 t of gold, 160,000 t of silver, 260,000 kt of copper, 51,000 kt of lead, and 55,000 kt of zinc remain in identified resources.- Past production from the largest identified resources of gold, silver, copper, lead, and zinc is estimated to be 12,000 t of gold, 170,000 t of silver, 91,000 kt of copper, 41,000 kt of lead, and 44,000 kt of zinc. These deposits account for about 99 percent of cumulative domestic production in the United States.