Mineral resources of the Ryūkyū-rettō.
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Mineral resources of the Ryūkyū-rettō. by United States. Far East Command.

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Published in [Tokyo?] .
Written in English



  • Ryukyu Islands.


  • Mines and mineral resources -- Ryukyu Islands.

Book details:

Edition Notes

Bibliography: p. 122-125.

StatementPrepared by Geological Surveys Branch, Intelligence Division, Office of the Engineer, HQ, U.S. Army Forces, Far East, with personnel of the U.S. Geological Survey.
LC ClassificationsTN106.R9 U54 1954
The Physical Object
Paginationviii, 125 p.
Number of Pages125
ID Numbers
Open LibraryOL6170203M
LC Control Number54060924

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Mineral depletion is the r atio of the value of the stock of mineral resources to the remaining reserve life time (capped at 25 y ears). It covers tin, g old, lead, zinc, iron, copper.   A weight W S ij D̄ for S ij in data set D i for the proposition T̄ i is defined as (16) W S ij D ̄ = N S ij D ̄ N S ij N D ̄ −N S ij D ̄ N T −N S ij The numerator is the conditional probability that a target mineral deposit does not exist given the presence of S ij ; it means simply that a target mineral deposit does not occur in S ij. We propose searching for deep underground cavities of different densities in the Earth’s crust using a long-baseline ν ̄ e disappearance experiment, realized through a low-energy β-beam with highly-enhanced luminosity. We focus on four cases: cavities with densities close to that of water, iron-banded formations, heavier mineral deposits. The surface energy of minerals increases due to a loss of humidity. In rocks, this leads to strains without applying external stress (stress-free strain) and affects the rocks' elastic response.