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Showing: 1 to 10 of 68 matches for "la paz county mines"  Page   1   2   3   4   5   6   7
TITLE Placer Gold Deposits In The Southwest 
SUMMARY ... The gold is concentrated by streams that drain areas in which small lode- gold mines
are common, and the fluvial ... At La Paz, Yuma County, the richest ...
AUTHOR Johnson, Maureen G.
PUBLISHED 1974
TITLE Precious Metals Continue to Dominate 1983 Exploration 
SUMMARY ... The 20-year study was conducted by the USGS and the US Bureau of Mines in re- sponse
to legislation requiring as- sessment of all lands included in the ...
AUTHOR DeYoung, J.
PUBLISHED 1984
TITLE Personals 
SUMMARY ... was grad- uated in 1905 from the Colorado School of Mines. ... '1 the Boulder County
mining districts ... Argentlna Juluy-Syons, Wilfred A. (J) Bollvla La Paz-Sarmiento ...
PUBLISHED 1952
TITLE Precious metals exploration fails to makeup for declines in other minerals 
SUMMARY ... gi ,6 ,, —— -1 78 79 80 81 82 83 Year .400 300 200 100 US Bureau of Mines data
(Willard, 1984) on exploration drilling for nonfuel minerals ...
AUTHOR DeYoung, J. H. ; Attanasi, E. D.
PUBLISHED 1985
TITLE Annual Review 1987 - Exploration - Introduction 
SUMMARY ... The US Bureau of Mines estimates that 80% of US exploration activity in 1986
was directed entirely at gold (1986 Minerals Yearbook). ...
AUTHOR Attanasi, E. D. ; Bultman, M. W.
PUBLISHED 1988
TITLE Annual Review – Mining Geology and Exploration 
SUMMARY ... tons) of Aroostook County. ... has been little explora- tion for metals in the past year
other than examination of a few prospects by the U. S. Bureau of Mines. ...
AUTHOR Clark, Edward L.
PUBLISHED 1955
TITLE Annual Review 1990 – Exploration 1990 
SUMMARY ... The out- put came solely from copper mines and decreased more than 50% from ... The
state’s largest gold mine was Cyprus’ Copperstone Mine in La Paz County. ...
AUTHOR Attanasi, E. D.
PUBLISHED 1991
TITLE News - Mine, Mill To Launch Organizing Drive Soon 
SUMMARY ... A U. S. Bureau of Mines Crew is drilling on the old Weyerhaeuser copper property
in Douglas County, Wisc., 60 miles southeast of Superior. ...
PUBLISHED 1952
TITLE Sodium Carbonate Deposits 
SUMMARY Page 1. Sodium carbonate (soda ash) is one of two principal commercial alkalis.
Its principal com- petitor is sodium hydroxide. The ...
AUTHOR Mannion, L. E.
PUBLISHED 1983
TITLE Exploration 1986 - Alaska 
SUMMARY ... Numerous past producing areas in Mohave County were explored last year. ... Drilling
en- countered higher values than at some operating open-pit mines. ...
AUTHOR Bundtzen, T. K. ; Green, C. B.
PUBLISHED 1987
Showing: 1 to 10 of 68 matches for "la paz county mines"  Page   1   2   3   4   5   6   7

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