DEPOSITS OF MANGANESE ORE IN ARIZONA. By E. L. JONES, Jr., and F. L. RANSOME. INTRODUCTION. By E. L....Deposits of manganese ore have long been known in some of the old mining districts of Arizona, notably in...local smelters. Manganese ore as such was first shipped from the Tombstone district in 1915, and from...1916. The high prices that were offered, for manganese ore in 1916, 1917, and 1918, and the fact that...United States Geological Survey examined manganese deposits in Arizona, E. L. Jones, jr., visiting many scattered
DEPOSITS OP MANGANESE ORE IN NEVADA. By J. T. PARDEE and E. L. JONES, Jr. INTRODUCTION. Manganese is rather...has been produced for many years in Nevada, but manganese ore for use in the manufacture of steel was not...demand for manganese due to the war caused old workings known or supposed to contain manganese ore to be...the Three Kids deposit, near Las Vegas, is a conspicuous example. The amount of manganese ore mined in...copper smelting, contributed about 25,000 tons of manganese ore, or about 2 per cent of the total amount needed
