Silver in veins of hypogene manganese oxides,

Hewett, Donnel Foster, 1881-

Silver in veins of hypogene manganese oxides, by D. F. Hewett. - Washington [U.S. Geological Survey] 1968. - iii, 9 p. map. 26 cm. - Geological Survey circular 553 . - Geological Survey circular ; 553. .

Bibliography: p. 8-9.

gs 68000188 //r892


Manganese ores--Southwest, New.
Manganese ores--Canada.
Ore deposits--Southwest, New.

QE75 / .C5 no. 553

553/.462

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