 | | Report (issue) | | DEPOSITS OF MANGANESE ORE IN MONTANA, UTAH, OREGON, AND WASHINGTON. By J. T. PARDEE. DEPOSITS IN MONTANA...of the war period was a large production of manganese ore in Montana. Although since 1870 the Butte and...other metals, the fact that large bodies of manganese ore formed part of the mineral deposits of these...high-grade manganese oxide ore from Philipsburg. In 191Y the production in that district so greatly increased...States producing manganese ore. In the same year a moderate amount of. manganese oxide ore was mined from |  | | Book (volume) | | Metallogenesis and Mineral Ore Deposits Proceedings of the 27th International Geological Congress...Geochemistry and Cosmochemistry Metallogenesis and Mineral Ore Deposits Oil and Gas Fields Solid Fuel Mineral Deposits...{A/IV I Volume 12 I ' METALLOGENESIS AND MINERAL ORE DEPOSITS ,,,vNUSCIENCEPRESSIII Utrecht, The Netherlands...Committee V • CONTENTS Preface V Periodicity of ore formation in geological history V.I. Smirnov 1 ...and tin deposits V. Sattran 17 The sources of ore material and conditions of its mobilization V.I. |  | | Book | | Manganese Ores of Supergene Zone: Geochemistry of Formation by IGOR M. VARENTSOV Geological Institute...1930s-1990s 1.3. Methodical Aspects 1 6 15 2. MANGANESE ORES IN WEATHERING CRUSTS 20 2.1. Introduction...Structure 2.2.1.5. Manganese Oxyhydroxide Ores 2.2.1.5.1. Structure of the ore bed 2.2.1.5.2. Ore types 2.2.1...Composition, Geochemistry ofthe Ore-Bearing Horizon 2.2.2.3. Genesis: Ore Formation as a Result of Deep...Geochemistry of the Late Stages of Oxyhydroxide Ore Formation (Manganese Cap (Cuirass» 2.2.3.3.1. General characteristics |  | | Journal (issue) | | 52, south-west quadrant; the Southern Machakos District, mapped by B. H. Baker (Report No. 27). 2. Degree...pertinent data concerning the properties, mode of occurrence, mining, preparation and usage of these two minerals... H. 1954. '' Geology of the southern Machakos district.'' Rep. No. 27, geol. Surv. Kenya. 40 pp .., figs...of copper minerals, barytes, fluorite, galena, manganese, monazite, samarskite, sulphur and talc also occur...recorded include asbestos, lignite, graphite, iron ore} kaolin, molybdenite, oil shale, rutile and vermiculite |
|
