Minerals for the chemical and allied industries

Includes bibliography.

Bulletin - Arizona Bureau of Mines.

Mode of access: Internet.

Annual report by the State Inspector of Mines to the Governor of the State of New Mexico

Title varies slightly

Mineral industry of Michigan.

Text is a preprint from the U.S. Bureau of Mines' Minerals yearbook.

Grain size and mineral compositions of Pacific red clays

Hypotheses of origin of ocean deep red clays are under discussion. On an example of the Pacific Ocean grain size, mineralogy and chemical composition of clays are considered. It is shown that they formed from atmospheric dust and andesite pyroclastics. Accumulation of the clays occurred through deposition particle-by-particle and by pellet transport.

Recursos litosféricos y medio ambiente

This paper focuses that geological resources is an essential need in the development of the society and specially of the developing countries. Taking into account the processes and environmental problems related to mining exploitation, these activities should be performed in a environment concordance. For these reason al1 the available environmental techniques and tools for a responsible exploitation of resources should be used.

Nivel de mercurio en cabello de ninos peruanos expuestos en una zona minera de Arequipa y de la ciudad de Lima

Objetivo: El propósito del estudio fue comparar los niveles de mercurio en cabello en dos muestras de ninos peruanos provenientes de dos zonas geográficas distintas: una zona rural minera y una zona urbana. Material y métodos: La zona minera correspondió al poblado de Mollehuaca (Arequipa), de donde se obtuvieron 52 muestras de cabello; la zona urbana no expuesta a minería correspondió al distrito de Los Olivos (Lima), de donde se obtuvieron 40 muestras. Se determinó el nivel de mercurio con la técnica estandarizada de plasma de inducción acoplado con un espectrómetro de masas (ICP-MS). Resultados: En la zona rural, en promedio, se obtuvo un nivel de mercurio de 7,47 ppb±26,9. En la zona urbana, el nivel de mercurio alcanzó un promedio de 2,47 ppb±1,28. No se encontraron diferencias significatives en el nivel de mercurio según edad o género. Conclusión: Se concluye que el grupo expuesto a minería aurífera informal y de zona rural presentó niveles de mercurio en cabello en promedio mayores a los del grupo de zona urbana, pero esta diferencia no fue significativa (p=0,188, α=0,05).

Estudo do desempenho de barreiras de geotêxtil para contenção de sedimentos carreados pelo escoamento superficial

Pós-graduação em Engenharia Civil e Ambiental - FEB

Obtenção de um ataque químico padrão, zona de annealing parcial e temperatura de fechamento para o epídoto através do método dos traços de fissão

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Recuperação de área de preservação permanente através da nucleação como subsídio à adequação legal da atividade de extração de argila em pequena propriedade

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Rhode Island, Geology, 1840 (Raster Image)

This layer is a georeferenced raster image of the historic paper map entitled: A geological map of Rhode-Island, by Charles T. Jackson. It was published in 1840. Scale [1:190,080]. Covers Rhode Island and a portion of southeastern Massachusetts. The image inside the map neatline is georeferenced to the surface of the earth and fit to the Rhode Island State Plane Coordinate System (Feet) (FIPS 3800). All map collar and inset information is also available as part of the raster image, including any inset maps, profiles, statistical tables, directories, text, illustrations, or other information associated with the principal map. This map shows features such as geological features, mines, mills, railroads, hotels, selected residences with names of property owners, drainage, town and county boundaries, and more. Relief shown by hachures. This layer is part of a selection of digitally scanned and georeferenced historic maps of New England from the Harvard Map Collection. These maps typically portray both natural and manmade features. The selection represents a range of regions, originators, ground condition dates, scales, and map purposes.

Chile, 1873 (Image 11 of 14) (Raster Image)

This layer is a georeferenced raster image of the historic paper map entitled: Plano topografico y geologico de la Republica de Chile levantado por orden del gobierno, baja la direccion de A. Pissis ; grabado por N. Desmadryl. Sheet 10. It was published by Ch. Chardon in 1873. Scale [ca. 1:250,000]. This layer is image 11 of 14 total images of the fourteen sheet source map. Covers a portion of Región del Biobío and Región de la Araucanía, Chile. Map in Spanish. The image inside the map neatline is georeferenced to the surface of the earth and fit to the 'World Mercator' projection. All map collar and inset information is also available as part of the raster image, including any inset maps, profiles, statistical tables, directories, text, illustrations, index maps, legends, or other information associated with the principal map. This map shows features such as drainage, roads, railroads, cities and other human settlements, territorial boundaries, selected buildings and built-up areas, mines and mineral locations, geological features, and more. Relief shown by hachures and shading. This layer is part of a selection of digitally scanned and georeferenced historic maps from the Harvard Map Collection and the Harvard University Library as part of the Open Collections Program at Harvard University project: Organizing Our World: Sponsored Exploration and Scientific Discovery in the Modern Age. Maps selected for the project correspond to various expeditions and represent a range of regions, originators, ground condition dates, scales, and purposes.

Chile, 1873 (Image 12 of 14) (Raster Image)

This layer is a georeferenced raster image of the historic paper map entitled: Plano topografico y geologico de la Republica de Chile levantado por orden del gobierno, baja la direccion de A. Pissis ; grabado por N. Desmadryl. Sheet 11. It was published by Ch. Chardon in 1873. Scale [ca. 1:250,000]. This layer is image 12 of 14 total images of the fourteen sheet source map. Covers a portion of Región de la Araucanía and Región de Los Ríos, Chile. Map in Spanish. The image inside the map neatline is georeferenced to the surface of the earth and fit to the 'World Mercator' projection. All map collar and inset information is also available as part of the raster image, including any inset maps, profiles, statistical tables, directories, text, illustrations, index maps, legends, or other information associated with the principal map. This map shows features such as drainage, roads, railroads, cities and other human settlements, territorial boundaries, selected buildings and built-up areas, mines and mineral locations, geological features, and more. Relief shown by hachures and shading. This layer is part of a selection of digitally scanned and georeferenced historic maps from the Harvard Map Collection and the Harvard University Library as part of the Open Collections Program at Harvard University project: Organizing Our World: Sponsored Exploration and Scientific Discovery in the Modern Age. Maps selected for the project correspond to various expeditions and represent a range of regions, originators, ground condition dates, scales, and purposes.