Each talk covers one or more of the major ore deposit types. Describing the process of partially melting rocks to concentrate metals into the melt portion and bringing that melt up through the crust to a shallower depth where it can be mined while cooling it to allow valueless minerals to crystallize out and be left behind and the remaining melt to be enriched in metals. I also mentioned that certain minerals that we do want sometimes crystallize or separates out early in this cooling process. How are Ore Mineral Deposits Formed series will focus on deposits associated with mafic layered complexes such as nickel, the platinum group metals and igneous rocks. The best known of these layered intrusions of the Bushnell complex in South Africa.
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Each talk covers one or more of the major ore deposit types. Describing the process of partially melting rocks to concentrate metals into the melt portion and bringing that melt up through the crust to a shallower depth where it can be mined while cooling it to allow valueless minerals to crystallize out and be left behind and the remaining melt to be enriched in metals. I also mentioned that certain minerals that we do want sometimes crystallize or separates out early in this cooling process.
How are Ore Mineral Deposits Formed series will focus on deposits associated with mafic layered complexes such as nickel, the platinum group metals and igneous rocks. The best known of these layered intrusions of the Bushnell complex in South Africa.
Kimberlite is an ultramafic rock derived from the mantle. Diamonds crystallize in the mantle well below the crust but they are carried up into the crust by the rising kimberlitic magma. Included in a short copper extraction process description.
Skarns do not necessarily have the same characteristics. There may be some zoning and variation of metal ratios but over tens of meters grade tends to be pretty consistent. Skarns again do not fit this pattern and they can vary considerably in grade just over a few meters. Porphyries , skarns and IOCG deposits very often have both oxidized and unoxidized portions. This is important as it impacts on capital costs. Capital cost for building up porphyries and IOCG mines are generally high compared to other deposit types.
Geophysics plays a crucial role in exploration for each of these deposits. This course will deal with vein deposits that formed deep in the crust and host gold and copper. There are two basic types of vein deposits you can explore for: epithermal and mesothermal deposits.
Covers the so-called epithermal deposits geology. These are formed at shallow depths and are host to gold deposits and silver and sometimes lead and zinc as well.
The Yanacocha deposit in Peru which had reserves a 32 million ounces in belongs to this group of deposits. Carlin Type Gold System. Carlin deposits are very attracted to major mining companies as they can be very big and they are often high-grade as well they are indeed big elephants. They are hosted in dirty limestones in Nevada, this means mainly in the lower plate rocks and associated with long-lived crustal scale faults.
The gold itself is to fine to see with the naked eye or to pan; the so-called micron gold. Covers the Witwatersrand gold deposits in South Africa, the biggest source of gold on earth.
The Witwatersrand gold deposits. Except for a fluke of nature these large gold deposits might never have been discovered even as there are claims to be the biggest elephants of all. The greatest controversies in the geological world; the genesis of the Witwatersrand Gold ore deposits. There are two main competing theories of origin and then offer a third possibility. Review a short section on how these remarkable deposits are mined and the technical and social issues involved which will lead us onto the last section; what is the future of the Witwatersrand gold industry.
Uranium is not rare and it incurs in most rocks. Deposits can be split into primary deposits those within the original igneous source rock and secondary deposits where the uranium has been leached by groundwater and concentrated somewhere else.
The exploration process; what exploration tools are available and how the exploration geologists selects which ones to use. It also talks about exploration strategies. Ore resources and reserves and deal with how resources and reserves are delineated and projects evaluated so that we can reach the decision to either build a mine or abandon the project.
More great FREE Geology Courses: Syllabus —Description, procedures, and objectives of the course Schedule —Links to weekly agendas, lectures, and lab assignments Grading Rubrics —Standards for assessments in the course Basics —Explanations of basic concepts in geology Basics Tables —Summary tables of basic geologic information Focus Pages —Essential elements of the geology of the Pacific Northwest Virtual Field Sites —Selected geological field sites in the Pacific Northwest Glossary —Definitions of geological terms used in the course.
Online Geology Course
Contact Overview This full time 12 month intensive programme is designed to provide advanced specialised training for earth science graduates, leading to excellent employment opportunities in the extractive industry. You will attain a comprehensive understanding of the role of a geoscientist working in the mining industry. New skills include underground geological and geotechnical mapping, surveying, mineral exploration, ore microscopy, ore deposit modelling and mine planning. In-depth coverage of mineral resource estimation and grade control, mineral extraction and management, mining law and the environmental impact of mining, enable skills in quantifying the economic value of an ore body and assessing its potential for exploitation to be attained. There is emphasis on acquiring knowledge of the geological characteristics and genesis, methods of exploration, extraction and processing techniques of the major types of metalliferous ore deposit, bulk commodities and industrial minerals. Recent projects have been carried out in all major mining countries on six continents, including Australia, Tanzania, Mongolia, Chile as well as in the UK.
Courses in mining geology
Read More A text-book of mining geology for the use of mining We never accept ads. But we still need to pay for servers and staff. I know we could charge money, but then we
mining geology book pdf
Coal Geology covers all aspects of coal geology in one volume, bridging the gap between the academic aspects and the practical role of geology in the coal industry. The object of the book is to provide the reader with a with a description of the origins of coal together with the physical and chemical properties of coal and coal petrology before proceeding to cover all areas of coal exploration, production and use. Bridges the gap between academic aspects of coal geology and the practical role of geology in the coal industry Examines historical and stratigraphical geology, together with mining, environmental issues, geophysics and hydrogeology and the marketing of coal Defines worldwide coal resource classifications and methods of calculation Addresses the alternative uses of coal as a source of energy, together with the environmental implications of coal usage Includes improved illustrations including a colour section Offers a global approach covering expanding fields in America, China and India The truly global approach, drawn from the international experiences of the author, recognizes the growing role of coal use in emerging markets. With fully revised coverage of the latest modelling techniques, environmental legislation, equipment and recording methods, the second edition offers a truly invaluable resource for anyone studying, researching or working in the field of coal geology, geotechnical and mining engineering and environmental science.