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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
41

Geochemical and mineralogical studies of the Trench Tungsten deposit, Mount Mulgine, Western Australia /

Migisha, Christopher J. R. January 1983 (has links) (PDF)
Thesis (M. Sc.)--University of Adelaide, 1984. / Some mounted ill. Includes bibliographical references (leaves 123-141).
42

Genesis of the El Salvador porphyry copper deposit, Chile and distribution of epithermal alteration at Lassen Peak, California /

Lee, Robert G. January 1900 (has links)
Thesis (Ph. D.)--Oregon State University, 2009. / Printout. Includes bibliographical references (leaves 226-240). Also available on the World Wide Web.
43

Practical details of mine surveying in certain mines of Northern Mexico

Fernandez, Arturo C. January 1917 (has links) (PDF)
Thesis (B.S.)--University of Missouri, School of Mines and Metallurgy, 1917. / The entire thesis text is included in file. Typescript. Illustrated by author. Title from title screen of thesis/dissertation PDF file (viewed May 13, 2009)
44

Étude chalcographique du gisement aurifère de Roşia-Montanǎ et du gisement de plomb et de zinc de Herja (Transylvanie. Roumanie)

Petrulian, Nicolae S., January 1934 (has links)
Inaug.-diss.--Basel. / "Separatabdruck aus Anuarul instutului geologic al Romaniei, vol. XVI. 1931." Each plate preceded by leaf with descriptive letter-press. Curriculum vitae. "Bibliographie": p. [83].
45

Étude chalcographique du gisement aurifère de Roşia-Montanǎ et du gisement de plomb et de zinc de Herja (Transylvanie. Roumanie)

Petrulian, Nicolae S., January 1934 (has links)
Inaug.-diss.--Basel. / "Separatabdruck aus Anuarul instutului geologic al Romaniei, vol. XVI. 1931." Each plate preceded by leaf with descriptive letter-press. Curriculum vitae. "Bibliographie": p. [83].
46

A lithogeochemical study of the host rocks of the Strickland showing /

Wynne, Paula Jane, January 1983 (has links)
Thesis (M.Sc.) -- Memorial University of Newfoundland. / Bibliography : leaves 266-277. Also available online.
47

Geology, ore deposits and applied rock geochemistry of the Buchans Group /

Thurlow, J. Geoffrey. January 1981 (has links)
Thesis (Ph.D.)--Memorial University of Newfoundland. / Bibliography : leaves 291-305. Also available online.
48

The geochemical and mineralogical haloes around the Mount Isa base metal orebodies /

Painter, Matthew Graham Morgan. January 2003 (has links) (PDF)
Thesis (Ph.D.) - University of Queensland, 2003. / Includes bibliography.
49

Ceramic parameters in the financial evaluation of brick clay deposits, with reference to two South African examples

Perold, Jacques. January 2006 (has links)
Thesis (M. Sc.)(Geology)--University of Pretoria, 2006. / Includes bibliographical references. Available on the Internet via the World Wide Web.
50

Sampling in the evaluation of ore deposits

Grant, D E C S 19 March 2013 (has links)
Sampling is an error generating process and these errors should be reduced to a minimum if an accurate ore reserve estimation is to be made from the sample values. Error in sampling can arise from the sampling procedure as well as where and how each sample is taken from the deposit . Sampling procedure involves sample collection, sample reduction and analysis, and the error from each of these three stages has an equal influence on the total error of the process. Error due to sampling procedure should be identified and eliminated at an early stage in the evaluation programme. An ore deposit should be subdivided into sampling strata along geological boundaries, and once these boundaries have been established they should be adhered to for the evaluation programme. The sampling of each stratum depends on the small-scale structures in which the grade is distributed, and this distribution in relation to sample size controls sample variance, sample bias and the volume of influence of each sample. Cluster sampling can be used where an impractically large sample is necessary to reduce sample variance or increase the volume of influence of samples. Sample bias can be reduced by composing a large number of small samples . Sampling patterns should be designed with reference to the volumes of influence of samples, and in favourable geology, geostatistical or statistical techniques can be used to predict the precision of an ore reserve estimation 1n terms of the number of samples taken. Different are deposits have different sampling characteristics and problems which can be directly related to the geology of the mineralization. If geology is disregarded when sampling an are deposit, an evaluation programme cannot claim to give an accurate estimate of the ore reserves .

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