No description available.

No description available.

No description available.

The successful combination of form, color, and content prior to the relief construction movement in the 1960's was usually associated with two-dimensional artwork. The problem, then was whether the artist could successfully combine form, color, and content in three-dimensional sculpture pieces.The content of the work described relates to the artist's personal experiences as an underground uranium miner through the medium of relief sculpture. The successful combination of form, color, and content conveyed the artist's mining experiences to a neophyte audience. The visual variety and motif in the work, however, will not be lost on any members of the audience who are also sculptors.The methods used by the artist included textbook research and studio experimentation to produce a series of pieces which would address the successful combination of form, color, and content. The research also included a study of other artists' use of shape and color in the relief sculpture format. The artist's findings were documented in the form of a thesis paper and also eight relief sculpture pieces which employed a combination of wood and paint. The paint was applied to the wood structure using a heavy impasto technique which completely obscures the wood and allows the artist to manipulate both form and color. The texture invites the viewer to explore the surface and shapes without consciously sorting out what materials are used in the construction of the sculpture. / Department of Art

Cerro Rico is the world's largest silver deposit. Hypogene mineralisation is hosted by a sheeted, polymetallic vein system which cross-cuts a pervasively altered rhyodacite dome. The 13.8Ma dome was intruded along a regional dextral strike-slip fault. Subsequent movement focused stress within the dome, creating a closely-spaced fracture system, best described as an extensional duplex. Hydrothermal alteration shows features characteristic of both porphyry and epithermal deposits. Shallow acid-sulphate alteration, comprising sub-horizontal zones of advanced argillic alteration and residual vuggy silica, formed through the neutralisation of a supergene, acid-sulphate fluid derived from the atmospheric oxidation of hypogene H₂S. Deep sericitisation which largely pre-dates the polymetallic vein mineralisation is the product of wall-rock reaction with magmatically-derived volatiles. Localised tourmalinisation resulted from the violent release of boron-rich fluids during early decompression events. A buried magma body is implied for the source of volatiles. Polymetallic vein mineralisation is vertically and laterally zoned from deep Sn-W-Bi-As-Cu assemblages to peripheral Pb-Zn-Sb-Ag. Hypogene silver occurs within complex Pb-Sb sulphosalts, tetrahedrite (freibergite), pyrargyrite and argentite. Mixing of reduced, near-neutral, hypogene Ag-bearing fluids and oxidised, supergene, acid-sulphate fluids caused the precipitation of 'bonanza' silver mineralisation within the acid-sulphate lithocap. Early pre-mineral fluids were hypersaline (34wt. %NaCl equivalent). Main stage ore fluids varied in temperature between 140 and 410°C with salinities averaging 11wt.% NaCl equivalent. Stable isotope data are consistent with a magmatic source both for the ore fluid and sulphur. Following collapse of the hydrothermal system, a fall in the palaeo-water table caused deep oxidation. Silver was released from hypogene sulphosalts and re-precipitated as disseminated acanthite and silver halides. Hypogene Ag₂S remained stable in the weathering environment. The oxide zone, preserved by a semi-arid climate, currently constitutes a world-class silver orebody.

Uppsala universitet, 1774, Thesis (doctoral) / At head of title: I.J.N. - Goldsmiths'-Kress no. 11120.0-1. - OCLC, 24135553. - Reproduction of original from Kress Library of Business and Economics, Harvard University

Thesis (Ph. D.)--University of Nevada, Reno, 2006. / "May 2006." Includes bibliographical references (leaves 203-216). Online version available on the World Wide Web.

Thesis (Ph.D) -- Fletcher School of Law and Diplomacy, 1987. / Typescript. Vita. Bibliography: leaves 471-492. Access restricted to members of the Tufts University community. Also available via the World Wide Web;

Thesis (Ph. D.)--University of Washington. / Bibliography: l. [219]-231.

Thesis (M.S.)--University of Arizona, 1982. / Abstract. Includes bibliographical references (leaves 135-139). Includes bibliographical references (leaves 175-187).