No description available.

Thesis (M.S.)--University of Delaware, 2006. / Principal faculty advisor: Stephen C. Cary, College of Marine and Earth Studies. Includes bibliographical references.

Thesis (M.S. - Geosciences)--University of Arizona, 1990. / Includes bibliographical references (leaves 151-156).

Thesis (M.S.) -- University of Montana, 2009. / Title from author supplied metadata. Description based on contents viewed on August 24, 2009. Author supplied keywords: Sinter, microfacies, geyserites, hydrothermal breccia. Includes bibliographical references.

Thesis (M.S.)--San Diego State University, 1978.

A petrographic study is made of the granitic and related metamorphic rocks at Harrison Hot Springs, B.C. this thesis contains a general treatment of the regional and structural geology of the general area. The petrography of the various rock types is discussed under two main headings the granitic rocks, and the metamorphic rocks. Heat given of by the intrusive magma converted the adjacent unmetamorphosed sediments to hornfelses of the cordierite-anthophyllite subfacies and pyroxene-hornfels facies. These rocks are arbitrarily subdivided into rock types on the basis of their mineraloglcal compositions, rather than on the field occurrence. These assemblages are discussed with reference to the facies classification and the mineraloglcal phase rule. It is concluded that the hornfelses were derived by thermal metamorphism of aluminous-chloritic argillaceous sediments; that the cordierite-anthophyllite hornfelses were originally rich in MgO and FeO metasomatism was not an important process In the formation of the metamorphic assemblages. / Arts, Faculty of / Geography, Department of / Graduate

No description available.

Thesis (M.S.)--University of Wyoming, 2007. / Title from PDF title page (viewed on Mar. 4, 2009). Includes bibliographical references (p. 21-28).

The Springfontein Prospect is a Tertiary aged epithermal Hot Spring deposit that was investigated for precious metal mineralisation. It is located some 14 kilometres due west of East London (Cape Province), within Beaufort Group sediments and Karoo dolerite. Prior to the work described in this case study, the location was known for it's abundant plant fossils and barite mineralisation. A gossan sample collected near the main barite vein returned 1,07 g/t Au and 26,6 g/t Ag. Remote sensing studies of the site revealed a set of north-south lineaments paralleling the barite vein system. Geophysical surveys confirmed this orientation and revealed an extensive alteration system underlying the prominent sinter terrace. A detailed soil geochemical survey returned elevated values in the classical epithermal gold mineralisation element suite (Rg, Tl, As, Bi, Sb, Te, Mo, Ba and Pb - Bonham, 1986). Trenching of geochemical anomalies revealed zones of intense argillic alteration and vein stockworks). Four percussion and three diamond drill holes intersected a 'feeder-fissure' system of veins, alteration and brecciation, but failed to repeat gold levels seen at surface. Mineralogical and petrographic studies of the cores determined temperatures of formation of important indicator minerals (e.g. adularia and zeolites). Litho-geochemical work revealed mercury (and thallium) to be most elevated in the feeder systems. Stratigraphic and paleontological observations determined that the Springfontein Tertiary deposit was clearly different to the other siliceous (silcrete) units that crop out in the Eastern Cape region. A number of distinguished visitors to the prospect, with epithermal deposit experience, confirmed that the characteristics and dimensions of the system is within those of mineralised deposits elsewhere. A brief review of current epithermal models are presented. The conceptual geological model for the Springfontein prospect evolved through the exploration programme. The final consensus is that it best fits Bonham's (1986) alkalic model and the Tertiary epithermal event was sustained by rifting associated with the break-up of Gondwanaland.

South Africa is endowed with hot springs, some operating as resorts. Some hot springs are either totally undeveloped or were developed in the past but now collapsed now in disuse. The main objective of this study was to identity competitive factors that contributed to the success or failure of the resorts as tourism destination. A multifaceted approach was used to gather data from three thermal springs located in Vhembe District Municipality in Limpopo, namely, Tshipise, Mphephu and Sagole, through personal observation, field trips, informal discussion, interviews with specific individuals, group interviews, published and unpublished literature. The data generated was analysed using Likert type scale as well as scoring the presence and absence of competitive elements to compare the success factors of the three resorts. Tourism Destination Competitiveness was used as a proxy indicator of successful development of the resorts. The results indicate that Tshipise was very successful, Mphephu less so and Sagole was declining. Elements that require improvement identified and recommendations were made to rejuvenate Sagole. / (M.Sc. Environmental Management)