No description available.

No description available.

The research described in this thesis has led to an understanding of the geochemical conditions controlling the formation, paragenesis and distribution of oxide zoner copper species in the Eastern Fold Belt of the Mt. Isa Inlier. This area is also known as the Cloncurry Complex. The regional geology and genesis of the copper deposits is reviewed and the deposits of particular interest to the study are described. Oxidation of pyrite and chalcopyrite by oxygen-bearing groundwater and the sources and mechanisms by which anions are carried by groundwater to reaction sites to form secondary copper species are discussed. Physical and chemical conditions control the development of particular species. Equilibrium phase diagrams have been constructed to represent stability fields. An explanation for the relative abundance and spatial distribution of the basic copper phosphates is provided. Stability field data supported by observations made on deposits in the Cloncurry district and elsewhere provides a basis for assessing the paragenesis and distribution of secondary copper species in this and similar environments. This is discussed and illustrated using the Great Australia mine as a model / Master of Science (Hons)

No description available.

Thesis (B.S.)--University of Missouri, School of Mines and Metallurgy, 1912. / The entire thesis text is included in file. Typescript and handwritten. Illustrated by authors. Title from title screen of thesis/dissertation PDF file (viewed February 20, 2009)

Magister Artium - MA / This thesis relates what is referred to in the text as a 'chronicle' of the history of the Cloete family of Springbokfontein and surrounding areas in Namaqualand, with particular attention to the issue of a land transaction in the early 1850s between seven Cloete brothers and the English copper mining company Phillips & King. The sale of the farm Melkboschkuil has since been a source of long-standing dispute on the part of the Cloete family. It traces the circumstances of the Cloetes' settlement in Namaqualand, the archival and oral record regarding the highly contentious ‘sale’ of the land between these parties, and the subsequent resonances of this land dispute over decades and indeed right up to the 1990s when the Cloete descendants lodged a land claim. The author attempts to use the very specific story of a land deal to throw light on the wider story of the relations between a disadvantaged Baster and later 'Coloured' family, and the white-dominated local and regional government in Namaqualand -- particularly in Springbok. At the same time, attention is drawn to the political and economic forces shaping the people around Springbokfontein during the late nineteenth and early twentieth centuries. The small story of the Cloetes is used to illuminate the wider history of the inequitable relations between white capitalists and Baster/Coloured landowners dispossessed of their historic rights to land. The thesis is based on a detailed examination of the struggle of the Cloete family in Namaqualand to secure possession of the land that they once owned but which became the site of a copper mine and later on the town of Springbok. The narrative told from the perspective of certain members of the Cloete family and their descendants, follows a convoluted trail of legal papers, land deeds and oral pronouncements. But at the heart of the story is the question as to how the Nama and Baster people of Namaqualand came to be divested of their rights to the land and a fair share of the mineral wealth of the district following the development of copper mining.

No description available.

Magister Legum - LLM

No description available.

The relevance of the topic is due to the fact that copper is used in all sectors of industry: engineering, electrical industry, household industry, construction, etc. It produces wires and cables, pipes, cooling systems and much more. Thus, the scope of copper is constantly expanding, so the need for it is growing from year to year. Copper mining from natural sources is expensive and not environmentally friendly. Therefore, it is much more efficient to produce copper by secondary processing. In modern conditions, it is important to be able to predict the resource base of the enterprise in the short and long term, because this helps to direct investments in the right direction and to avoid economic losses. The aim of the work is to build a predictive model of the copper scrap market using key parameters. Tasks of work: • to consider the theoretical aspects of the development of the Russian copper scrap market; • to evaluate key indicators of the copper scrap market and adjust the model characterizing the dynamics of the volume of copper scrap; • to develop a forecast model and produce a forecast; • to analyze the enterprises of the metallurgy market; • to identify the behavior strategies of agents in the copper scrap market and build a diagram of competitive behavior strategies; • to evaluate the effectiveness of the competitive behavior strategy chart; • to evaluate the economic efficiency of creating a new information system. / Актуальность темы обусловлена тем, что медь используется во всех секторах промышленности: для машиностроения, электротехнической промышленности, бытовой промышленности, в строительстве и т.д. Из нее изготавливаются провода и кабели, трубы, системы охлаждения и многое другое. Таким образом, сферы применения меди постоянно расширяются, поэтому потребности в ней растут из года в год. Добыча меди из природных источников процесс дорогостоящий и не экологичный. Поэтому гораздо эффективнее получать медь путем вторичной обработки. В современных условиях, важно уметь прогнозировать ресурсную базу предприятия в краткосрочной и долгосрочной перспективе, т.к. это помогает направить инвестиции в нужное русло и избежать экономических потерь. Целью работы является построение прогнозной модели рынка медного лома с использованием ключевых параметров. Задачи работы: • рассмотреть теоретические аспекты развития рынка медного лома РФ; • оценить ключевые показатели рынка медного лома и скорректировать модель, характеризующую динамику объема медного лома; • разработать прогнозную модель и произвести прогноз; • провести анализ предприятий рынка металлургии; • выявить стратегии поведения агентов на рынке медного лома и построить диаграмму конкурентной стратегии поведения; • оценить эффективность диаграммы конкурентной стратегии поведения; • оценить экономическую эффективность создания новой информационной системы.