The last years of Jacobean rule coincided with the appearance of a number of Scottish soldiers at the three major Habsburg centres of power: Madrid, Brussels and the Imperial court (the last of which was still peripatetic but increasingly centred in Vienna). Recognising the geographical complexity involved in studying such individuals, the thesis seeks to contribute to the debates of historians of early modern Europe with respect to three issues: the problem of 'multiple kingdoms', the existence or otherwise of a seventeenth century 'general crisis', and the nature of political patronage at the regal court. The first chapter deals with the historical background. The remainder of the argument is divided into two sections, the first of which relates to the 1618-35 period. It covers the lives of men such as Colonel William Semple, his nephew, Hugh Semple S.J., and ambitious sojourners such as the seventh Earl of Argyll. The rise and decline of these individuals in influencing Spanish foreign policy is the subject of chapters two and three respectively. Chapter four introduces several Scottish 'military enterprisers' who rose to prominence in the service of the 'Austrian' branch of the dynasty after 1633. The second part of the thesis deals largely with the post-1635 life of one of this latter group, Walter Leslie. His significance will become obvious, yet has been ignored by previous historians. In fact, the court careers of all these individuals, elucidated here in detail for the first time, emphasise that the accession of James VI to the English throne by no means marks the end of the contribution of Scotland to continental European political and diplomatic history.

Dissertação (Mestrado em Engenharia Mecânica) - Centro Universitário FEI, São Bernardo do Campo, 2016.

Thesis (M.Sc.)--University of Adelaide, 1951. / Bibliography: leaves 85-87.

No description available.

The London-Virginia Mine in Buckingham County is one of several abandoned gold mines that are scattered throughout the polydeformed metavolcanic and metasedimentary rocks of the Virginia Piedmont. Production began at the London-Virginia in 1853 and continued intermittantly through 1939. Gold mineralization (averaging 1.2 ppm but with localized concentrations of up to 14.1 ppm) occurs within a ferruginous quartzite lens and a muscovitic schist contained in the Cambrian Chopawamsic Formation. The deposit consists of a series of conformable stratigraphic units which include, from bottom to top: 1) a garnetiferous chlorite schist 2) a magnetite schist 3) a quartz-muscovite schist 4) a ferruginous quartzite and 5) a chlorite-biotite schist. These lithologies represent periods of submarine volcanism (units 1 and 5) and volcaniclastic sedimentation (unit 3) with intervening episodes of hydrothermal exhalative activity (units 2 and 4). The mineralogic assemblages characteristic of the exhalative units suggest that the premetamorphic sediments were rich in hydrothermal silica, goethite, amounts of barite, gold. The deposit limonite, and pyrite with minor calcite, base metal sulfides and is believed to have formed as a result of exhalative processes analogous to those currently active in the Atlantis II Deep of the Red Sea. Silica-rich, hypersaline brines discharging through fractures in the sea floor ponded in a local basin. The episodic influx of volcaniclastic debris and extensive deposition of hydrothermal silica diluted the concentration of sulfides and gold to produce a low-grade, siliceous mineralized zone. The local exhalative event was terminated when the basin was capped by a volcanic flow. / M.S.

Thesis (Ph. D.)--Columbia University, 1931. / Vita. Bibliography: p. 139-145.

Master of Science

Made available in DSpace on 2014-06-12T15:49:15Z (GMT). No. of bitstreams: 2 arquivo5256_1.pdf: 5844763 bytes, checksum: 6200ea33fb96c53a81be5abe7b9ac415 (MD5) license.txt: 1748 bytes, checksum: 8a4605be74aa9ea9d79846c1fba20a33 (MD5) Previous issue date: 2006 / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior / Apresentamos algumas propostas de parametrização do potencial de Buckingham e de um potencial de curto alcance (SHREP) de interação entre pares de íons, para utilização em simulações computacionais de dinâmica molecular (MD). Descrevemos as propriedades estruturais e dinâmicas dos íons na matriz vítrea 56,4PbF2 37,6GeO2 3Al2O3 3Ag2O, que levam a formação de um filme fino metálico não condutor de prata durante o processo de tratamento térmico. Seis modelos foram criados e testados, baseados em relações empíricas, dados experimentais ou cálculos quânticos. Destes, somente o Modelo Empírico Vítreo forneceu resultados consistentes e adequados, quando se considera a convergência e estabilidade das simulações e de suas propriedades mecânicas. Os cátions apresentam coordenação seletiva com o óxido ou o fluoreto. Os íons fluoreto e prata apresentaram os maiores coeficientes de difusão, consistentes com o uso deste tipo de matriz vítrea como condutores iônicos rápidos. O tratamento térmico foi simulado pela transformação de íons prata em átomos de prata com a respectiva remoção de íons fluoreto. Isto é equivalente a considerar o seguinte processo redox: Ag+ + F → Ag + ½F2(g). O coeficiente de difusão dos átomos de prata foi pelo menos 10 vezes maior que o do íons fluoreto, o qual apresenta o maior coeficiente de difusão dentre os íons. Observamos que a maioria dos átomos de prata permanecem como átomos ou dímeros, o que é consistente com a sua migração rápida para a superfície, já que agregados poliatômicos ficam praticamente retidos no interior da matriz onde são formados. Simulações do sistema vítreo levando em consideração os efeitos da superfície (periodicidade 2-D ou geometria slab) permitiram mostrar que há uma maior concentração de átomos próximas à superfície, o que explica a sua migração para a superfície seguida da formação do filme observado experimentalmente

The kyanite quartzites of the Willis Mountain and East Ridge deposits in Buckingham County, Virginia hosts the world's largest kyanite mine and constitute the largest known reserves of kyanite. The stratiform kyanite quartzite is overlain and underlain by quartz-muscovite schists which are in turn enveloped by biotite-amphibole gneiss of the Cambrian Chopawamsic formation, metamorphosed volcanic and volcaniclastic rocks. The entire package of rocks has been metamorphosed to amphibolite grade peak conditions of 6.5 kb and 600°C. The kyanite quartzite is very similar in bulk composition and accessory mineralogy to high-alumina rocks of probable hydrothermal origin in North Carolina, South Carolina, and Georgia, and to active stratiform hydrothermal alteration zones in Tatun, Taiwan and Otake, Japan. The major difference among these deposits is the type of aluminosilicate phase present, a reflection of the grade of metamorphism, with kaolinite and pyrophyllite appearing in unmetamorphosed deposits, pyrophyllite and andalusite appearing in zones of greenschist grade, and kyanite appearing in zones of amphibolite grade. Data from active alteration zones and mineral equilibria suggest that the kyanite quartzite was formed from intermediate volcanic rocks by hydrothermal action of acidic fluids (pH 2 to 4) at a temperature between 100 and 200°C under mildly oxidizing conditions. Alumina and silica were residually enriched as alkali and alkaline earth cations were extracted from the rock by hydrolysis. The surrounding quartz-muscovite schist was formed in the same manner by less acidic, cooler fluids. The adjacent biotite-amphibole gneiss also shows signs of partial hydrothermal alteration, such as residual enrichment of alumina represented by a kyanite and/or sillimanite-staurolite-gedrite assemblage. / M.S.

Soils overlying residuum on upland divides and interfluves that formed from transported material are common in the Virginia Piedmont. They are thought to occur on the oldest landscapes in the region. A study was initiated in Appomattox County and a small portion of Buckingham County encompassing an area of 238 square miles. The origin, age and characterization of these soils is studied. Mapping units comprised of red subsoil components and mapping units with non-red subsoil components are compared. Trend-surface analysis of the elevations at which they occur and chemical and physical data from twenty-four pedons in Appomattox County are used. The mapping units contain a complex mixture of taxonomic classifications that encompass pedons with and without palic clay distributions. Wetness due to perched water tables at variable depths also affects classifications. The red subsoil mapping units tend to occupy the older landscapes. Age estimates are derived from a comparison of trend-surface elevations between the transported soils and the present-day surface. These comparisons result in age estimates of 0.8 million years to 6.25 million years BP. Therefore, the oldest geomorphic surfaces in the south central Piedmont of Virginia may be estimated as late Pliocene to Miocene age landscapes. These soil materials were deposited through a process of landscape inversion dominated by subsidence and colluviation. / Master of Science