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The spatial variation of bed material texture in coupled basins on the Queen Charlotte IslandsRice, Stephen Philip January 1990 (has links)
Whether one is interested in the geomorphology, hydrology, or ecology of a river, the nature of the bed sediments is of major importance. Despite a long history of interest our ability to predict local grain size is poor, which is unfortunate given the labour and costs associated with bed material sampling. A preliminary model of sediment texture variation at the drainage basin scale, which makes a fundamental distinction between coupled and uncoupled hillslope-channel units, is presented.
It is hypothesised that grain size variations in strongly coupled rivers are unstructured as a result of overbank colluvial inputs and special storage elements. These preclude the development of the systematic downstream structure commonly associated with fluvial sorting and abrasion processes in uncoupled channels. This conjecture is assessed empirically using data collected in two rivers on the Queen Charlotte Islands.
It is found that distance alone does not explain changes in grain size, and that local variations are dominated by large organic debris jams. Impermeable jams are associated with upstream fining and downstream coarsening but the effect diminishes as the jams become more permeable, often with age. Jam placement is random, but frequent, and consequently at the drainage basin scale, grain size changes dramatically and unpredictably over very short distances. No deterministic structure is apparent.
Further analysis reveals that the observed variations of surface median grain size and Fredle index are best regarded as stochastic phenomena. Sampling criteria are then determined which enable the accurate characterisation of such variation, once a stream has been classified by land use and position relative to hillslopes. / Arts, Faculty of / Geography, Department of / Graduate
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Early and middle Jurassic Radiolarian biostratigraphy, Queen Charlotte Islands, B.C.Carter, Elizabeth Sibbald January 1985 (has links)
Radiolarian biostratigraphy is used to construct an informal zonation for sediments of upper Pliensbachian to lower Bajocian age from the Maude and Yakoun Formations, Queen Charlotte Islands, B.C. Paleoenvironmental studies assess depositional environment and the effects of changing facies relationships on the fauna.
Seven distinctive assemblages are recognized comprising 167 species of spumellarian and nassellarian Radiolaria. The first well established middle Toarcian radiolarian assemblages are documented and both these and upper Toarcian assemblages are highly diverse and contain many new and unusual forms. Five genera and 89 new species are described many of which have restricted biostratigraphic ranges. A chlorophyte algal cyst appearing in all lowest Bajocian samples may, with further study, prove to be a significant marker for the lower Bajocian in the Queen Charlotte Islands.
Although Toarcian Radiolaria have been little studied, the assemblages compare with others from North America, the Mediterranean and Japan, and are distinctly Tethyan in aspect. This is consistent with the position of Wrangellia, which paleomagnetic and ammonite biogeographic evidence indicates was in the northern hemisphere within 30° of the equator during the Early to Middle Jurassic.
Studies of the abundance of spumellarians vs. nassellarians indicate thatnassellarians predominate, are abundant and diverse in deeper-water deposits (middle Toarcian and lower Bajocian shales) whereas spume Marians, particularly those with multi-layered or spongy tests, dominate in shallow-water deposits (upper middle Toarcian to Aalenian sandstones). Shallow-water nassellarians are much less diverse but a few species (all multicyrtids with thickened tests) are very abundant. Depth appears to be the major factor controlling radiolarian distribution patterns in this relatively shallow-water setting.
Studies of eustatic sea-level changes throughout the Jurassic have indicated that major phases of sea-level rise occurred in the early to mid Toarcian and in the early Bajocian with a major phase of sea-level lowering in the late Toarcian to Aalenian; detailed study of the radiolarian faunal succession in the Queen Charlotte Islands appears to confirm this major worldwide trend. / Science, Faculty of / Earth, Ocean and Atmospheric Sciences, Department of / Graduate
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REESTABLISHMENT OF A QUEEN CONCH, LOBATUS GIGAS, BREEDING POPULATION IN A MARINE PROTECTED AREA IN THE BAHAMASUnknown Date (has links)
The queen conch, Lobatus gigas, is key to the Bahamian way of life. Recent studies suggest that commercial stocks will be depleted in The Bahamas in 10-15 years. In response to this, an egg farm was established in a historic breeding ground in Moriah Harbour Cay National Park, Exuma, Bahamas. Previously used for aquaculture, the egg farm concept was tested as a restoration method. Conch were tagged (n=251) and stocked in a 1,385 m2 (0.14 ha) circular enclosure at an equivalent density of 1,813/ha or 1 conch/5.5 m2. The egg farm was visited every 24-48 hours during the study period (May 26-August 14, 2019) to examine conch distribution, burial, predation, breeding, and egg mass laying. Queen conch Essential Fish Habitat was characterized in this study, contributing to a knowledge gap concerning conch spawning areas. No egg masses were laid, despite temperature, sediment solid-phase organics, calcium carbonate, and other seagrass habitat characteristics displaying similarities to previous studies in which conch spawned. It is speculated that egg laying did not occur due to handling disturbances, which may have caused the conch to resorb their gonads. Comprehensive recommendations are made for future egg farms intended for restoration. / Includes bibliography. / Thesis (M.S.)--Florida Atlantic University, 2020. / FAU Electronic Theses and Dissertations Collection
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Ritualistic Equestrianism: Status, Identity, and Symbolism in Tudor Coronation CeremoniesBlair, Keri 01 May 2020 (has links)
The crowning of a King or Queen of England is and remains an essential part of English tradition. For centuries, British subjects have flocked to the city streets to catch a glimpse of their next monarch. For the Tudors, the spectacle of pageantry was often an ostentatious display of wealth and grandeur. Using horses as an historical lens, this study will examine four different components of equestrianism in Tudor coronation ceremonies: The King’s Champion, the Gilded Spurs, the Master of the Horse, and the Horse of Honor. Despite significant political, religious, and cultural changes that occurred during the Tudor era, these four components remained an essential part of coronation ceremonies and, indeed, was elevated in status, identity, and symbolism to parallel the rise of horse culture in early modern England.
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Absence of Consistent Diel Rhythmicity in Mated Honey Bee Queen BehaviorJohnson, Jennifer N., Hardgrave, Emily, Gill, Curtis, Moore, Darrell 01 July 2010 (has links)
Relatively little is known about the temporal control of behavior of honey bee queens under natural conditions. To determine if mated honey bee queens possess diel rhythmicity in behavior, we observed them in glass-sided observation hives, employing two focal studies involving continuous observations of individual queens as well as a scan-sampling study of multiple queens. In all cases, all behaviors were observed at all times of the day and night. In four of the five queens examined in focal studies, there were no consistent occurrences of diel periodicity for any of the individual behaviors. A more encompassing measure for periodicity, in which the behaviors were characterized as active (walking, inspecting, egg-laying, begging for food, feeding, and grooming self) or inactive (standing), also failed to reveal consistent diel rhythmicity. Furthermore, there were no consistent diel differences in the number of workers in the queen's retinue. Behavioral arrhythmicity persisted across seasons and despite daily changes in both light and temperature levels. Both day and night levels of behavioral activity were correlated with daytime, but not with nighttime, ambient temperatures. The behavior of the one exceptional queen was not consistent: diurnal activity patterns were present during two 24-h observation sessions but arrhythmicity during another. Based on the behavior observed by all but one of the queens examined in this work, the arrhythmic behavior by the mated honey bee queen inside the colony appears to be similar to that exhibited by worker bees before they approach the age of onset of foraging behavior.
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Questions de genre dans les Mémoires de Marguerite de ValoisBergeron, Elise. January 1999 (has links)
No description available.
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Chastity, the Reformation context, and Spenser's Faerie Queene, book 3Upham, Arthur G. January 1995 (has links)
No description available.
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Romarchite and Other Corrosion Phases on Metal Artifacts from the Queen Anne's Revenge (1718)Dunkle, Stacie E. 29 April 2002 (has links)
Metal artifacts from the pirate Blackbeard's flagship, Queen Anne's Revenge (1718), were studied and a preliminary assessment of the corrosion products that have formed on them is presented. Artifacts made of iron, lead, tin, copper, mercury, gold, and silver were recovered from the site with only those made of precious metals displaying no corrosion products. Detailed analysis was conducted of the surfaces of pewter artifacts, made from a tin-rich alloy, revealing corrosion products composed of romarchite (SnO), hydroromarchite (5SnO.2H2O), and abhurite (Sn3O(OH)2Cl2). For comparison, corroded pewter artifacts originating from five other archaeological sites submerged in seawater, dating to between ~1550 and 1733, were analyzed. All of these samples also exhibit abhurite, romarchite, and hydroromarchite, however, some of the artifacts also display cassiterite (SnO2). Textural analysis indicates that abhurite is the first alteration product to arise, followed by romarchite and hydroromarchite and, in some cases, ending with the formation of cassiterite. The absence of cassiterite on many samples demonstrates that, while appearing to be stable under the conditions that were present, the phase has not yet had time to form. Because of the very limited stability field for romarchite, its presence on these artifacts seems to be the result of a kinetic effect, while its universal appearance suggests that it is a required step in the oxidation of pure tin to the final most stable phase of cassiterite. Knowledge of the stability of pewter corrosion products and their effectiveness as agents of passivation can provide insight into the processes of tin corrosion. / Master of Science
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The Origin and Tectonic Setting of Tow Hill, Queen Charlotte IslandsTimms, Catherine E. 04 1900 (has links)
<p> Tow Hill is a 109m butte located on the north shore of Graham Island, Queen Charlotte Islands. It is composed of a massive, 105m thick layer of olivine tholeiite, underlain by thin sills of tholeiitic basalt and interbedded sediments of the Skonun Formation. The age of this basalt body has been estimated to be less than 5Ma. Three hypotheses have been proposed as to the origin of Tow Hill: 1. a sill intrusion; 2. hydroclastic material; and 3. a lava flow or flows. Macroscopic features observed on Tow Hill do not indicate an origin and each of the three hypotheses can adequately explain the features. Petrographical studies indicate that the basalt is not fragmental and thus, the second hypothesis can be rejected. Neither of the two remaining hypotheses can be strictly accepted or rejected with petrographical examination. Chemical analyses indicate that Tow Hill is made up of "within plate" basalts which are probably related to activity associated with rifting and/or transtension in a continental environment. This constrains the late Tertiary tectonic history of the Queen Charlotte Islands in that any model of the tectonics of this area must involve rifting and/or transtension.</p> / Thesis / Bachelor of Science (BSc)
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Queen Isabella and the Spanish Inquisition: 1478-1505Nykanen, Lori 01 December 2014 (has links)
Queen Isabella (1451-1505) daughter of King John II of Castile and Queen Isabella of Portugal has been accredited for some of the most famous accomplishments of medieval Spain. Through her succession to the Castilian throne in 1479 Isabella created a secular government, which enabled her to restore the monarch's power and wealth, and gave her a wide reaching authority over her kingdom. The Queen, being a pious Catholic, reestablished Catholicism as the official religion of Castile and brought forward a tribunal to help her reinforce her desires for sincere Christian piousness and to bring retribution to those who were heretical and insincere in their new conversions to the Catholic faith. This Spanish tribunal was established in 1478, blessed by Pope Sixtus IV, and would eventually become infamously known as the Black Legend or the Spanish Inquisition. Through the disguise of a religious tribunal the Queen's Inquisition performed a duel purpose; acting as a secret police with long reaching tentacles that created as much fear and terror to the kingdom as its tribunal Auto de Fe's. The social-religious context of Castilian life changed drastically underneath Isabella's Inquisition, whose direct influence caused the Jewish population to faltered and be ultimately expelled in 1492. Queen Isabella's ambitions, both secular and religious, brought the abrupt ending of seven hundred years of religious blending known as the Convivencia throughout her kingdom and created a large newly converted Catholic community named the Conversos that would ultimately challenge the old Christian communities and the Spanish Inquisition for the next three centuries to maintain their rightful place in Castilian society.
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