3 resultados para Warren Dunes State Park (Mich.)
em Brock University, Canada
Resumo:
The drumlin sediments at Chimney Bluffs, New York appear to represent a block-inmatrix style glacial melange. This melange comprises sand stringers, lenses and intraclasts juxtaposed in an apparently massive diamicton. Thin section examination of these glacigenic deposits has revealed microstructures indicative of autokinetic subglacial defonnation which are consistent with a deformable bed origin for the diamicton. These features include banding and. necking of matrix grains, oriented plasma fabrics and the formation of pressure shadows at the long axis ends of elongate clasts. Preservation of primary stratification within the sand intraclasts appears to suggest that these features were pre-existing up-ice deposits that were frozen, entrained, then deposited as part of a defonning till layer beneath an advancing ice sheet. Multi-directional micro-shearing within the sand blocks is thought to reflect the frozen nature of the sand units in such a high strain environment. It is also contended that dewatering of the sediment pile leading to the eventual immobilisation of the defonning till layer was responsible for opening sub-horizontal fissures within the diamicton. These features were subsequently infilled with mass flow poorly sorted sands and silts which were subjected to ductile defonnation during the waning stages of an actively deforming till layer. Microstructures indicative of the dewatering processes in the sand units include patches of fine-grained particles within a coarser-grained matrix and the presence of concentrated zones of translocated clays. However, these units were probably confined within an impermeable diamicton casing that prevented massive pore water influxes from the deforming till layer~ Hence, these microstructures probably reflect localised dewatering of the sand intraclasts. A layered subglacial shear zone model is proposed for the various features exhibited by the drumlin sediments. The complexity of these structures is explained in terms of ii superposing deformation styles in response to changing pore water pressures. Constructional glaciotectonics, as implied by the occurrence of sub-horizontal fissuring, is suggested as the mechanism for the stacking of the sand intraclast units within the diamicton. The usefulness of micromorphology in complimenting the traditional sedimentology of glacigenic deposits is emphasised by the current study. An otherwise massive diamicton was shown to contain microstructures indicative of the very high strain rates expected in a complexly deforming till layer. . It is quite obvious from this investigation that the classification of diamictons needs to be re-examined for evidence of microstructures that could lead to the re-interpretation of diamicton forming processes. RESUME Le pacquet de sediments drumlinaire de Chimney Bluffs, New York, represent un "bloc-en-matrice" genre de melange glaciale. Des structures microscopique comprennent l'evidence pour la defonnation intrinseque attribuee a l'origine lit non resistant du drumlin. PreselVation des structures primaires au coeur des blocs arenaces suggere que ceux sont des depots preexistant qui furent geles, entraines et par la suite sedimentes au milieu d'une couche de debris sous-glaciaires en voie de deformation. Des failles microscopiques a l'interieur des blocs arenaces appuient aussi l'idee d'un bloc cohesif (c'est-a-dire gele) au centre d'un till non resistant. Des implications significatives s'emergent de cette etude pour les conditions sous-glaciaire et les processus de la formation des drumlin.
Resumo:
Niagara Falls State Park is the oldest state park in the United States. It is also referred to as the State Reservation (this title appears on page 2 of the program). Frederick Olmstead was the landscape architect of the park and he also designed Central Park in New York City. In July 1885, the state of New York passed laws to issue bonds for the establishment of the Niagara Reservation. This park is a National Historic Landmark and covers over 400 acres. Close to 140 acres of that land is under water. In attendance at the opening were: the Governor of the State of New York, the officers of the State, members of the Niagara Falls Association of New York City and civil and military personnel. The commissioners at the time of the opening were: William Dorsheimer, Andrew H. Green, Martin B. Anderson, T. Hampden Robb and Sherman S. Rogers.
Resumo:
Warren Hartman was born in 1942 in Toronto, Ontario. He received a B.A. in Fine Arts and Drama from Brock University in 1981 and a Masters of Arts in Humanities at the State University of New York at Buffalo in 1987. In the 1950s he did considerable work as a child-actor both in theatre and television. From 1953 to 1961 he was in the New Play Society under the direction of Dora Mavor Moore. His last two years there were spent as a scholarship student. From 1963 to 1966 he did an apprenticeship with Suzanne Mess, Head of Costume Design at The Canadian Opera Company in Toronto. In 1976 Warren attended a Master Class in Scenography at the Banff School of Fine Arts with Josef Svoboda. In the spring of 1970 Warren was a guest designer at Brock University and from 1970 to 1972 he remained at Brock as resident designer and special lecturer. During this time he was also an instructor and costume designer at Sheridan College in Oakville. It was in 1972 that he became the designer-in-residence at Brock University. From 1984 he held the position of Associate Professor at The Department of Fine Arts at Brock University until the fall of 1996. Some of the highlights of Warren’s career also include: stage managager with the Street Hat Players in Port Carling, Ontario, 1960-1961; a freelance designer for over 100 shows; costume coordinator(production manager) for the Canadian Opera Company, 1964 -1970; resident costume designer for The Canadian Opera Company, 1965- 1970; founder and artistic director of Dei Gelosi Campagnia, St.Catharines, Ontario, 1970-1973; freelance director of some thirty-five shows; co-producer for Quebec City Summer Stock Company, Quebec City, Quebec, 1975; a consultant with Alberta Culture for the Provincial Government of Alberta, 1986-1987 and associate artistic director at Theatre Network, Edmonton, Alberta, 1986-1987. Warren Hartman was the recipient of the Jean Chalmers Award for contributions to Canadian Theatre for persons 25 years of age or under, in 1965. He was a founding member of Associated Designers of Canada and was affiliated with Canadian Actors Equity. Warren Hartman died on Feb. 11, 1998 several days after suffering a massive stroke. A memorial service was held at Brock University in May of 1998 and a bursary fund was established in his name.