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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
11

Petrogenesis and Concentric Zonation of the Belchertown Intrusive Complex, West-Central Massachusetts

Van Wagner, Karen June 11 July 2017 (has links) (PDF)
The Belchertown Intrusive Complex is a ~164 km2 Devonian pluton that intruded Paleozoic metasedimentary and metavolcanic rocks in west-central Massachusetts. Intrusion of the pluton was synchronous with Acadian deformation (Ashwal, 1974). The complex is concentrically zoned, with a core of orthopyroxene-biotite monzodiorite, a middle zone of clinopyroxene-hornblende-biotite granodiorite, and an outermost zone of hornblende-biotite granodiorite. Zoning from a more to less hydrous mineral suite from the outside to the inside of the pluton led Ashwal (1974) to suggest that metamorphic hydration most strongly affected the outermost zones of the complex. Basaltic inclusions occur most commonly near the edges of the pluton. Many of these inclusions preserve textures suggestive of mafic-felsic magma interaction. The abundance of basaltic enclaves on the edges of the complex may suggest a bowl-shaped structure, with lower more mafic-dominated rocks exposed on the edges of the complex. Bulk rock major element analyses of granitoids, basalts and gabbros, and diorites from all zones of the complex show that intermediate samples, regardless of zone, plot on a mixing line between mafic and felsic end members, supporting a model in which mafic and felsic magmas may have mingled and mixed. Trace element analyses of intermediate-composition samples are similar across the entire complex, with enrichment in large ion lithophile elements and a pronounced Nb trough. In contrast, trace element concentrations in both the mafic rocks (basaltic enclaves and gabbroic inclusions), and in the granitoids, show considerable variation. The diversity of composition within both the mafic and felsic end-members suggests that either fractionation or differing degrees of partial melting of source rocks may account for these compositional ranges. Sanukitoids comprise a majority of the inner zone, and point to the mixing of parental melts at depth in a subduction tectonic regime as a likely model of petrogenesis for the complex.
12

A Symbolic Prison: A Prisoner's Story as Masculinity Crisis Narrative in Bronson

Shupe, James Benjamin 05 May 2012 (has links) (PDF)
For this project I analyze the film Bronson, focusing on its connection to the contemporary masculinity crisis discourse or the belief that traditional notions of masculinity are in peril due to changing gender norms and women's social progress. I argue Bronson privileges a narrow, violent conception of masculinity through its presentation of violence and domination over other men. I use Ernest Bormann's Symbolic Convergence Theory to analyze how the film makes sense of the real life events it is based on in a way that appeals to the contemporary masculinity crisis discourse. I argue that Bronson is a notable representation of masculinity because it recounts the life of an infamous criminal in a fashion that frames his actions as a resistance to effeminate men. The film's treatment of masculinity is problematic because it advances a restrictive notion of masculinity that involves violent, destructive behavior.

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