Dive Deeper: Journeys with Moby Dick

The topic of conversation is historian George Cotkin\u27s book, Dive Deeper: Journeys with Moby Dick, published by Oxford University Press in 2012. George is joined in conversation by Catherine Waitinas of English.https://digitalcommons.calpoly.edu/convocpauth/1004/thumbnail.jp

Petrology of a margarite-bearing meta-anorthosite from Seljeneset, Nordfjord, western Norway: Implications for the P-T history of the Western Gneiss Region during Caledonian uplift

The Western Gneiss Region of Norway contains relics of eclogite and high-pressure granulite that have been extensively overprinted by amphibolite-facies assemblages. A meta-anorthosite from Seljeneset. Nordfjord, contains fine-grained margarite+quartz+plagioclase+/-muscovite clots set in a zoisite+quartz+plagioclase+/-clinozoisite matrix. In some clots relict kyanite is preserved. Equilibria modeled in the CASH system indicate a retrograde P-T path that begins in the kyanite+zoisite field (P>8.2 kbar), passes through reaction (1), kyanite+zoisite+quartz[right harpoon over left]anorthite+H2O, between 610[deg]C and about 800[deg]C, and finally through reaction (2), kyanite+anorthite+H2O[right harpoon over left]margarite+quartz. The sodic composition of plagioclase in reaction (1) suggests that pressures in excess of 15-17 kbar (at 750-800[deg]C) may have been experienced during Silurian eclogite-facies metamorphism. The simplified CASH reaction (2) occurs between invariant points at 4.3 kbar,520[deg]C and 8.2 kbar,610[deg]C, but polyvariance, due to variable Na solid solution, broadens the reaction into a band about 150[deg]C wide. Cooling through 500[deg]C occurred about 410 Ma ago. This study provides the first well-defined P-T path for Caledonian retrograde metamorphism at amphibolite-facies conditions.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/27410/1/0000444.pd

Richard Wright's Globalism

This essay takes a long view of Wright’s work, arguing that his racial consciousness always extended beyond national boundaries and was forged from a globalist perspective. This outlook is not, as some critics have maintained, a late-stage development in Wright’s career, but rather the predominant theme that unites his oeuvre with a single continuous thread. Wright’s work—including his fiction, essays, journalism, poetry, letters, and unpublished pieces spanning from the beginning of his career in the mid-1930s to his deathbed writings of 1960—crystallizes his globalist imagination even as it shifts registers: from an anti-fascist political solidarity framed by Marxist internationalism to an affective kinship among formerly colonized peoples expressed through existentialist proto-postcolonialism, and finally a transcendent poetics in search of universal humanism