997 resultados para 193-1190C


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Demokratischer Volksverein, Uhland-Feier, Dank für ein Gedicht

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Briefe zwischen Mitarbeitern des Instituts für Sozialforschung und Max Horkheimer, 1964-1973; 13 Briefe und Beilagen zwischen dem Verwaltungsleiter IfS Siegfried Geissler und Max Horkheimer, 1968-1973; 9 Briefe zwischen Klaus Körber (Institut für Sozialforschung) und Max Horkheimer, 1971-1973; 2 Briefe zwischen dem Professor Rudolf Gunzert und Max Horkheimer, 1972; 2 Briefe zwischen Dr. Joachim Bergmann (Institut für Sozialforschung) und Max Horkheimer, 1971; 2 Briefe zwischen dem Professor Gerhard Brandt und Max Horkheimer, 1971; 6 Briefe zwischen Herbert Ludwig (Institut für Sozialforschung) und Max Horkheimer, 1966-1967; 3 Briefe von Max Horkheimer an Professor Franz Böhm, 1966; Briefe zwischen den Mitarbeitern des Instituts für Sozialforschung und Max Horkheimer, 1955-1959; 4 Briefe von Jürgen Habermas an Max Horkheimer, Frankfurt, 1957-1959; 3 Briefe zwischen Christoph Oehler und Max Horkheimer, 1959; 13 Briefe zwischen Ludwig von Friedeburg und Max Horkheimer, 1955-1959; 1 Brief von Werner Wilkening an Max Horkheimer, 1958; 1 Brief von Gerhard Brandt an Max Horkheimer, 1958; 1 Brief von Max Horkheimer an den Dekan Helmut Viebrock, 1958; 2 Briefe von Egon Becker mit Helge Pross und Ludwig Friedeburg an Max Horkheimer, Frankfurt, 1958-1959; 2 Briefe von Helge Pross mit Egon Becker und Ludwig Friedeburg an Max Horkheimer, Frankfurt, 1958-1959; 1 Brief von Dieter Arenz an Max Horkheimer, Frankfurt, 1956; Briefe vom und an das Institut für Sozialforschung (Advisory Board of the Institute of Social Research), 1940-1947; Briefe und Briefentwürfe an und von Mitgliedern des Advisory Board betreffend die Zusendung von Max Horkheimer "Eclipse of Reason" und Karl August Wittvogel/Olga Lang, "Chinese Family and Society"; vom Institut für Sozialforschung, 1946-1947; 1 Brief von Edwin Borchard vom Institut für Sozialforschung, 1947; 1 Brief von Friedrich Pollock an Alfred E. Cohn, Los Angeles, 1947; 1 Brief von Friedrich Pollock an Stephan Duggan, Los Angeles, 1947; 2 Briefe zwischen Lloyd K. Garrison und Friedrich. Pollock, 1947; 1 Brief von Friedrich Pollock an Calvin B. Hoover, Los Angeles, 1947; 1 Brief von Friedrich Pollock an Philip C. Jessup, Los Angeles, 1947; 1 Brief von Friedrich Pollock an Wesley C. Mitchell, Los Angeles, 1947; 1 Brief von Friedrich Pollock an William A. Neilson, Los Angeles, 1947; 1 Brief von Friedrich Pollock an Frederick M. Padelford, Los Angeles, 1947; 1 Brief von Friedrich Pollock an Thorsten Sellin, Los Angeles, 1947; 3 Briefe zwischen John Whyte und Friedrich Pollock, 1947; 2 Briefe zwischen Louis Wirth und Friedrich Pollock, 1947; 1 Brief von Friedrich Pollock an Howard Woolston, Los Angeles, 1947; 1 Brief von George H. Sabine an das Institut für Sozialforschung, Ithaca, New York, 1946; Briefe und Briefentwürfe an und von Mitgliedern des Advisory Board betreffend den Druck eines neuen Briefkopfs des Instituts, 1940; 1 Brief von Leo Löwenthal, Pacific Palisades an Margot von Mendelssohn, 1942; 1 Brief von Leo Löwenthal an Margot von Mendelssohn, Pacific Palisades, 1942; 1 Brief von Max Horkheimer an K. Pilser, 1942; 2 Briefe zwischen Charles A. Beard und Max Horkheimer, 1940; 2 Briefe zwischen Edwin M. Borchard und Max Horkheimer, 1940; 3 Briefe zwischen Henry Sloane Coffin und Max Horkheimer, 1940; 2 Briefe zwischen Morris R. Cohen und Max Horkheimer, 1940; 2 Briefe zwischen Alfred E. Cohn und Max Horkheimer, 1940; 2 Briefe zwischen Stephen Duggan und Max Horkheimer, 1940; 2 Briefe zwischen dem Soziologen Henry Pratt Fairchild und Max Horkheimer, 1940; 2 Briefe zwischen Sidney B. Fay und Max Horkheimer, 1940; 2 Briefe zwischen Lloyd K. Garrison und Max Horkheimer, 1940; 1 Brief von Max Horkheimer an Calvin B. Hoover, 1940; 2 Briefe zwischen Robert M. Hutchins und Max Horkheimer, 1940; 2 Briefe zwischen Philip C. Jessup und Max Horkheimer, 1940; 2 Briefe zwischen Lewis L. Lorwin und Max Horkheimer, 1940; 2 Briefe zwischen Robert S. Lynd und Max Horkheimer, 1940; 2 Briefe zwischen Robert M. MacIver und Max Horkheimer, 1940; 2 Briefe von Max Horkheimer an Charles H. McIlwain, 1940; 2 Briefe zwischen Charles E. Merriam und Max Horkheimer, 1940; 2 Briefe zwischen Wesley C. Mitchell und Max Horkheimer, 1940; 2 Briefe zwischen William A. Nielson und Max Horkheimer, 1940; 5 Briefe zwischen Howard W. Odum und Max Horkheimer, 1940; 3 Briefe zwischen Frederick M. Padelford und Max Horkheimer, 1940; 3 Briefe von Max Horkheimer an Max Radin, 1940; 2 Briefe zwischen George H. Sabine und Max Horkheimer, 1940; 2 Briefe zwischen Thorsten Sellin und Max Horkheimer, 1940; 2 Briefe zwischen James T. Shotwell und Max Horkheimer, 1940; 1 Brief von dem Soziologen Louis Wirth an Franz Neumann, Chicago, 1940; 1 Brief von Louis Wirth an Franz L. Neumann, Chicago, 1940; 3 Briefe zwischen Howard Woolston und Max Horkheimer, 1940;

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Vorbesitzer: Vincentius Marini;

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Postcruise X-ray diffraction (XRD) data for 95 whole-rock samples from Holes 1188A, 1188F, 1189A, and 1189B are presented. The samples represent alteration types recovered during Leg 193. The data set is incorporated into the shipboard XRD data set. Based on the newly obtained XRD data, distribution of alteration phases were redrawn for Ocean Drilling Program Sites 1188 and 1189.

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Fil: Zecchin de Fasano, Graciela Cristina. Universidad Nacional de La Plata. Facultad de Humanidades y Ciencias de la Educación; Argentina.

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Bright red "jasperoids" were recovered at three positions during Leg 193 drilling below Roman Ruins (Site 1189) in the PACMANUS hydrothermal field. These do not represent fossil exhalative oxide deposits equivalent to those associated with sulfide chimneys at the Roman Ruins seafloor. Rather, they constitute an integral, relatively early stage involving oxidized fluids in the development of veins and breccias that characterize the mostly sulfidic stockwork zone intersected below Roman Ruins in Hole 1189B. They formed by growth of quartz in open spaces created by hydrofracturing, the characteristic feature being mostly euhedral cores dusted by tiny hematite flakes. In one occurrence there are also frondlike aggregates and possible earlier cavity linings of hematite, overgrown by quartz, that potentially formed by maturation of ferruginous gels first deposited in the openings. The trace element geochemistry of the jasperoids, apart from minor enrichment in uranium, provides no indication that they represent subsurface conduits for fluids that deposit Fe-Mn-Si at the seafloor, though this remains a possibility for some such deposits.

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The conventional model of leaching volcanic rocks as a source of metals in a seafloor hydrothermal systems has been tested by examining the behavior of Pb and other trace elements during hydrothermal alteration. ODP Leg 193 drill sites 1188 (Snowcap) and 1189 (Roman Ruins) on Pual Ridge in the eastern Manus Basin offshore eastern Papua New Guinea provide a unique three-dimensional window into an active back-arc hydrothermal system. We investigate by means of a LA-ICP-MS microbeam technique the capacity of Pb to be leached from a host volcanic rock exposed to various types and intensities of alteration. Our results are in general agreement with previous studies that utilized bulk analytical techniques but provide a more detailed explanation of the processes. Fresh representative dacitic lavas from the Pual Ridge have an average whole rock Pb content of 5.2 ppm, an average interstitial glass Pb content of 5.6 ppm and an average plagioclase Pb content of 1.0 ppm. Altered matrix samples have highly variable Pb values ranging from 0 to 52.4 ppm. High Pb values in altered samples are associated with a low temperature chlorite and clay mineral assemblage, in some cases overprinted by a high temperature (up to 350°C) silica-rich "bleaching" alteration. Only the most highly altered matrix samples have REE patterns that differ from the fresh Pual Ridge dacite. This may represent either different lava histories or alteration characteristics that have affected normally immobile REEs. Altered samples with the highest Pb values have similar REE patterns to those of the local unaltered lavas. They are compositionally similar to typical Pual Ridge dacites indicating a genetic relationship between the main regional volcanic suite and the subseafloor hydrothermally altered, Pb-enriched material. Relative loss/gain for Pb between the analyzed altered samples and a calculated precursor show a maximum relative gain of 901%. Samples with relative Pb gain from both drill sites are associated with lower temperature alteration mineral assemblages characterized by pervasive chloritization. The related lower temperature (220-250°C) neutral to slightly acidic fluids have been ascribed by others to return circulation of hydrothermal fluids that did not interact with seawater. Because altered samples have a higher Pb content than the fresh precursor, leaching of fresh volcanic rocks cannot be the source of Pb in the hydrothermal systems.