Hydrogeologic evidence for a continuous basal shear zone within a deep-seated gravitational slope deformation (Eastern Alps, Tyrol, Austria)

The currently inactive deep-seated gravitational slope deformation (DGSD) Sagspitz in Tyrol, Austria, covers an area of 3km2 and originated along a glacially over-steepened slope composed mainly of phyllites belonging to the Innsbruck Quartzphyllite Complex. Past mass movement processes caused the formation of fracture systems and slump bodies which consequently form the aquifers of relatively large springs in a rock type with generally very low permeability and poor porosity. Analysis of water chemistry, oxygen isotope, and field parameters of the springs emerging from the DGSD imply that multilevel aquifers exist and enabled the detection of continuous deep flow paths through the entire length of the mass movement from the main scarp to the toe of the slope. It is shown that the aquifer boundaries and spring emergences throughout the loosened rock mass can be correlated to the internal and basal shear zones of the DGSD so that this hydrogeological approach proved to be useful for evaluating the mass movement structur

Feedback between erosion and active deformation: geomorphic constraints from the frontal Jura fold-and-thrust belt (eastern France)

A regional tectono-geomorphic analysis indicates a Pliocene to recent rock uplift of the outermost segment of the Jura fold-and-thrust belt, which spatially coincides with the intra-continental Rhine-Bresse Transfer Zone. Elevated remnants of the partly eroded Middle Pliocene Sundgau-Forêt de Chaux Gravels identified by heavy mineral analyses allow for a paleo-topographic reconstruction that yields minimum regional Latest Pliocene to recent rock uplift rates of 0.05±0.02mm/year. This uplift also affected the Pleistocene evolution of the Ognon and Doubs drainage basins and is interpreted as being tectonically controlled. While the Ognon River was deflected from the uplifted region the Doubs deeply incised into it. Focused incision of the Doubs possibly sustained ongoing deformation along anticlines which were initiated during the Neogene evolution of the thin-skinned Jura fold-and-thrust belt. At present, this erosion-related active deformation is taking place synchronously with thick-skinned tectonics, controlling the inversion of the Rhine-Bresse Transfer Zone. This suggests local decoupling between seismogenic basement faulting and erosion-related deformation of the Mesozoic cover sequence

The Code of Protest. Images of Peace in the West German Peace Movements, 1945-1990

The article examines posters produced by the peace movements in the Federal Republic of Germany during the ColdWar, with an analytical focus on the transformation of the iconography of peace in modernity. Was it possible to develop an independent, positive depiction of peace in the context of protests for peace and disarmament? Despite its name, the pictorial selfrepresentation of the campaign ‘Fight against Nuclear Death’ in the late 1950s did not draw on the theme of pending nuclear mass death. The large-scale protest movement in the 1980s against NATO’s 1979 ‘double-track’ decision contrasted female peacefulness with masculine aggression in an emotionally charged pictorial symbolism. At the same time this symbolism marked a break with the pacifist iconographic tradition that had focused on the victims of war. Instead, the movement presented itself with images of demonstrating crowds, as an anticipation of its peaceful ends. Drawing on the concept of asymmetrical communicative ‘codes’ that has been developed in sociological systems theory, the article argues that the iconography of peace in peace movement posters could not develop a genuinely positive vision of peace, since the code of protest can articulate the designation value ‘peace’ only in conjunction with the rejection value ‘war’

Ulrich Leitner, Imperium. Geschichte und Theorie eines politischen Systems. Frankfurt am Main/New York, Campus 2011

Dieser Beitrag ist mit Zustimmung des Rechteinhabers aufgrund einer (DFG-geförderten) Allianz- bzw. Nationallizenz frei zugänglich.Peer Reviewe

Imperium und Imperialismus

Der Begriff des Imperialismus, der während des 20. Jahrhunderts im Zentrum heftiger politischer Deutungskämpfe stand, hat den Blick auf die weltgeschichtliche Rolle der Imperien mehr getrübt als geschärft. Imperiumstheorien sind deswegen eher in kritischer Absetzung gegen Imperialismustheorien zu entwickeln als in deren Gefolge und gemäß deren Vorgaben

Diagnose "Postheroisch": Rezension zu "Postheroische Helden: Ein Zeitbild" von Ulrich Bröckling

Ulrich Bröckling: Postheroische Helden - Ein Zeitbild. Berlin: Suhrkamp 2020. 978-3-518-58747-