The Origin of Soluble Salts in Rocks of the Thebes Mountains, Egypt: The Damage Potential to Ancient Egyptian Wall Art

Soluble salts are indigenous to the marine sediments of the Esna Formation and Thebes Formation in central Egypt. Natural weathering processes and human impact cause salt efflorescence in tombs and on walls of ancient Egyptian monuments in the Theban Necropolis, resulting in the disintegration of wall paintings and carved hieroglyphs. Determination and quantification of soluble salts and measurements of the porosity were done on tomb marls in order to understand the origin and damage potential of the salts in the royal tombs of the Valley of the Kings. The study shows that sodium chloride (NaCl) is the predominant salt species. Sulphates, anhydrite (CaSO₄) and gypsum (CaSO₄ . 2 H₂O) also occur in the limestone deposits of the Thebes Formation and the underlying shale deposits of the Esna Formation. Member I of the Thebes Formation, into which most of the ancient tombs were hewn, shows the highest amount of soluble salts (up to 6·2 wt-% dry). In addition, the porosity and permeability of the marls in Member I are high, enhancing water molecules and brine migration. Wetting and drying of the tomb surfaces in the past has affected solution, transportation and recrystallization of water soluble minerals, and has led to major destruction of wall paintings and ornamentations. This study shows that large amounts of salt minerals still remain in the wall rocks. Future humidity changes due to flash floods and tourists may favour salt crystallization in the ancient Egyptian monuments. The authors urge the authorities to undertake steps to prevent further destruction to save the magnificent cultural heritage found in the Thebes area.     

Access and Property: A Question of Power and Authority

In this introduction we argue that access and property regarding natural resources are intimately bound up with the exercise of power and authority. The process of seeking authorizations for property claims also has the effect of granting authority to the authorizing politico‐legal institution. In consequence, struggles over natural resources in an institutionally pluralist context are processes of everyday state formation. Through the discussion of this theoretical proposition we point to legitimizing practices, territoriality and violence as offering particular insights into the recursively constituted relations between struggles over access and property regarding natural resources, contestations about power and authority, and state formation.     

Artificial Intelligence, 3D Documentation,and Rock Art—Approaching and Reflecting on the Automation of Identification and Classification of Rock Art Images

Journal of Archaeological Method and Theory - Rock art carvings, which are best described as petroglyphs, were produced by removing parts of the rock surface to create a negative relief. This...     

Booming solidarity: Sandinista Nicaragua and the West German Solidarity movement in the 1980s

This article explores the reasons for the strength and persistence of West German solidarity with Sandinista Nicaragua during the 1980s. The image of Nicaragua played a key role for activists, as it motivated commitment and identification with the revolution. Their positive perceptions were shaped by the revolutionary reforms in Nicaragua and an effective image campaign by the Sandinista government as well as by activists' political desires and their discontent with West German politics. By promoting their reform policies through a transnational communications infrastructure, by practising cultural and public diplomacy as well as by playing host to thousands of visitors, the Sandinistas encouraged supporters to identify with the revolutionary process and feel part of it at a time when many activists felt like an isolated leftist minority in the Federal Republic.     

A Reasonable Senselessness: Madness,Sovereignty and Neoliberal Reason in Horacio Castellanos Moya's Insensatez

Through a reading of Horacio Castellanos Moya's novel Senselessness and Guatemalan dictator Efrain Ríos Montt's counterinsurgency discourse, I argue in this article that madness, banished from the realm of reason with the rise of capitalism, resurfaces nowadays as a conceptual category able to disrupt the neoliberal manufacturing of bare life. I first examine how subversion was discursively constructed in Guatemala as a mental disease. I then discuss the narrator's behavior in the novel as a reasonable senselessness that by welcoming madness, understood as the moment of extreme doubt, both reveals and reacts against a shift in the locus of sovereignty ensuing from neoliberal reason's tightening grasp of the biopolitical sphere. This shift, I further argue, is increasingly placing most of the population in a relation of exception that resembles the zone of indistinction between life and death in which bare life is caught. I conclude by suggesting that Castellanos Moya's novel ultimately invites us to ponder the possibility of an other reason able to move beyond the extreme moment of certainty that the merging of state and neoliberal reason represents neoliberalism, sovereignty, Horacio Castellanos Moya, Efraín Ríos Montt, Guatemala.     

25 Jahre Metropolregionen in Deutschland im Spagat zwischen Raumordnung und Raumentwicklung. Ein Klassifizierungsvorschlag

Standort - Seit nunmehr einem Vierteljahrhundert gibt es auch in Deutschland Metropolregionen. Sie haben sich zu einem festen Instrument der Raumordnungspolitik entwickelt, vor allem um die...     

THE GREEN ECONOMY AND POST‐GROWTH REGIMES: OPPORTUNITIES AND CHALLENGES FOR ECONOMIC GEOGRAPHY

While mainstream economic geography is doing increasing research on green manufacturing and services, with a few notable exceptions, its predominant conceptual approaches to emerging modes of economic orientation continue to examine economic transitions somewhat unreflexively within the context of traditional growth paradigms. The aim of this article is to explore and critically examine neoliberal discourses on the green economy and smart growth by exploring contributions to debates on green economics proposed by ideas linked to post‐growth economies. Based on studies by scholars such as Tim Jackson and Serge Latouche, the article examines the contours of debates on post‐growth, décroissance (de‐growth) and prosperity without growth. We begin by examining growth debates and existing contributions by economic and other geographers to the exploration of alternatives to conventional growth‐centred economics. We then identify some emergent spatial facets of post‐growth transitions and utilize these to explore potential research topics and opportunities for empirical and conceptual contributions by economic geographers to academic and societal debates on economic transitions and post‐growth paradigms. Particular attention is paid to approaches currently discussed in economic geography, such as socio‐technical transition studies.