Investigation of coupled hydraulic–geomechanical processes at the KTB site: pressure‐dependent characteristics of a long‐term pump test and elastic interpretation using a geomechanical facies model

The German Continental Deep Drilling Program comprising a pilot borehole down to 4000 m and a main borehole down to 9101 m in southeast Germany (KTB) is continuing to provide a unique opportunity for the identification of important factors and processes in deep‐seated fluid and energy transfer. In situ stress conditions significantly impact flow, transport and exchange characteristics of fracture networks that dominate the permeability of crystalline reservoir rocks. In this paper, several scales of information are combined to present a fully three‐dimensional hydraulic finite element model of the principal KTB fault zones, and linked to a geomechanical model describing the alteration of the hydraulic parameters with stress changes caused by fluid extraction. The concept of geomechanical facies is introduced to define and characterize architectural elements in the subsurface system. Evaluation of a long‐term pump test in the KTB pilot hole, June 2002–July 2003, coupled with a geomechanical model gives an insight into some of the elastic and nonelastic processes controlling hydraulic transport in the basement rocks. Trends in the decline of the permeability and the degree of storage in the system could only partially be explained by elastic processes, clearly indicating the importance of nonelastic processes. A number of inelastic processes are suggested as areas for further research.     

Osseous talocalcaneal coalition in a medieval skeleton (ca. 1050 AD)

Tarsal coalition (TC) is defined as an abnormal fusion of two or more tarsal bones. The fusion may be fibrous, cartilaginous or osseous and can be congenital or acquired in response to infection, articular disorders, trauma, neoplasm or surgery. We report a case of a talocalcaneal (TCC) type of tarsal coalition in a medieval skeleton from Northwest Germany dating to ca. 1050 AD. The fusion is of osseous type. Plain AP radiographs and computed tomography confirmed the macroscopic diagnosis. Copyright © 2009 John Wiley & Sons, Ltd.     

CIRCLE DANCE FESTIVAL “GORKA”: TRADITIONS AND INNOVATIONS*

The circle dance festival “gorka” is one of the oldest Russian rituals of the spring and summer cycle, preserved by the Priestless Old Believers (Pomortsy) living in the Ust-Tsilma Region of the Komi Republic. This ritual activity requires the performance of seven dance fi gures or moves. Particular songs that are called “gorka songs,” correspond to each of the fi gures. In the past, the symbolism of the circle dance was linked to the renewal of life. The transition of adolescents to adulthood was arranged in ritual form; dramatized songs helped young people to fi nd potential marriage partners and to approve couples that had been formed earlier. The modern festival is held as a tribute to the ancestors. A recent innovation can be seen in the children's “gorka” and the inclusion of children into a single circle dance.     

The Measurement of Socio‐economic Gender Inequality Revisited

The measurement of socio‐economic gender inequality has not received much attention from the development literature despite its great relevance and important policy implications. In this article we present two new indices to measure gender inequalities that overcome some of the limitations inherent in the UNDP gender‐related indices and other indices presented in the literature. The proposed new indices are conducive to exploring the extent to which gender gaps favour women and/or men, and to showing the contribution of the different subcomponents to the overall levels of gender inequality. Using UNDP data, our calculations suggest that the levels of gender inequality are mostly explained by differences in the earned‐income subcomponent and that the average difference between women's and men's achievement levels has been reduced by 12 per cent during the period 1995–2005.     

CHARACTERIZING THE SEDIMENTARY HISTORY OF CAVE DEPOSITS,USING ARCHAEOMAGNETISM AND ROCK MAGNETISM,ATAPUERCA (NORTHERN SPAIN)

We use a combination of rock magnetism (anisotropy of magnetic susceptibility, AMS) and magnetic polarity to characterize cave deposits and as a proxy for sedimentary fabric. In three localities at the Atapuerca archaeological site (Galeria, Gran Dolina and Sala de los Cíclopes), magnetic foliation (K_max/K_int) is always greater than lineation (K_int/K_min), consistent with a primary, depositional, sedimentary fabric. Our results, although preliminary, reveal a higher degree of anisotropy in autochtonous deposits compared to allochthonous deposits, possibly indicative of a higher hydrodynamic regime in the former. At two localities the magnetic lineation (K_max) defines a cluster, which is thought to be antipodal to the palaeocurrent direction. Hence we are able to retrieve palaeoflow directions in deposits that otherwise lack any other sedimentary structure. We conclude that AMS is a powerful tool for determining the hydrodynamic character of depositional environments in cave sediments at the Atapuerca archaeological site. A better understanding of the depositional environment and how sedimentation occurred allows reconstruction of the karst evolution and ultimately a better definition of human interaction with the environment.