Genetic studies of Cu-Pb-Zn mineralisation in Triassic red beds of Western Europe

Continental red bed sequences are host, on a worldwide scale, to a characteristic style of mineralisation which is dominated by copper, lead, zinc, uranium and vanadium. This study examines the features of sediment-hosted ore deposits in the Permo-Triassic basins of Western Europe, with particular reference to the Cu-Pb-Zn-Ba mineralisation in the Cheshire Basin, northwest England, the Pb-Ba-F deposits of the Inner Moray Firth Basin, northeast Scotland, and the Pb-rich deposits of the Eifel and Oberpfalz regions, West Germany. The deposits occur primarily but not exclusively in fluvial and aeolian sandstones on the margins of deep, avolcanic sedimentary basins containing red beds, evaporites and occasionally hydrocarbons. The host sediments range in age from Permian to Rhaetian and often contain (or can be inferred to have originally contained) organic matter. Textural studies have shown that early diagenetic quartz overgrowths precede the main episode of sulphide deposition. Fluid inclusion and sulphur isotope data have significantly constrained the genetic hypotheses for the mineralisation and a model involving the expulsion of diagenetic fluids and basinal brines up the faulted margins of sedimentary basins is favoured. Consideration of the development of these sedimentary basins suggests that ore emplacement occurred during the tectonic stage of basin evolution or during basin inversion in the Tertiary. ð34S values for barite in the Cheshire Basin range from 13.8% to 19.3% and support the theory that the Upper Triassic evaporites were the principal sulphur source for the mineralisation and provided the means by which mineralising fluids became saline. In contrast, δ34S values for barite in the Inner Moray Firth Basin (mean δ34S = + 29%) are not consistent with simple derivation of sulphur from the evaporite horizons in the basin and it is likely that sulphur-rich Jurassic shales supplied the sulphur for the mineralisation at Elgin. Possible sources of sulphur for the mineralisation in West Germany include hydrothermal vein sulphides in the underlying Devonian sediments and evaporites in the overlying Muschelkalk. Textural studies of the deeply buried sandstones in the Cheshire Basin reveal widespread dissolution and replacement of detrital phases and support the theory that red bed diagenetic processes are responsible for the release of metals into pore fluids. The ore solutions are envisaged as being warm (60-150%C), saline (9-22 wt % equiv NaCl) fluids in which metals were transported as chloride complexes. The distribution of δ34S values for sulphides in the Cheshire Basin (-1.8% to + 16%), the Moray Firth Basin (-4.8% to + 27%) and the German Permo-Triassic Basins (-22.2% to -12.2%) preclude a magmatic source for the sulphides and support the contention that sulphide precipitation is thought to result principally from sulphate reduction processes, although a decrease in temperature of the ore fluid or reaction with carbonates may also be important. Methane is invoked as the principal reducing agent in the Cheshire Basin, whilst terrestrial organic debris and bacterial reduction processes are thought to have played a major part in the genesis of the German ore deposits.

Local governance in Western Europe

Book review: Local governance in Western Europe Peter John Sage, 2001, 202 pp., £60.00 (hb), £18.99 (pb) ISBN: 0761956360 (hb) ISBN: 0761956379 (pb)

Market orientation in the service sector of the transition economies of central Europe

The Narver and Slater market orientation scale is tested in the context of service firms in the transition economies of central Europe and found to be both valid and reliable. The survey examined levels of market orientation in 205 business to business services companies and 141 consumer services companies in Hungary, Poland and Slovenia. As predicted by the predominantly western marketing literature, those service firms with higher levels of market orientation; were more often found in turbulent, rapidly changing markets; were more likely to pursue longer term market building goals rather than short term efficiency objectives; more likely to pursue differentiated positioning through offering superior levels of service compared to competitors; and also performed better on both financial and market based criteria. A number of different business approaches, however, are evident in the transition economies suggesting that other business orientations may co-exist with a market orientation creating a richer and more complex set of organizational drivers.

War crimes, conditionality and EU integration in the Western Balkans

The baleful legacy of the wars of the 1990s continues to dog the states and societies of the former Yugoslavia and has overshadowed the disappointingly slow and hesitant trajectory of the region towards the EU. At the start of the new millennium, with the removal of key wartime leaders from the political scene in both Croatia and Serbia, it was widely hoped that the region would prove able to ‘leave the past behind’ and rapidly move on to the hopeful new agenda of EU integration. The EU’s Copenhagen criteria, which in 1993 first explicitly set out the basic political conditions expected of aspirant EU Member States, proved effective in the case of the new democracies of Central and Eastern Europe in supporting the entrenchment of democratic norms and practices, and stimulating reconciliation and good neighbourly relations among countries with turbulent histories. Building on this experience, the Stabilisation and Association Process, launched for the countries of the Western Balkans in 1999, included both full cooperation with the International Criminal Tribunal for the former Yugoslavia (ICTY) and regional reconciliation among the political conditions set for advancing these countries on the path to EU integration. EU political conditionality was intended to support the efforts of new political leaders to redefine national goals away from the nationalist enmities of the past and focus firmly on forging a path to a better future. This Chaillot Paper examines the extent to which this strategy has worked, especially in the light of the difficulties it has encountered in the face of strong resistance to cooperation among sections of the former Yugoslav population, many of whom have not yet fully acknowledged the crimes committed during the 1990s. Key chapters in the volume raise the vital questions of leadership and political will. EU political conditionality does not work unless the EU has a partner ready and willing to ‘play the game’, which presupposes that EU integration has become the overriding priority on the national political agenda.

Regional interests in Europe:Wales and Saxony as modern regions in Europe

The question of how to organize and manage sustainable regional development has recently come to the fore in many places across the industrialized countries of Central and Western Europe, and especially within the European Union (EU).This book looks at the home-grown natural, economic and social, socio-political, political and administrative conditions which policy makers face, while also being subjected to numerous external influences. Political actors in less important EU regions The question of how to organize and manage sustainable regional development has recently come to the fore in many places across the industrialized countries of Central and Western Europe, and especially within the European Union (EU).This book looks at the home-grown natural, economic and social, socio-political, political and administrative conditions which policy makers face, while also being subjected to numerous external influences. Political actors in less important EU regions attempt to create and implement strategies of regional development in the context of regional policy-making by EU institutions, national governments and the globalization process

Irrelevant or transformative power? The OECD DAC and foreign aid policies in Central and Eastern Europe

The paper examines the impact of the OECD’s Development Assistance Committee (DAC) on the emerging foreign aid policies of the Central and Eastern European (CEEs) countries. The Czech Republic, Poland, Slovakia and Slovenia joined the DAC in 2013, and the committee has aimed to socialise them into the norms of the international development system. Generally, however, there is little evidence of impact due to the soft nature of the DAC’s policy recommendations, and the fact that the committee, reacting to the challenges to its legitimacy from non-Western donors, has become much less demanding towards potential members than in the past. The paper, however, argues that one must examine the processes of how the norm and policy recommendations of the DAC are mediated domestically. The case of the Czechepublic’s reforms in its foreign aid policy between 2007 and 2010 shows that domestic actors can use the OECD strategically to build support for their own cause and thus achieve seemingly difficult policy reform.