Добрый день, Коллеги. Важное сообщение, просьба принять участие. Музей Ферсмана ищет помощь для реставрационных работ в помещении. Подробности по ссылке
Clay, noun. Old English Cladg. A stiff viscous earth. (Blackies Compact Etymological Dictionary. Blackie & Son, London and Glasgow. 1946. War Economy Standard) Clay: The original Indo-European word was 'gloi-" "gli-' from which came "glue' and 'gluten'. In Germanic this became 'klai-; and the Old English 'claeg" became Modern English "clay'. From the same source came "clammy' and the northern England dialect "claggy' all of which describe a similar sticky consistency. (Oxford English Dictionary and Ayto's Dictionary of Word Origins, Bloomsbury, 1999) Clay." from Old Greek yRia, y2oia "'glue" 72ivfl "slime, mucus "" y2oidq "'anything sticky" 'from L-E. base *glei-, *gli- 'to glue, paste stick together. (Klein E. A comprehensive etymological dictionary of the English language. Elsevier, Amsterdam, 1967; Skeat W. An etymological dictionary of the English language.
Oxford University Press, 1961; Mann S.E. An Indo-European comparative dictionary. Buske Verlag, Hamburg, 1987) <...>
This paper is a guide to the X-ray examination of clay minerals; it incorporates background information concerning the principal crystallographic features of clay minerals, and how this is used in the X-ray identification of these minerals, together with laboratory techniques and the application of X-ray diffractometry to the diagnosis of the clay minerals in natural sedimentary materials. <...>
: This paper presents that in expansive clays containing montmorillonites the generalized water flow equation can be described regarding a solid volume as a reference. The water retention curves are derived by calculating both volumetric water content and the chemical potential of water in a stacking model of the 2:l layer. It is pointed out that molecular dynamics simulation is useful to analyze the characteristics of water retention curves, and that a homogenization analysis also is useful to solve the flow problems in an inhomogeneous porous body <...>
The researches resulting in this massive book have been initiated by S. Vacaru fifteen years ago when he prepared a second Ph. Thesis in Mathematical Physics. Studying Finsler–Lagrange geometries he became aware of the potential applications of these geometries in exploring nonlinear aspects and nontrivial symmetries arising in various models of gravity, classical and quantum field theory and geometric mechanics. <...>
There is a general consensus that climate change is an ongoing phenomenon. This will inevitably bring about numerous environmental problems, including alterations to the hydrological cycle, which is already heavily influenced by anthropogenic activity. The available climate scenarios indicate areas where rainfall may increase or diminish, but the final outcome with respect to man and environment will, generally, be detrimental. Groundwater will be vital to alleviate some of the worst drought situations. The paper analyses the main methods for studying the relationships between climate change and groundwater, and presents the main areas in which hydrogeological research should focus in order to mitigate the likely impacts.
In recent years media attention has focused on global climate change and the impacts on the human experience that this may cause. This interest has stimulated earth scientists into a re-appraisal of the rates of change seen in the geological record and which, for years, had been taken for granted. Climatic modelling and other palaeoclimate assessments have reversed the geological adage that the 'present is the key to the past' into 'the past may be the key to the future'. This renewed interest was the driving force behind the European Palaeontological Association's Congress in Vienna <...>
This book discusses new insights concerning the influence of the climate upon the earth’s relief, in particular upon the continents. It has been found that this climatic, this exogenic influence is much stronger than any endogenous influence. Endogenous forces, as any geologic map will show, are distributed randomly over the entire earth, while the exogenic influence of climate follows strict rules in its distribution from the pole to the equator, both today as in the past. Their distribution and intensity make climatic influences the best basis upon which to found a system of geomorphology, such as the one presented here.
Climatic Geomorphology constitutes a new look at a fairly old subject that has been largely ignored in other more recent trends in the field, particularly in much process geomorphology. But now Mateo Guti6rrez, well-known Professor of Geomorphology at the University of Zaragoza in northeast Spain, has presented us with this new volume, translated into English by ten of his colleagues.
The present reports pretends to show the evolution and closure of Mina Angela, a Au-Ag–Cu–Pb-Zn mine, located in the Chubut Province (Argentina). The description will be done in chronological way, as there are several dates that are very important, especially from the legal point of view. <...>
This volume comprises the invited keynote papers given at the International Symposium on Coal and Coal-bearing Strata held at Royal Holloway and Bedford New College (University of London) from April 8th to 10th 1986. The authors were asked to consider progress in their field over the past 15 years in particular. Some additional contributions were solicited to fill gaps in the coverage. In this volume I have tried to put together a balanced view of the field and where possible asked the authors to use a similar terminology and to make reference to other contributions in the volume. Other contributions at the conference have been published in the Journal of the Geological Society of London. It is hoped that this volume will not only be of interest to researchers but also to lecturers and students alike. I thank the Geological Society of London, the Geology Department of Royal Holloway and Bedford New College and British Coal for financial help for organizing the conference. I thank Professor A. J. Smith and Miss S. Clay for their support. Finally I thank all the authors for their presentations at the conference and all the referees who undertook the task of reviewing the papers.
