Добрый день, Коллеги. Важное сообщение, просьба принять участие. Музей Ферсмана ищет помощь для реставрационных работ в помещении. Подробности по ссылке
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.
Cost indexes provide a mechanism for adjusting outdated cost information and for tracking cost inflation in the mining industry. Table 1 lists a variety of indexes for specific mining cost centers and provides some guidance for their use. Table 2 lists current and historical values for the indexes. Table 3 lists U.S. Producer Price Indexes and Consumer Price Indexes. These are generally recognized as reliable measures of general inflation in the U.S. economy, and they serve as a comparison to the inflation experienced by the mining industry <...>
Since early in history, mankind has drawn on the earth’s resources of energy to satisfy a variety of needs in daily life. The majority of this energy has traditionally been drawn from the world’s supplies of fossil fuels (coal and petroleum) and, despite developments ш nuclear technology or solar power, this trend is likely to continue well into the forseeabk Future. The mining of coal is an essential component in rhe economy of many countries, both to supply the needs of their own industries and, in some cases, the industries of others less welt endowed with energy resources as well. <...>
Coal is a type of solid-state combustible organic rock, which is transformed from plant remains by complex biochemistry, physical chemistry and geochemistry effects also known as the coal-forming process. Through deposition, coal eventually forms a seam within coal measure strata.
Coal is an important and required energy source for today’s world. Current rates of world coal consumption are projected to continue at approximately the same (or greater) levels well into the twenty-first century. This paper will provide an introduction to the concept of coal systems analysis and the accompanying volume of papers will provide examples of how coal systems analysis can be used to understand, characterize, and evaluate coal and coal gas resources. Coal systems analysis incorporates the various disciplines of coal geology to provide a complete characterization of the resource. The coal system is divided into four stages: (1) accumulation, (2) preservation-burial, (3) diagenesis-coalification, and (4) coal and hydrocarbon resources. These stages are briefly discussed and key references and examples of the application of coal systems analysis are provided.
This book arises from a two day international conference held at the Geological Society of London in November 1998. The meeting was organized with the purpose of bringing together sedimentologists, geomorphologists, archaeologists, environmental scientists and environmental managers to discuss recent research and topical issues relating to the interactions between natural processes, morphology and human activities in coastal and estuarine environments. More than 200 delegates, from 16 countries, attended the meeting over the course of the two days, stimulating lively discussion both about basic scientific issues and management implications. The meeting was sponsored by the British Sedimentological Research Group, the British Geomorphological Research Group, and English Heritage, and was also supported by the Environmental Sedimentology Committee of the International Association of Sedimentologists. The editors would like to thank these organizations, together with staff at the Geological Society and numerous daily helpers, especially postgraduate students and others from the University of Reading, for their generous assistance in making the meeting a great success
