Добрый день, Коллеги. Важное сообщение, просьба принять участие. Музей Ферсмана ищет помощь для реставрационных работ в помещении. Подробности по ссылке
Underground construction contributes uniquely to the sustainable development of new subsurface space for public and infrastructure use. Improving the world beneath us means improving the world that lies above us. The nature of today’s projects and future challenges demand that the boundaries of technical limitations are pushed back wherever they exist. To prevail over them, continuous advances in equipment design, product technologies, working processes and design engineering are required to expand horizons underground. <...>
Estimating mineral resources from drill hole data is an activity that is fraught with difficulty. Most classical statisticians would regard the data for any ore reserve estimate as dangerously inadequate. This would often apply even in cases where the geologist felt that the deposit had been "overdrilled". <...>
Stable isotope investigations in the earth sciences continue to grow, maybe faster than ever before. After publication of the 5th edition, tremendous progress has been achieved in many subfields of stable isotope geochemistry. To name a few:
– Applications of Multicollector - ICP-MS has grown rapidly and now enable investigations on natural isotope variations of a wide range of transition and heavy elements that could not previously be measured with adequate precision.
The scientific editors of this volume, John Valley and David Cole, organized a Short Course on Stable Isotope Geochemistry presented November 2-4 2001 in conjunction with the annual meetings of the Geological Society of America in Boston, Massachusetts. The contributors to this review volume were the instructors. The Mineralogical Society of America (MSA) sponsored the course and is published and distributor of this and other books in the Review in Mineralogy and Geochemistry series. Alex Speer, Executive Director of MSA, and Myrna Byer, of Printing Service Associates, Inc., are acknowledged for their considerable contributions to the success of this volume <...>
This volume on the stable isotope geochemistry of high temperature geologic processes is respectfully dedicated to Samuel Epstein, Professor of Geochemistry at the California Institute of Technology for the past 30 years. Although the topics of this volume encompass only a small range of the applications of stable isotope geocemistry to which Sam has been a major contributor, this sub-field was to a large degree originated by Sam and his first Ph.D. student, Bob Clayton, in the middle 1950's when they made their pioneering studies of oxygen isotope geochemistry and geothermometry of coexisting minerals in igneous and metamorphic rocks and ore deposits. <...>
First, we would like to introduce an addition to the editorial team that is responsible for organizing each of the new editions of the Standard Handbook of Petroleum and Natural Gas Engineering. Stemming from an original publication called Practical Petroleum Engineer’s Handbook first published in the 1940s, the first edition of this handbook was published in 1996 after nearly 8 years of initial preparation by the handbook’s first technical editorWilliam (Bill) Lyons.
A requirement in geostatistical modeling is to find an appropriate and stable variogram. The traditional variogram is sensitive to outliers and sparse data. A number of robust alternatives have been proposed. Although the correlogram, indicator variogram and normal scores variograms sometimes work, the pairwise relative variogram is a remarkably robust estimator of the true underlying spatial structure. The variogram is adjusted by the squared mean of each data pair. A challenge in the interpretation of the pairwise relative variogram is that the sill of the pairwise relative variogram has not been well documented. The goal of this paper is to understand the sill of the pairwise relative variogram in order to standardize it for improved interpretation. <...>
Стандарты и рекомендации по оценке свойств полезных ископаемых. Специальный комитет Канадского института горного дела, металлургии и нефти по оценке свойств полезных ископаемых
High-pressure mineral physics is a field that has shaped our understanding of deep planetary interiors and revealed new material phenomena occurring at extreme conditions. Comprised of 16 chapters written by well-established experts, this book covers recent advances in static and dynamic compression techniques and enhanced diagnostic capabilities, including synchrotron X-ray and neutron diffraction, spectroscopic measurements, in situ X-ray diffraction under dynamic loading, and multigrain crystallography at megabar pressures. Applications range from measuring equations of state, elasticity, and deformation of materials at high pressure, to synthesis and thermochemistry of high-pressure phases, and new molecular compounds and superconductivity under extreme conditions. This book also introduces experimental geochemistry in the laser-heated diamond anvil cell enabled by the focused ion beam technique for sample recovery and quantitative chemical analysis at submicron scale. Each chapter ends with an insightful perspective of future directions, making it an invaluable resource for graduate students and researchers. <...>
