Добрый день, Коллеги. Важное сообщение, просьба принять участие. Музей Ферсмана ищет помощь для реставрационных работ в помещении. Подробности по ссылке
The proceedings of ICADD-10 is a collection of 56 technical papers, including 8 keynotes, accepted by the conference. ICADD-10 is the 10th event of the series since 1995. The conference series have been organised every 2–3 years focusing initially on the discontinuous deformation analysis method and gradually covering the discontinuous numerical methods and coupling techniques with other numerical approaches, for geomechanics and geoengineering.
This welcome volume is a collection of articles principally adapted from articles published in the Philosophical Transactions triennial issue. It very largely reflects the views of younger scientists, and highlights how the Earth Sciences continue to delight us with new ideas and controversies. Many of the authors are research fellows, or former research fellows, of the Royal Society, and the editors have successfully assembled an entertainingly eclectic mix. The book is divided into three sections covering Environmental Change, the Dynamics of the Earth, and Applied Earth Science, and the topics range from costing climate change, to the properties of the Earth’s core and objectively optimised Earth observation
This paper focuses on the relationships between the geological model and exploration techniques for porphyry Cu ± Au deposits, with reference to the discovery record and exploration practices over the past fifteen years. The porphyry model is built on a long record of study dating back to the 1960s which has been gradually refined to encompass differences and complexities in mineralization and hydrothermal alteration assemblages resulting from varying intrusion (‘porphyry’) chemistries, differing wallrock geochemical and structural controls, the upwards zonation into the lithocap environment, and the overprinting effects of deep weathering.
This textbook aims to explain the physics behind seismic ground motion and seismic waves for graduate and late undergraduate students or professionals. Both seismic ground motions and seismic waves are terms used for the “shaking” produced by earthquakes. However, in some instances, the shaking in the near-field of an earthquake source may be referred to as seismic ground motion, whereas shaking in the far-field may be referred to as seismic waves. The title “Ground Motion Seismology” indicates that this work explains in detail the equations and methods used for analyses and computations of shaking near an earthquake source. The textbook also details topics related to teleseismic body waves, which are frequently used in the analyses of earthquake sources. <...>
Proceedings Of The 3rd International Conference On Geology, Resources Exploration And Development (Icgred 2022), Harbin, China, 21-23 January 2022
Материалы 3-й Международной Конференции по геологии, разведке и разработке природных ресурсов (Icgred 2022), Харбин, Китай, 21-23 Января 2022 Г.
Advances in Geology and Resources Exploration provides a collection of papers resulting from the conference on Geology and Resources Exploration (ICGRED 2022), Harbin, China, 21–23 January, 2022. The primary goal of the conference is to promote research and developmental activities in geology, resources exploration and development, and another goal is to promote scientific information interchange between scholars from the top universities, business associations, research centers and high-tech enterprises working all around the world.
The gold-processing industry is experiencing change. As free-milling and oxide ores become depleted, more complex polymetallic and refractory ores are being processed, coupled with increasing pressure for stricter environmental compliance. Recent years have also seen a steady reduction in mineral processing and metallurgy graduates and a gradual loss of older operating experience. A contribution to documenting current and future best practice <...>
This paper presents a brief overview of some IRGIREDMET advances in gold hydrometallurgy. Original impulse-percolation technology and equipment for intensive cyanidation of gravity concentrates have been developed and introduced into industrial practice by IRGIREDMET since 1980s (RF Patents N1593250). The process is based on leaching using special hydrodynamic and reagent conditions providing high dissolution rate for coarse gold particles. Gold and silver are precipitated from pregnant solution by cementation or electrowinning. There was also proposed an improved cementation method using zinc in a contact with electrically conductive material.
High-pressure mineral physics is a field that is strongly driven by the development of new technology. Fifty years ago, when experimentally achievable pressures were limited to just 25 GPa, little was known about the mineralogy of the Earth’s lower mantle. Silicate perovskite, the likely dominant mineral of the deep Earth, was identified only when the high-pressure techniques broke the pressure barrier of 25 GPa in the 1970s. However, as the maximum achievable pressure reached beyond 1 Megabar (100 GPa) and even to the pressure of Earth’s core on minute samples, new discoveries were increasingly fostered by the development of new analytical techniques and improvements in sensitivity and precision of existing techniques.
This Special Publication deals with some of the themes treated during the XVI Deformation Rheology and Tectonics Conference, held in Milano on 27–29 September 2007, and analysed in depth during the workshop, held in Oropa-Biella on 29 September–2 October 2007. A preconference excursion was held on the Monviso metaophiolites and Dora–Maira UHP continental crust (23–26 September 2007).
In this book we decided to attach the permil sign (‰) to all Li isotopic quantities. One way of viewing stable isotopes denoted by δ is that the arithmetic sets the results as being part-per-thousand quantities, so to place the ‰ on a value is redundant. However, this implies a certain familiarity from the reader. Our decision regarding the ‰ in this volume was guided by the potential that the audience may include those not so steeped in the thinking of stable isotopes. This calls to mind a historical note regarding Li isotopes. Readers of the early literature on the subject (beginning with Chan in 1987) will find papers that use δ6Li. Prior to 2000, using the now-accepted δ7Li notation was viewed as an unwanted usurpation by at least one prominent geochemist. Nevertheless, being clear is important, and although δ7Li was not the first notation employed, it follows stable isotope convention. We find that students have a hard enough time understanding isotope geochemistry, so to oppose the notation used in virtually all systems (positive values are isotopically heavier than negative values) invites confusion. Hence, our use of the ‰ is a further step to make this compilation clear for all.
