Добрый день, Коллеги. Важное сообщение, просьба принять участие. Музей Ферсмана ищет помощь для реставрационных работ в помещении. Подробности по ссылке
Discoveries of new types of marine mineral occurrences during the last decade, and specifically the massive sulfide deposits at spreading ridges on the ocean floor, have significantly advanced geologic concepts about the origin of ore deposits in a very short period of time. These discoveries also renewed interest in all marine mineral occurrences including the well-known manganese nodules, and led to more wide-ranging and thorough examination of cobalt-rich manganese crusts, expanded mapping of phosphorites of continental shelves, and the initiation of several new surveys for placer minerals in shallow waters. The result of these activities is already noticeable in an increasingly broader variety of minerals being found on and below the ocean floor. <...> Report of the working group on placer minerals
Report of the working group on marine phosphorites
Report of the working group on manganese nodules and crusts
Report of the working group on marine sulfides
Sedimentary models to estimate the heavy-mineral potential of shelf sediments
Exploring the offshore area of N.E. Greece for placer deposits
The development of techniques for marine geological surveys
Model of Tertiary phosphorites on the world's continental margins
Open-ocean phosphorites: In a class by themselves?
Some mineral resources of the West African continental shelves related to Holocene shorelines: Phosphorite (Gabon, Congo), glauconite (Congo) and ilmenite (Senegal, Mauritania)
Exploration and genesis of submarine phosphorite deposits from the Chatham Rise, New Zealand: A review
Controls on the nature and distribution of manganese nodules in the western Equatorial Pacific Ocean
Growth history and variability of manganese nodules of the Equatorial North Pacific
Chemistry and growth history of central Pacific Mn-crusts and their economic importance
Geochemical methods in manganese nodule exploration
Analysis and metallurgy of manganese nodules and crusts
Nodule exploration: Accomplishments, needs and problems
Deep-ocean near-bottom surveying techniques
Seafloor polymetallic sulfides: Scientific curiosities or mines of the future?
Sulfide deposits of the seafloor: Geological models and resource perspectives based on studies in ophiolite sequencesRecent hydrothermal metal accumulation, products, and condi tions of formation
The chemistry of submarine oTrace element and precious metal concentrations in East Pacific Rise, Cyprus and Red Sea submarine sulfide depositsre-forming solutions
Possibility of mineral enrichment in the Black Sea
Seafloor volcanism and polymetallic sulfide deposits in ancient active margins: The case of the Iberian pyrite belt
Scientific rationale for establishing long-term ocean bottom observatory/laboratory systems
Electrical methods in the exploration of seafloor mineral deposits
Sources of confusion: What ~re marine mineral resources?
Thoughts on appraising marine mineral resources
Estimation of the probability of occurrence of polymetallic massive sulfide deposits on the ocean floor
Resource assessments, geological deposit models and offshore minerals with an example of heavy-mineral sands
Aspects of marine placer minerals: Economic potential of coastal deposits in Italy, testing procedures and market condi tions
Geostatistical problems in marine placer exploration
Geostatistical reserve modeling and mining simulation of the Atlantis II Deep's metalliferous sediments
An investigation of the applicability of trend surface analysis to marine exploration geochemistry
Тимофеев Я.Я., Боголюбова Л.И., Кизилыитейн Л.Я. Сульфидообразование в области современного торфонакопления Рионского межгорного прогиба. Сообщение 1. Закономерности процессов сульфидообразования в торфяниках прибрежно-континентальной полосы Колхиды Осипенко А.Б., Егоров Ю.О., Фазлуллин С.М., Гавриленко Г.М., Шулькин В.И., Черткова Л.В. Современная подводная гидротермальная деятельность в зоне Таупо-Роторуа (залив Пленти, Новая Зеландия) Дмитриев Ю.И., Горшков А.И., Дмитриева М.Т., Березовская В.В., Долинина Ю.В., Каленчук Г.Е., Муравицкая Г.Н. Химизм базальтов, Fe — Mn-конкреций и корок с подводных гор северо-западной части Тихого океана Бебешев И.И. История развития Тянь-Шаня в юре
Although (Soddy, Nature 92:399–400, 1913) inferred the existence of isotopes early last century, it was not until the discovery of the neutron by (Chadwick, Nature 129:312, 1932) that isotopes were understood to result from differing numbers of neutrons in atomic nuclei. (Urey, J Chem Soc 1947:562–581, 1947) predicted that different isotopes would behave slightly differently in chemical (and physical) reactions due to mass differences, leading to the concept of isotopic fractionation.
Тимофеев П.П., Троицкий В.И. Фациальные и формационные исследования — основа системного анализа уровней организации осадочных образований (к теории формационного анализа) Михайлов Б.М., Басков Е.А., Горбачев Б.Ф., Долгополов В.Ф. Генетические группы рудоносных экзогенных формаций Ковалевская И.С., Моргун Б.Г., Рысков Я.Г.,^Самойлова В.М. |Геохимические закономерности формирования минералов крупной фракции почв сопряженных ландшафтов Центрального Предкавказья Недумов Р.И. Проблемы литологии, геохимии и палеогеографии кайнозойских отложений Предкавказья. Сообщение 1. О связи условий формирования с литологией и геохимией майкопских отложений Махнач А.А., Гулис Д.Ф. Желваковые кремни в карбонатных отложениях девона и мела Беларуси. Сообщение 3. Генезис
«Инструкция по составлению проекта разработки месторождения твердых полезных ископаемых» может служит нормативным документом при составлении проектной документации для разработки месторождений твердых полезных ископаемых подземным, открытым, геотехнологическим или комбинированным т.е. последовательным сочетанием подземного и наземного, способами.
Many Third World and developing countries rely mainly on the utilisation of their natural resources to sustain their economic development. In the Philippines in particular, the exploitation of mineral resources has traditionally been a significant component of the Philippine economy (Domingo, 1993).
Modelling and prediction of spatially distributed data such as the secondary cassiterite mineral distributions are often affected by spatial autocorrelation (SAC); a phenomenon that violates attributes data independence in space, which leads to type1 errors in classical statistics and overfitting or underfitting in machine learning (ML) classification respectively. The concept of overfitting and underfitting of spatially distributed datasets in an ML classification has not been properly addressed by the traditional random holdout technique of model validation, and this is a challenge to the assessment of predictive spatial model performance in spatially distributed datasets.
Kaolin is a commercial term used to describe white clay composed essentially of kaolinite, Al&010(OH)g. The term is typically used to refer to both the raw clay and the refined commercial product. This manual describes the laboratory assessment of ‘non-plastic’ kaolin (sometimes known as china clay); plastic kaolinitic clays (or ball clay) are dealt with elsewhere in this series of manuals. Although originally valued for use in the manufacture of whiteware ceramics, the principal use of kaolin is now in the filling and coating of paper. The mineral is also used to a lesser extent as a filler in paint, rubber and plastics, as well as in a wide range of other applications. Kaolins are distinguished from other clays by whiteness, and fine, controllable particle size. It is generally necessary to process kaolin from the crude state in order to optimise these highly commercial properties <...>
Рассмотрены основные строительные изделия, материалы и конструкции, применяемые для индивидуального строительства. Приведены основные свойства этих изделий и материалов и эффективная область их применения. Дана информация по ассортименту выпускаемых для реализации населению материалов и изделий по их стоимости, взаимозаменяемости и адресам торгующих организаций. Для широкого круга читателей.
Дан комплексный геолого-экономический анализ наиболее важных особенностей формирования минерально-сырьевой базы Африканского континента на современном этапе с учетом ретроспективных (с конца XIX в.) и перспективных (до 2010 г.) тенденций. Рассмотрена геолого-экономическая отраслевая характеристика различных видов твердых полезных ископаемых, учтена роль африканского минерального сырья в мировом капиталистическом хозяйстве и в индустриализации развивающихся стран континента. Для специалистов, занимающихся экономикой минерального сырья за рубежом.
