Epithermal ore deposits form at shallow depth. This conclusion was initially based on geologic reconstructions, ore mineralogy and related textures (Lindgren, 1933). It has subsequently been refined withfluid inclusion data to indicate that epithermal ores form over the temperature range of <150o C to ~300o C, from the surface to as deep as 1 to 2 km. Here we highlight the general characteristics of the two principal styles of epithermal mineralization in which gold is the dominant economic metal. We base our generalizations on observations of many deposits and prospects in the circum-Pacific region. Distinguishing between the two styles is crucial for effective exploration. Although they show similar alteration mineralogies, the distribution of the alteration zones is different, and the economic mineralization is associated with different parts of the system. The alteration zoning can be used as a pointer towards the most prospective part of the system, but only when the style has been correctly recognized. In addition, the two styles of mineralization have differences in their geochemical associations. <...>

It is a daunting task for any geologist to understand gold genesis and to find exploration guidelines in the enormous volume of literature. From the perspective of the exploration geologist, this is worth tackling because there is still a large dichotomy when it comes to their genesis, epigenetic-structural aspects and syngenetic concepts. While the targets will not change with the model (Colvine et al., 1984), a better overall understanding will clearly aid target selection and exploration techniques <...>

Since publication of the previous volume in the "Hydrothermal Iron Oxide Copper-Gold and Related Deposits: A Global Perspective" series in 2002, there have been significant advances in the understanding of iron oxide copper-gold (IOCG) deposits, as well as a number of new discoveries. This two volume set includes 26 new papers, with over 100 colour plans and individual images, reporting, reviewing and discussing the current appreciation of the occurrence of this style of mineralisation, what constitutes IOCG-type ores, and new insights into established deposits and their geological setting.

Современный этап развития геологии полезных ископаемых характеризуется усиленным вниманием к исследованию неметаллических полезных ископаемых, роль которых в обеспечении промышленности минеральным сырьем неуклонно растет.

К 25-летию журнала «Литология и полезные ископаемые» (1963—1988)
Баренцев И.М., Путилина В.С., Зайцева В. Изучение механизма формирования железомарганцевых конкреций и корок в современных бассейнах. Сообщение 1. Эксперименты по синтезу гидроокисных соединений Fe, Ni, Cu, Со на гидроокислах марганца   
Бутузова Г.Ю., Горшков А.И., Дриц В.А., Морозов А.А., Сивцов А.В. Минералогия и процессы формирования окисных форм железа и марганца в рифтовой зоне Красного моря. Сообщение 1. Минеральный состав рудного вещества

Metal mining operations, in particular gold mining operations, use intensive ore control procedures in order to manage the extraction of ore zones from benches containing both ore and waste material. Typical grade control procedures rely on blast hole samples to indicate ore grade. Statistical techniques and geological controls are then used to create two-dimensional polygons, which indicate zones of material designated as ore. These ore-polygons are calculated using preblast material locations and are generally not corrected for rock movement caused by blasting.

Бойко Т.Ф., Лисицына Н.А., Бутузова Г.Ю. Редкоземельные элементы и ли-толого-фациальная зональность океанских осадков (транстихоокеанский профиль). Сообщение 1. Зональность распределения редкоземельных элементов в осадках
Харин Г.С. Роль океанского магматизма в седиментогенезе (на примере Атлантики и Норвежско-Гренландского бассейна)    
Сколотнев С.Г., Карпова Г.В., Покровская Е.В. Вторичные минералы склоновых отложений подводных Магеллановых гор (Тихий океан)

Свальное В.Н., Беляева Н.В., Дмитренко О.Б., Новикова 3.Т., Успенская Т.Ю., Шевченко А.Я. Эдафогенный материал в осадках северной тропической зоны Атлантики

Effectiveness of ore grade control at operating mines depends on both the quality and quantity of the samples used. Therefore, optimisation of grade control procedures requires analysis of sample quality and their spatial distribution. This approach, implying quantitative estimation of both these factors and quantification of their contribution to the grade control errors, was used for comparing two different grade control procedures at the Yandicoogina (Yandi) iron-ore open pit mine, located in the eastern part of the Pilbara region of Western Australia. At Yandi, pisolitic iron oxide mineralisation is distributed within a meandering palaeoriver channel, characterised by abundant clay pods that contain the deleterious components; in particular Al2O3 and SiO2.