Ведущим промышленным типом коренного золота в Мире являются мезотермальные орогенные месторождения раннедокембрийских кратонов. Разные по масштабам, включая крупные и уникальные, месторождения этого типа детально изучены и эксплуатируются во многих архейских гранитзеленокаменных областях (ГЗО) (Groves et al., 2003). Исключением является Карельская ГЗО (Балтийский щит), на территории которой на сегодня известны лишь несколько небольших месторождений и рудопроявлений золота. В чем же специфика Карельской области, делающая её исключением среди других архейских ГЗО с крупномасштабным золотым оруденением?

The Kupol epithermal Au-Ag vein district is located in the northern part of the Okhotsk-Chukotka volcanic belt, a Late Cretaceous subduction-related continental volcanic arc exposed for >3,000 km along the eastern coast of Russia. High-grade veins are hosted in the Kupol andesite sequence, a 300- to 1,000-m-thick, subhorizontal, layered sequence of andesite flows, sills, and ash tuffs, dated at 97 to 96 Ma (Cenomanian). The Kupol andesite sequence is underlain by mixed mafic-felsic volcanic units plus sedimentary rocks (“older volcanics”) and overlain by a >1-km-thick “upper felsic” sequence of dacitic-rhyolitic tuffs and associated dikes and flow domes, dated at 95 to 85 Ma, with local sequences of fluvio-lacustrine sedimentary rocks.

Комплексный геологоразведочный подход к составлению карты залежей золота в железистой формации в зеленокаменном поясе Рио-дас-Вельяс, Гвадрилатеро-Ферриферо, Бразилия

A statistical modeling approach was applied to airborne geophysical data to locate areas favorable for gold mineralization in Rio das Velhas Greenstone Belt, Quadrilátero Ferrífero (QF).

Изучение золотоносных и сереброносных объектов в Cu-Мо-порфировых металлогенических поясах, формировавшихся на палеоостроводужных основаниях, способствует решению таких важных научных проблем, как общая и региональная металлогения золота, пространственно-временные связи благороднометалльной минерализации с медно-порфировыми системами, ее специфические минералогические особенности.

This paper address the question of why giant gold deposits are so unevenly spread over the continents, what processes control their distribution, and how more might be found? Using the source-migration-trap paradigm, it is proposed that the regional distribution of gold deposits is controlled by fluid access to gold sources on a regional scale, and by large-scale migration mechanisms.

Показатели продуктивности порфировых месторождений Cu-Au+Pd±Pt: данные из Скуриса, полуостров Халкидики, Греция, и сравнение с мировыми минерализациями

: The research interest for many authors has been focused on the origin, recovery, and exploration of critical metals, including platinum-group elements (PGEs), with the aim of finding new potential sources. Many giant porphyry Cu deposits are well known around the Pacific Rim, in the Balkan–Carpathian system, Himalayas, China, and Malaysia. However, only certain porphyry Cu-Au deposits are characterized by the presence of significant Pd and Pt contents (up to 20 ppm).

Simplified definition Quartz and carbonate veins with valuable amounts of gold and silver, in faults and shear zones located within deformed terrains of ancient to recent orogenic  reenstone belts. Scientific definition Greenstone-hosted quartz-carbonate vein deposits (GQC) are a sub-type of lode gold deposits (Poulsen et al., 2000) (Fig. 1). They are also known as mesothermal, orogenic (mesozonal and hypozonal - the near surface orogenic epizonal Au-Sb-Hg deposits (Groves et al., 1998) are not included in this synthesis), lode gold, shear-zone-related quartz-carbonate or gold-only deposits (Roberts, 1987; Colvine, 1989; Kerrich and Wyman, 1990; Robert, 1990; Kerrich and Feng, 1992; Hodgson, 1993, Kerrich and Cassidy, 1994; Robert, 1995; Groves et al., 1998; Hagemann and Cassidy, 2000; Kerrich et al., 2000; Goldfarb et al., 2001; Groves et al., 2003; Goldfarb et al., in press; and references therein).

The Tropicana-Havana gold deposit is hosted by Archaean rocks that lie along the eastern margin of the Yilgarn Craton, Western Australia. The Mineral Resource for the project is 75.3 million tonnes grading 2.07 g/t for 5.01 Moz of gold. Gold mineralisation postdates peak granulite-facies metamorphism and formed from variably oxidised, higher temperature (>350˚C), silica-undersaturated fluids.

Intrusion-related gold systems (IRGS) are a newly-defined (1999) deposit classification (based mainly on well-studied deposits in Alaska and Yukon) that is already mired in confusion, nomenclature uncertainty and misapplication. Increasingly, gold deposits are mis-assigned an IRGS classification because: 1) the nomenclature of intrusion-related gold models has been rapidly evolving; 2) the characteristics of the classification are broadly defined to include a wide range of deposit types that overlap with other gold deposit types; and 3) granitoid intrusions are common features of orogenic belts and are an obvious fluid source for any proximal gold occurrence.