About this Research Topic
The goal of this Research Topic, is to better understand the geological processes triggering transport and deposition of metals (Au, Ag, Sb, As, Hg … etc.) over space and time, main controls on ore and alteration mineral assemblages. The issues relating to structural geology, metamorphism, mineralogy and geochemistry in this context are summarized below.
• Detailed alteration mineralogy-petrography studies are critical to understanding many of the studied deposits which were complicated by the following tectonic and metamorphic overprint.
• More precise data need to contribute to the relative timing of gold deposition which is strongly dependent to the metamorphic and deformation history of the orogenic belt where orogenic gold deposits most commonly form perhaps 20 to 100 Ma after regional metamorphism.
• If exists the age, geochemistry and the origins of granitoids which act either as a source for ore-bearing magmatic hydrothermal fluids or as a heat source for remobilization of the earlier mineralization.
• Isotope geochemistry and integrated fluid inclusion studies focus on the mixing of fluids from different sources or later overprints to test the convenience of metamorphic models.
To be able to improve our understanding of the processes in the orogenic gold system being modelled by previous contributions, we welcome multidisciplinary research studies involving researchers from multiple geological disciplines. The manuscripts describing the mode of occurrence, ore petrography, structural geology, metamorphic petrology and geochemistry. The contributions that we are interested in range from detailed mineralogical analysis (For example, the correlation between fluid inclusions composition and Au mineralization in three dimension or the relationship between the gold and mineral paragenesis which representing reducing and oxidizing conditions) to regional scale synthesis (For example, mineralization and structural controls both in brittle and ductile deformation).
Keywords: gold deposits, orogenic belts, ore formation, mineralization
Important Note: All contributions to this Research Topic must be within the scope of the section and journal to which they are submitted, as defined in their mission statements. Frontiers reserves the right to guide an out-of-scope manuscript to a more suitable section or journal at any stage of peer review.