The Caledonian orogenic belt of northern Britain hosts some significant quartz vein-hosted gold deposits. However, as in orogenic belts worldwide, the relationship between gold mineralization and regional tectonics, magmatism, and metamorphism is a matter of debate. This is primarily due to the absence of precise temporal constraints for the mineralization. Here we report high-precision 40Ar/39...

The Chah-Bagh gold occurrence is located in Muteh mining district, in the central part of the Sanandaj-Sirjan zone. Gold mineralization occurs in ductile to ductile-brittle shear zones and is comparable with orogenic gold deposits. Silicification and sulfidization are the most important hydrothermal alteration features in the inner parts of altered shear zones and coincide most closely with the...

The so-called ‘mesothermal’ gold deposits are associated with regionally metamorphosed terranes of all ages. Ores were formed during compressional to transpressional deformation processes at convergent plate margins in accretionary and collisional orogens. In both types of orogen, hydrated marine sedimentary and volcanic rocks have been added to continental margins during tens to some 100 milli...

The Western Qinling orogenic belt (WQOB) is one of the most important prospective gold districts in China, with widely distributed Indosinian intermediate–acidic intrusions. Liziyuan Au deposit a representative northern WQOB, hosting several sections spatially associated igneous rocks. hosted by meta-sedimentary volcanic rocks Cambrian–Ordovician Group and Tianzishan monzogranite. Two periods, ...

The Wulonggou Gold Field is one of the giant gold fields in East Kunlun Orogenic Belt, northwestern China. Previous studies mainly focused on elementary mineral isotopic studies, fluid inclusions, and geological features Field. In this study, we report some research precise age specific ore-forming process WGF: hydrothermal monazite U–Pb ages; way precipitation; composition, evolution, source f...

Modern methods of nanomineralogy (electron microscopy, electron probe microanalysis) were used to study the ores one largest industrial facilities Uzbekistan - Zarmitan gold zone, which includes Zarmitan, Urtalik, Guzhumsay deposits, are located in Koshrabadgranosyenite massif. The development / Au-W Au-Bi-Te Au-As Au-Ag-Te Au-Ag-Se Au-Sb-Ag Au-Hg types ores. Productive mineral-geochemical gold...

In gold-endowed greenstone belts, ore bodies generally correspond to orogenic gold systems (OGS) formed during the main deformation stage that led craton stabilization (syntectonic period). Most OGS deposits postdate and locally overprint magmatic-hydrothermal systems, such as Au-Cu porphyry mostly magmatic (synvolcanic period) polymetallic intrusion-related (IRGS) of syntectonic period. Porphy...

The central Keraf suture recorded complex lithospheric-scale deformation associated with the formation of Neoproterozoic Arabian-Nubian shield and hosts WG03, Central Zone UTM gold deposits, Gabgaba district, NE Sudan. This study aims at (i) unravelling tectonic history by (ii) interpreting spatial genetic relationships between structural setting mineralization. To this end, we coupled field pe...