Mita is a moderate temperature geothermal system that was discovered in 1997 during gold exploration in south-eastern Guatemala. This system is associated with bimodal basaltrhyolite volcanism, and occurs alongside (and overlapping with) the Cerro Blanco 2 million ounce epithermal gold deposit. Four 1000-1500m deep slim holes were drilled in 2008-09 to confirm the nature of the deep reservoir. ...

At the orogenic gold deposits of Yana–Kolyma metallogenic belt (northeast Russia) both Au–quartz-sulfide mineralization with native and disseminated sulfide invisible Au developed. The textural mineralogical-geochemical features, isotope-geochemical characteristics gold-bearing sulfides from proximal metasomatites, possible forms occurrence in pyrite arsenopyrite have been studied using electro...

The Muteh gold deposit (NE of Golpaygan) in the central part of intrusive-metamorphic belt of Sanandaj-Sirjan zone comprises NW-SE trending gold-quartz vein occurred in metamorphic complex. Gold mineralization is associated with quartz veins that formed during regional deformation across the mylonitic zones in metamorphic rocks of predominantly meta-volcanic, gneiss and schist. The sulfidation ...

The Vancouver Composite Index fell by over 25% in less than six weeks during spring 1997 as the junior mining sector collapsed. We argue that this market collapse was triggered by the failure of Bre-X Minerals when that company’s Indonesian claims, previously believed to contain the world’s largest gold deposit, were shown to be pure fraud. Our event study, based on market returns for the Vanco...

The Baranyevskoe Au-Ag epithermal deposit of low-sulfidation (LS) type is located on the Kamchatka Peninsula in Neogene-Quaternary Central Volcanic Belt, where Au-bearing quartz veins are usually accompanied by veinlet stockworks. Two economic associations typical deposit. first corresponds to gold-pyrite-quartz association with low-grade native gold (521–738‱) intergrown pyrite. Some accessory...

Pampaloite AuSbTe, a rare gold-antimony telluride that was first described in 2019 from the Pampalo gold mine, Finland, found samples large Svetlinsk gold-telluride deposit, South Urals, Russia. Optical microscopy, scanning electron microprobe analysis, reflectance measurements, backscatter diffraction and Raman spectroscopy were used to study eight grains of pampaloite. forms inclusions (5–30 ...

DOI: 10.17014/ijog.8.1.73-99 Laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) and electron microprobe analysis (EMPA) techniques were used to determine the mineralogy chemistry of dominant sulphide associated gold deposits at Fairview Gold Mine Barberton Greenstone Belt (BGB). The rocks ore mineral associations indicate mesothermal (orogenic) conditions for deposit. whole...

Gold is the preferred material for conductive structures in neural implants. The hitherto employed process applies adhesive layers to avoid delamination of gold from a polymeric substrate. possibility deposit without use offered by high-power impulse magnetron sputtering (HIPIMS) process. In this work, it shown that possible utilize HIPIMS onto polyimide while having enough adhesion between the...

The Ulu Sokor gold deposit is classified as orogenic type with evidence from previous studies on the structural, mineralogical, alteration, fluid inclusion, and stable isotope data. This study focuses mineralogy geochemical analysis of representative ore rock samples southern part deposits. project area situated at North Kelantan state which lies Central Belt Peninsular Malaysia. main objective...