Mineralization of Te and Se was found in gold deposits uranium occurrences, located the Paleoproterozoic greenstone belts Northern Fennoscandia. These are different genesis, but all them formed at late stages Svecofennian orogeny, they have common geochemical association metals Au, Cu, Co, U, Bi, Te, Se. The prevalent minerals Ni Fe tellurides melonite frohbergite, Pb telluride altaite. Bismuth...

Metamorphic processes play a key role in forming orogenic gold deposits. In this paper, we present new evidence that host schists of the two largest deposits Yenisey ridge (Russia) Olympiada and Eldorado underwent single stage metamorphism contrast to surrounding blocks. This is moderate thermal gradient belongs Barrovian type, which typical for collisional event time range 800–850 Ma. The Ar/A...

<p class="Authors">The volumes of world gold mining were reviewed. As a result the analysis, it was found that proportion placer is very insignificant. This due to fact most easily accessible reserves are substantially depleted, and development deposits with complex geological conditions, including those located in Far North, economically impractical. To solve this problem, method propose...

the gandy gold-base metal deposit is located in tertiary torud-chahshirin volcano-plutonic range, north of central iran. various styles of gold mineralization occur throughout the range. mineralization at gandy occurs in close spatial relation with rhyolitic domes in a caldera setting in a series of narrow brecciated veins. two mineralogically and spatially different argillic alterations have a...

The Eskay Creek gold-silver mine, located in northwest British Columbia, is an unusually high-grade ore deposit. The mining industry continues to spend more than $2 million each year on exploration for similar deposits in the area. The geologic setting at the minesite is well studied, but large tracts in north-central British Columbia require more detailed surveys to determine if favourable sit...

The Eskay Creek gold-silver mine, located in northwest British Columbia, is the highest-grade precious-metal volcanogenic massive sulphide deposit in the world. The mining industry continues to spend more than $2 million each year on exploration for similar deposits in the area. The geologic setting at the minesite is well studied, but large tracts in north-central British Columbia require more...

Gold has been found in the Cyprus-type volcanogenic massive sulfide ore (VMS) deposits of Corchia ophiolite (Parma province, Italy) in the Cantiere Donnini, Speranza and Pozzo mining sites. At Cantiere Donnini and Speranza, the mineralization occurs at the contact between pillow lava and sedimentary rocks. The Pozzo mineralization is hosted by a serpentinite. Concentrations of gold up to 3070 p...