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Huge silver deposit discovered in Inner Mongolia

Andrew Topf | Jan. 7, 2018

Chinese media is reporting that a large deposit of silver has been found in the autonomous region of Inner Mongolia.

According to Xinhua, the state-owned news agency, the deposit contains over 100 million tonnes of silver ore. It wasn't clear from the media report whether that number refers to resources or reserves, but it must be resources, since Chinese silver reserves currently only stand at 39,000 tonnes, states the US Geological Survey. The deposit is located in Shuangjianzi Mountain in Inner Mongolia. Accurate mining statistics are notoriously difficult to pin down from China, which often inflates them.

The USGS puts China in fifth place in terms of silver production and reserves, behind the United States, Australia, Bolivia and Chile. The largest silver producer is Mexico, at 5,600 tonnes, and the country with the largest reserves is Peru, at 120,000 tonnes.

In 2015 Kitco pegged China as producing 128,603,000 ounces of silver, primarily as a byproduct of lead and zinc mining. The two primary silver mines are Canada-based Silvercorp's Ying mine, which produced 6.5 million ounces in 2017, and the Shizishan mine owned by China Polymetallic, which produced 2.4 million ounces in 2013 (current production numbers unavailable).

Maroc : la mine d’argent Zgounder entre en production commerciale



Agence Ecofin 11 janv 2019

La compagnie canadienne Maya Gold & Silver a annoncé cette semaine que sa mine d’argent Zgounder, située au Maroc, est entrée en phase de production commerciale. Cela fait suite à l’installation et à la mise en service d’une usine de flottation d’une capacité de 500 tonnes par jour sur le site du projet.

La société a indiqué qu’une phase de test a permis de traiter sur une période de 28 jours, un total de 4 622 tonnes de minerai à faible teneur avec une teneur moyenne de 157 g/t.

La récupération globale de l'argent par flottation, suivie d'une cyanuration du concentré de flottation, a atteint 80,3%, soit plus qu’espéré pour cette phase. L'usine de flottation a produit 321 tonnes de concentré à une teneur de 1 861 g/t d’argent.

«L’entrée en production commerciale de Zgounder, le projet phare de Maya, marque une autre étape importante alors que nous continuons à offrir croissance et valeur aux actionnaires.», a commenté le PDG, Nourreddine Mokaddem, précisant que le projet devrait commencer immédiatement par contribuer au flux de trésorerie de la société.

Selon une étude réalisée en 2018, la mine de Zgounder dispose de ressources suffisantes pour maintenir une exploitation minière pendant 10 ans, avec une production annuelle de 1,35 million d’onces d’argent.

High grades discovered at historic Gumsberg project in Sweden

MINING.com Staff Feb 3 2019

EMX Royalty, a royalty holder on the Gumsberg project in Sweden, announced this week that operator Boreal Metals (TSXV:BMX) discovered a high-grade zone of zinc-silver-lead-gold mineralization, named the South Zone, at the property.

In a press release, EMX explained that the South Zone occurs near the historic Östra Silvberg mine, and is currently delineated as 130 meters of eastward plunging mineralization that remains open for expansion to the east and at depth.

The firm also made public diamond drill results from the work that Boreal is carrying out at the 18,300-hectare Gumsberg site.


"The drill results include 11.00 meters averaging 5.90% zinc, 239.0 g/t silver, 2.51% lead, and 0.96 g/t gold in hole GUM-18-003, and 11.01 meters averaging 7.45% zinc, 275.1 g/t silver, 2.65% lead, and 0.77 g/t gold in hole GUM-18-004 (true widths estimated at 50% of reported interval lengths)," the firm stated in the media brief.

Gumsberg consists of five exploration licenses in the Bergslagen mining district of southern Sweden. According to the companies involved in the project, multiple zones of Volcanogenic Massive Sulfide style mineralization occur in the area, which was first mined in the 13th century.

Historic information reveals that up until the early 1900s, over 30 mines operated on the property, notably the Östrasilverberg mine which was the largest silver deposit in Europe between 1300 and 1590.

"Despite its long-lived production history, relatively little modern exploration has taken place on the project," the companies said.

Paulad a écrit : ↑

21 févr. 2019, 20:57

Dans quel secteur l'argent est-il indispensable ?

Paulad a écrit : ↑

21 févr. 2019, 21:10

Merci, rien d'essentiel