AMEC, SRK Consulting, and Nova Scotia Environment to develop optimized remediation methods for arsenic-rich gold mine tailings. Remediation strategies for mine wastes at publicly accessible sites like those in Nova Scotia typically employ clean soil covers to reduce human exposure and dust generation. However, burying the tailings under

Mining of arsenopyrite-bearing gold ores in Nova Scotia in the late 1800s and early 1900s has left a legacy of weathered, As-rich tailings deposits in more than 60 gold districts across the province. Fourteen samples of near-surface tailings and one of soil from several former gold mines frequented by the public were sieved to <150 μm and ...

From 1861 to the mid-1940s, stamp milling at lode gold mines in Nova Scotia, Canada, generated more than 3 million tonnes of tailings. Most of the gold was recovered using Hg amalgamation, and an ...

Tailings are a sand-like material. There are usually no rocks mixed in, but sometimes there are. The colour can vary between light brown to dark grey. They often look like a beach with fine sand but they are located inland without water. If your property is located in an old gold mine district …

From 1861 to the mid-1940s, stamp milling at orogenic lode gold mines in Nova Scotia generated more than 3,000,000 tonnes of tailings. Most of the mined gold was recovered using mercury (Hg ...

Gold was mined in 64 districts in southern Nova Scotia between 1861 and the early 1940s, followed by limited, intermittent production up to the present. There is extensive dispersion of arsenic- and mercury-bearing mine tailings in the receiving environment downstream from many of these sites. Elevated mercury concentrations, …

Gold mine tailings are the by-product of a mining process used in the 1800s and early 1900s in Nova Scotia and many other areas. The tailings contain arsenic and mercury. …

From 1861 to the 1940s, gold was produced from 64 mining districts in Nova Scotia, where mercury amalgamation was the dominant method for the extraction of gold from ore until the 1880s. As a result, wastes (tailings) from the milling process were contaminated by mercury and were high in naturally o …

The purpose of the proposed undertaking is to support the existing operations at the Touquoy Gold Mine located in Moose River, Nova Scotia, 63km Northeast of Halifax and 19 km southeast of Middle Musquodoboit. ... The in-pit tailings disposal is planned to begin in 2022 and will cease when tailings are no longer processed at this site.

Gold mining in the Province of Nova Scotia started in the 1860s. Most of the gold mines were in the Halifax and Guysborough Counties along the eastern seaboard. By the 1940s, most of the mines were closed as the low grade ore became too expensive to process. This paper focuses on abandoned waste material from mining activities in …

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Australian miner St Barbara acquired the mine in 2019 for $722 million.

The Caribou gold-mining areas in Nova Scotia, Canada were in full production from 1869 to 1927. Abandoned waste rocks and fine-grained tailings from Hg-amalgamation processes have weathered into ...

Tailings samples from the Goldenville and Montague abandoned gold mines in Nova Scotia, Canada were subjected to bioaccessibility tests to examine the effects of the choice of particle size fraction on the bioaccessibility of arsenic. The proportion of finer grains (<150μm) in this sample set var …

Photos of tailings and other information are also on this site to help Nova Scotians in gold mining districts determine if they may have tailings on their properties. Nova Scotians who have reason to think they may have tailings on or near their properties or who have other questions can call the provincial public inquiries line at 902-424-5200 ...

Section snippets Description of samples, reagents and reference material. Tailings samples selected for this study were collected in 2006 at the Montague (MG, n = 14) and Goldenville (GD, n = 13) historic gold mining sites in Nova Scotia, Canada.They are identified by a two-letter and two-digit prefix representing the location and collection …

Province House. Public paying the price to clean up old gold mines. Anaconda Mining says the province indemnified it from any liabilities associated with the …

In another study of 2 gold mine tailings sites in Nova Scotia, Winch et al. (2008) showed that concentrations of MeHg were high in tailings and porewaters but low in overlying surface waters.

Once valuable minerals, metals and energy products are extracted from ore in the beneficiation stage, what remains is called tailings. Since this material often contains metals and chemicals that can negatively impact the natural environment, it is stored in an engineered tailings management area.

Adjacent property hosts an Indicated Resource of 115,500 tonnes @ 11.9 g/t gold for 58,000 contained ounces and an Inferred Resource of 703,900 tonnes @ 6.6 g/t gold for 150,000 contained ounces (NI 43-101 Resource Estimate – Resource Capital Gold Corp – …

Nova Scotians are advised to avoid exposure to material known as tailings leftover from gold mining in the province in the late 1800s and early 1900s. The tailings …

The situation is worse at Lake Charles. Now in an urban area, the lake received tailings from gold mining at Montague in Dartmouth. Arsenic levels in Lake Charles have actually risen since 2010.

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The gold mine tailings are left from gold mining in the province in the late 1800s and early 1900s. Since government's first announcement in June, the Historic Gold Mines Advisory Committee is addressing new concerns about the recreational use of gold mine tailing sites in Montague, Halifax Co., and Goldenville, Guysborough Co.

Historical gold mining operations in Nova Scotia, Canada, resulted in numerous deposits of publicly accessible, arsenic (As)-rich mine waste that has weathered in situ for 75–150 years, resulting in a wide range of As-bearing secondary minerals. The geochemical heterogeneity of this mine waste creates a challenge for identifying a single …

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From 1861 to the mid-1940s, stamp milling at orogenic lode gold mines in Nova Scotia generated more than 3,000,000 tonnes of tailings. Most of the mined gold was recovered using mercury (Hg) amalgamation, and an estimated 10-25% of the Hg used was lost to the tailings and to the atmosphere. .

Tailings are a by-product of a gold mining process that was common in the late 1800s and early 1900s. Gold-bearing rocks that also contain arsenic were crushed and spread over …

The study lakes are located in urban Dartmouth, Nova Scotia, about 1 km from the legacy tailing fields in the historical Montague Gold District (Fig. 1).The underlying geology is rich in pyrrhotite and pyrite, with lesser chalcopyrite, galena, sphalerite, and arsenopyrite (White and Goodwin, 2011).The Montague operations occurred between …