نتایج جستجو برای: zarshouran gold mine

تعداد نتایج: 106043  

2016
Andreas Hauptmann Sabine Klein

This study represents a joint pilot project between archaeological and natural sciences, aimed at exploring the technology and provenance of gold artefacts, exemplified for the case of Georgia. It is focussed on the prehistoric gold mine of Sakdrisi. The study included the investigation of both Bronze Age gold artefacts and native gold by chemical and lead isotope analyses using ICP-mass spectr...

M Moradian M. Moradian Z. Boroumand

Widespread arsenic contamination of mining wastewater of Zarshouran (West Azerbaijan province) has led to a massive epidemic of arsenic poisoning in the whole of surrounding areas. It is estimated that approximately all agriculture fields are being irrigated with the water that its arsenic concentrations elevated above the World Health Organization’s standard of 10 parts per billion. A novel ad...

1985
Marmion Howe Dan Noble

This is a study of the impact of cyanide from mining waste on riparian communities, primarily vegetation, near Whitewood Creek, downstream from Homestake Gold Mine in Lead, South Dakota. Cyanide is used in gold processing, and the effluent, until fairly recently, was discharged directly into Gold Run Creek which empties into Whitewood Creek. Vegetation, soil, and water were collected from four ...

2002
James R. Clark A. E. Williams-Jones

This report presents three new potassium-argon isotopic age determinations of minerals associated with epithermal alteration from the Toodoggone district, north-central British Columbia. The Toodoggone area has received extensive exploration attention over the past 10 years. In addition to a former goldsilver producer (Baker mine), the district contains a major new gold-silver mine in developme...

2016
Katrina L. Callender Sébastien Roy Damase P. Khasa Lyle G. Whyte Charles W. Greer

Phytotechnologies are rapidly replacing conventional ex-situ remediation techniques as they have the added benefit of restoring aesthetic value, important in the reclamation of mine sites. Alders are pioneer species that can tolerate and proliferate in nutrient-poor, contaminated environments, largely due to symbiotic root associations with the N2-fixing bacteria, Frankia and ectomycorrhizal (E...

Journal: :Acta Chimica Asiana 2023

Freeport Indonesia is one of Freeport-McMoRan Copper & Gold Inc. affiliate companies. conducted a series mining and exploration processes for ore containing gold, silver, copper. Grasberg the location in PT Freeport, Indonesia. This research aimed to determine distribution gold (Au) particles rock samples with relatively high content. The method used analyzing content was Fire Assay. result...

Journal: :Environmental science. Processes & impacts 2017
Casey M Saup Kenneth H Williams Lucía Rodríguez-Freire José M Cerrato Michael D Johnston Michael J Wilkins

The Gold King Mine spill in August 2015 released 11 million liters of metal-rich mine waste to the Animas River watershed, an area that has been previously exposed to historical mining activity spanning more than a century. Although adsorption onto fluvial sediments was responsible for rapid immobilization of a significant fraction of the spill-associated metals, patterns of longer-term mobilit...

2016
Mauricio Romero Santiago Saavedra Prashant Bharadwaj Pascaline Dupas Thomas Ginn

Mining can propel economic growth, but often results in heavy metal releases, that could negatively impact human health. Using a differencein-differences strategy we estimate the impact of gold mining on the health of newborns in Colombia. We find heterogeneous effects depending on where mothers are located with respect to a mine. Mothers living in the vicinity of a mine are positively affected...

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