copper profiles in the sediments of a mining
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copper profiles in the sediments of a mining

Copper profiles in the sediments of a mining-impacted lake ...

Jan 14, 2010  The sediments of Torch Lake, located in Houghton County, MI, USA, have been impacted by copper mining activity. Remediation of the site has focused on immobilizing shoreline tailing deposits. However, a large amount of copper remains in the mining-sourced sediment, and high copper concentrations persist in surface sediments. This study analyzes sediment core and sediment

(PDF) Copper Profiles in the Sediments of a Mining ...

PurposeThe sediments of Torch Lake, located in Houghton County, MI, USA, have been impacted by copper mining activity. Remediation of the site has focused on immobilizing shoreline tailing deposits.

Copper profiles in the sediments of a mining-impacted lake.

Purpose: The sediments of Torch Lake, located in Houghton County, MI, USA, have been impacted by copper mining activity. Remediation of the site has focused on immobilizing shoreline tailing deposits. However, a large amount of copper remains in the mining-sourced sediment, and high copper concentrations persist in surface sediments. This study analyzes sediment core and sediment trap

Copper profiles in the sediments of a mining-impacted lake ...

Jan 14, 2010  Copper profiles in the sediments of a mining-impacted lake Copper profiles in the sediments of a mining-impacted lake McDonald, Cory; Urban, Noel; Barkach, John; McCauley, Dennis 2010-01-14 00:00:00 Physical sediment properties and copper concentrations indicate the shoreline tailings piles are probably not a significant source of copper to the post-mining sediment, suggesting

Sediment-Hosted Copper Deposits of the World: Deposit ...

Sediment-Hosted Copper Deposits of the World: Deposit Models and Database By Dennis P. Cox1, David A. Lindsey2 Donald A. Singer1, Barry C. Moring1, and Michael F. Diggles1 Including: Descriptive Model of Sediment-Hosted Cu 30b.1 by Dennis P. Cox1 Grade and Tonnage Model of Sediment-Hosted Cu by Dennis P. Cox1 and Donald A. Singer1 Descriptive Model of Reduced-Facies Cu 30b.2 By

Anthropogenic Copper Inventories and Mercury Profiles from ...

Given the vast size of Lake Superior, were sediment profiles at locations far offshore impacted by nearshore activities? Did copper and associated precious metal mining modify regional fluxes for ...

Source apportionment of trace metals in river sediments: A ...

Apr 01, 2016  In particular, the industrial activities of mining, smelting and refining from copper, lead-zinc, gold and coal mines were identified as the most important contributors of metal inputs to river sediments due to their discharge of mining wastewater and the leachate of tailing ponds. The results were compatible with that area's environmental data.

Copper mining on Isle Royale 6500– © The Author(s) 2014 ...

heightened sediment Pb loadings associated with copper mining from 8000 to 5000 yr BP (Pompeani et al., 2013). The restricted geographic distribution of the Keweenaw Peninsula study area relative to the larger Michigan Copper District region limited the scope

Nearshore Versus Offshore Copper Loading in Lake Superior ...

Jan 01, 1999  A thorough understanding of the fate and transport of metals in Lake Superior is necessary in order to predict the ability of Lake Superior to recover

Sediment and mining NIWA

Aug 23, 2010  Alluvial mining typically occurs on floodplain terraces, involving the removal of overlying vegetation and soils, and sluicing of gravels in off-channel ponds. These sediment-filled ponds may reduce re-establishment of riparian vegetation, alter river channels, and expose soils to erosion. Seepages from highly turbid sluicing ponds into streams ...

ANTHROPOGENIC COPPER INVENTORIES AND MERCURY PROFILES

Dec 22, 2005  During the past 150 years, the mining indstry discharged more than a billion tons of tailings along Lake Superior shorelines and constructed numerous smelters in the watershed. Given the vast size of Lake Superior, were sediment profiles at locations far offshore impacted by nearshore activities? Did copper and associated precious metal mining modify regional fluxes for copper and

DISTRIBUTION OF COPPER AND OTHER METALS IN GULLY

and stream sediment samples were collected from a rectangular oreo of about 800 square miles. The area includes two contiguous, virtually dormant, mining districts that hod yielded nearly $1.4 million in gold, silver, lead, copper, ond zinc prior to the end of World War I, mostly from quartz lodes.

SEDIMENT-HOSTED CU DEPOSITS (MODEL 30b; Cox, 1986)

The sediment-hosted copper model (Cox, 1986, Model 30b) has been subdivided into three models having different geologic features, grades and tonnages, and anticipated environmental effects a ssociated with mining and processing. The reduced-facies model (RF) includes deposits in widespread reduced-facies sedimentary rocks, is relatively high- ...

Anthropogenic Copper Inventories and Mercury Profiles from ...

Given the vast size of Lake Superior, were sediment profiles at locations far offshore impacted by nearshore activities? Did copper and associated precious metal mining modify regional fluxes for ...

Copper deposits of the western Upper Peninsula of Michigan

pine Mountains sediment-hosted copper district produced or potentially will produce 5.5 billion lbs of copper and 54 million ounces of silver. These stratiform/stratabound ... wood suggest a revival of the mining of copper-dominated deposits in the western Upper

Copper mining on Isle Royale 6500– © The Author(s) 2014 ...

heightened sediment Pb loadings associated with copper mining from 8000 to 5000 yr BP (Pompeani et al., 2013). The restricted geographic distribution of the Keweenaw Peninsula study area relative to the larger Michigan Copper District region limited the scope

Environmental Legacy of Copper Metallurgy and Mongol ...

Oct 09, 2014  Lake sediment geochemistry has been used elsewhere in the world to reconstruct mining and metalworking activities,12−14 yet relatively few records of this type exist in China.15,16 Yunnan has rich deposits of metals including copper, tin, lead, gold, silver, and iron, many of which are mined and

RECENT AND ANCIENT COPPER PRODUCTION IN THE

the copper metallurgy suggests the smelting of fahlores from the local mining sites of Schwaz-Brixlegg (KrISMEr et al., 2010). However, the archaeological confir-mation of the related fahlore mining in the field is still a desideratum. referring to geochemical analyses performed on copper

Sedimentation, Heavy Metals Profiles and Cluster Analysis ...

sediment will acted as effective carrier of heavy metals [9]. The present study explored the vertical profile distributions of Pb-210 and heavy metals including uranium and thorium in sediments of a representative fresh water former tin mining lake, to evaluate the sediment chronology and extent of pollution contributed by these metals. II.

Toxicity of Metals in Water and Sediment to Aquatic Biota

Toxicity of Metals in Water and Sediment to Aquatic Biota By John M. Besser and Kenneth J. Leib Chapter E19 of Integrated Investigations of Environmental Effects of Historical Mining in the Animas River Watershed, San Juan County, Colorado Edited by Stanley E. Church, Paul von Guerard, and Susan E. Finger Professional Paper 1651

Native North Americans Were Making Copper Tools in 7,500 ...

Mar 22, 2021  Sediment samples taken from several lakes adjacent to ancient copper mines in Michigan were also used to identify trace metals that would have been left behind by mining activity, adding another layer of confirmation to the revised radiocarbon dating profile.

Characterization of Metals in Water and Bed Sediment in ...

Historical metal-mining activity began in the late 1870s in the Boulder River and upper Animas River watersheds. Principal metals produced include silver, gold, lead, zinc, and copper. Ore bodies are sulfidic, and acidic drainage occurs in both areas. The mining districts in the Boulder River watershed are located primarily in three

DISTRIBUTION OF COPPER AND OTHER METALS IN GULLY

and stream sediment samples were collected from a rectangular oreo of about 800 square miles. The area includes two contiguous, virtually dormant, mining districts that hod yielded nearly $1.4 million in gold, silver, lead, copper, ond zinc prior to the end of World War I, mostly from quartz lodes.

SEDIMENT-HOSTED CU DEPOSITS (MODEL 30b; Cox, 1986)

The sediment-hosted copper model (Cox, 1986, Model 30b) has been subdivided into three models having different geologic features, grades and tonnages, and anticipated environmental effects a ssociated with mining and processing. The reduced-facies model (RF) includes deposits in widespread reduced-facies sedimentary rocks, is relatively high- ...

Baseline Studies on Water and Sediments in the Copper ...

Jan 11, 2002  Article . Baseline Studies on Water and Sediments in the Copper Mining Region of Salobo-3A, Carajas - Amazon, Brazil . Nina R. Damous b, Angela de L. R. Wagener* a, Sambasiva R. Patchineelam c and Klaus Wagener a. a Departamento de Química, Pontifícia Universidade Católica do Rio de Janeiro, 22453-900 Rio de Janeiro - RJ, Brazil . b Departamento de Geoquímica, Universidade

Sediment toxicity and bioaccumulation assessment in ...

Sediment toxicity and bioaccumulation assessment in abandoned copper and mercury mining areas of the Nalón River basin (Spain). Méndez-Fernández L(1), Rodríguez P, Martínez-Madrid M. Author information: (1)Department of Zoology and Animal Cellular Biology, University of the Basque Country, Box 644, 48080, Bilbao, Spain, [email protected]

Characterization of Metals in Water and Bed Sediment in ...

Historical metal-mining activity began in the late 1870s in the Boulder River and upper Animas River watersheds. Principal metals produced include silver, gold, lead, zinc, and copper. Ore bodies are sulfidic, and acidic drainage occurs in both areas. The mining districts in the Boulder River watershed are located primarily in three

RECENT AND ANCIENT COPPER PRODUCTION IN THE

the copper metallurgy suggests the smelting of fahlores from the local mining sites of Schwaz-Brixlegg (KrISMEr et al., 2010). However, the archaeological confir-mation of the related fahlore mining in the field is still a desideratum. referring to geochemical analyses performed on copper

Sedimentation, Heavy Metals Profiles and Cluster Analysis ...

sediment will acted as effective carrier of heavy metals [9]. The present study explored the vertical profile distributions of Pb-210 and heavy metals including uranium and thorium in sediments of a representative fresh water former tin mining lake, to evaluate the sediment chronology and extent of pollution contributed by these metals. II.

Native North Americans Were Making Copper Tools in 7,500 ...

Mar 22, 2021  Sediment samples taken from several lakes adjacent to ancient copper mines in Michigan were also used to identify trace metals that would have been left behind by mining activity, adding another layer of confirmation to the revised radiocarbon dating profile.

PUBLIC HEALTH STATEMENT Copper

chapter from the Toxicological Profile for Copper. ... soil, water, sediment, and, at low levels, air. Its average concentration in the earth's crust is about 50 parts copper per million parts soil (ppm) or, ... from the mining of copper and other metals, and from factories that make or use copper metal or

(PDF) Mercury, copper and zinc contamination in soils and ...

Mercury, copper and zinc contamination in soils and fluvial sediments from an abandoned gold mining area in southern Minas Gerais State, Brazil Environmental Earth Sciences, 2010 S. Egler

1.1 PHASES OF A MINING PROJECT - ELAW

1. Overview of Mining and its Impacts1 Proposed mining projects vary according to the type of metals or materials to be extracted from the earth. The majority of proposed mining projects involve the extraction of ore deposits such as copper, nickel, cobalt, gold, silver, lead,

Heavy Metals in Vertical Profiles of the Middle Odra River ...

Heavy metal concentrations were investigatedin the overbank sediments in the middle reach of the regulatedOdra River, in south-west Poland. Samples of sediments weretaken in 20 vertical profiles to a depth of 70 cm at 1–20 cmintervals. Regulation and lateral stability of the riverchannel for over 150 years enabled to follow the decrease indepth of the Cu and Pb concentration peaks across ...

Source apportionment of trace metals in river sediments: A ...

Anthropogenic sources were apportioned as the most important pollution sources influencing the sediment metals in Le'an River with contributions of about 90%. Among them, copper tailings occupied the largest contribution (38.4-42.2%), followed by mining wastewater (29.0-33.5%), and agricultural activities (18.2-18.7%).

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