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Title: Geochemistry of sediments in the Back Bay and Yellowknife Bay of the Great Slave Lake

Abstract

Gold mining activities have generated wastes with high concentrations of arsenic and zinc in the vicinity of Yellowknife, Northwest Territories, Canada. Some of the waste material has been discharged into Yellowknife Bay of Great Slave Lake. Concentrations of arsenic and zinc were determined in sediment cores collected at the depositional areas of Yellowknife Bay. Sedimentation rates were estimated using two different radiometric approaches: the depth profiles of cesium 137 and lead 210. Geochemical analysis of the sediment cores indicated input of similar material into sampling areas over the past 50 yr. Age profiles of the sediment constructed from the radionuclide measurements were used to determine historical trends of arsenic and zinc inputs into Yellowknife Bay. The historical record was in good agreement with implemented remedial actions and the usage patterns of both elements. 16 refs., 6 figs., 3 tabs.

Authors:
; ; ; ;  [1]
  1. (National Water Research Institute, Burlington, Ontario (Canada))
OSTI Identifier:
7101325
Resource Type:
Journal Article
Journal Name:
Environmental Geology and Water Sciences; (USA)
Additional Journal Information:
Journal Volume: 14:1; Journal ID: ISSN 0177-5146
Country of Publication:
United States
Language:
English
Subject:
54 ENVIRONMENTAL SCIENCES; ARSENIC; ECOLOGICAL CONCENTRATION; CANADA; WATER POLLUTION; SEDIMENTS; GEOCHEMISTRY; ZINC; BAYS; CESIUM 137; DRILL CORES; GOLD; HISTORICAL ASPECTS; ISOTOPE DATING; LAKES; LEAD 210; MINING; MONITORING; POLLUTION SOURCES; AGE ESTIMATION; ALKALI METAL ISOTOPES; ALPHA DECAY RADIOISOTOPES; BETA DECAY RADIOISOTOPES; BETA-MINUS DECAY RADIOISOTOPES; CESIUM ISOTOPES; CHEMISTRY; ELEMENTS; EVEN-EVEN NUCLEI; HEAVY NUCLEI; ISOTOPES; LEAD ISOTOPES; METALS; NORTH AMERICA; NUCLEI; ODD-EVEN NUCLEI; POLLUTION; RADIOISOTOPES; SEMIMETALS; SURFACE WATERS; TRANSITION ELEMENTS; YEARS LIVING RADIOISOTOPES; 540320* - Environment, Aquatic- Chemicals Monitoring & Transport- (1990-); 540311 - Environment, Aquatic- Basic Studies- Radiometric Techniques- (1990-)

Citation Formats

Mudroch, A., Joshi, S.R., Sutherland, D., Mudroch, P., and Dickson, K.M. Geochemistry of sediments in the Back Bay and Yellowknife Bay of the Great Slave Lake. United States: N. p., Web. doi:10.1007/BF01740583.
Mudroch, A., Joshi, S.R., Sutherland, D., Mudroch, P., & Dickson, K.M. Geochemistry of sediments in the Back Bay and Yellowknife Bay of the Great Slave Lake. United States. doi:10.1007/BF01740583.
Mudroch, A., Joshi, S.R., Sutherland, D., Mudroch, P., and Dickson, K.M. . "Geochemistry of sediments in the Back Bay and Yellowknife Bay of the Great Slave Lake". United States. doi:10.1007/BF01740583.
@article{osti_7101325,
title = {Geochemistry of sediments in the Back Bay and Yellowknife Bay of the Great Slave Lake},
author = {Mudroch, A. and Joshi, S.R. and Sutherland, D. and Mudroch, P. and Dickson, K.M.},
abstractNote = {Gold mining activities have generated wastes with high concentrations of arsenic and zinc in the vicinity of Yellowknife, Northwest Territories, Canada. Some of the waste material has been discharged into Yellowknife Bay of Great Slave Lake. Concentrations of arsenic and zinc were determined in sediment cores collected at the depositional areas of Yellowknife Bay. Sedimentation rates were estimated using two different radiometric approaches: the depth profiles of cesium 137 and lead 210. Geochemical analysis of the sediment cores indicated input of similar material into sampling areas over the past 50 yr. Age profiles of the sediment constructed from the radionuclide measurements were used to determine historical trends of arsenic and zinc inputs into Yellowknife Bay. The historical record was in good agreement with implemented remedial actions and the usage patterns of both elements. 16 refs., 6 figs., 3 tabs.},
doi = {10.1007/BF01740583},
journal = {Environmental Geology and Water Sciences; (USA)},
issn = {0177-5146},
number = ,
volume = 14:1,
place = {United States},
year = {},
month = {}
}