skip to main content

Title: Lake sediment records of industrialization in the Sudbury area of Ontario, Canada

The smelting of nickel and copper sulfide ores has drastically modified the original landscape around Sudbury, Ontario. A record of this impact exists in the sediments of local lakes. Changes in the annual fallout of heavy metals, identifiable smoke particulates, and pollen grains reflect the changes that occurred in the sedimentation rate and the vegetation. A year by year chronology for the last 300 years was provided by meromictic lake sediments containing countable seasonal laminations, obtained by a freezing technique that kept the sediments and sediment/water interface undisturbed. Results indicate that: correspondences of vegetation changes, and sedimentation rates with metal residues and smoke particulates in the sediments, and with published smelter records are good; annual laminations in meromictic lakes provided an excellent chronology, as checked against known dates for settlement and the onset of smelting; identifiable smoke particulates provided a good record of smelter activity, and were also a check on metal residue mobility in the sediments.
Authors:
Publication Date:
OSTI Identifier:
6471122
Report Number(s):
CONF-8510489-
Journal ID: CODEN: GAAPB
Resource Type:
Conference
Resource Relation:
Journal Name: Geol. Soc. Am., Abstr. Programs; (United States); Journal Volume: 17; Conference: 98. annual meeting of the Geological Society of America, Orlando, FL, USA, 28 Oct 1985
Research Org:
California State Univ., Bakersfield (USA)
Country of Publication:
United States
Language:
English
Subject:
54 ENVIRONMENTAL SCIENCES; 58 GEOSCIENCES; LAKES; PARTICULATES; SEDIMENTS; ONTARIO; WASHOUT; CHEMICAL COMPOSITION; STRATIGRAPHY; SMELTERS; AIR POLLUTION; ASHES; ATMOSPHERIC PRECIPITATIONS; COPPER ORES; EROSION; EXHAUST GASES; GEOCHEMISTRY; INDUSTRIAL WASTES; LAND POLLUTION; METAL INDUSTRY; NICKEL ORES; SEDIMENTATION; SMELTING; SMOKES; WATER POLLUTION; AEROSOLS; CANADA; CHEMISTRY; COLLOIDS; DISPERSIONS; FLUIDS; GASEOUS WASTES; GASES; GEOLOGY; INDUSTRY; NORTH AMERICA; ORES; PARTICLES; POLLUTION; PRECIPITATION SCAVENGING; RESIDUES; SEPARATION PROCESSES; SOLS; SURFACE WATERS; WASTES 520200* -- Environment, Aquatic-- Chemicals Monitoring & Transport-- (-1989); 510200 -- Environment, Terrestrial-- Chemicals Monitoring & Transport-- (-1989); 500200 -- Environment, Atmospheric-- Chemicals Monitoring & Transport-- (-1989); 580400 -- Geochemistry-- (-1989)