Foundational-Resource Extraction: Difference between revisions
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[https://www.osti.gov/etdeweb/biblio/20464971 by Cranstone, D A 1/7/20 ETDEWEB] | [https://www.osti.gov/etdeweb/biblio/20464971 by Cranstone, D A 1/7/20 ETDEWEB] | ||
Mineral production through the years, exploration expenditures for non-petroleum minerals, changing rates and costs of ore discovery, ore reserves, the petroleum industry, sulphur production, and principal mineral areas are described. The future of mineral exploration and of mineral production in the long term are discussed. The report includes an early history of Canada's mineral industry, prospecting, and mineral exploration. 16 refs., 68 figs. | Mineral production through the years, exploration expenditures for non-petroleum minerals, changing rates and costs of ore discovery, ore reserves, the petroleum industry, sulphur production, and principal mineral areas are described. The future of mineral exploration and of mineral production in the long term are discussed. The report includes an early history of Canada's mineral industry, prospecting, and mineral exploration. 16 refs., 68 figs. | ||
=====Reconstructing the history of mining and remediation in the Coeur d’Alene, Idaho Mining District using lake sediments===== | |||
[https://www.sciencedirect.com/science/article/abs/pii/S004565351500394X by Matthew J. Morra 9/15 ScienceDirect] | |||
Mining that began in the late 1800s intensified during World War II contaminating Lake Coeur d’Alene sediments with potentially toxic elements. We used 80 y of the sediment record to reconstruct metal(loid) loadings to the lake and quantitatively evaluate the effectiveness of tailings management. Sediment core analysis for pollen, chronological markers, and metal(loid)s permitted stratigraphic reconstruction showing that contaminant loading decreased after tailings pond construction, but that most metal(loid) concentrations exceed recommended limits. Arsenic concentrations (250–450 mg kg−1) at the sediment–water interface are potentially toxic; however, low P concentrations in recent sediments (1.0–1.4 mg kg−1) inhibit eutrophication and the concomitant release of soluble As. | |||
