Geochemical prospecting at Cobalt, Ontario

George F. Koehler, P. Blair Hostetler, Heinrich D. Holland

Research output: Contribution to journalArticleResearchpeer-review

Abstract

A program of geochemical prospecting was carried out in the summer of 1952 near Cobalt, Ontario. The area in which this work was done lies in the Precambrian shield of Canada, about 320 miles north of Toronto. Much of the area is covered by glacial deposits. The known ore bodies are predominantly thin veins of silver, and nickel and cobalt arsenides found as mesothermal fissure fillings in vertical faults and joints of the area. The cobalt concentration in samples of glacial material, collected on a horizontal and vertical grid over an area of proven mineralization at depth, was determined in order to test the applicability of geochemical prospecting techniques in locating ore bodies in similar situations. A cobalt anomaly in the overburden was located; subsequent drilling proved up mineralization in non-commercial quantities in the bedrock. It is concluded that the present technique is applicable in locating ore bodies where mineralization extends to the bedrock surface in geologic settings similar to those in the Cobalt, Ontario district.

LanguageEnglish
Pages378-388
Number of pages11
JournalEconomic Geology
Volume49
Issue number4
DOIs
Publication statusPublished - 1 Jun 1954

Fingerprint

Ontario
Cobalt
cobalt
ore body
Ores
minerals
bedrock
mineralization
arsenides
glacial deposit
Nickel
drilling
Canada
veins
Silver
fissure
overburden
summer
shield
Precambrian

Cite this

Koehler, G. F., Hostetler, P. B., & Holland, H. D. (1954). Geochemical prospecting at Cobalt, Ontario. Economic Geology, 49(4), 378-388. https://doi.org/10.2113/gsecongeo.49.4.378
Koehler, George F. ; Hostetler, P. Blair ; Holland, Heinrich D. / Geochemical prospecting at Cobalt, Ontario. In: Economic Geology. 1954 ; Vol. 49, No. 4. pp. 378-388.
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Koehler, GF, Hostetler, PB & Holland, HD 1954, 'Geochemical prospecting at Cobalt, Ontario', Economic Geology, vol. 49, no. 4, pp. 378-388. https://doi.org/10.2113/gsecongeo.49.4.378

Geochemical prospecting at Cobalt, Ontario. / Koehler, George F.; Hostetler, P. Blair; Holland, Heinrich D.

In: Economic Geology, Vol. 49, No. 4, 01.06.1954, p. 378-388.

Research output: Contribution to journalArticleResearchpeer-review

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Koehler GF, Hostetler PB, Holland HD. Geochemical prospecting at Cobalt, Ontario. Economic Geology. 1954 Jun 1;49(4):378-388. https://doi.org/10.2113/gsecongeo.49.4.378