Methods of exploration for strata-bound mineral deposits in the Appalachian-Caledonian Orogen

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doi: 10.2113/gsecongeo.79.7.1749
Authors:Gallagher, M. J.
Author Affiliations:Primary:
Br. Geol. Surv., Edinburgh, United Kingdom
Other:
Univ. Trondheim, Norway
Volume Title:special issue devoted to massive sulfide deposits of the Appalachian-Caledonian Orogen
Volume Authors:Gair, Jacob E., editor; Vokes, Frank M.
Source:Economic Geology and the Bulletin of the Society of Economic Geologists, 79(7), p.1749-1758; Symposium on Correlation of Caledonian stratabound sulfides, Ottawa, ON, Canada, Sept. 1983, edited by Jacob E. Gair and Frank M. Vokes. Publisher: Economic Geology Publishing Company, Lancaster, PA, United States. ISSN: 0361-0128
Publication Date:1984
Note:In English. 18 refs.; illus. incl. 3 tables
Summary:In response to a questionnaire on the topic of strata-bound mineral deposits in the Caledonian-Appalachian orogen circulated in 1980-1981, 82 contributions were received: United States (20), Canada (17), Denmark--for Greenland (3), Ireland (3), United Kingdom (10), Norway (6), and Sweden (23).On the basis of 68 strata-bound mineral deposits found in the past, the most successful methods of exploration have been geologic mapping and ground electromagnetic surveys, followed by geologic interpretation and prospecting. Boulder tracing found Laisvall and many other deposits in Sweden. The Brunswick 12 deposit in Canada was discovered by airborne magnetic and ground electromagnetic methods.Reports from 58 districts illustrate that a wider range of methods is currently being used for strata-bound mineral exploration in the Appalachian-Caledonian orogen than in the past. Geologic interpretation and ground electromagnetic techniques are proving to be most effective, followed by mapping and soil and till sampling. Photogeology, general prospecting, boulder tracing, drainage geochemistry, and airborne techniques are also achieving considerable success. Outstanding results are being obtained from magnetic and gravity surveys in the Bathurst area of Canada. [G.J.N.]
Subjects:Appalachian Phase; Applications; Caledonian Orogeny; Critical review; Economic geology; Geochemical methods; Geological methods; Geophysical methods; IGCP; Massive deposits; Metal ores; Methods; Mineral exploration; Orogenic belts; Orogeny; Paleozoic; Permian; Stratabound deposits; Sulfides; Appalachians; Caledonides; Europe; North America; Scandinavia; Western Europe; Appalachian-Caledonian Orogen
Abstract Numbers:85M/2522
Record ID:1985005679
Copyright Information:GeoRef, Copyright 2019 American Geosciences Institute. Abstract, Copyright, Society of Economic Geologists
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