The Wollaston Lake fold-belt system, Saskatchewan–Manitoba
The Wollaston Lake fold-belt system, a major feature of the Churchill (structural) Province, consists of coalescing fold belts that collectively have been traced for about 400 miles. The fold belts, formed during the Hudsonian orogeny ~1750 million years ago, consist of tightly to isoclinally folded...
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1968
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crcansciencepubl:10.1139/e68-146 2023-12-17T10:28:51+01:00 The Wollaston Lake fold-belt system, Saskatchewan–Manitoba Money, P. L. 1968 http://dx.doi.org/10.1139/e68-146 http://www.nrcresearchpress.com/doi/pdf/10.1139/e68-146 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Earth Sciences volume 5, issue 6, page 1489-1504 ISSN 0008-4077 1480-3313 General Earth and Planetary Sciences journal-article 1968 crcansciencepubl https://doi.org/10.1139/e68-146 2023-11-19T13:38:54Z The Wollaston Lake fold-belt system, a major feature of the Churchill (structural) Province, consists of coalescing fold belts that collectively have been traced for about 400 miles. The fold belts, formed during the Hudsonian orogeny ~1750 million years ago, consist of tightly to isoclinally folded metamorphic and migmatitic rocks. They are bounded mainly by granitic rocks (in the broad sense) that are probably in part younger and in part older. The metamorphic rocks comprising them have been assigned locally to the Daly Lake, Sandfly Lake, or Meyers Lake Groups. The Daly Lake Group (a miogeosynclinal type of assemblage) has an uncertain relationship to the Sandfly Lake Group (eugeosynclinal assemblage); it was probably not deposited contemporaneously with the Meyers Lake Group. The Meyers Lake Group, which has a considerable resemblance to 'stable shelf 1 assemblages, although it is less mature, overlies the Sandfly Lake Group, probably unconformably. Metamorphic rocks lithologically similar to those assigned to the Daly Lake Group form most of the fold-belt system. Rocks similar to those assigned to the other groups are of limited extent. The rocks within the fold-belt system have undergone regional metamorphism of the andalusite–sillimanite or low pressure intermediate type and in general now belong to the amphibolite facies. Mineralization within the fold-belt system, consisting of syngenetic (?) sphalerite, galena, and copper minerals, was widespread, but is not yet known to be of economic importance. The most prominent zone of magnetic anomalies in the Precambrian of Saskatchewan coincides in part with the fold-belt system. Article in Journal/Newspaper Churchill Canadian Science Publishing (via Crossref) Daly ENVELOPE(63.761,63.761,-67.513,-67.513) Wollaston ENVELOPE(-60.790,-60.790,-63.668,-63.668) Wollaston Lake ENVELOPE(-103.156,-103.156,58.111,58.111) Daly Lake ENVELOPE(-110.839,-110.839,59.622,59.622) Sandfly Lake ENVELOPE(-106.101,-106.101,55.717,55.717) Canadian Journal of Earth Sciences 5 6 1489 1504 |
institution |
Open Polar |
collection |
Canadian Science Publishing (via Crossref) |
op_collection_id |
crcansciencepubl |
language |
English |
topic |
General Earth and Planetary Sciences |
spellingShingle |
General Earth and Planetary Sciences Money, P. L. The Wollaston Lake fold-belt system, Saskatchewan–Manitoba |
topic_facet |
General Earth and Planetary Sciences |
description |
The Wollaston Lake fold-belt system, a major feature of the Churchill (structural) Province, consists of coalescing fold belts that collectively have been traced for about 400 miles. The fold belts, formed during the Hudsonian orogeny ~1750 million years ago, consist of tightly to isoclinally folded metamorphic and migmatitic rocks. They are bounded mainly by granitic rocks (in the broad sense) that are probably in part younger and in part older. The metamorphic rocks comprising them have been assigned locally to the Daly Lake, Sandfly Lake, or Meyers Lake Groups. The Daly Lake Group (a miogeosynclinal type of assemblage) has an uncertain relationship to the Sandfly Lake Group (eugeosynclinal assemblage); it was probably not deposited contemporaneously with the Meyers Lake Group. The Meyers Lake Group, which has a considerable resemblance to 'stable shelf 1 assemblages, although it is less mature, overlies the Sandfly Lake Group, probably unconformably. Metamorphic rocks lithologically similar to those assigned to the Daly Lake Group form most of the fold-belt system. Rocks similar to those assigned to the other groups are of limited extent. The rocks within the fold-belt system have undergone regional metamorphism of the andalusite–sillimanite or low pressure intermediate type and in general now belong to the amphibolite facies. Mineralization within the fold-belt system, consisting of syngenetic (?) sphalerite, galena, and copper minerals, was widespread, but is not yet known to be of economic importance. The most prominent zone of magnetic anomalies in the Precambrian of Saskatchewan coincides in part with the fold-belt system. |
format |
Article in Journal/Newspaper |
author |
Money, P. L. |
author_facet |
Money, P. L. |
author_sort |
Money, P. L. |
title |
The Wollaston Lake fold-belt system, Saskatchewan–Manitoba |
title_short |
The Wollaston Lake fold-belt system, Saskatchewan–Manitoba |
title_full |
The Wollaston Lake fold-belt system, Saskatchewan–Manitoba |
title_fullStr |
The Wollaston Lake fold-belt system, Saskatchewan–Manitoba |
title_full_unstemmed |
The Wollaston Lake fold-belt system, Saskatchewan–Manitoba |
title_sort |
wollaston lake fold-belt system, saskatchewan–manitoba |
publisher |
Canadian Science Publishing |
publishDate |
1968 |
url |
http://dx.doi.org/10.1139/e68-146 http://www.nrcresearchpress.com/doi/pdf/10.1139/e68-146 |
long_lat |
ENVELOPE(63.761,63.761,-67.513,-67.513) ENVELOPE(-60.790,-60.790,-63.668,-63.668) ENVELOPE(-103.156,-103.156,58.111,58.111) ENVELOPE(-110.839,-110.839,59.622,59.622) ENVELOPE(-106.101,-106.101,55.717,55.717) |
geographic |
Daly Wollaston Wollaston Lake Daly Lake Sandfly Lake |
geographic_facet |
Daly Wollaston Wollaston Lake Daly Lake Sandfly Lake |
genre |
Churchill |
genre_facet |
Churchill |
op_source |
Canadian Journal of Earth Sciences volume 5, issue 6, page 1489-1504 ISSN 0008-4077 1480-3313 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/e68-146 |
container_title |
Canadian Journal of Earth Sciences |
container_volume |
5 |
container_issue |
6 |
container_start_page |
1489 |
op_container_end_page |
1504 |
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1785581063530086400 |