ABANDONED UNIT
Publication: 6 August 2019
DISCLAIMER: This English version is translated from the original French. In case of any discrepancy, the French version shall prevail.
| Author(s): | Simard et al., 2013 |
| Age: | Archean to Paleoproterozoic |
| Stratotype: | None |
| Type area: | Kuujjuaq and Ungava Bay area (NTS sheet 24K) |
| Geological province: | Churchill Province |
| Geological subdivision: | Rachel-Laporte Lithotectonic Domain |
| Lithology: | Granitic gneiss |
| Category: | Lithodemic |
| Rank: | Lithodeme |
| Status: | Formal |
| Use: | Active |
Background
The Ballantyne Suite was introduced by Simard et al. (2013) to describe a strip of microcline gneiss within the Rachel-Laporte Lithotectonic Domain in the Kuujjuaq and Ungava Bay areas (sheet 24K). As part of the Southeastern Churchill Province (SECP) synthesis, Lafrance et al. (2018) identified new lithotectonic domains within the SECP and moved the boundary between the Rachel-Laporte and Baleine domains to the west.
Reasons for abandonment
Following the shift of the boundary between the Rachel-Laporte and Baleine lithotectonic domains eastward, gneiss of the Ballantyne Suite were grouped by Lafrance et al. (2020) with siliceous granitic gneiss of the Ungava Complex (unit ApPung4b). This grouping is justified by the strong resemblance between these various migmatized gneiss, possibly of sedimentary origin and granitic composition.
References
Publications available through SIGÉOM Examine
LAFRANCE, I., CHARETTE, B., VANIER, M.-A., 2018. Sud-est de la Province de Churchill, Nunavik, Québec, Canada: synthèse de la géologie. MERN; BG 2018-12
LAFRANCE, I., VANIER, M.-A., CHARETTE, B., 2020. Domaine lithotectonique de Baleine, sud-est de la Province de Churchill, Québec, Canada: synthèse de la géologie. MERN; BG 2020-07, 4 plans.
SIMARD, M., LAFRANCE, I., HAMMOUCHE, H., LEGOUIX, C., 2013. GEOLOGIE DE LA REGION DE KUUJJUAQ ET DE LA BAIE D’UNGAVA (SNRC 24J, 24K). MRN; RG 2013-04, 62 pages, 1 plan.
Suggested Citation
Ministère de l’Énergie et des Ressources naturelles (MERN). Ballantyne Suite (abandoned unit). Quebec Stratigraphic Lexicon. https://gq.mines.gouv.qc.ca/lexique-stratigraphique/province-de-churchill/suite-de-ballantyne_en [accessed on Day Month Year].
Contributors
|
First publication |
Isabelle Lafrance, P.Geo., M.Sc. isabelle.lafrance@mern.gouv.qc.ca (redaction) Mehdi A. Guemache, P.Geo., Ph.D. (coordination and editing); Céline Dupuis, P.Geo., Ph.D. (English version). |
10 février 2020