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Translation of original French
| Author: | Dion et al., 1992 |
| Age: | Neoarchean |
| Reference section: | None |
| Type area: | Northwestern portion of sheet 32G15-200-0202 and southwestern portion of sheet 32J02-200-0102 |
| Geological province: | Superior Province |
| Geological subdivision: | Abitibi Subprovince |
| Lithology: | Tonalite |
| Type: | Lithodemic |
| Rank: | Lithodeme |
| Status: | Formal |
| Use: | Active |
None
Background
This tonalitic Rush Pluton was defined by Dion et al. (1992).
Description
The tonalitic composition and layout of the Rush Pluton were interpreted from gravimetric and aeromagnetic data (Dion et al., 1992; Morin, 1994; Keating and D’Amours, 2010), as it does not outcrop.
Thickness and Distribution
The Rush Pluton layout corresponds to negative gravimetric and aeromagnetic anomalies (Dion et al., 1992; Morin, 1994; Keating and D’Amours, 2010). It has an irregular shape: its N-S axis is 4.5 km and its E-W axis is 5 km. In addition, it shows an apophysis measuring 1 x 2 km which extends to the east.
Dating
None.
Stratigraphic Relationship(s)
The Rush Pluton cuts volcanic and sedimentary rocks of the Bruneau (2724.4 ±1.2 Ma; Davis et al., 2014), Blondeau (<2721 ±3 Ma; Leclerc et al., 2012) and Bordeleau formations that characterize the summit of the Roy Group.
Paleontology
Does not apply.
References
| Author(s) | Title | Year of Publication | Hyperlink (EXAMINE or Other) |
|---|---|---|---|
| DAVIS, D.W. – SIMARD, M. – HAMMOUCHE, H. – BANDYAYERA, D. – GOUTIER, J. – PILOTE, P. – LECLERC, F. – DION, C. | Datations U-Pb effectuées dans les provinces du Supérieur et de Churchill en 2011-2012. Ministère des Ressources naturelles, Québec; RP 2014-05, 62 pages. | 2014 | RP 2014-05 |
| DION, D.J. – MORIN, R. – KEATING, P. | Synthèse géologique et géophysique de la région de Chapais : portion orientale de la ceinture de l’Abitibi québécoise. Canadian Journal of Earth Sciences; volume 29, pages 314-327. | 1992 | Source |
| KEATING, P. – D’AMOURS, I. | Réédition des données numériques en format GEOSOFT (profils) des levés aéroportés de l’Abitibi, au Québec. Ministère des Ressources naturelles et de la Faune, Québec, Geological Survey of Canada; DP 2010-09, 6 pages. | 2010 | DP 2010-09 |
| LECLERC, F. – HARRIS, L.B. – BÉDARD, J.H. – VAN BREEMEN, O. – GOULET, N. | Structural and stratigraphic controls on magmatic, volcanogenic and syn-tectonic mineralization in the Chapais-Chibougamau mining camp, northeastern Abitibi, Canada. Economic Geology; volume 107, pages 963-989. | 2012 | Source |
| MORIN, R. | Géologie et compilation géologique de la région de Chapais. Ministère des Ressources naturelles, Québec; MM 91-02, 66 pages, 6 plans. | 1994 | MM 91-02 |