Next Article in Journal
The Compressive Strength and Microstructure of Alkali-Activated Binary Cements Developed by Combining Ceramic Sanitaryware with Fly Ash or Blast Furnace Slag
Next Article in Special Issue
Geology and U-Th-Pb Dating of the Gakara REE Deposit, Burundi
Previous Article in Journal
Multi-Stage Evolution of Gold-Bearing Hydrothermal Quartz Veins at the Mokrsko Gold Deposit (Czech Republic) Based on Cathodoluminescence, Spectroscopic, and Trace Elements Analyses
Previous Article in Special Issue
Evidence for Nb-Ta Occurrences in the Syn-Tectonic Pan-African Mayo Salah Leucogranite (Northern Cameroon): Constraints from Nb-Ta Oxide Mineralogy, Geochemistry and U-Pb LA-ICP-MS Geochronology on Columbite and Monazite
Article Menu
Issue 8 (August) cover image

Export Article

Open AccessArticle
Minerals 2018, 8(8), 336;

Geochemical Characterization, Geochronology, and Geodynamic Implications of Grenville Rare Earths Bearing Syenites, Haut-Saint-Maurice, QC, Canada

Department of Geology and Geological Engineering, Faculty of Science and Engineering, Université Laval, Quebec, QC G1V 0A6, Canada
Ministère de l’Énergie et des Ressources Naturelles, Quebec City, QC G1H 6R1, Canada
Stable Isotope Geochemistry Laboratory (GEOTOP), Montreal, QC H2X 3Y7, Canada
Author to whom correspondence should be addressed.
Received: 6 June 2018 / Revised: 14 July 2018 / Accepted: 26 July 2018 / Published: 5 August 2018
(This article belongs to the Special Issue Toward Mineral Systems for HFSE Rare Metals)
PDF [6362 KB, uploaded 14 August 2018]


The syenites in the western part of the Grenville Province in Quebec have been known since the 1990s, but few studies have been carried out on them. Over the last three years, a mapping project carried out by the Ministère de l’Énergie et des Ressources naturelles has revealed the presence of several rare earth element (REE)–bearing syenitic intrusions in this area. In this paper, we present a geodynamic model for their formation based on geochemical, thermobarometric, and geochronological data. The intrusions were emplaced between 1038 +15/−13 Ma and 1009 ± 3 Ma. The syenites can be divided into two groups: (1) an older, REE-bearing group associated with a volcanic arc and (2) a younger group with lower REE contents associated with an anorogenic event. Formation temperatures were between 898 and 1005 °C, and pressures were between 2 and 10 kbar. This model involving two intrusive periods is in conflict with the model of a large, hot, long-duration collisional orogen proposed by Rivers et al. (2009) but is consistent with more recent studies. View Full-Text
Keywords: Grenville; syenite; REE Grenville; syenite; REE

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

Supplementary material


Share & Cite This Article

MDPI and ACS Style

Côté, G.; Moukhsil, A.; Constantin, M.; David, J. Geochemical Characterization, Geochronology, and Geodynamic Implications of Grenville Rare Earths Bearing Syenites, Haut-Saint-Maurice, QC, Canada. Minerals 2018, 8, 336.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics



[Return to top]
Minerals EISSN 2075-163X Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top