Search

Rare Earth Elements (REE) and several trace elements abundances in mussel's shells collected along the St. Lawrence River, the Estuary, and the Gulf of St. Lawrence (EGSL) reveal coherent chemical variations, with a sharp contrast between freshwater and seawater bivalves. In freshwater mussel's shells, Rare Earth Elements and Y (REY) patterns are rather flat. Their Mn and Ba concentrations are higher than those of EGSL mussel shells, which are much richer in Sr. Shale-normalized REY abundances in mussel's shells from the EGSL show positive anomalies in La and Y and well-marked negative anomalies in Ce, reflecting those of seawater. Prince Edward Island shells show light REE depletion relative to PAAS, positive La and Y anomalies, and negative Ce anomalies. Our data confirm the lack of detectable Gd pollution in the St. Lawrence River and in the EGSL, as well as Pb pollution at the mouth of the Saguenay Fjord and near Rimouski., Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2024. Published by Elsevier Ltd.)

Pivoting on the process of reserve replacement undertaken by key oil transnationals in Canada as a spatial fix for capital, the article considers how individual firms employ formal review processes to project their strategic interests. The proponent firm shapes, through its own participation, the regulatory terrain on which competitors will subsequently operate. In Alberta's tar sands, the oil industry's reserve replacement process serves as a spatial–temporal fix for capital, and the review process and tribunal acts as a complementary socio-ecological fix – restricting social/affective claims, including First Nations resistance, to an official tribunal setting. In seeking formal approval to replace declining oil and gas reserves with unconventionals, proponent firms claim investor security, while social movement opponents emphasize risk and insecurity arising from carbon-intensive, frontier extraction. In the case of the contested Shell Jackpine Mine Expansion Joint Review Panel, as in other environmental assessment processes in Alberta, the proponent firm and state representatives employ the oxymoronic term ‘resource sterilization’ to describe ecological protection. ‘Resource sterilization’ offers a discursive representation of how capital's spatio-temporal fix in unconventionals is facilitated through the terms of the formal review process, in which social claims are muted. [ABSTRACT FROM AUTHOR]