Characterizing the supra- and subsolidus processes that generated the Current PGE-Cu-Ni deposit, Thunder Bay North Intrusive Complex, Canada: insights from trace elements and multiple S isotopes of sulfides.

ABSTRACT: The Current deposit is hosted by serpentinized peridotite that intruded rocks of the Quetico Subprovince in the Midcontinent Rift, and is subdivided into three morphologically distinct regions - the shallow and thin Current-Bridge Zone in the northwest, the deep and thick 437-Southeast Anomaly (SEA) Zone in the southeast, and the thick Beaver-Cloud Zone in the middle. The magma parental to the Current deposit became saturated in sulfide as a result of the addition of external S from at least two sources - a deep source characterized by high Δ³³S (< 3‰) values, and a shallow source, potentially the Archean metasedimentary country rocks, characterized by low Δ³³S (< 0.3‰). Variations in Δ³³S-S/Se-Cu/Pd values indicate that the contamination signatures were la

SUBMITTER: Brzozowski M 

PROVIDER: S-EPMC10598094 | biostudies-literature | 2023

REPOSITORIES: biostudies-literature