North American Central Plains conductivity anomaly within the Trans- Hudson Orogen in northern Saskatchewan, Canada

A. G. Jones

Research output: Contribution to journalArticlepeer-review

49 Citations (Scopus)

Abstract

Magnetotelluric data acquired across the Paleoproterozoic Trans-Hudson orogen, northern Saskatchewan, image one of the world's longest crustal features, the North American Central Plains conductivity anomaly. Modeling shows the anomaly at this latitude to comprise two distinct, westward-dipping bodies of high conductivity lying structurally above a late collisional feature, the Guncoat thrust. The anomaly is identified with interleaved, biotitic, metasedimentary rocks of the Nemeiben zone and Cree Lake belt and is interpreted to have been thrust beneath the margin during collision of the La Ronge arc with the Rae-Hearne continent via westward-direction subduction. -from Authors

Original languageEnglish
Pages (from-to)1027-1030
Number of pages4
JournalGeology
Volume21
Issue number11
DOIs
Publication statusPublished - 1993
Externally publishedYes

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