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This study examines the trace element and REE+Y geochemistry of a thin pink dolomite in the Scout Mountain Member of the Pocatello Formation (Idaho). The pink dolomite meets the criteria of a cap carbonate and provides an opportunity to examine ocean redox state and hydrothermal inputs on the margin of Laurentia at the terminal stages of the Sturtian glaciations. Here, high resolution chemostratigraphy...
The Arisaig Basin in Nova Scotia, Canada provides a regional sedimentary record of an Early Silurian basin subsidence on the microcontinent of Avalon. The lower members of the Arisaig Group (Beechill Cove and Lower Ross Brook Formations) are likely to be deposited in a basin formed during syn- to post-collisional rifting/subsidence driven by the collision of Avalon and Baltica. The evolution of this...
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