Description: These paleocurrent roses from Dolly Ridge near Schefferville, Quebec show the bimodal-bipolar nature of cross-bedding in the Wishart Formation of the Labrador Trough. Like the sandstones associated with the Superior-type of granular iron formations of the Masabi and Gogebic Ranges which also show bimodal paleocurrents they were probably deposited in an environment influenced by the tides.
Photo ID: iamd1n | Photographer: SEPM Society of Economic Paleontologists and Mineralogists | Copyright © Society for Sedimentary Geology
Image source: Earth Science World Image Bank
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