Upper Cambrian Jordan Sandstone and Ordovician Oneota Dolomite, Weaver, MN

weaver_jordan_oneota

reduced file size version (more functional for some computers): weaver_jordan_oneota_reduced

Roadcut of Late Cambrian Jordan Sandstone and overlying Ordovician Oneota Dolomite along Wabasha County 26, near Weaver, MN, illustrating large-scale crossbeds and unconformable formation boundary.

Late Cambrian Jordan Sandstone, HW14 roadcut near Lewiston, MN

lewiston_jordan

reduced file size version (more functional for some computers): lewiston_jordan_reduced

Large roadcut of Late Cambrian Jordan Sandstone and overlying Ordovician Oneota Dolomite between Stockton and Lewiston, MN, illustrating low-angle bedding, intraclasts, and several scales of cross-stratification.