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Kinematic Scenario for the Tennessee Salient in the Southern Appalachians

Study by James Hnat and Ben van der Pluijm from the University of Michigan explores how paleomagnetic data from remagnetized limestones and redbeds in the Tennessee Salient do not correlate with orogenic strike. Calcite twinning patterns reveal an arcuate shape seen in both the thrust-belt and foreland regions, reflecting a unique indenter scenario in the Blue Ridge. The curvature in the Tennessee salient stands out as a primary feature compared to the Pennsylvania salient.

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Kinematic Scenario for the Tennessee Salient in the Southern Appalachians

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  1. Kinematic Scenario for the Tennessee Salient, S Appalachians James Hnat and Ben van der Pluijm, University of Michigan • Paleomagnetic directions from remagnetizedlimestones and redbeds show no correlation with orogenic strike. • Calcite twinning records arcuate pattern that is the same in both the thrust-belt and the foreland. • Patterns reflect (Blue Ridge) indenter scenariothat can be duplicated in simple sandbox experiment (lower right). • In contrast to the Pennsylvania salient, curvature in the Tennessee salient is a primaryfeature.

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