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Provenance and tectonic setting of the Jacobsville sandstone, from Ironwood to Keweenaw Bay, Michigan Open Access Deposited

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Date Uploaded: 12/12/2016
Date Modified: 12/12/2016

The Middle Proterozoic Jacobsville Sandstone, located on the upper peninsula, Michigan, is the youngest rift- related sedimentary unit in the 1.1 Ga Midcontinent rift. Although outcrops of the Jacobsville Sandstone along the Lake Superior shoreline and in river gorges are well studied, these outcrops represent stratigraphically only the upper 300-400 feet of the estimated 9,000 feet thick Jacobsville Sandstone. I used drill cores and newly-studied outcrop samples; 1) to characterize stratigraphically continuous sections; 2) to compare the Jacobsville Sandstone in subsurface with the Jacobsville Sandstone in outcrop; 3) to identify lateral and vertical variations in texture and petrographic composition within the Jacobsville Sandstone; and 4) to determine petrographic provenance of the Jacobsville Sandstone.

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  • Legacy Identifier: http://hdl.handle.net/2374.UC/733209

    This thesis was sent to UC Libraries by Dr. J. Barry Maynard, Department of Geology, in April 2014. In the same month, Carol Gundrum of the Graduate School approved of its inclusion in the Digital Resource Commons.

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