English: Black shales from the Devonian of Indiana, USA. (on display in New Albany, Indiana during the 24-25 September 2004 annual field conference of the Great Lakes Section, Society of Economic Paleontologist and Mineralogists; up-section is to the left; from the first red dot at upper left to the right margin of the core is ~0.34 meters of section)

This is a core through part of the New Albany Shale, a Devonian-aged formation in Kentucky, Indiana, Illinois, and eastern Missouri. The unit is dominated by dark-colored marine mudshales of Late Devonian age. These black shales were deposited in a moderately deep, anoxic seafloor environment. This was a widespread lithofacies during the Late Devonian's Global Anoxia Event. The New Albany Shale is equivalent to the Ohio Shale, the Antrim Shale, and the Chattanooga Shale in surrounding states.

The New Albany Shale's member terminology varies from region to region. In southwestern Indiana, where this core was drilled, the New Albany consists of (from the base upward): Blocher Member, Selmier Member, Morgan Trail Member, Camp Run Member, and Clegg Creek Member.

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Caption that accompanied this particular core display:

Core interval from the Camp Run Member. In contrast to the [underlying] Selmier Member, the Camp Run is generally composed of thicker beds of black to dark-brown shale separated by thinner beds of gray to dark-gray/brown bioturbated shale. . . . Note burrows filled with gray shale in underlying black shale. [~middle of the photo - click on the picture once or twice to zoom in]

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Stratigraphy: Camp Run Member, New Albany Shale, Upper Devonian

Locality: drill core (~630 to 630.45 meters depth), Kavanaugh # 1-3 well, south-southwest of the town of Montgomery, Barr Township, Daviess County, southwestern Indiana, USA (38° 38' 20" North latitude, 87° 03' 43" West longitude)