File:Nodules in siliciclastics (Vinton Member, Logan Formation, Lower Mississippian; Rt. 16 roadcut northeast of Frazeysburg, Ohio, USA) 3 (39048047330).jpg

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Nodules in siliciclastics in the Mississippian of Ohio, USA. (bedding plane view)

The Vinton Member is the uppermost of four stratigraphic units in the Mississippian-aged, siliciclastics-dominated Logan Formation of eastern Ohio. Ascending from the base, they are the Berne Conglomerate Member, the Byer Sandstone Member, the Allensville Member, and the Vinton Member. The Vinton is dominated by siltstones but sandstones and shales are also present.

The irregularly rounded masses in the rock shown here are nodules (some have been removed by erosion). They may have formed in the rock as seen here, or may have been re-exhumed during the Mississippian and redeposited on the seafloor. The brownish-colored areas are stained with iron oxide.

Stratigraphy: upper Vinton Member, upper Logan Formation, Osagean Series, upper Lower Mississippian

Locality: Trinway West 6 Outcrop - roadcut on the northwestern side of Rt. 16, 1.0 miles northeast of the Rt. 16-Old Riley Road intersection, northeast of the town of Frazeysburg & west of the town of Trinway, northwestern Muskingum County, Ohio, USA (40° 08' 41.54" North latitude, 82° 05' 06.18" West longitude)
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Source Nodules in siliciclastics (Vinton Member, Logan Formation, Lower Mississippian; Rt. 16 roadcut northeast of Frazeysburg, Ohio, USA) 3
Author James St. John

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This image was originally posted to Flickr by James St. John at https://flickr.com/photos/47445767@N05/39048047330 (archive). It was reviewed on 10 October 2019 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0.

10 October 2019

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current02:22, 10 October 2019Thumbnail for version as of 02:22, 10 October 20194,000 × 3,000 (7.71 MB)Ser Amantio di Nicolao (talk | contribs)Transferred from Flickr via #flickr2commons

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