By: rkohrs
Image: Alan Pitts
⧉
License:
Copyright, All Rights Reserved
Uploaded: 14 Jan 2020
Last Updated: 7 May 2020
472 megapixels
47,904 x 9,860 pixels
159.7 in X 32.9 in at 300dpi
9 pixels per inch
This outcrop is located along the newly constructed portions of West Virginia Route 55 (Corridor H) west of the town of Moorefield. These folded beds are in the upper Silurian Tonoloway Formation. The Tonoloway Formation is a 400-600 foot package of gray, medium to thick bedded limestone and dolomitic limestone with tan shale and minor amounts of thinly bedded sandstone. This unit is interpreted as a Devonian tidal flat environment with mud-cracks and halite salt casts. Well developed halite salt casts can be found in several of the weathered shale intervals. For a closer look at these Halite clasts see this macro gigapan http://gigapan.com/gigapans/142740 Geologists interpret this period in earth history as time of tectonic peace during the middle of the paleozoic. These passive margin sediments were originally deposited horizontally during the Silurian lithified and then folded during a the Alleghanian Orogeny in the Pennsylvanian - Permian. Image made as part of Mid Atlantic Geo-Imagery Collection (MAGIC)
By: rkohrs
Image: Alan Pitts
⧉
License:
Copyright, All Rights Reserved
Uploaded: 14 Jan 2020
Last Updated: 7 May 2020
268 megapixels
35,032 x 7,636 pixels
116.8 in X 25.5 in at 300dpi
8 pixels per inch
This outcrop is located along the new portions of West Virginia Route 55 west of the town of Moorefield. This outcrop is the on the north side of rt 55 and matches a gigapan set taken from the opposite side of highway: http://www.gigapan.com/gigapans/103089 http://www.gigapan.com/gigapans/103090 This example of tectonic folding is seen in Silurian/Devonian limestones siltstones and shales (likely) from the Tonoloway Formation. Geologists interpret this sequence of rocks as evidence of a period of tectonic peace during the middle of the paleozoic. View of camera is looking roughly south. Deformation of these passive margin sediments occured long after deposition in the Alleghenian Orogeny when Africa crashed into the North American Plate to form Pangea Image made as part of the Mid Atlantic Geo-Imagery Collection (MAGIC)