Devonian Mahantango Formation is a mapped bedrock unit in Pennsylvania, West Virginia, and Maryland. It is named for the North branch of the Mahantango Creek...
10 KB (957 words) - 18:19, 8 August 2024
Pennsylvania Mahantango Creek (Snyder County), a tributary of the Susquehanna River in Snyder and Juniata counties, in Pennsylvania Mahantango Formation, a mapped...
564 bytes (105 words) - 13:37, 10 May 2014
Hamilton Group (redirect from Hamilton Formation)
shale with some sandstone. There are two main formations encompassed by the group: the Mahantango Formation and the Marcellus Shale. In southwestern Virginia...
15 KB (1,281 words) - 15:29, 2 April 2024
shales near the middle of the Mahantango Formation are classified by geologists as slope-formers. Marcellus and Mahantango shale beds dipping at 60° to...
102 KB (10,675 words) - 23:40, 16 July 2024
Knox Supergroup (redirect from Chepultepec Formation)
The Knox Supergroup, also known as the Knox Group and the Knox Formation, is a widespread geologic group in the Southeastern United States. The age is...
15 KB (1,220 words) - 22:19, 3 August 2024
Salina Group (redirect from Wabash Formation)
The Salina Group or Salina Formation is a Late Silurian-age, Stratigraphic unit of sedimentary rock that is found in Northeastern and Midwestern North...
14 KB (1,300 words) - 01:07, 7 March 2024
The Monongahela Formation is a geologic formation in West Virginia, Pennsylvania, Ohio, and Maryland. It is dated to the Carboniferous period. The top...
3 KB (154 words) - 23:53, 22 February 2024
West Falls Group (redirect from West Falls Formation)
the Portage Group. The West Falls formation is bounded above by the Java Formation and below by the Sonyea Formation. It comprises the Angola Shale and...
6 KB (459 words) - 18:52, 25 May 2024
The Rhinestreet Shale is a geologic formation in the Appalachian Basin. It dates back to the Devonian period. The Rhinestreet is an organic or Black Shale...
3 KB (212 words) - 20:03, 25 May 2024
include the Catskill Formation, the Marcellus Shale, the Helderburg Formation, the Mahantango Formation, the Oriskany Formation, the Marine Beds, and...
25 KB (1,971 words) - 14:52, 26 April 2024