Huntley Mountain Formation

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The Huntley Mountain Formation (abbreviated MDhm) is a late Devonian and early Mississippian mapped bedrock unit in Pennsylvania, in the United States. The formation is composed of relatively soft grayish-red shale and olive-gray sandstone. It is located in north central Pennsylvania and can be seen at the base of the Loyalsock Creek gorge in Worlds End State Park.[1][2][3]

Geologist William E. Edmunds argues that the Huntley Mountain Formation is laterally equivalent to the Rockwell Formation (from Maryland) and the Spechty Kopf Formation. He proposes that the Pocono Formation be reinstated as "the dominantly non-red, non-marine clastic sequence between the Catskill and Mauch Chunk Formations", with the Huntley Mountain, Beckville, Burgoon, Rockwell, Mt. Carbon, and Spechty Kopf Formations demoted to the status of members of the Pocono Formation.[4]

[edit] References

  1. ^ Berg, T.M. (1981). "Atlas of Preliminary Geologic Quadrangle Maps of Pennsylvania: Eagles Mere" (PDF). Pennsylvania Department of Conservation and Natural Resources, Bureau of Topographic and Geologic Survey. Retrieved on 2008-05-21.
  2. ^ "Map 67: Tabloid Edition Explanation" (PDF). Pennsylvania Department of Conservation and Natural Resources, Bureau of Topographic and Geologic Survey.
  3. ^ Royer, Denise W. "Pennsylvania Trail of Geology, Worlds End State Park, Sullivan County, Geologic Features of Interest (Park Guide 12)" (PDF). Pennsylvania Department of Conservation and Natural Resources. Retrieved on 2007-08-28.
  4. ^ Edmunds, William E (1996). "Correlation Chart showing Suggested Revisions of Uppermost Devonian through Permian Stratigraphy, Pennsylvania" (PDF). Pennsylvania Geological Survey, Fourth Series. Retrieved on 2008-06-03.

[edit] See also

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