Pocono Formation

The Mississippian Pocono Formation (Mp) is a mapped bedrock unit in Pennsylvania, Maryland, and West Virginia It is also known as the Pocono Group in Maryland and West Virginia), [ [http://www.mgs.md.gov/esic/geo/lgdalleg.html Geologic Maps of Maryland: ] ] and the upper part of the Pocono Formation is sometimes called the Burgoon Formation in Pennsylvania. [ cite book |title= Roadside Geology of Pennsylvania |last= Van Diver |first= Bradford B. |year= 1990 |publisher= Mountain Press Publishing Company |location= Missoula, Montana |isbn= 0-87842-227-7 |pages= 83 ] The Pocono is a major ridge-former In the Ridge-and-Valley Appalachians of the eastern United Statescite web |url=http://daac.gsfc.nasa.gov/geomorphology/GEO_2/GEO_PLATE_T-12.shtml |title=Geomorphology : Chapter 2 Plate T-12 : Folded Appalachians | date = 2007-01-19 |accessdate=2008-03-16 |publisher= NASA, Goddard Earth Sciences (GES), Data and Information Services Center (DISC) |first=Steve | last = Kempler|work=|quote=The major ridge makers are the Tuscarora (T), Pocono (Po), and Pottsville (Pt) Formations.]

Description

The Pocono is a dominantly gray color with quartzitic medium to coarse-grained sandstones. The base of the Pocono Formation is marked by conglomerate.cite web |url=http://www.leo.lehigh.edu/envirosci/geology/gorge/m_p.html |title=Geology : Pocono (Mp) |accessdate=2008-03-16 |format= |work=LEO EnviroSci Inquiry|publisher=Lehigh University]

Age

Relative age dating of the Pocono places it in the lower Mississippian period. The lower boundary is with the Spetchy Kopf and Huntley Mountain Formations. In South-central Pennsylvania, the Pocono often interfingers with the Rockwell Formation. [Berg, T.M., Edmunds, W.E., Geyer, A.R. and others, compilers, (1980). Geologic Map of Pennsylvania: Pennsylvania Geologic Survey, Map 1, scale 1:250,000.]

References

ee also

*Geology of Pennsylvania