1
Ocean Shores - Pottsville Thunderstorm Timelapse - September 22, 2013
Ocean Shores - Pottsville Thunderstorm Timelapse - September 22, 2013
DATE: 2013/09/22::
2
Lightning Storm Formation (HD timelapse video)
Lightning Storm Formation (HD timelapse video)
DATE: 2012/04/25::
3
Timelapse Formation Cumulonimbus
Timelapse Formation Cumulonimbus
DATE: 2015/06/05::
4
Canon EOS550D  Timelapse + Storm formation at Kanva Reservoir
Canon EOS550D Timelapse + Storm formation at Kanva Reservoir
DATE: 2014/10/28::
5
Cloud formation - time lapse
Cloud formation - time lapse
DATE: 2013/07/23::
6
Formation of a Thunderstorm
Formation of a Thunderstorm
DATE: 2013/01/24::
7
Lismore Storm - Shelf Clouds Forming
Lismore Storm - Shelf Clouds Forming
DATE: 2011/10/09::
8
Time Lapse thunderstorm Verona Italy (preview)
Time Lapse thunderstorm Verona Italy (preview)
DATE: 2014/08/05::
9
North Dakota Super Cell / Thunderstorm
North Dakota Super Cell / Thunderstorm
DATE: 2012/08/22::
10
Pretoria thunderstorms
Pretoria thunderstorms
DATE: 2013/03/14::
11
P51 and PC7
P51 and PC7
DATE: 2007/07/03::
12
PennState Blue Band: arrival in Jordan
PennState Blue Band: arrival in Jordan's center
DATE: 2007/11/04::
13
Time Lapse: The Storm - Perfect sunset thunderstorm over EL Paso
Time Lapse: The Storm - Perfect sunset thunderstorm over EL Paso
DATE: 2010/05/28::
14
Thunderhead Timelapse
Thunderhead Timelapse
DATE: 2014/07/05::
15
boise time lapse thunderheads.mov
boise time lapse thunderheads.mov
DATE: 2011/05/16::
16
Thunder Head at Lake Arcadia
Thunder Head at Lake Arcadia
DATE: 2013/07/12::
17
accept your fate - Wolfgang - CD Release Concert Gangart @Moods, 14.12.2014
accept your fate - Wolfgang - CD Release Concert Gangart @Moods, 14.12.2014
DATE: 2014/12/17::
18
Anthracite Coal Mining circa 1920
Anthracite Coal Mining circa 1920
DATE: 2015/03/27::
19
Anthracite Coal Mining: "Black Sunlight" circa 1920s Bray Studios
Anthracite Coal Mining: "Black Sunlight" circa 1920s Bray Studios
DATE: 2013/04/07::
20
Hawaiian Islands Brewing Company  Honolulu, Hawaii
Hawaiian Islands Brewing Company Honolulu, Hawaii
DATE: 2014/06/25::
21
More P51 and PC7
More P51 and PC7
DATE: 2007/07/03::
22
Thunderstorm Timelapse
Thunderstorm Timelapse
DATE: 2013/07/16::
23
April 29, 2013 Afternoon Thunderstorm Time Lapse
April 29, 2013 Afternoon Thunderstorm Time Lapse
DATE: 2013/04/29::
24
St. Mary
St. Mary's County Volunteer Fire & EMS 2011
DATE: 2011/01/25::
25
bituminous coal
bituminous coal
DATE: 2014/03/25::
26
Dallas Thunderstorm March 27, 2014 Time lapse
Dallas Thunderstorm March 27, 2014 Time lapse
DATE: 2014/03/27::
27
The Penn State Blue Band parade march to the tailgate show, September 7, 2013.
The Penn State Blue Band parade march to the tailgate show, September 7, 2013.
DATE: 2013/09/07::
28
Isolated Thunderstorm At Sunset (Virga) (Santa Monica, CA)
Isolated Thunderstorm At Sunset (Virga) (Santa Monica, CA)
DATE: 2011/10/02::
29
(HD) 60163 Tornado - Easter at the Nene Valley Railway - 08/04/2012
(HD) 60163 Tornado - Easter at the Nene Valley Railway - 08/04/2012
DATE: 2012/04/09::
30
Narberth PA Fireworks 2006
Narberth PA Fireworks 2006
DATE: 2006/07/04::
31
Portsmouth High Band - Hail to the Varsity
Portsmouth High Band - Hail to the Varsity
DATE: 2012/06/03::
32
Joseph  S Clark Majorettes 2014
Joseph S Clark Majorettes 2014
DATE: 2014/01/22::
33
Scottish Vet Parade
Scottish Vet Parade
DATE: 2007/11/02::
34
Time Lapse Thunderstorm
Time Lapse Thunderstorm
DATE: 2013/09/29::
35
Penn State Blue Band Halftime Show featuring a solo performance by feature twirler Matt Freeman.
Penn State Blue Band Halftime Show featuring a solo performance by feature twirler Matt Freeman.
DATE: 2013/11/24::
36
Weird lightning- clear sky...
Weird lightning- clear sky...
DATE: 2014/06/13::
37
Hazard Band of Gold: 1991 KMEA State Finals
Hazard Band of Gold: 1991 KMEA State Finals
DATE: 2014/02/03::
38
Pulaski Academy
Pulaski Academy's Championship Offense -Techniques and Strategy for Successful On-Side Kicks
DATE: 2012/02/21::
39
Blue White Tailgate Blue White Game: Spring 2014
Blue White Tailgate Blue White Game: Spring 2014
DATE: 2014/04/11::
40
Blackwater Falls, Tucker County West Virginia.
Blackwater Falls, Tucker County West Virginia.
DATE: 2012/04/05::
41
U.S. Coast Guard Helicopter Rescue at Fogarty Beach State Park-10-11-2014
U.S. Coast Guard Helicopter Rescue at Fogarty Beach State Park-10-11-2014
DATE: 2014/10/11::
42
A look inside the Pro Football Hall of Fame
A look inside the Pro Football Hall of Fame's selection process
DATE: 2011/01/28::
43
3/1/14 - Cyclone hits Los Angeles Freq elv emf vlf emr haarp 3:45pm
3/1/14 - Cyclone hits Los Angeles Freq elv emf vlf emr haarp 3:45pm
DATE: 2014/03/01::
44
Ufo australian beach august 2012
Ufo australian beach august 2012
DATE: 2012/08/07::
45
Texas A&M - A look at the Corps of Cadets and Aggie band on gameday 101913
Texas A&M - A look at the Corps of Cadets and Aggie band on gameday 101913
DATE: 2013/10/20::
46
Blender: Heavy Thunderstorm 2.0
Blender: Heavy Thunderstorm 2.0
DATE: 2014/03/31::
47
Kansas Thunderstorm Time lapse: Utica to Gove City, KS (6/4/2015)
Kansas Thunderstorm Time lapse: Utica to Gove City, KS (6/4/2015)
DATE: 2015/06/07::
48
Larkin High School Band 10/5/2012 "Salute To Freedom, Hail To The Varsity"
Larkin High School Band 10/5/2012 "Salute To Freedom, Hail To The Varsity"
DATE: 2012/10/11::
49
Fort Lauderdale Medical Malpractice Lawyer & Attorney - Florida
Fort Lauderdale Medical Malpractice Lawyer & Attorney - Florida
DATE: 2015/01/21::
50
Lake Havasu Channel Desert Storm --Time Lapse
Lake Havasu Channel Desert Storm --Time Lapse
DATE: 2013/09/05::
NEXT >>
RESULTS [51 .. 101]
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Pottsville Formation
Stratigraphic range: Pennsylvanian
Pottsville Formation Worlds End.jpg
Typical Pottsville Formation at Worlds End State Park, Sullivan County, Pennsylvania
Type sedimentary
Sub-units see Stratigraphy section
Underlies Brookville Coal of Allegheny Formation (OH, PA)[1]
Overlies Mauch Chunk Formation
Lithology
Primary sandstone, conglomerate
Other limestone, shale, coal
Location
Region Appalachian Mountains
Extent Pennsylvania, Maryland, West Virginia, Ohio
Type section
Named for Pottsville, Pennsylvania
Named by J. P. Lesley, 1876[2]
Blackwater Falls in West Virginia. The major ledge is Connoquenessing sandstone of the Middle Pottsville Formation.

The Pennsylvanian Pottsville Formation is a mapped bedrock unit in Pennsylvania, western Maryland, West Virginia, and Ohio. The formation is also recognized in Alabama. It is a major ridge-former in the Ridge-and-Valley Appalachians of the eastern United States.[3] The Pottsville Formation is conspicuous at many sites along the Allegheny Front, the eastern escarpment of the Allegheny or Appalachian Plateau.

Description[edit]

The Pottsville Formation consists of a gray conglomerate, fine to coarse grained sandstone, and is known to contain limestone, siltstone and shale, as well as anthracite and bituminous coal.[4][5] It is considered a classic orogenic molasse.[6] The formation was first described from a railroad cut south of Pottsville, Pennsylvania.[4]

Nomenclature and Stratigraphy[edit]

The relationship to the term "Pottsville" and actual lithologic units is complex. Most fundamentally, the unit may be considered a Formation or a Group.

As a Formation, the Pottsville may encompass the following members depending on the state in which it occurs: Alton Coal Member, Anthony Shale Member, Bear Run Member, Bedford Clay Bed, Boggs Member, Boyles Sandstone Member, Bremen Sandstone Member, Brookville Clay Member, Camp Branch Sandstone Member, Campbell Ledge Shale Member, Chestnut Sandstone Member, Connoquenessing Sandstone Member, Dundee Sandstone Member, Flint Ridge Clay Bed or Flint Ridge Shale Member, Harrison Member, Homewood Sandstone Member, Huckleberry Clay Bed, Kanawha Member, Lick Creek Sandstone Member, Lowellville Limestone Member, Lower Mercer Limestone Member, Massilon Sandstone Member, McArthur Member, Mercer Member, Middle Mercer Shale Member, Mount Savage Clay Bed, Olean Conglomerate Member of Olean Sandstone Member, Pine Sandstone Member, Poverty Run Member, Razburg Sandstone Member, Rocky Ridge Sandstone Member, Schuylkill Member, Sciotoville Clay Member, Shades Sandstone Member, Sharon Coal Bed, Sharon Member, Sharp Mountain Member, Straight Ridge Sandstone Member, Straven Conglomerate Member, Tionesta Clay Bed, Tumbling Run Member, Upper Mercer Limestone Member or Upper Mercer Bed, Vandusen Shale Member, Wolf Ridge Sandstone Member.[7]

As a Group, the Pottsville may encompass the following Formations depending on the state in which it occurs: Connoquenessing Formation, Curwensville Formation, Elliott Park Formation, Gurnee Formation, Hance Formation, Homewood Formation or Homewood Sandstone, Mercer Formation, New River Formation, Olean Conglomerate or Olean Formation, Pocahontas Formation, Schuylkill Formation, Sharon Formation or Sharon Sandstone, Sharp Mountain Formation, Tumbling Run Formation.[7]

The Pottsville was previously mapped in the Illinois basin as well at the Formation level, but was renamed the Tradewater Formation in 1997.[8]

Fossils[edit]

A 1.3-m interval at the base of the Pottsville in the Broad Top basin in Pennsylvania contains both marine invertebrates and plant fossils of middle Morrowan age.[9]

Age[edit]

Relative age dating of the Pottsville places it in the early to middle Pennsylvanian period.

Notable exposures[edit]

Pottsville Formation boulder in the Rock Garden in Worlds End State Park

Pennsylvania:

Maryland:

West Virginia:

References[edit]

  1. ^ Rice, C.L., Hiett, J.K., and Koozmin, E.D., 1994, Glossary of Pennsylvanian stratigraphic names, central Appalachian basin, IN Rice, C.L., ed., Elements of Pennsylvanian stratigraphy, central Appalachian basin: Geological Society of America Special Paper, 294, p. 115-155.
  2. ^ Lesley, J.P., 1876, The Boyd's Hill gas well at Pittsburgh; Appendix E: Pennsylvania Geological Survey Report of Progress, 2nd series, v. L, p. 221-227.
  3. ^ Kempler, Steve (2007-01-19). "Geomorphology : Chapter 2 Plate T-12 : Folded Appalachians". NASA, Goddard Earth Sciences (GES), Data and Information Services Center (DISC). Retrieved 2008-03-16. The major ridge makers are the Tuscarora (T), Pocono (Po), and Pottsville (Pt) Formations. 
  4. ^ a b "GeoLex: Geologic Unit: Pottsville". Retrieved 2011-04-22. 
  5. ^ "Geology : Pottsville (Pp)". LEO EnviroSci Inquiry. Lehigh University. Retrieved 2008-03-16. 
  6. ^ Robinson, R.A.J.; Prave, A.R. (1995). "Cratonal contributions to a" classic" molasse; the Carboniferous Pottsville Formation of eastern Pennsylvania revisited". Geology 23 (4): 369–372. Bibcode:1995Geo....23..369R. doi:10.1130/0091-7613(1995)023<0369:CCTACM>2.3.CO;2. Retrieved 2008-04-10. The Carboniferous Pottsville Formation of eastern Pennsylvania in the central Appalachian foreland basin is considered a classic orogenic molasse … 
  7. ^ a b http://ngmdb.usgs.gov/Geolex/NewUnits/unit_3393.html USGS GEOLEX database, Geologic Unit: Pottsville
  8. ^ Harrison, R.W., 1997, Bedrock geologic map of the St. Louis 30' x 60' quadrangle, Missouri and Illinois: U.S. Geological Survey Miscellaneous Investigations Series Map, I-2533, 7 p., 2 sheets, scale 1:100,000 [1]
  9. ^ Edmunds, W.E., 1992, Early Pennsylvanian (middle Morrowan) marine transgression in south-central Pennsylvania: Northeastern Geology, v. 14, no. 4, p. 225-231.
  10. ^ "Maryland's Geologic Features: Dans Rock, Allegany County". Retrieved 2011-04-22. 

See also[edit]


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