1
Ocean Shores - Pottsville Thunderstorm Timelapse - September 22, 2013
Ocean Shores - Pottsville Thunderstorm Timelapse - September 22, 2013
DATE: 2013/09/22::
2
view of girardville
view of girardville
DATE: 2009/10/23::
3
Chinese lanterns in Pottsville Pennsylvania
Chinese lanterns in Pottsville Pennsylvania
DATE: 2013/10/29::
4
Anthracite Coal Mining: "Black Sunlight" circa 1920s Bray Studios
Anthracite Coal Mining: "Black Sunlight" circa 1920s Bray Studios
DATE: 2013/04/07::
5
Canon EOS550D  Timelapse + Storm formation at Kanva Reservoir
Canon EOS550D Timelapse + Storm formation at Kanva Reservoir
DATE: 2014/10/28::
6
Amazing thunderstorm formation - Time Lapse
Amazing thunderstorm formation - Time Lapse
DATE: 2014/10/26::
7
Cloud formation - time lapse
Cloud formation - time lapse
DATE: 2013/07/23::
8
Formation of a Thunderstorm
Formation of a Thunderstorm
DATE: 2013/01/24::
9
Lismore Storm - Shelf Clouds Forming
Lismore Storm - Shelf Clouds Forming
DATE: 2011/10/09::
10
Stanford vs. Washington State College, 1940
Stanford vs. Washington State College, 1940
DATE: 2013/09/19::
11
Time Lapse: The Storm - Perfect sunset thunderstorm over EL Paso
Time Lapse: The Storm - Perfect sunset thunderstorm over EL Paso
DATE: 2010/05/28::
12
Sky Time Lapse HD - Clouds Rolling over the African Bush Time Lapse HD
Sky Time Lapse HD - Clouds Rolling over the African Bush Time Lapse HD
DATE: 2013/04/24::
13
Creepy Chicago Bears mascot (PG warning)
Creepy Chicago Bears mascot (PG warning)
DATE: 2013/01/01::
14
November 20 2008 - Severe thunderstorm east of Warwick QLD
November 20 2008 - Severe thunderstorm east of Warwick QLD
DATE: 2008/11/20::
15
PennState Blue Band: arrival in Jordan
PennState Blue Band: arrival in Jordan's center
DATE: 2007/11/04::
16
Pretoria thunderstorms
Pretoria thunderstorms
DATE: 2013/03/14::
17
Thunder Head at Lake Arcadia
Thunder Head at Lake Arcadia
DATE: 2013/07/12::
18
Early Stages Of A Thunderstorm - June 2, 2013 Cumulonimbus Cloud
Early Stages Of A Thunderstorm - June 2, 2013 Cumulonimbus Cloud
DATE: 2013/06/02::
19
Anthracite Coal Mining circa 1920
Anthracite Coal Mining circa 1920
DATE: 2015/03/27::
20
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::
21
Supercell Thunderstorm Time Lapse - Ripley looking towards the Gold Coast 15/11/13 [HD]
Supercell Thunderstorm Time Lapse - Ripley looking towards the Gold Coast 15/11/13 [HD]
DATE: 2013/11/15::
22
Thunderhead Timelapse
Thunderhead Timelapse
DATE: 2014/07/05::
23
Ice cream Truck for Rent for vinyl covering marketing campaigns
Ice cream Truck for Rent for vinyl covering marketing campaigns
DATE: 2013/03/14::
24
Hawaiian Islands Brewing Company  Honolulu, Hawaii
Hawaiian Islands Brewing Company Honolulu, Hawaii
DATE: 2014/06/25::
25
boise time lapse thunderheads.mov
boise time lapse thunderheads.mov
DATE: 2011/05/16::
26
Thunderstorm Time Lapse
Thunderstorm Time Lapse
DATE: 2013/08/30::
27
Liberty High School Grenadier Band
Liberty High School Grenadier Band
DATE: 2006/09/28::
28
1937 NFL Championship, Rocket Skater... "1937 News Digest" Pathegrams No 2 Pathe Newsreel
1937 NFL Championship, Rocket Skater... "1937 News Digest" Pathegrams No 2 Pathe Newsreel
DATE: 2013/03/13::
29
three types of coal
three types of coal
DATE: 2012/09/18::
30
To the Night
To the Night
DATE: 2010/01/19::
31
April 29, 2013 Afternoon Thunderstorm Time Lapse
April 29, 2013 Afternoon Thunderstorm Time Lapse
DATE: 2013/04/29::
32
2011-12 Storm Time-Lapse -- 25 February 2012
2011-12 Storm Time-Lapse -- 25 February 2012
DATE: 2012/02/25::
33
EARLY CHRISTIAN CHURCH HISTORY PROVES ROMAN CATHOLICISM FALSE
EARLY CHRISTIAN CHURCH HISTORY PROVES ROMAN CATHOLICISM FALSE
DATE: 2011/04/23::
34
St. Mary
St. Mary's County Volunteer Fire & EMS 2011
DATE: 2011/01/25::
35
Omaha Thunderstorm Time-Lapse
Omaha Thunderstorm Time-Lapse
DATE: 2014/05/13::
36
Cloud Timelapse - Featuring Stormy Skies
Cloud Timelapse - Featuring Stormy Skies
DATE: 2009/07/25::
37
Isolated Thunderstorm At Sunset (Virga) (Santa Monica, CA)
Isolated Thunderstorm At Sunset (Virga) (Santa Monica, CA)
DATE: 2011/10/02::
38
Thunderstorm Timelapse
Thunderstorm Timelapse's/Lightning and Slow Mo lightning
DATE: 2013/05/10::
39
BEAUTIFUL supercell time lapse from Booker, Texas!
BEAUTIFUL supercell time lapse from Booker, Texas!
DATE: 2013/06/11::
40
(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::
41
Hail to varsity
Hail to varsity
DATE: 2012/09/21::
42
Narberth PA Fireworks 2006
Narberth PA Fireworks 2006
DATE: 2006/07/04::
43
Wellington thunderstorm timelapse
Wellington thunderstorm timelapse
DATE: 2014/12/29::
44
Portsmouth High Band - Hail to the Varsity
Portsmouth High Band - Hail to the Varsity
DATE: 2012/06/03::
45
Joseph  S Clark Majorettes 2014
Joseph S Clark Majorettes 2014
DATE: 2014/01/22::
46
Lisbon Lilac Festival Firetruck Parade
Lisbon Lilac Festival Firetruck Parade
DATE: 2011/05/29::
47
Time Lapse Thunderstorm
Time Lapse Thunderstorm
DATE: 2013/09/29::
48
Thunderstorms time-lapses over Florida
Thunderstorms time-lapses over Florida
DATE: 2014/07/14::
49
Weird lightning- clear sky...
Weird lightning- clear sky...
DATE: 2014/06/13::
50
Clear sky after a thunderstorm Indiana
Clear sky after a thunderstorm Indiana
DATE: 2012/07/19::
NEXT >>
RESULTS [51 .. 101]
From Wikipedia, the free encyclopedia
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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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