Spechty Kopf Formation (PAMDsk;14)

State	Pennsylvania
Name	Spechty Kopf Formation
Geologic age	Mississippian and Devonian
Original map label	MDsk
Primary rock type	sandstone
Secondary rock type	siltstone
Other rock types	mudstone; shale; conglomerate
Lithologic constituents	Major Sedimentary > Clastic > Sandstone (Bed)Light- to olive-gray, fine- to medium- grained, crossbedded sandstone Minor Sedimentary > Clastic > Mudstone (Bed)pebbly mudstone, and laminite; arranged in crude fining-upward cycles in some places Sedimentary > Clastic > Siltstone (Bed) Incidental Sedimentary > Clastic > Conglomerate (Bed)local polymictic diamictite; conglomerate at base and in middle Sedimentary > Clastic > Mudstone > Shale (Bed)locally has grayish-red shale near top
Map references	Pennsylvania Bureau of Topographic and Geologic Survey, Department of Conservation and Natural Resources, 2001, Bedrock Geology of Pennsylvania, edition: 1.0, digital map. Retrieved from internet 9-30-2004; <http://www.dcnr.state.pa.us/topogeo/map1/bedmap.aspx> DL Data: pageoexp.zip [http://www.dcnr.state.pa.us/topogeo/map1/bedmap.aspx]
Unit references	Berg, T. M., Edmunds, W. E., Geyer, A. R., and others, compilers, 1980, Geologic map of Pennsylvania: Pennsylvania Geological Survey, 4th ser., Map 1, 2nd ed., 3 sheets, scale 1:250,000. Pennsylvania Bureau of Topographic and Geologic Survey, Department of Conservation and Natural Resources, 2001, Bedrock Geology of Pennsylvania, edition: 1.0, digital map. Retrieved from internet 9-30-2004; <http://www.dcnr.state.pa.us/topogeo/map1/bedmap.aspx> DL Data: pageoexp.zip [http://www.dcnr.state.pa.us/topogeo/map1/bedmap.aspx]
Geographic coverage	Carbon - Columbia - Dauphin - Lackawanna - Lebanon - Luzerne - Northumberland - Perry - Schuylkill