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National Geologic Map Database

Geologic Unit: Burket

Usage:

Burket Member of Harrell Formation (PA*)
Burket Member of Harrell Shale (MD,PA)
Burket Shale (PA)
Burket Shale Member of Harrell Formation (PA,WV*)
Burket Shale Member of Rush Formation (PA)
/Burket Black Shale Member of Harrell Formation (PA*)
/Burket Black Shale Member of Harrell Shale (MD*)

[Use of simple lithic terms is preferred (CSN, 1933; ACSN, 1961, 1970; NACSN, 1983, 2005). Superfluous compound terms such as ["black shale"] should be avoided. The simplest generally acceptable term is recommended (for example, [shale]) (NACSN, 1983, Art. 30b).]


Geologic age:

Early Devonian*


Type section, locality, area and/or origin of name:

Named from exposures at Burket, a suburb of Altoona, Blair Co., central PA (Butts, 1918).


AAPG geologic province:

Appalachian basin*


For more information, please contact Nancy Stamm, Geologic Names Committee Secretary.

Asterisk (*) indicates usage by the U.S. Geological Survey. Other usages by state geological surveys.

"No current usage" (†) implies that a name has been abandoned or has fallen into disuse. Former usage and, if known, replacement name given in parentheses ( ).

Slash (/) indicates name does not conform with nomenclatural guidelines (CSN, 1933; ACSN, 1961, 1970; NACSN, 1983, 2005). This may be explained within brackets ([ ]).