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National Geologic Map Database

Geologic Unit: Byham

Usage:

No current usage.
(Rocks of †Byham Limestone Member (PA) reallocated to Meadville Shale Member of Cuyahoga Formation. See Meadville.)


Geologic age:

Early Mississippian (Tournaisian; Kinderhookian)


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

Type locality: in Buchanan's Ravine, north of Shaw School (Buchanan Station) and about 1.5 mi north-northwest of Byham School, south of Meadville, Crawford Co., northwestern PA (Caster, 1934).


AAPG geologic province:

Appalachian basin


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

Asterisk (*) indicates published by U.S. Geological Survey authors.

"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 conflicts with nomenclatural guidelines (CSN, 1933; ACSN, 1961, 1970; NACSN, 1983, 2005, 2021). May be explained within brackets ([ ]).