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National Geologic Map Database

Geologic Unit: Rickenbach

Usage:

Rickenbach Dolomite of Beekmantown Group (PA*,NJ*)
Rickenbach Formation of Beekmantown Group (PA,NJ)
Rickenbach Member of Kittattiny Limestone (NJ)


Subunits:

Hope Member, lower dolomite member, and Crooked Swamp dolomite facies (NJ).


Geologic age:

Ordovician, Early*
Ibexian, middle*
Ibexian, early*


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

Type section (composite): lower member in cut along west side of Reading RR tracks beginning about 1,000 ft south of crossing at Rickenbach, Berks Co., southeastern PA; upper member in southwest bank of Schuylkill River, 0.5 mi east by northeast of Epler School (Hobson, 1957).


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 ([ ]).