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National Geologic Map Database

Geologic Unit: Lafayette

Usage:

Lafayette Member of Epler Formation (NJ)


Geologic age:

Early Ordovician


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

Not stated, although unit is described in measured sections. Origin of name not stated by authors, but probably named from town of Lafayette, Sussex Co., NJ (Markewicz and Dalton, 1977).


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 ([ ]).