Pg. 25-26, 84, pl. 5. Goose Lake clay. Composite of two or more underclays of lower Carbondale and upper Pottsville age. Occurs below Colchester coal. Approximately equivalent to Cheltenham fire clay of Missouri. Age is Pennsylvanian.
Named from occurrence near Goose Lake, east Grundy Co., northeastern IL. Used as a refractory clay.
Source: US geologic names lexicon (USGS Bull. 1200, p. 1546).
Pg. 33. Goose Lake clay is trade name and not recognized as part of Illinois stratigraphic nomenclature.
Source: US geologic names lexicon (USGS Bull. 1200, p. 1546).
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 ( ).
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