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National Geologic Map Database

Geologic Unit: Bluebonnet

Usage:

Bluebonnet Member of Lake Waco Formation of Eagle Ford Group (TX)


Geologic age:

Late Cretaceous (Gulfian Provincial Epoch)


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

Type area: along Bosque escarpment from old South Bosque brickyard southwest into Moody Hills, then southward past Moody, McLennan Co., central TX (Adkins and Lozo, 1951).
Type section: opposite Baggets Station, on east side of McGregor-Moody Road (TX Highway 17), about 4.5 mi south-southeast of McGregor, McLennan Co., central TX (Adkins and Lozo, 1951).


AAPG geologic province:

Ouachita folded belt


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 ([ ]).