U.S. Geological Survey Home AASG Logo USGS HOME CONTACT USGS SEARCH USGS
National Geologic Map Database
Geologic Unit: Delaney
Search archives
Map showing publication footprint
  • Usage in publication:
    • Delaney gravel
  • Modifications:
    • Original reference
  • Dominant lithology:
    • Flint
    • Chert
    • Quartz
    • Feldspar
  • AAPG geologic province:
    • Ouachita folded belt
Publication:

Mathis, R.W., 1944, Heavy minerals of Colorado River terraces of Texas: Journal of Sedimentary Petrology, v. 14, no. 2, p. 86-93. [Available online, with subscription, from AAPG archives: http://www.aapg.org/datasystems or http://search.datapages.com]


Summary:

Pg. 87-88. Delaney gravel. Scattered gravel deposit consisting of flint, chert, quartz, and some feldspar pebbles. Lower than Uvalde formation. [Age is Quaternary.]
Tops a hill 245 feet above Colorado River level on Delaney Ranch, along Bee Caves Road, 3 mi east of Austin, Travis Co., central TX. Also occurs along ridge between Barton Creek and Fredericksburg Road and southeast of mouth of Bull Creek.

Source: US geologic names lexicon (USGS Bull. 1200, p. 1077).


Map showing publication footprint
  • Usage in publication:
    • Delaney gravel
  • Modifications:
    • Redefined
  • Dominant lithology:
    • Flint
    • Chert
    • Quartz
    • Feldspar
    • Limestone
  • AAPG geologic province:
    • Ouachita folded belt
Publication:

Weeks, A.W., 1945, Oakville, Cuero, and Goliad formations of Texas Coastal Plain between Brazos River and Rio Grande: American Association of Petroleum Geologists Bulletin, v. 29, no. 12, p. 1721-1732. [Available online, with subscription, from AAPG archives: http://www.aapg.org/datasystems or http://search.datapages.com]


Summary:

Pg. 1705. Mathis described Delaney gravel, located west of Austin and occupying a level between the Uvalde and Asylum deposits. Since abundant limestone material is present in Uvalde and younger deposits, Mathis' omission of limestone pebbles in discussion of the Delaney suggests that either he failed to see them or that the Delaney came down from higher levels as erosion progressed and therefore is not in place.

Source: US geologic names lexicon (USGS Bull. 1200, p. 1077).


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 ([ ]).

Accessibility FOIA Privacy Policies and Notices

USA Gov U.S. Department of the Interior | U.S. Geological Survey
Supported by the National Cooperative Geologic Mapping Program
Page Contact Information: Personnel
Page Last Modified: Thu 04 Apr 2024 04:21:23 PM MDT