USGS Visual Identifier
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Geologic Unit: Haynesville

Haynesville Formation (LA*,AL*,AR*,FL*,MS*,TX*)
Haynesville Formation of Louark Group (subsurface of LA,TX)

Jurassic, Late*

Geologic Province:
Arkla basin*
Mid-Gulf Coast basin*
Gulf Coast basin*

Areal Extent:

Type Locality:
Type area (subsurface): wells in Haynesville oil field, Claiborne Co., northern LA (Goebel, 1950).
["Reference section"] (subsurface): Hunt Oil Company No. 1 well, sec. 3, T. 23 N., R. 7 W., Claiborne Parish, LA (Goebel, 1950).

Buckner Member (AL*,MS*,AR)

Unit Name History:
[Please note: only the Dickinson (1968) and Mancini and others (1990) references include synopses here. Philpott and Hazzard (1949) and Goebel (1950) references taken from US geologic names lexicon, USGS Bull. 1200 (p. 1712). Murray (1961) reference taken from US geologic names lexicon, USGS Bull. 1350 (entry under Louark, p. 441). Miller (1982) reference has yet to be added from the GNC index card files. Until then, feel free to contact us if you would like the complete bibliographic citation.]
Shown on chart with basal Buckner Mmeber (T.H. Philpott and R.T. Hazzard, 1949, Shreveport Geol. Soc. Guidebook, 17th Ann. Field Trip, fig. 5).
Formally named (L.A. Goebel, 1950, AAPG Bull., v. 34, no. 10, p. 1978-1979).
Included in Louark Group (G.E. Murray, 1961, Geol. Atlantic and Gulf Coastal Prov. of North Amer., NY, Harper and Bros., p. 278 (fig. 6.1), 287, 288).
Not used (Dickinson, 1968).
Extended into FL (Miller, 1982).
Overview in AL (Mancini and others, 1990).

Note: If you need more information, please contact Nancy Stamm (
Asterisks (*) indicate usage by the U.S. Geological Survey. Other usages by state geological surveys.

"No current usage" implies that a name has been abandoned or that it has fallen into disuse. Former usage and, if known, replacement name given in parentheses ().

Slashes (/) indicate unit name usage violates the 1983 North American Stratigraphic Code. This violation may be explained within brackets ([ ]).

U.S. Department of the Interior, U.S. Geological Survey, Reston, VA, USA
Database project personnel
Last modified: 15-Jan-2013