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Geologic Unit: James
Map showing publication footprint
  • Usage in publication:
    • James limestone bed
  • Modifications:
    • Original reference
  • Dominant lithology:
    • Coquinid
    • Lime
    • Sand
  • AAPG geologic province:
    • Arkla basin
Publication:

Weeks, W.B., 1938, South Arkansas stratigraphy with emphasis on the older coastal plain beds: American Association of Petroleum Geologists Bulletin, v. 22, no. 8, p. 953-983. [Available online, with subscription, from AAPG archives: http://www.aapg.org/datasystems or http://search.datapages.com]


Summary:

Pg. 961 (fig. 4), 970. James Limestone bed. Bed in upper part of Pine Island member of Glen Rose. Oolitic coquinid to sandy gray lime and fine sand. Apparently correlative with Dierks limestone of outcrop. Age is Early Cretaceous (Comanche).
Named from Arkansas Fuel Oil Company James No. 1 well, sec. 14, T. 20 N., R. 1 E., Union Parish, LA, from 3,827 to 3,917 ft. [Considered type section here.]

Source: US geologic names lexicon (USGS Bull. 1200, p. 1909).


Map showing publication footprint
  • Usage in publication:
    • James limestone
  • Modifications:
    • Revised
  • AAPG geologic province:
    • Arkla basin
Publication:

Imlay, R.W., 1944, Correlation of Lower Cretaceous formations of the coastal plains of Texas, Louisiana, and Arkansas: U.S. Geological Survey Oil and Gas Investigations Preliminary Chart, OC-3, 1 sheet, scale 1:4,800


Summary:

Referred to as James limestone (in Trinity group). Underlies Rodessa formation; overlies Pine Island shale.

Source: US geologic names lexicon (USGS Bull. 1200, p. 1909).


Map showing publication footprint
  • Usage in publication:
    • James limestone member
  • Modifications:
    • Revised
  • AAPG geologic province:
    • Arkla basin
Publication:

Forgotson, J.M., Jr., 1957, Stratigraphy of Comanchean Cretaceous Trinity group: American Association of Petroleum Geologists Bulletin, v. 41, no. 10, p. 2328-2363. [Available online, with subscription, from AAPG archives: http://www.aapg.org/datasystems or http://search.datapages.com]


Summary:

Pg. 2342-2346. James limestone member. Member of Pearsall formation (Trinity group); overlies Pine Island shale member. For purposes of this study, defined as stratigraphic interval and its correlative rock equivalents in W.C. Feazel's Tonway Smith No. 1 well, sec. 18, T. 21 N., R. 2 E., Union Parish, LA, between depths of 4,255 and 4,370 feet. Separated from overlying Rodessa by variable interval referred to as Bexar shale member of its equivalent. Cow Creek member is both rock-stratigraphic and time-stratigraphic equivalent of James member. Age is Early Cretaceous (Comanchean; Aptian).

Source: US geologic names lexicon (USGS Bull. 1200, p. 1909).


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 ([ ]).

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