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National Geologic Map Database
Geologic Unit: Okaloacoochee
Map showing publication footprint
  • Usage in publication:
    • Okaldakoochee marl member
  • Modifications:
    • [Incidental mention]
  • AAPG geologic province:
    • Florida platform
Publication:

DuBar, J.R., 1957, Age and stratigraphic relationships of the Caloosahatchee marl of Florida: Illinois Academy of Science Transactions, v. 50, p. 187-193.


Summary:

Pg. 192 (table 1). Okaldakoochee marl member of Fort Thompson formation. Table shows Fort Thompson formation divided into Okaldakoochee marl member below and Coffee Mill Hammock marl member above; occurs above Ayers Landing member (new) of Caloosahatchee marl. [Age is Pleistocene (Wisconsin).]

Source: US geologic names lexicon (USGS Bull. 1200, p. 2811).


Map showing publication footprint
  • Usage in publication:
    • Okaldakoochee marl member
  • Modifications:
    • Named
  • Dominant lithology:
    • Marl
  • AAPG geologic province:
    • Florida platform
Publication:

DuBar, J.R., 1958, Neogene stratigraphy of southwestern Florida: Gulf Coast Association of Geological Societies Transactions, v. 8, p. 129-155.


Summary:

All Fort Thompson deposits that underlie Coffee Mill Hammock marl are grouped into Okaldakoochee marl. These include all fresh-water beds at type locality and also lower marine unit here called "X, Chlamys bed."

Source: GNU records (USGS DDS-6; Reston GNULEX).


Map showing publication footprint
  • Usage in publication:
    • Okaloakoochee Member
  • Modifications:
    • Overview
  • AAPG geologic province:
    • Florida platform
Publication:

DuBar, J.R., 1974, Summary of Neogene stratigraphy of southern Florida, IN Oaks, R.Q., Jr., and Du Bar, J.R., eds., Post-Miocene stratigraphy central and southern Atlantic Coastal Plain: Utah State University Press, p. 206-231.


Summary:

Okaloakoochee Member of Fort Thompson Formation described in Hendry Co., southern FL, as white, cream, yellow brown, and tan sand and marl. Underlies Coffee Mill Hammock Member; overlies Bermont Formation (named). Age is Pleistocene (140 to 120 ka).
[Name amended to Okaloacoochee to conform with U.S. Board on Geographic Names.]

Source: GNU records (USGS DDS-6; Reston GNULEX).


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 ([ ]).