GEOLEX

Summary of Citation: Anastasia

Publication:
Sellards, E.H., 1912, The soils and other surface residual
   materials of Florida, their origin, character, and the
   formations from which derived; a study in agrogeology: Florida
   Geological Survey Annual Report, no. 4, p. 1-79

Usage in Publication:
Anastasia formation

Modifications:	Geologic Province:	Dominant Lithology:
Named	South GA-North FL sedimentary province	Coquina Limestone

Summary:
The term Anastasia formation is here applied to the extensive deposit of coquina rock found along east coast of FL. The rock is a mass of more or less water-worn shells, which in some localities are cemented to form a firm rock, but elsewhere may be slightly or not at all cemented. Some sand is frequently included in this formation and the cementing material is calcite. Typically exposed on Anastasia Island, also in cut made by Florida East Coast RR on Tomora Creek near Ormond, and along the Coast at Rockledge. Probably contemporaneous, or partly so, with Miami limestone and other Pleistocene formations along southern coast.

Summary of Citation: Anastasia

Publication:
Cooke, C.W. and Mossom, D.S., 1929, Geology of Florida, with
   geologic map: Florida Geological Survey Annual Report, no.
   20, pt. 2, p. 29-228, (incl. geologic map, scale 1:1,000,000),
   Geologic map prepared in cooperation with the U.S. Geological
   Survey.

Usage in Publication:
Anastasia formation

Modifications:	Geologic Province:	Dominant Lithology:
Revised Redescribed	South GA-North FL sedimentary province	Sand

Summary:
Anastasia formation redefined to include all marine deposits of Pleistocene age that underlie lowest plain bordering east coast of FL, north of southern part of Palm Beach Co., and also including a local facies, consisting chiefly of shell marl irregularly hardened into sandy limestone, which in some previous reports has been called "Palm Beach limestone," and which marks transition of Anastasia formation into the contemporaneous Miami oolite. Most conspicuous part of Anastasia is coquina containing a little quartz sand, and no doubt at some places the formation may be almost wholly quartz sand. Thickness variable; near St. Augustine the coquina is 30+ ft thick. It is probable the deposits referred to Anastasia formation are not all of same age. It is not unlikely the formation of the shell beds has been continuous since end of Pliocene, although the locus of deposition has been continually shifting. Accompanying map applies name Anastasia to the Pleistocene marine beds of west coast of FL as far north as Tampa Bay.

Summary of Citation: Anastasia

Publication:
DuBar, J.R., 1991, Florida Peninsula, IN DuBar, J.R., and others,
   Quaternary geology of the Gulf of Mexico coastal plain,
   Chapter 19, IN Morrison, R.B., ed., Quaternary nonglacial
   geology; conterminous United States: Geological Society of
   America, The Geology of North America, The Decade of North
   American Geology (DNAG), v. K-2, p. 595-604

Usage in Publication:
Anastasia Formation

Modifications:	Geologic Province:	Dominant Lithology:
Revised	Florida platform

Summary:
Hialeah Group (DuBar, in press) is composed of the late Pleistocene Fort Thompson Formation, the Anastasia Formation, the Miami Limestone and the Key Largo Limestone. Formations intergrade and interfinger, especially in southeastern FL. Sandy, shelly, dominantly marine facies of the Anastasia occurs at the surface and in the subsurface along the Atlantic Coast of FL from Duval Co. southward to Miami. Average thickness of unit is about 9 m, but beneath the Atlantic Coastal Ridge, it reaches a thickness of 60 m or more. Anastasia unconformably overlies the Bermont Formation or equivalents. Surface unit or unconformably under thin Wisconsinan or Holocene deposits. Dated at 110 ka in the Cape Kennedy area by Osmond and others (1970).

Summary of Citation: Anastasia

Publication:
Missimer, T.M., 1993, Pliocene stratigraphy of southern Florida;
   unresolved issues of facies correlation in time, IN Zullo,
   V.A., and others, The Neogene of Florida and adjacent regions;
   proceedings of the third Bald Head Island conference on
   coastal plains geology: Florida Geological Survey Special
   Publication, no. 37, Hilton Head Island, SC, November 4-8,
   1992, p. 33-42

Usage in Publication:
Anastasia Formation

Modifications:	Geologic Province:	Dominant Lithology:
Age modified	Florida platform

Summary:
In this report there are four named formations included within Pliocene time in southern FL, including the lower parts of the Caloosahatchee and Anastasia Formations, the Tamiami Formation, and the Peace River Formation of the Hawthorn Group. All are separated from each other and from younger and older units by regional unconformities. Upper part of the Anastasia formation is late Pleistocene, but it is a thick, poorly defined unit. It may be necessary to redefine the boundaries of this unit to exclude the lower section from the formation and leave only the upper Pleistocene portion.