Preliminary correlation of the Paleozoic rocks from test wells in Florida and adjacent parts of Georgia and Alabama

Bridge, Josiah; Berdan, Jean M.

doi:10.3133/ofr5113

Cited by 20 publications

(23 citation statements)

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“…The oldest sedimentary rocks known to underlie parts of northern and central Florida are of Early Ordovician through Middle Devonian ages (Applin, 1951;Bridge and Berdan, 1952;Braunstein, 1958;Carroll, 1963, Berdan, 1965. These are nonconformable on a varied silicic plutonic, metamorphic, and volcanic basement, and are overlain with angular discordance by Early Cretaceous carbonates and evaporites in central and southern Florida, and by Early Cretaceous terrigenous clastics in northern and northwestern Florida.…”

Section: Florida and Bahamas Platformmentioning

confidence: 99%

Paleogeography and Geological History of Greater Antilles

Khudoley

Meyerhoff²

1971

Geological Society of America Memoirs

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Section: Florida and Bahamas Platformmentioning

confidence: 99%

Paleogeography and Geological History of Greater Antilles

Khudoley

Meyerhoff²

1971

Geological Society of America Memoirs

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“…Overlying this part of the Little River Complex in northern Florida is a sequence of fossiliferous Ordovician to Devonian clastic sedimentary rocks, which Chowns and Williams (1983) referred to as the Northern Florida platform sequence. Fossils in these rocks belong to the Atlantic faunal province (Applin, 1951;Bridge and Berdan, 1952;Pojeta and others, 1976;Chowns and Williams, 1983, and references therein). Volcanic material is unknown in the sequence, and the lithologies (shales, siltstones, cross-bedded sandstones, and quartz arenites) suggest a shelf environment (Chowns and Williams, 1983, p. L9-L10).…”

Section: Northern Florida Platform Sequencementioning

confidence: 99%

The Macon Complex; An ancient accretionary complex in the southern Appalachians

Higgins

Crawford²,

Atkins³

et al. 1989

Ménges Olistostromes of the U.S. Appalachians

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The Macon Complex, which extends from eastern Alabama to northern North Carolina, is a late Precambrian-Middle Cambrian accretionary complex comparable in size to the Franciscan Complex of California and Oregon. Much of the complex is tectonic, sedimentary, and metamorphic chaos, properly termed mélange, where wellrounded to angular fragments, blocks, and slabs of contrasting metamorphic grades, different igneous parentages, drastically different sedimentary facies, and different degrees of deformation "float" in highly imbricated and tectonized matrices, the whole having been intruded by Devonian mafic plutons and associated syenites, and by Carboniferous granitic plutons. We have divided the complex into three mélanges that probably reflect different structural regimes within the accretionary wedge: (1) the Juliette mélange, with two tectonostratigraphic lithofacies, the clastic-rich, partly olistostromal Potato Creek facies and the Gladesville facies, rich in mafic and ultramaflc fragments, blocks, and slabs; (2) the Po Biddy mélange, characterized by metamorphosed manganiferous sediments, metavolcaniclastic rocks, graphitic schists, and locally by metamorphosed thinly bedded pyritiferous limestones, and a wide variety of mineral deposits; and (3) the Falls Lake mélange, which is quite similar to the Juliette mélange and probably represents the same tectonostratigraphic horizon in the accretionary prism. The matrices of the mélanges contain a wide variety of metaigneous and metasedimentary exotic clasts, including mafic and ultramaflc rocks. The Macon Complex is structurally overlain by the late Precambrian-Middle Cambrian Little River Complex, made up of thick piles of mostly felsic calc-alkaline metavolcanic rocks, and lesser amounts of metaplutonic rocks, that originated in a continental-margin volcanic arc (Little River arc). Trilobites from near the top of one of the youngest sections are restricted to the upper two-thirds of the Middle Cambrian and are characteristic of theAtlantic faunal province. The Little River Complex is overlain, beneath the Atlantic Coastal Plain, by the African cratonic Northern Florida platform sequence; the Macon and Little River complexes and the Northern Florida platform sequence make up the Little River thrust stack. The magmas of the Devonian plutons that have intruded the Macon Complex probably formed when the Little River stack was thrust upon the underlying Georgiabama thrust stack, which was itself still being thrust toward the North American craton. The Macon Complex is interpreted to have formed between a trench and the Little River island arc at the oceanward edge of what was either a microcontinent off the African continent or the core of the present African continent. Many mafic and all ultramaflc bodies in the mélange are probably pieces of Iapetus Ocean crust and mantle offscraped from the downgoing slab and imbricated into the accretionary wedge.

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“…A lengthy environmental impact statement (U.S. Bureau of Land Managment, 1974) information on the entire Osceola National Forest and the affect of possible phosphate mining. Reports by Puri and Vernon (1964), Milton (1972), Bridge and Berdan (1952), Applin (1951), Applin and Applin (1944, 1965, 1967, Cole (1944), and Rainwater (1971) outline the subsurface geology of the region. Available information on the mineral resources in northern Florida include the following references: limestone (Schmidt and others, 1979), phosphate (Cathcart, 1968;Mansfield, 1942;Sever, Cathcart, and Patterson, 1967), and heavy minerals (Garner, 1972(Garner, , 1981Pirkle and Yoho, 19.70;Pirkle, Pirkle, and Yoho, 1977).…”

Section: Previous Investigationsmentioning

confidence: 99%

“…Several holes in the region have penetrated J;>aleoz9ic sedimentary rocks at depth (Applin, 1951;Puri and Vernon, 1964, plate 1;Bridge and Berdan, 1952). The lithologies and ages of these rocks and the dry holes in which they were intersected include the · following: a) quartzite or quartzitic sandstone · · or Ordovician age ( fig …”

Section: Stratigraphy Paleozoic Eramentioning

confidence: 99%