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Miami Limestone

The Miami Limestone, originally called Miami Oolite, is a geologic formation of limestone in southeastern Florida.

Miami Limestone
Stratigraphic range: Pleistocene
TypeFormation
Location
Region Florida
Country United States
Miami Limestone (formerly Miami Oolite, orange on map) in relation to other formations in South Florida.

Miami Limestone forms the Atlantic Coastal Ridge in southeastern Florida, near the coast in Palm Beach, Broward and Miami Dade counties. It also lies under the eastern (Miami-Dade County) part of the Everglades, Florida Bay, and the lower Florida Keys from Big Pine Key to the Marquesas Keys.[1] Mitchell-Tapping also states that a component of the Miami Limestone extends under the Gulf of Mexico north to a point 112 kilometers west of Tampa.[2]

The part of the Miami Limestone forming the Atlantic Coastal Ridge and the lower Florida Keys is an oolitic grainstone which includes fossils of corals, echinoids, mollusks, and algae. The oolitic formation in the lower Florida Keys has less quartz sand and fewer fossils than does the oolitic formation on the mainland.[3] Based on those differences, Mitchel-Tapping divided the Miami Limestone into the Fort Dallas oolite on the mainland and under northern Florida Bay, and the Key West oolite, under southern Florida Bay and the lower Florida Keys.[4] The fossils in the formation underlying the Everglades, which does not include any ooids, consists primarily of a single bryozoan species, Schizoporella floridana.[5]

The Miami Limestone was deposited during the Sangamon interglacial, when southern Florida was under a shallow sea. Falling sea levels during the Wisconsin glaciation exposed the formation to air and rain, and rainwater percolating through the deposits replaced aragonite with calcite and formed an indurated rock.[5]

See also edit

Citations edit

  1. ^ "Miami Limestone". USGS. from the original on November 1, 2022. Retrieved May 7, 2019.
  2. ^ Mitchell-Tapping 1980, pp. 117–118.
  3. ^ . USGS South Florida Information Access. September 4, 2013. Archived from the original on July 31, 2020. Retrieved May 8, 2019.
  4. ^ Mitchell-Tapping 1980, pp. 116–118.
  5. ^ a b "Virtual Field Trip of Selected Exposures of the Miami Limestone". www.geosciences.fau.edu. Research Labs : Florida Atlantic University - Department of Geosciences. Retrieved May 9, 2019.

References edit

  • Mitchell-Tapping, Hugh J. (Spring 1980). "Depositional History of the Oolite of the Miami Limestone Formation". Florida Scientist. 43 (2): 116–125. JSTOR 24319647.


miami, limestone, originally, called, miami, oolite, geologic, formation, limestone, southeastern, florida, stratigraphic, range, pleistocenetypeformationlocationregion, floridacountry, united, states, formerly, miami, oolite, orange, relation, other, formatio. The Miami Limestone originally called Miami Oolite is a geologic formation of limestone in southeastern Florida Miami LimestoneStratigraphic range PleistoceneTypeFormationLocationRegion FloridaCountry United StatesMiami Limestone formerly Miami Oolite orange on map in relation to other formations in South Florida Miami Limestone forms the Atlantic Coastal Ridge in southeastern Florida near the coast in Palm Beach Broward and Miami Dade counties It also lies under the eastern Miami Dade County part of the Everglades Florida Bay and the lower Florida Keys from Big Pine Key to the Marquesas Keys 1 Mitchell Tapping also states that a component of the Miami Limestone extends under the Gulf of Mexico north to a point 112 kilometers west of Tampa 2 The part of the Miami Limestone forming the Atlantic Coastal Ridge and the lower Florida Keys is an oolitic grainstone which includes fossils of corals echinoids mollusks and algae The oolitic formation in the lower Florida Keys has less quartz sand and fewer fossils than does the oolitic formation on the mainland 3 Based on those differences Mitchel Tapping divided the Miami Limestone into the Fort Dallas oolite on the mainland and under northern Florida Bay and the Key West oolite under southern Florida Bay and the lower Florida Keys 4 The fossils in the formation underlying the Everglades which does not include any ooids consists primarily of a single bryozoan species Schizoporella floridana 5 The Miami Limestone was deposited during the Sangamon interglacial when southern Florida was under a shallow sea Falling sea levels during the Wisconsin glaciation exposed the formation to air and rain and rainwater percolating through the deposits replaced aragonite with calcite and formed an indurated rock 5 See also edit nbsp Earth sciences portal nbsp Florida portal nbsp Paleontology portalList of fossiliferous stratigraphic units in FloridaCitations edit Miami Limestone USGS Archived from the original on November 1 2022 Retrieved May 7 2019 Mitchell Tapping 1980 pp 117 118 Pleistocene geology USGS South Florida Information Access September 4 2013 Archived from the original on July 31 2020 Retrieved May 8 2019 Mitchell Tapping 1980 pp 116 118 a b Virtual Field Trip of Selected Exposures of the Miami Limestone www geosciences fau edu Research Labs Florida Atlantic University Department of Geosciences Retrieved May 9 2019 References editMitchell Tapping Hugh J Spring 1980 Depositional History of the Oolite of the Miami Limestone Formation Florida Scientist 43 2 116 125 JSTOR 24319647 nbsp This article about a specific stratigraphic formation in Florida is a stub You can help Wikipedia by expanding it vte Retrieved from https en wikipedia org w index php title Miami Limestone amp oldid 1131873549, wikipedia, wiki, book, books, library,

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