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Swift Creek Mine, North Florida Phosphate District, Hamilton Co., Florida, USA

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Latitude & Longitude (WGS84): 30° 26' 49'' North , 82° 51' 22'' West
Latitude & Longitude (decimal): 30.44694,-82.85611
Köppen climate type:Cfa : Humid subtropical climate


REF:Deposit:: UPPER SUWANNEE RIVER, EVALUATION OF APROPOSED D.R.I. AS AN AREA OF CRITICAL STATE CONCERN, FL. DIV. OF STATE PLAN 1974.
Deposit:: GUIDEBOOK, AIME FIELD TRIP TO OCCIDENTAL MINES, 1977.
Deposit:: OCCIDENTAL (DIV OF HOOKER CHEM.) FORM 10-K. 197
Commodities (Major) - Phosphorus-Phosphates; (Trace) - Magnesite, Aluminum, Iron, Uranium, Fluorine-Fluorite
Development Status: Producer
Deposit Model: 244: Phosphate, warm current type
Host Rock Unit: Rome Formation
Host Rock: Phosphorite

Mineral List


3 valid minerals.

Rock Types Recorded

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Regional Geology

This geological map and associated information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This does not necessarily represent the complete geology at this locality but it gives a background for the region in which it is found.

Click on geological units on the map for more information. Click here to view full-screen map on Macrostrat.org

Late Miocene - Middle Miocene
5.333 - 15.97 Ma



ID: 2751525
Hawthorn Group, Statenville Formation

Age: Miocene (5.333 - 15.97 Ma)

Stratigraphic Name: Statenville Formation

Description: The Statenville Formation occurs at or near the surface in a limited area of Hamilton, Columbia and Baker Counties on the northeastern flank of the Ocala Platform. The formation consists of interbedded sands, clays and dolostones with common to very abundant phosphate grains. The sands predominate and are light gray to light olive gray, poorly indurated, phosphatic, fine to coarse grained with scattered gravel and with minor occurrences of fossils. Clays are yellowish gray to olive gray, poorly consolidated, variably sandy and phosphatic, and variably dolomitic. The dolostones, which occur as thin beds, are yellowish gray to light orange, poorly to well indurated, sandy, clayey and phosphatic with scattered mollusk molds and casts. Phosphate occurs in the Statenville Formation in economically important amounts. Silicified fossils and opalized claystones are found in the Statenville Formation. Permeability of these sediments is generally low, forming part of the intermediate confining unit/aquifer system.

Lithology: Major:{sand}, Minor:{clay,phosphatic shale}, Incidental:{dolostone}

Reference: Horton, J.D., C.A. San Juan, and D.B. Stoeser. The State Geologic Map Compilation (SGMC) geodatabase of the conterminous United States. doi: 10.3133/ds1052. U.S. Geological Survey Data Series 1052. [133]

Data and map coding provided by Macrostrat.org, used under Creative Commons Attribution 4.0 License



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