Locally, it is part of the surficial aquifer system. The Tamiami Formation has highly permeable to impermeable lithologies that form a complex aquifer. The fossils present include barnacles, mollusks, corals, echinoids, fo raminifers and calcareous nannoplankton. Fossils present in the Tamiami occur as molds, casts and original material. Phosphate is present in virtually all lithologies as limited quantities of sand- to gravel-sized grains. Lithologies of the Tamiami Formation in the mapped area include: 1) light gray to tan, unconsolidated, fine to coarse grained, fossiliferous sand 2) light gray to green, poorly consolidated, fossiliferous sandy clay to clayey sand 3) light gray, poorly consolidated, very fine to medium grained, calcareous, fossiliferous sand 4) white to light gray, poorly consolidated, sandy, fossiliferous limestone and 5) white to light gray, moderately to well indurated, sandy, fossiliferous limestone. The individual members of the Tamiami Formation were not separately mapped on the geological map. These include: the Buckingham Limestone Member an unnamed tan clay and sand an o yster (Hyotissa) facies, a sand facies, the Ochopee Limestone Member, the Bonita Springs Marl Member an unnamed limestone facies the Golden Gate Reef Member and the Pinecrest Sand Member (Missimer, 1992). A n umber of named and unnamed members are recognized within the Tamiami Formation. It occurs at or near the land surface in Charlotte, Lee, Hendry, Collier and Monroe Counties in the southern peninsula. Bonita Springs is by far the most massive of the 6 meteorites that have been recovered from Florida as of 2017 (5 ordinary chondrites and a single eucrite).ĭescription: The Tamiami Formation (Mansfield, 1939) is a poorly defined lithostratigraphic unit containing a wide range of mixed carbonate-siliciclastic lithologies and associated faunas (Missimer, 1992). The main mass is at the United States National Museum in Washington (34 kg as of 2017). Generic limonite regions and some magnetite are indicative of terrestrial weathering. Mineralogically the meteorite consists primarily of dominant olivine and orthopyroxene accompanied by minor troilite and Fe-Ni metal. Compositionally, bulk iron contents (27.06 wt%Fe), equilibrated olivine (Fa18) and low Ca-orthopyroxene ('bronzite') are characteristic of the H-group chondrites. Indistinct chondrules are found within within a largely equilibrated, but weathered matrix. View entry in Meteoritical Bulletin DatabaseĪ single meteoritic stone was recovered.
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