However, a characteristic foraminiferal assemblage, the Tamesi fauna (Ap-plin, 1964), occurs in stratigraphically correlative sections in Leon, Wakulla, and Jefferson County oil wells. This assemblage is composed of ... usage, the term Ocala Limestone has been redefined by numerous authors. An excellent his-torical review is provided by Puri ...

The limestone unit that hosts much of the Floridan Aquifer is named the "Ocala Limestone Formation," a 33.9- to 55.6-Ma-old limestone formation (Martin and Dean 2001; Martin and Screaton 2001). ... North Florida began to form its characteristic peninsula shape when siliciclastic sediment began migrating southward. One of the most well-known ...

An impol tant characteristic of the rock is that, though somewhat soft when first cul, it tends to "case harden" on the outside after exposure to the elements. ... Unconformably overlying the Ocala is the Suwannee Limestone of the Oligocene Epoch. It is a pale orange, finely crystalline, thin bedded, soft to hard, dense, porous, very ...

The Ocala Limestone consists of nearly pure limestones and occasional dolostones. It can be subdivided into lower and upper facies on the basis of lithology. The lower member is composed of a white to cream-colored, fine to medium grained, poorly to moderately indurated, very …

Where it exists, the Tamiami Limestone can sometimes be distinguished on gamma ray logs as a somewhat variable three-zone series of characteristics. INTRODUCTION

limestone, are derived from skeletal material from marine organisms like corals, plankton, algae, gastropods, and sea ... is named the "Ocala Limestone Formation," a 33.9- to 55.6-Ma-old limestone formation (Martin and Dean 2001; ... North Florida began to form its characteristic peninsula shape when siliciclastic sediment began migrating ...

14 Ocala Limestone resistance log, southwest Florida 35 15 Avon Park Limestone gamma ray log 38 16 Avon Park Limestone resistivity log 39 ... Gamma ray and electric log characteristics of the nine Pal eocene age to Pliocene age geologic formations …

Limestone of late Eocene age. The Ocala Limestone is cream to white, soft, friable, and very porous in the Brooksville Ridge. It ranges in thickness from 30 m north of the study area to more than 120 m south of the Brooksville Ridge (Miller, 1986). Petrographic investigations of the Ocala Limestone by Loizeaux (1995) demonstrate three 3rd-order ...

Ocala is in the middle of the Ocala Uplift of northern peninsular Florida, where shallow marine Eocene limestone (I think it's late Eocene Crystal River Fm., Ocala Grp.) is brought to the surface. It's the reason that area is so plagued with sinkholes (with houses and cars dissappearing into the ground) - it's karst topography.

Characters-The Ocala limestone ranges in color from pure white through cream-color to yellow. Its texture is com-monly granular, but parts of it have been converted into hard, compact rock by …

The Ocala Limestone has been reported to be 89 to 97 percent calcium carbonate (table III) in the outcrop area studied (Brantley, 1916). Thickness is generally about 40 feet along the Big …

The Ocala Group limestone commonly occurs as a soft, white, fossiliferous limestone. The occurrence of the distinctive foraminifera genus Lepidocyclina is common to abundant and …

Limestone is a sedimentary rock primarily composed of calcium carbonate (CaCO3) in the form of mineral calcite or aragonite.It is one of the most common and widely distributed rocks on Earth, with a wide range of uses in various industries and natural settings. Limestone forms through the accumulation and compaction of marine organisms, primarily the …

Characteristics and Stratigraphic Position Boundaries, Thickness, and Confinement Water Use Middle Confining Unit Avon Park Permeable Zone ... Oldsmar Formation, Avon Park Formation, Ocala Limestone, Suwannee Limestone, and in some areas the lower part of the Hawthorn Group. The first marker horizon is in the lower part of the aquifer system ...

The Late Ocala Shallow Association is the most diverse and contains some of the more fragile forms. The association can be roughly split into two subgroups. The southern fauna is characteristic of faunal assemblages found in central and north-central Florida. The northern fauna is characteristic of assemblages north of this area. Wythella ...

water from this limestone. Oligocene Series Suwannee Limestone The Suwannee Limestone (Cooke and Mansfield, 1936) is an Oligocene (37.5 - 28 mya) marine limestone and dolostone underlying the northern half of Suwannee County. It pinches out against the underly-ing Ocala Limestone just north of an approximate west-east line connecting the

They include the Eocene Ocala Limestone, the Oligocene Suwannee Limestone, the early Miocene Tampa Member of the Arcadia Formation in central Florida and the St. Marks Formation in north Florida, and the middle Miocene Hawthorn Group formations such as the Peace River, Alachua, and Statenville. 3Within these formations are two types of chert.

However, it is the Ocala Limestone cherts that are of concern here. The Ocala Limestone is composed of upper and lower members (Scott 2001). It was deposited during the Eocene Epoch some 40 to 60 million years ago …

The Ocala Limestone formation (formerly the Ocala Group) consists of (in descending order) the Crystal River Formation, the Williston Formation, and the Inglis Formation, and ranges from 0 to 235 feet in thickness, averaging about 70 feet in the west central Florida area (technically these three "formations" should be "members" of the ...

The characteristic landscape of Florida is relatively to extremely flat. There are few large, natural exposures and limited smaller exposures that geologists can investigate. ... To Ocala Limestone Dall and Harris (1892) referred to the limestones exposed near Ocala, Marion County, in central peninsular Florida as the Ocala Limestone. Puri ...

OCALA LIMESTONE: Generally the Ocala Limestone is soft and porous, but in places it is hard and dense because of cementation of the particles by crystalline calcite. The deposit is remarkable in that it is composed of almost pure calcium carbonate: shells of sea creatures and very tiny chalky particles. Ocala Limestone

Rocks reallocated to Ocala Limestone.) early Tertiary (Eocene and Oligocene)* Type locality: at Ocala, Marion Co., northern FL, where it forms country rock and has been quarried to a depth …

Within the area covered by the City of Ocala wellfield, the Upper Floridan aquifer is the primary source of water supply. The Upper Floridan aquifer in this area is composed of the Ocala Limestone from the Eocene Epoch. In most parts of northern Florida, the Hawthorn Group from the Miocene Epoch is located above the Ocala Limestone.

Ocala Limestone The Upper Eocene Ocala Limestone, first named by Dall and Harris (1892), consists of white to light-gray to light-orange limestone with a diverse fossil assemblage More specifically, the lithology of this formation ranges from a weathered wackestone to packestone with a variable amount of calcilutite matrix (chalky) in the upper ...

of Florida's drinking and spring water. Limestone's porosity and its susceptibility to dissolution by permeating groundwater are what enable the Floridan aquifer to hold so much water. The Eocene-age Avon Park Formation and Ocala Limestone are the main rock formations that make up our Floridan aquifer system, with earlier

Limestone of late Eocene age. The Ocala Limestone is cream to white, soft, friable, and very porous in the Brooksville Ridge. It ranges in thickness from 30 m north of the study area to …

Ocala block was a popular choice for building homes in mid-20th century Gainesville and around Florida. It's made of solid concrete, looks like an oversize brick, and has a defining characteristic that limestone was used as …

The Ocala Limestone in the Dougherty Plain region of southwest Georgia is a fine-grained, white or cream-colored, fossil-bearing limestone. It is believed to have formed in the quiet, open waters of the continental shelf far from land. The Ocala is very permeable and, along with the Avon Park beneath it and the Suwannee Limestone above it ...

1986). The top of the FAS coincides with the top of the late Eocene Ocala Limestone or the early Oligocene Suwannee Limestone in most areas of peninsular Florida. In localized areas where the Ocala and Suwannee have been eroded, the Avon Park Formation is at the top of the FAS. Basal

The upper Eocene Ocala Limestone was deposited during the late Eocene, and is a widespread Florida formation that is rich in invertebrate fossils, including the single-celled …