The lithostratigraphy, depositional environment, and diagenetic history of the Lower and Upper Cretaceous rocks have been studied from TEC DIW-1 deep well drilled in the Polk County, Florida. A total of 47 samples were obtained from the core and cuttings in the study area. Microscopic examination of core and samples of drill cuttings from the well provided the basic data associated with the part of the stratigraphic section discussed in the study. Four lithostratigraphic units have been distinguished; (1) the Pine Key Formation, (2) the Atkinson Formation included in the Gulf Series, (3) the Dollar Bay Formation, and (4) the undifferentiated Panther Camp, Rookery Bay and Corkscrew Swamp formation included in the Comanche Group. Carbonate rocks of the study area were classified on the basis of their original depositional texture as outlined by Dunham (1962) and identified facies were compared with standard microfacies types according to Wilson (1975) and Flugel (1982). The determined microfacies of the Pine Key Formation include mudstone and peloidal fossiliferous wackestone suggesting deposition under relatively shallow marine environments. Restricted shelf lagoon to tidal areas are generally suggested environments that reflect deposition settings within shallow marine inner shelf conditions. The undifferentiated Panther Camp, Rookery Bay and Corkscrew Swamp Formation includes five microfacies involving peloidal foraminferal packstone, foraminiferal grainstone, peloidal wackestone, fossiliferous packstone, and dolomitized foraminiferal wackestone. The shallow marine inner shelf settings are also interpreted for this part of the sequence. Shallow marine shelf lagoon to restricted shelf lagoon areas are the environments representing depositional settings of the Dollar Bay Formation that includes the microfacies of intraclastic foraminiferal packstone, foraminiferal wackestone, peloidal foraminiferal packstone, fossiliferous grainstone, algal packstone, and arenaceous peloidal fossiliferous packstone. Microcrystalline marine calcite, pore-filling sparry, isopochaous, as well as pore-filling bladed cements, fabric selective secondary porosity including types of moldic and intraparticle, micritization, dolomitization by aggrading neomorphism or selective replacement dolomitization are the main diagenetic features of the Pine Key, undifferentiated Panther Camp, Rookery Bay and Corkscrew Swamp, and Dollar Bay Formations. On the basis of these features, meteoric phreatic, mixing zone, and marine phreatic diagenetic indicators have been identified. / A Thesis submitted to the Department of Earth, Ocean, and Atmospheric Science in partial fulfillment of the requirements for the degree of Master of Science. / Summer Semester 2015. / July 13, 2015. / Includes bibliographical references. / William Parker, Professor Directing Thesis; Seth Young, Committee Member; Yang Wang, Committee Member.
| Identifer | oai:union.ndltd.org:fsu.edu/oai:fsu.digital.flvc.org:fsu_253201 |
| Contributors | Bozkurt, Sonay (authoraut), Parker, William C., 1952- (professor directing thesis), Young, Seth Allen, 1978- (committee member), Wang, Yang (committee member), Florida State University (degree granting institution), College of Arts and Sciences (degree granting college), Department of Earth, Ocean, and Atmospheric Science (degree granting department) |
| Publisher | Florida State University, Florida State University |
| Source Sets | Florida State University |
| Language | English, English |
| Detected Language | English |
| Type | Text, text |
| Format | 1 online resource (113 pages), computer, application/pdf |
| Rights | This Item is protected by copyright and/or related rights. You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use. For other uses you need to obtain permission from the rights-holder(s). The copyright in theses and dissertations completed at Florida State University is held by the students who author them. |
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