A Cyclostratigraphic and Borehole Geophysical Approach to Development of a Three-Dimensional Conceptual Hydrogeologic Model of the Karstic Biscayne Aquifer, Southeastern Florida
Cunningham K, Wacker M, Robinson E, Dixon J, Wingard L, South Florida Water Management District. A Cyclostratigraphic and Borehole Geophysical Approach to Development of a Three-Dimensional Conceptual Hydrogeologic Model of the Karstic Biscayne Aquifer, Southeastern Florida. U.S. Geological Survey (USGS) Professional Paper. Scientific Investigations Report 2005-5235
The purpose of this report is to document the second phase of the study, which applies cyclostratigrahpic concepts to a database that includes borehole-geophysical logs, core-sample analyses, molluscan and foraminiferal paleontology, and borehole-flowmeter measurements. Specifically, this report demonstrates how carbonate cyclostratigraphy was crucial for defining the spatial distribution of porosity, permeability, and storage within a triple-porosity (matrix, touching-vug, and conduit porosity) karst aquifer. Integrated analysis of the database resulted in delineation of vertical lithofacies successions, depositional environments, porosity, and permeability, of the Pleistocene karst limestone of the Biscayne aquifer in the context of cyclostratigrahpic framework in north-central Miami-Dade County, Florida. A high resolution cyclostratigrahpic model is used throughout the entire thickness of the Biscayne aquifer over a wide area to select consistent correlable ground-water flow zones, diffuse flow zones, and zones of leaky, low permeability in the study area. That part of the Biscayne aquifer included in the upper part of the Pliocene Tamiami Formation is not a major focus of this study.
- Type
- Published Report
- Authors
- Cunningham, Kevin; Wacker, Michael; Robinson, Edward; Dixon, Joann; Wingard, Lynn; South Florida Water Management District
- Units
- BISC , SFCN
- Keywords
- drill, Fort Thompson, Lake Belt area, Limestone, Lithology, PORE, Source