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projects > characterization of aquifer heterogeneity using cyclostratigraphy and geophysical methods in the upper part of the karstic biscayne aquifer, southeastern florida

Characterization of Aquifer Heterogeneity Using Cyclostratigraphy and Geophysical Methods in the Upper Part of the Karstic Biscayne Aquifer, Southeastern Florida

thumbnail image showing three-dimensional hydrogeologic model of the upper part of the Biscayne aquifer for the study area in north-central Miami-Dade County
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Project Investigator: Kevin Cunningham

Project Personnel: Michael Wacker

Project Start Date: 1998 End Date: 2002


The objectives of this cooperative project are to identify and characterize candidate ground-water flow zones in the upper part of the shallow, eogenetic karst limestone of the Biscayne aquifer using ground-penetrating radar, cyclostratigraphy, borehole geophysical logs, continuously drilled cores, and paleontology.

Please note - this is a completed project.

This project is funded by the USGS Florida Integrated Center for Water and Restoration Studies & SFWMD.

About 60 miles of ground-penetrating radar profiles were acquired and are used to calculate the depth to shallow geologic contacts and hydrogeologic units, image karst features, and produce a qualitative perspective of the porosity distribution within the upper part of the karstic Biscayne aquifer in the Lake Belt area of north-central Miami-Dade County. Descriptions of lithology, rock fabric, cyclostratigraphy, and depositional environments of 50 test coreholes were linked to geophysical data to provide a more refined hydrogeologic framework for the upper part of the Biscayne aquifer. Interpretation of depositional environments was constrained by analysis of depositional textures and molluscan and benthic foraminiferal paleontology. Digital borehole images were used to help quantify large-scale vuggy porosity. Preliminary heat-pulse flowmeter data were coupled with the digital borehole image data to identify potential ground-water flow zones.


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Script last updated: 23 October 2018 @ 12:03 PM by THF. Record creator: BJM. Record last updated by: KP.