Surficial Aquifer Geologic and Hydrologic Properties in Southwest Florida

A three-dimensional database of geologic and hydrologic properties for the surficial aquifer system in Collier and Monroe Counties, Florida. The project was conducted by the CEOS_EXTRA organization to support hydrologic modeling for ecosystem restoration, with data last updated in 1999. It integrates core sample analysis for fossils and isotopic strontium dating with downhole geophysical logs to characterize the aquifer framework.

Use Cases

• Estimating aquifer rock age using strontium isotopic ratios from unaltered shell samples.
• Characterizing aquifer permeability by correlating flowmeter logs with core measurements of hydrologic properties.
• Identifying confining units and discrete aquifers using geophysical log data on water quality and hydraulic head.
• Mapping the three-dimensional geologic framework using data from fossil analysis (dinoflagellate cysts, pollen, mollusks) in core samples.
• Extending discrete hydrologic test data to entire coreholes via continuous downhole geophysical log records.

Strengths

• Integrates two independent age estimation methods: fossil correlation and strontium isotopic analysis.
• Uses continuous downhole geophysical logs to supplement intervals with poor core recovery.
• Data is designed for direct application in hydrologic models used by major agencies like the USACE and SFWMD.

Limitations

• Dataset is temporally stale, with a last update date of 1999.
• Spatial coverage is limited to two counties (Collier and Monroe) in southwest Florida.
• Sample size and specific row/column counts are unknown from the provided description.

Provenance

Source

CEOS_EXTRA, via NASA EarthData.

Collection Method

Core sample analysis (fossils, isotopic strontium) combined with downhole geophysical logging.

Geography

Southwest Florida, specifically Collier and Monroe Counties.