Geologic Structure of the Surficial Aquifer System Underlying Everglades National Park and the Big Cypress National Preserve
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Material Information

Title:
Geologic Structure of the Surficial Aquifer System Underlying Everglades National Park and the Big Cypress National Preserve Report SFRC-85/02
Creator:
South Florida Natural Resources Center/South Florida Research Center, Everglades National Park
Martha Jarosewich
Joel Wagner
Place of Publication:
Homestead
Florida
Publisher:
National Park Service, U.S. Department of the Interior
Publication Date:

Notes

Abstract:
Well logs from 67 existing deep wells in southern Florida were used to determine the stratigraphy, depth, and extent of the Surficial Aquifer System underlying Everglades National Park and the Big Cypress National Preserve, Florida. Four geologic cross sections were prepared along well transects within the park and preserve to profile the aquifer system. The profiles reveal considerable heterogeneity in the lithologies but suggest two distinct zones: an upper zone of permeable limestones and clastics and a more heterogeneous lower zone of relatively impermeable fine-grained sands and sandy silts interbedded with permeable sands, limestones, and shelly marls. The permeable upper zone and the more permeable beds of the lower zone were considered to be hydrologically connected; thus, the two zones were treated as comprising a Surficial Aquifer System. Presence of a regionally continuous "green clay bed" of the lower Tamiami Formation was verified, and it was considered the base of the aquifer system. Depth to this bed was determined for the 67 wells, and a contour map of depth to the base of the Surficial Aquifer System was constructed for Dade, Collier, and northern Monroe counties. Surficial Aquifer System depths in the study area range from 90 feet (27.4 m) to 300 feet (91.5 m) below mean sea level. Key words: Everglades National Park, Big Cypress National Preserve, hydrology, hydrogeology, geology, well logs, aquifer. ( English )

Record Information

Source Institution:
Florida International University
Holding Location:
South Florida Natural Resource Center
Rights Management:
Please contact the owning institution for licensing and permissions. It is the user's responsibility to ensure use does not violate any third party rights.
Resource Identifier:
I 29.95: SFRC- 85-02 ( sudoc )