Physical Sciences and Mathematics Commons^™

Stable Isotopic And Geochemical Variability Within Shallow Groundwater Beneath A Hardwood Hammock And Surface Water In An Adjoining Slough (Everglades National Park, Fl), Lee J. Florea, Dorien K. Mcgee, Jonathan G. Wynn

Earth, Environmental, and Atmospheric Sciences Faculty Publications

Data from a ten-month monitoring study during 2007 in south Florida provide insight into the variation of δ18O, δD, and δ13C of DOC in surface water and shallow groundwater of the Everglades ecosystem. Bi-monthly samples were taken from surface water and time-averaged precipitation at Taylor Slough, and shallow groundwater from a well and a small cave within Palma Vista Hammock, an exposure of the Upper Pleistocene Miami Limestone.

δ18O and δD values in shallow groundwater from the well and cave remain near the mean of -2.4 ‰ and -12 ‰, respectively (VSMOW scale). 18O and D are enriched in surface …