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Open-File Report 2012–1275

Chronology from Sediment Cores Collected in Southwestern Everglades National Park, Florida

By C.E. Bernhardt, G.L. Wingard, D.A. Willard, M.E. Marot, B. Landacre, and C.W. Holmes

Thumbnail of and link to report PDF (2.34 MB)Abstract

Age model data are presented for 10 cores from the southwestern coastal mangrove zone of Everglades National Park, Florida, collected in Common Era (CE) 2004 and 2005 and used for paleoecological analysis. Carbon-14 (14C), lead-210 (210Pb), cesium-137 (137Cs), radium-226 (226Ra), and pollen biostratigraphic information is included, and age models were generated for 6 of the 10 cores. Age reversals and sediment disturbance prevented construction of age models on the remaining four cores. Four cores present a continuous record of the last 50 to 100 years, making them useful for analyzing the impacts caused by changes in water management in south Florida. These cores are Harney River 2A and Harney River 1A, Shark River 2A, and Roberts River.

First posted May 22, 2013

For additional information contact:
Christopher E. Bernhardt

or

Eastern Geology and Paleoclimate Science Center
U.S. Geological Survey
MS 926A
12201 Sunrise Valley Drive
Reston, VA 20192-0002
Telephone: 703-648-6915

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Suggested citation:

Bernhardt, C.E., Wingard, G.L., Willard, D.A., Marot, M.E., Landacre, B., and Holmes, C.W., 2013, Chronology from sediment cores collected in southwestern Everglades National Park, Florida: U.S. Geological Survey Open-File Report 2012‒1275, 59 p., http://pubs.usgs.gov/of/2012/1275. (Available only online.)



Contents

Abstract

Introduction

Acknowledgments

Methods

Age Model Results and Discussion

Summary and Future Study

References Cited

Appendix A. Lead-210 (210Pb) Data from Cores

Appendix B. Pollen Diagrams

Appendix C. Calibrated Age Ranges (Intcal09)

Appendix D. Age Model by Core


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