My Account: Log In | Join | Renew
Search
Author
Title
Vol.
Issue
Year
1st Page

Abstract

 

This article in SSSAJ

  1. Vol. 33 No. 5, p. 743-745
     
    Received: Mar 17, 1969
    Published: Sept, 1969


 View
 Download
 Alerts
 Permissions
 Share

doi:10.2136/sssaj1969.03615995003300050033x

Radiocarbon Chronology of the Florida Everglades Peat1

  1. L. L. McDowell,
  2. J. C. Stephens and
  3. E. H. Stewart2

Abstract

Abstract

Radiocarbon measurements on two peat profiles near Belle Glade, Fla., indicate that peat formation in the Upper Everglades began during late Hypsithermal time, about 4,400 years B.P. (before present). Initially, peat development was very slow. About 500 to 1,000 years were required to build up the 7.6 cm of basal mucky peat, composed of a mixture of marl and organic matter. Then about 3,500 to 4,000 years ago, as a result of environmental changes, plant growths increased rapidly and were preserved as fibrous peats with very little mineral admixture. This rapid development of peat is contemporaneous with a rapid eustatic rise in sea level.

Peat development proceeded rapidly (about 7.3 cm/century) from about 3,500 years to 1,200 years B.P. During this interim the existing peat, measuring about 1.37 m in thickness, was developed. By A. D. 1914 the peat had developed to a depth of about 3.65 m. This represents an average peat development of about 8.4 cm/century (4,400 B.P. to A.D. 1914).

The Everglades Basin, prior to the initiation of drainage programs in the early 1900's, was inundated for a large part of the year. Since drainage, over a period of 50 years, about 1.8 m, or one-half, of the original profile has been destroyed by the prevailing aerobic conditions.

  Please view the pdf by using the Full Text (PDF) link under 'View' to the left.

Copyright © . Soil Science Society of America