Coral Reefs

, Volume 20, Issue 2, pp 95–105

A classic Caribbean algal ridge, Holandés Cays, Panamá: an algal coated storm deposit

  • Ian G. Macintyre
  • Peter W. Glynn
  • Robert S. Steneck
Report

DOI: 10.1007/s003380000135

Cite this article as:
Macintyre, I.G., Glynn, P.W. & Steneck, R.S. Coral Reefs (2001) 20: 95. doi:10.1007/s003380000135

Abstract

Twenty-seven radiocarbon dates of cores recovered from six drill holes indicate that the relief of the ridge on the seaward edge of the Holandés Cays, San Blas, off the Caribbean coast of Panamá, was formed by storm deposits about 2,000 to 2,800 years ago. Although crustose coralline algae are a dominant component of the surface cover on this outer ridge, they played a minor role in the construction of the framework of this bioherm, which therefore cannot be classified as an algal ridge. The framework of the ridge consists dominantly of Agaricia/Millepora rubble that is extensively lithified by micritic submarine Mg-calcite cement. The present-day surface of this area in the Holandés Cays is primarily one of widespread bioerosion with very little indication of substrate accumulation over the past 2,000 years.

Algal ridge Storm deposits Submarine lithification Crustose coralline algae

Copyright information

© Springer-Verlag 2001

Authors and Affiliations

  • Ian G. Macintyre
    • 1
  • Peter W. Glynn
    • 2
  • Robert S. Steneck
    • 3
  1. 1.Department of Paleobiology, MRC 125, National Museum of Natural History, Smithsonian Institution, Washington, DC 20560USA
  2. 2.Division of Marine Biology and Fisheries, Rosenstiel School of Marine and Atmospheric Science, University of Miami, 4600 Rickenbacker Causeway, Miami, Florida 33149USA
  3. 3.School of Marine Sciences, University of Maine, Darling Marine Center, Walpole, Maine 04573USA