Advertisement

Geo-Marine Letters

, Volume 17, Issue 4, pp 283–290 | Cite as

Effect of biogeochemical diagenesis on sediment fabric in shallow marine carbonate sediments near the Dry Tortugas, Florida

  • Yoko Furukawa
  • Dawn Lavoie
  • Kevin Stephens

Abstract

 Shallow marine carbonate sediments near the Dry Tortugas undergo extensive biogeochemical diagenesis upon deposition, resulting in postdepositional fabric comprised of micritic aggregates of clay-sized particles, a matrix of peloidal mud, and intraparticular cementation. Freshly deposited primary skeletons, mostly Halimeda fragments, yield micritic aggregates of clay-sized particles, which then form peloidal mud fabric upon compaction. The cryptocrystalline particles produced by micritization are later replaced by high magnesian calcite. Cementation is observed in the intra-particular microenvironment. However, no inter-particular, grain-binding cement was detected throughout the gravity core samples investigated.

Keywords

Calcite Compaction Core Sample Diagenesis Cementation 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

Copyright information

© Springer-Verlag Berlin Heidelberg 1997

Authors and Affiliations

  • Yoko Furukawa
    • 1
  • Dawn Lavoie
    • 2
  • Kevin Stephens
    • 2
  1. 1.Institute of Marine Sciences, University of Southern Mississippi, Stennis Space Center, MS 39529, USAUS
  2. 2.Seafloor Sciences Branch, Naval Research Laboratory, Stennis Space Center, MS 39529, USAUS

Personalised recommendations