Geochemical, Mineralogical and Microstructural Study of the Seafloor Diagenesis of Carbonate Sediments in Fort Jefferson National Monument Area.

Abstract

The carbonate sediments from Fort Jefferson National Monument area are being studied for porewater geochemistry, mineralogy and microfabric in order to evaluate the effects of seafloor diagenesis to the sediment structure. Cementation is suggested at the depths of 120 cm and below by the increase in high-Mg/low-Mg calcite ratio determined by the Rietveld crystal structure refinement. More detailed mineralogy study and porewater geochemistry of deeper samples will possibly confirm thiS suggestion. Seafloor diagenesis may be significant at the depths where the effects of bioturbation and storm mixing do not reach. jg p.1

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Document Details

Document Type
Technical Report
Publication Date
Sep 30, 1995
Accession Number
ADA302499

Entities

People

  • Denise Weisenburg
  • Yoko Furukawa

Organizations

  • University of Southern Mississippi

Tags

Communities of Interest

  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Aragonite
  • Boundary Layer
  • Calcium Compounds
  • Carbonate Minerals
  • Chemical Reactions
  • Chemistry
  • Crystal Structure
  • Diffraction
  • Electron Microscopes
  • Microscopes
  • Military Research
  • Mineralogy
  • Oxidation
  • Sampling
  • Scanning Electron Microscopes
  • Sulfides
  • X Rays

Fields of Study

  • Environmental science

Readers

  • Coastal Oceanography
  • Environmental Remediation and Restoration.
  • Geotechnical Engineering.