Accession Number : ADA297962

Title :   Evaluation of Early Diagenesis in Modern, Shallow-Water Carbonate Sediments by Mineralogy, Fabric and Porewater Geochemistry.

Descriptive Note : Quarterly technical rept.,

Corporate Author : UNIVERSITY OF SOUTHERN MISSISSIPPI STENNIS SPACE CENTER CENTER FOR MARINE SCI ENCE

Personal Author(s) : Furukawa, Yoko ; Wiesenburg, Denis

PDF Url : ADA297962

Report Date : 30 JUN 1995

Pagination or Media Count : 10

Abstract : Mineralogy, fabric and porewater geochemistry were examined in order to study early diagenesis in modern, shallow-water carbonate sediments of Key West area. The evidence for early diagenesis is visible as micritic cement in SEM images of sediment samples. Because the major cation concentrations are found to be insensitive to the diagenetic reactions in the study area, mineralogy instead of porewater geochemistry will be used to quantify the extent of early diagenesis. Rietveld crystal structure refinement method will be used for the accurate quantification of phase transformations. (MM)

Descriptors :   *MINE COUNTERMEASURES, *SEDIMENTS, *GEOCHEMISTRY, *CARBONATE MINERALS, SCANNING ELECTRON MICROSCOPES, PHASE TRANSFORMATIONS, PHYSICAL PROPERTIES, X RAY DIFFRACTION, SHALLOW WATER, PORE PRESSURE, PH FACTOR, RECRYSTALLIZATION, BENTHONIC ZONES, CARBONATES.

Subject Categories : Physical and Dynamic Oceanography
      Geology, Geochemistry and Mineralogy
      Underwater Ordnance

Distribution Statement : APPROVED FOR PUBLIC RELEASE