Quantitative Chemical Mass Transfer in Coastal Sediments During Early Diagenesis: Effects of Biological Transport, Mineralogy, and Fabric

Abstract

The long-term goal of this study is to develop a better mechanistic and quantitative understanding of the effects of biologically-enhanced transport, mineralogy, sediment fabric, and particle surface chemistry on biogeochemical reactions occurring in coastal sediments. Specifically, we plan to provide quantitative expressions of biogeochemical processes from field and laboratory studies and to develop a numerical model of early diagenesis which explicitly accounts for the complex interactions between the structural, mineralogical and biological components of coastal marine sediments The short term objective for NRL during FY98 was to identify appropriate sediment fabric and benthic macrofaunal parameters, and to define a fabric format that can be incorporated into the existing reactive transport model at Georgia Institute of Technology (GIT). Our hypothesis is that the fabric of bioturbated sediments will affect the permeability of fluids and exchange functions of various solutes.

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Document Details

Document Type
Technical Report
Publication Date
Sep 30, 1998
Accession Number
ADA542297

Entities

People

  • Dawn Lavoie

Organizations

  • United States Naval Research Laboratory

Tags

Communities of Interest

  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Abstracts
  • Chemistry
  • Electron Microscopy
  • Fluid Flow
  • Fluids
  • Geology
  • Grain Size
  • High Resolution
  • Mass Transfer
  • Mineralogy
  • Particles
  • Permeability
  • Physical Properties
  • Sediments
  • Surface Chemistry
  • Transmission Electron Microscopy
  • Transport Ships

Fields of Study

  • Environmental science

Readers

  • Coastal Oceanography
  • Software Engineering.