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

Abstract

LONG-TERM GOAL. The long-term goal of the 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 the biogeochemical dynamics of coastal marine sediments. OBJECTIVES. Objectives of the study are to (1) develop robust mathematical representations for sediment mixing, irrigation and sediment fabric, (2) parameterize transport and fabric functions using tracer experiments, high-resolution deterministic and stochastic submodels, measured profiles of physical and chemical properties of sediments plus pore waters, and high-resolution imaging of sediment fabric and statistical analysis of burrow networks, (3) incorporate the transport and fabric functions in an existing computer code for multicomponent reactive transport in aquatic sediments, and (4) perform sensitivity analyses and simulations.

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Document Details

Document Type
Technical Report
Publication Date
Sep 30, 1997
Accession Number
ADA634635

Entities

People

  • Philippe Van Cappellen

Organizations

  • Georgia Tech

Tags

Communities of Interest

  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Atmospheric Sciences
  • Chemical Properties
  • Chemistry
  • Computers
  • Dynamics
  • High Resolution
  • Marine Systems (Military)
  • Mass Transfer
  • Mineralogy
  • Probability Distributions
  • Sediments
  • Simulations
  • Statistical Analysis
  • Surface Chemistry
  • Transfer Functions
  • Transport Ships
  • Two Dimensional

Fields of Study

  • Environmental science

Readers

  • Coastal Oceanography
  • Computational Fluid Dynamics (CFD)
  • Reinforced Composite Materials