Show/Hide Menu
Hide/Show Apps
anonymousUser
Logout
Türkçe
Türkçe
Search
Search
Login
Login
OpenMETU
OpenMETU
About
About
Open Science Policy
Open Science Policy
Frequently Asked Questions
Frequently Asked Questions
Communities & Collections
Communities & Collections
Explicit representation of spatial heterogeneity in reactive transport models: application to bioirrigated sediments
Date
2003-05-01
Author
Meile, C
Tuncay, Kağan
Van Cappellen, P
Metadata
Show full item record
This work is licensed under a
Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License
.
Item Usage Stats
4
views
0
downloads
Existing reactive transport models represent aquatic sediments as one-dimensional systems. These models account for the predominantly vertical chemical gradients recorded by traditional pore water and solid sediment sampling techniques (e.g., cores, dialysis samplers). However, advances in sampling techniques, including the rapid development of in situ microprofilers, are providing increasingly detailed data sets, which highlight the laterally heterogeneous nature of the water-sediment interface. In particular, coastal sediments inhabited by macrofauna exhibit large horizontal gradients in chemical composition and microbial communities. The availability of comprehensive and multidimensional data sets, along with our growing conceptual understanding of the complex biogeochemical dynamics in sediments, requires more sophisticated reactive transport models that explicitly account for the heterogeneity of aquatic sediments. Here, we present a model that explicitly calculates the effect of flushing of macrofaunal burrows on dissolved chemical species distributions.
Subject Keywords
Economic Geology
,
Geochemistry and Petrology
URI
https://hdl.handle.net/11511/38122
Journal
JOURNAL OF GEOCHEMICAL EXPLORATION
DOI
https://doi.org/10.1016/s0375-6742(03)00107-9
Collections
Department of Civil Engineering, Article