Modeling reactive transport in sediments subject to bioturbation and compaction

• Published in: Geochimica et cosmochimica acta Vol. 69; no. 14; pp. 3601 - 3617
• Main Authors: Meysman, Filip J.R., Boudreau, Bernard P., Middelburg, Jack J.
• Format: Journal Article
• Language: English
• Published: Elsevier Ltd 01.07.2005

Current bioturbation models are marked by confusion in their treatment of porosity. Different equations appear to be needed for different biodiffusion mechanisms, i.e., interphase mixing, where biological activity causes bulk mixing of sediment affecting both tracer and porosity profiles, versus int...