Physics – Geophysics
Scientific paper
Oct 1998
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998georl..25.3899l&link_type=abstract
Geophysical Research Letters, Volume 25, Issue 20, p. 3899-3902
Physics
Geophysics
2
Marine Geology And Geophysics: Marine Seismics, Physical Properties Of Rocks: Acoustic Properties, Physical Properties Of Rocks: Wave Attenuation
Scientific paper
Acoustic and chemical measurements were made on water-saturated synthetic sediments undergoing diagenesis from uncompacted glass beads into a cemented glass bead, sandstone-like material. The sediment-water interaction was investigated as a function of time by monitoring the acoustic properties, water electrical conductivity, pH, and ion concentration. A reduction in the transmitted acoustic wave amplitude was correlated with a decrease in the total number of ions in the pore water. The lowest acoustic wave amplitude occurred when the ionic strength in the pore water had reached a minimum value. Calculation of the electrostatic potential showed that the force of repulsion between beads was strongest when the acoustic wave amplitude was at its minimum and the double layer electrostatic interaction potential between the beads was at a maximum value. At longer times the acoustic wave velocity of the transmitted wave increased as the cementation progressed. These results suggest that the chemical interaction between the pore fluid and grain alters the strength or stiffness of grain-to-grain contacts, which in turn alters the elastic modulus of the sediment frame. The important implications of this work are the potential use of acoustic or seismic techniques to monitor ion exchange between pore-fluids and sediments in-situ.
Li Xun
Pyrak-Nolte Laura J.
No associations
LandOfFree
Acoustic monitoring of sediment-pore fluid interaction does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Acoustic monitoring of sediment-pore fluid interaction, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Acoustic monitoring of sediment-pore fluid interaction will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1096984