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Effect of compacton on chemistry of solutions expelled from montmorillonite clay saturated in sea water
Author(s) -
CHILINGARIAN GEORGE V.,
SAWABINI C. T.,
RIEKE HERMAN H.
Publication year - 1973
Publication title -
sedimentology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.494
H-Index - 108
eISSN - 1365-3091
pISSN - 0037-0746
DOI - 10.1111/j.1365-3091.1973.tb01617.x
Subject(s) - overburden , montmorillonite , compaction , geology , overburden pressure , pore water pressure , seawater , mineralogy , geotechnical engineering , chemistry , oceanography , organic chemistry
The total mineralization of solutions squeezed out of montmorillonite clay saturated in sea water was determined at different overburden pressures. The subsequent fractions of expelled solutions were also analysed for various anions (Cl − , SO 2‐ 4 , HCO − 3 , F − ) and cations (Na + , K + , Mg 2+ , Ca 2+ , B 3+ ). The results indicate that the concentrations of squeezed‐out solutions during the initial stages of compaction (at pressures up to 35 kg/cm 2 ) are slightly higher than that of interstitial solution present initially. The concentration of squeezed‐out solution goes through a maximum, or at least remains constant, before starting to decrease with increasing overburden pressure.