1985/10/01 by F. T. Manheim, Frank T. Manheim, E. E. Peck +2
Chemical Engineering · Chemistry · Earth and Planetary Sciences · #Analytical Chemistry and Sensors #Analytical chemistry methods development #Chemistry #Chloride #Chromatography #Distilled water #Geochemistry #Geology #Geotechnical engineering #Groundwater #Groundwater and Isotope Geochemistry #Igneous rock #Leaching (pedology) #Mineralogy #Seawater #Soil science #Soil water
paper · doi:10.2118/12724-pa
crossref issued 1985/10/01 · crossref published 1985/10/01 · crossref published-online 1985/10/01 · crossref published-print 1985/10/01 · openalex publication_date 1985/10/01 · crossref created 2007/12/07 · crossref deposited 2022/02/24 · openalex created_date 2025/10/10 · openalex updated_date 2026/06/26 · crossref indexed 2026/08/05
Abstract We have devised a technique for determining chloride in interstitial water of consolidated rocks. Samples of rocks ranging from 5 to 10 g are crushed and sieved under controlled conditions and then ground with distilled water to submicron size in a closed mechanical mill. After ultra-centrifugation, chloride content is determined by coulo-metric titration. The chloride concentrations and total pore-water concentrations, obtained earlier from the same samples by low-temperature vacuum desiccation, are used to arrive at the "original" pore-water chloride concentrations by a simple iteration procedure. Interstitial chlorinity results obtained from Cretaceous and Jurassic strata in the Gulf of Mexico coastal areas ranged from 20 to 100 g/kg CI with reproducibility approaching ±1 %. We have also applied the technique to igneous and metamorphic bedrocks as well as ocean basalts containing 1 % water or less. Chloride values ranging from 6.7 to 20 g/kg with a reproducibility of about 5% were obtained.