Interstitial-water chemistry of ODP Leg 113 sites, supplement to: Egeberg, Per Kristian; Aagaard, Per; Smalley, P Craig (1990): Major element and oxygen isotope studies of Interstitial Waters: ODP Leg 113. In: Barker, PF; Kennett, JP; et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 113, 135-146

Per Kristian Egeberg, Per Aagaard & P Craig Smalley
Variations in the distribution of major elements and stable oxygen isotopes in ODP Leg 113 pore water are not related to lithology and thus appear to be controlled by minor constituents. Petrographic observations and geochemical considerations indicate that alteration of calc-alkalic volcanic material dispersed in the sediment is an important process. A diagenetic reaction is constructed that involves transformation of volcanic glass into smectite, zeolite (represented by phillipsite), chert, and iron sulfide. Mass balance calculations...
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