Enhanced mobilization of major inorganics during coalification of peats
- Univ. of Southwestern Louisiana, Lafayette, LA (United States)
- Univ. of South Carolina, Columbia, SC (United States)
- Geological Survey, Reston, VA (United States)
Release patterns for Na, Cl, Ca, Mg, and Si from Cladium, Rhizophora, and Cyrilla peats have been determined by means of experiments to 60{degrees}C and 2100 psi. Where pore solution concentrations are high, significant mobilization is directly through loss of pore solutions. Changes in organic structures during early stage coalification may also mobilize exchangeable ions. Attack on solid inorganic phases begins during peatification and may be accelerated at temperatures above 40{degrees}C by increased organic acid production. Respective maximum concentrations for acetate, formate, and oxalate are around 900, 700, and 70 mg/l in the Cyrilla experiments at 60{degrees}C. Enhanced concentrations of Si, Al and other inorganics may result from these.
- OSTI ID:
- 126565
- Report Number(s):
- CONF-950402--
- Country of Publication:
- United States
- Language:
- English
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