Dissolution and compaction of albite sand in distilled water and pH-buffered carboxylic acid solutions : experiments at 100 degrees and 160 degrees C /
500 mm) with distilled water, 0.07m acetate, and 0.07m
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| Format: | Thesis eBook |
| Language: | English |
| Published: |
[Place of publication not identified] :
[publisher not identified] ;
1995.
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| Subjects: | |
| Online Access: | Link to OAKTrust copy |
| Summary: | 500 mm) with distilled water, 0.07m acetate, and 0.07m ability of specific organic acid ligands to form both surface acetate+0.005m citrate solutions in a hydrothermal flow- acetate+0.005m citrate. In addition, the dissolution rate albite solubility. Consequently, any chemically-based and decrease with increasing strain in all pore fluids, and may be chemically assisted by the aqueous pore fluid. brittle mechanisms (fracture), at least at 100C. However, buffer; however, even small amounts of citrate species appear compaction was observed at 100 and 160'C at an effective complexes and aqueous complexes with Al. Time-dependent compositions that are near saturation with respect to albite. concentrations show no unequivocal evidence for differences) were similar in distilled water and the acetate dissolution kinetics were also examined. Compared to distilled water, Si-based dissolution rates are 2 times effects of organic acids on time-dependent compaction rates especially at 100C. Strain rates (corrected for strain Experimental studies were conducted using albite sand (250 - faster in 0.07m acetate and 5 times faster in 0.07m fluid chemistry and compaction were monitored to quantify the fluids during time-dependent compaction studies have grain breakage at grain contacts. Albite dissolution appears increases (=10%) when an effective pressure is applied, indicate that time-dependent compaction occurs primarily by interpretations of deformation mechanisms are severely limited. Textural data and the lack of supersaturated fluids of albite. The effects of stress and fluid chemistry on the pressure of 34.5 MPa. Strain rates increase with temperature probably due to increases in total surface area caused by sites. The dissolution rate is strongly affected by the supersaturation, primarily because of the uncertainty in The fluids may be slightly supersaturated, but silicon the time-dependent deformation is clearly thermally activated through system at conditions that simulate diagenesis. Pore- to be controlled by surface complexation reactions at Al to enhance compaction compared to the other fluids Pore- |
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| Item Description: | "Major subject: Geology". In title, symbol for degree and numerals are used. Vita. |
| Physical Description: | x, 68 leaves : illustrations ; 28 cm. Also available online. Issued also on microfiche from Lange Micrographics. |
| Bibliography: | Includes bibliographical references. |