| Abstract: | Thermodynamic models of aqueous solutions have indicated that the mixing of seawater and calcite-saturated fresh groundwater can produce a water that is undersaturated with respect to calcite. Mixing of such waters in coastal carbonate aquifers could lead to significant amounts of limestone dissolution. The potential for such dissolution in coastal saltwater mixing zones is analyzed by coupling the results from a reaction simulation model (PHREEQE) with a variable density groundwater flow and solute transport model. Idealized cross sections of coastal carbonate aquifers are simulated to estimate the potential for calcite dissolution under a variety of hydrologic and geochemical conditions. Results show that limestone dissolution in mixing zones is strongly dependent on groundwater flux and nearly independent of the dissolution kinetics of calcite. -from Authors |
| Genre: | Article |
| ProdID: | 70015615 |
| Citation Author: | Sanford, W. E.; Konikow, L. F. |
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| Citation End Page: | 667 |
| Citation Issue: | 4 |
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| Citation Language: | English |
| Citation Larger Work Title: | Water Resources Research |
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| Citation Number Of Pages: | 13 |
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| Citation Search Results Text: | Simulation of calcite dissolution and porosity changes in saltwater mixing zones in coastal aquifers; 1989; Article; Journal; Water Resources Research; Sanford, W. E.; Konikow, L. F. |
| Citation Start Page: | 655 |
| Citation Volume: | 25 |
| Citation Year: | 1989 |
| Type: | citation/reference |
| Text: | Simulation of calcite dissolution and porosity changes in saltwater mixing zones in coastal aquifers; 1989; Article; Journal; Water Resources Research; Sanford, W. E.; Konikow, L. F. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/outside_thumb.jpg |
| Date Other: | Sun, 1 Jan 1989 00:00 -0600 |
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