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Dissolution Rate Constant of Carbonates under Natural Environments | ||
| Tikrit Journal of Pure Science | ||
| Article 1, Volume 15, Issue 3, 2010, Pages 84-90 | ||
| Author | ||
| Hazim A. Al-Kawaz | ||
| Abstract | ||
| Dissolution rate constant (K) of carbonates was determined by immersing a total of eight carbonate samples of Pila Spi Formation(Middle-Upper Eocene, 3 samples) and Fat'ha Formation (Middle Miocene, 5 samples) in Tigris River for a period of (8) months. Due to their very high dolomite contents, the Pila Spi samples did not show any detectable loss of weight and thus their dissolution rate constant (K) could not be determined. The dissolution rate constant (K) of Fat'ha samples was in the range from (0.24x10-5 m/s) to (0.56x10-5 m/s) with an average of (0.39x10-5 m/s). It has been observed that dissolution rate constant (K) increases with an increase in calcite (decrease in dolomite). On the other hand, there is an inverse relationship between dissolution rate constant (K) and the insoluble residue (I.R.). | ||
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