Rieck's principle

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The Rieck Ash principle describes that pressurized crystals or crystal regions preferably in solution go to non-pressurized. This principle of the pressure solution is named after Eduard Riecke (1845–1915), who published a work on the solubility of ice under uniform or directional pressure in 1894 . The principle was later extended to the solubility of rocks by Otto Mügge . The first work on the solubility of rocks and crystals under pressure was carried out by Henry Clifton Sorby in the middle of the 19th century.

During the diagenesis or metamorphosis of sediments , pressurized grains or grain areas are loosened and the chemical building blocks are released into the pore water of the sediment. The non-pressurized rock areas in the pressure shadow absorb these building blocks from the solution and become larger. The driving force for this process is the difference between the external tension and the pressure of the pore fluid, which creates a difference in the chemical potential of the dissolved substance.

Individual evidence

  1. ↑ Otto Mügge: About metamorphic processes in the crystalline slates. Kgl. Messages Ges. Wiss., Gesch. Mean Goettingen, 98-117, 1911.
  2. ↑ Dieter Richter: General Geology . 3. Edition. Walter de Gruyter, Berlin 1992, ISBN 3-11-010416-4 , p. 154 .
  3. ↑ Phase shift interference microscopy of load-induced dissolution / precipitation processes at the interfaces of halite and NaCl solution. , Dissertation on the topic with references to the Rieke principle.

literature

  • Riecke E .: About the equilibrium between a solid, homogeneously deformed body and a liquid phase, especially about the depression of the melting point by one-sided tension . Msg. Knowledge Göttingen / Math.-Phys. Kl., 1894.
  • Riecke E .: To lower the melting point by pulling or pushing on one side . Zbl. Min. Geol. Paleont, 1912.