Bifurcation of the Ostwald-Liesegang supersaturation-nucleation-depletion cycle

Details Bifurcation of the Ostwald-Liesegang supersaturation-nucleation-depletion cycle Bifurcation of the Ostwald-Liesegang supersaturation-nucleation-depletion cycle

Oct 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990esrv...29..163s&link_type=abstract

Earth Science Reviews, Volume 29, Issue 1-4, p. 163-173.

Physics

4

Scientific paper

A new formulation of the Ostwald supersaturation-nucleation-depletion cycle is adopted to model precipitate banding in rocks. In a special limiting case, the system is shown to support a propagating steady deposition pulse. The limit of existence is determined analytically for a simple model analogue of a pyrite/goethite system. Using numerical simulations, an unsteady pulse of mineral deposition is obtained and is shown to develop a variety of patterns with an appropriate change in the system parameters-apparently showing that the steady pulse obtained analytically is unstable. The domains of existence of unsteady pulse, undulatory patterns and discrete bands are determined.

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