Salt karst, solution phenomena occurring in rock salt by the action of groundwater.
Many theories have been proposed to explain their formation, including meteorite impact, comet impact, wind action, water table fluctuations, solution phenomena, and even fish nests (Ross 1987), but no general consensus has yet been reached.
It would therefore appear from this test that the dissolution phenomena (dissolution of the calcite, plagioclase) are rather of the free face dissolution type and that the pressure solution phenomena described by some authors (e.g. Polak et al. 2003; Yasuhara et al. 2006) were limited.
Spectrometric and FIB analyses performed over 5 weeks from sample preparation revealed a great stability of the solution (no phenomena of nanotube aggregation or precipitation).
At low potentials (depending on the electrolyte solution involved), phenomena such as exfoliation and amorphization of the graphite electrodes can be observed.
Decompression sickness (DCS) is caused by gas coming out of the solution, a phenomena that normally requires supersaturation of inert gases in the organism.
By applying various numerical analyses such as phase plane, Poincaré map and power spectrum analysis, a variety of periodic solutions and phenomena of the chaotic motion are observed.
When freshly etched samples of various types of copper were exposed in moderately acid, aerated chloride solutions, two phenomena were observed.
Dynamical behaviors of the PMSM, such as periodic solutions, chaos phenomena, phase portraits, bifurcation diagrams, Lyapunov exponents, chaos anti-control and chaos synchronization, have been widely studied in [20, 21].
Typically, in our analysis flow, we start with PCA and ICA to identify the parameter space; once the region of interesting solutions or phenomena is identified, we perform Bayesian de-mixing.
Our results indicate that (i) calibration using in situ data alone may yield multiple plausible solutions, a phenomenon well known to hydrologists; and (ii) GRACE data helped further constrain model parameters over the study period and, thus, may be continuously assimilated, among other sources of data, for enhancing existing regional groundwater models.
