Fig. 8From: Rippled scales in a geothermal facility in the Bavarian Molasse Basin: a key to understand the calcite scaling processBoundaries for ripple-forming flow velocities U based on calcite particle size \(d_{50}\) (scenario 1 between dashed lines). \(\hbox {T}\,=\,139^{\,\circ } \hbox {C}\), \(\nu \,=\,2.19\, \cdot \,10^{-7} \, {\hbox {m}}^2/\hbox {s}\)Back to article page