Fig. 1From: Rippled scales in a geothermal facility in the Bavarian Molasse Basin: a key to understand the calcite scaling processRipple scale sample collected from the inlet of the heat exchanger. The sample has a calcite composition. Some oil contained in the thermal water is incorporated in the scale causing the black color. The shape of the ripples with a luv and lee side points to current flow ripplesBack to article page