Factors controlling growth of modern tufa: results of a field experiment - Tufas and Speleothems: Unravelling the Microbial and Physical Controls - page 166

Fig. 18. (a) Micrite lamina overlying sparry crystals, L´ ˇky top point, tufa formed on limestone tablet exposed between
August and November 2002; (b) clotted micrite, L´ ˇky top point, upper part of the sample presented in a; (c) sparry
crystals displaying competitive growth rule covered with micrite, the smooth surface (arrow) is the basement of sample
visible due to detaching of the tablet, L´ˇky top point, tufa formed on copper tablet exposed between August and
November 2002; (d) micrite surrounds fan of sparry crystals, L´ ˇky top point tufa formed on limestone tablet
exposed between August and November 2002; (e) sparry crystal engulfed by micrite, arrow indicates EPS, tufa surface,
H´j dam site, October 2003; (f ) clotted micrite rich in diatoms, the same sample as in c; a, b thin sections, c - f - SEM
images, e - lyophilized sample.