1. Figure 1 Porewater profiles of (A) dissolved sulfate concentration versus depth in the Whitworth Lagoon sediment and (B) sulfate/chloride ratios versus depth.
From: Ferric hydroxide and ferric hydroxysulfate precipitation by bacteria in an acid mine drainage lagoon
FEMS Microbiol Rev. 1997;20(3-4): doi: /j tb00320.x
FEMS Microbiol Rev | © 1997 Federation of European Microbiological Societies.

2. Figure 2 Porewater profiles of (A) dissolved iron concentration versus depth in the Whitworth Lagoon sediment and (B) dissolved zinc versus depth.
From: Ferric hydroxide and ferric hydroxysulfate precipitation by bacteria in an acid mine drainage lagoon
FEMS Microbiol Rev. 1997;20(3-4): doi: /j tb00320.x
FEMS Microbiol Rev | © 1997 Federation of European Microbiological Societies.

3. Figure 3 EDS spectra of the mineralised capsule associated with bacterial cells at the sediment/water interface (0 cm depth). Cu peak from supporting grid and Cr is due to contamination.
From: Ferric hydroxide and ferric hydroxysulfate precipitation by bacteria in an acid mine drainage lagoon
FEMS Microbiol Rev. 1997;20(3-4): doi: /j tb00320.x
FEMS Microbiol Rev | © 1997 Federation of European Microbiological Societies.

4. Figure 4 Transmission electron micrographs of stained bacterial cells collected from sediments of the Whitworth Lagoon. A: Individual cell with fine-grained ferric hydroxysulfate precipitates on outer cell wall. B: Individual cell where ferric hydroxysulfate grains have coalesced into a dense, mineralised epicellular matrix. Micrographs are magnified times.
From: Ferric hydroxide and ferric hydroxysulfate precipitation by bacteria in an acid mine drainage lagoon
FEMS Microbiol Rev. 1997;20(3-4): doi: /j tb00320.x
FEMS Microbiol Rev | © 1997 Federation of European Microbiological Societies.

5. Figure 5 EDS spectra of the epicellular mineral precipitates associated with bacterial cells at a depth of 15 cm.
From: Ferric hydroxide and ferric hydroxysulfate precipitation by bacteria in an acid mine drainage lagoon
FEMS Microbiol Rev. 1997;20(3-4): doi: /j tb00320.x
FEMS Microbiol Rev | © 1997 Federation of European Microbiological Societies.

6. Figure 6 EDS spectra of the epicellular mineral precipitates associated with bacterial cells at a depth of 30 cm.
From: Ferric hydroxide and ferric hydroxysulfate precipitation by bacteria in an acid mine drainage lagoon
FEMS Microbiol Rev. 1997;20(3-4): doi: /j tb00320.x
FEMS Microbiol Rev | © 1997 Federation of European Microbiological Societies.