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Petrographic microscoope and SEM images of flat-polished thin sections of chert / carbonate chert immersed in various
solutions analogous to ASTM C 289
Control NaOH KOH
Ca(OH)2 K-Ac K-Ac & Ca(OH)2
Plane polarized transmitted light images
Control NaOH KOH
Ca(OH)2 K-Ac K-Ac & Ca(OH)2
Crossed polarized transmitted light images
Control NaOH KOH
Ca(OH)2 K-Ac K-Ac & Ca(OH)2
Epifluorescent images
Control NaOH KOH
Ca(OH)2 K-Ac K-Ac & Ca(OH)2
Elemental maps for silicon
Control NaOH KOH
Ca(OH)2 K-Ac K-Ac & Ca(OH)2
Elemental maps for sodium
Control NaOH KOH
Ca(OH)2 K-Ac K-Ac & Ca(OH)2
Elemental maps for potassium
Control NaOH KOH
Ca(OH)2 K-Ac K-Ac & Ca(OH)2
Elemental maps for calcium
SEM images of powder mounts of chert / carbonate chert immersed in various solutions analogous to ASTM C 289
Control
NaOH
KOH
Ca(OH)2
K-Ac & Ca(OH)2
K-Ac
