The green tinge is bacteria. The close-up is shown to the right. Field of View in this photomicrograph is 0.65 mm. The small rhythmic laminations are approximately 20 microns wide. Temperature and composition of the waters and calcite were measured.
Results indicate that temperature plays a signficant role in the geochemistry of the flow path.
We hypothesize that CO 2 degassed at a slower rate at lower temperatures. Temperature and alkalinity variations during the 24 hour sampling period.