coloration from bacteria on minerals?

journal > 2019 > Danda stream 丹大溪 Hot springs survey > coloration from bacteria on minerals?

Danda stream 丹大溪 Hot springs survey P2280467

coloration from bacteria on minerals?

Keywords: stream
Location: 23°45'5" N, 121°3'1" E, 0m; near: Puli, 埔里, map
Camera/lens: TG-4
Aperture: 2.8, Shutter speed: 1/640, Focal length: 4.5 mm, ISO: 100, Bias: 0
Date/Time: 2019:02:28 15:29:41
Average color: gray36