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Microbes and Hot Springs

I noticed that this is my 300th picture from the United States, so I guess that deserves something special and fortunately, finding something special in Yellowstone National Park is not a particularly difficult task. This is still a photo from the Upper Geyser Basin, which also includes Old Faithful. Seen here is not a geyser, but a microbial mat, often found near hot springs. In summer the microbes in the mineral-rich water produce the most vivid orange, yellow and red colours. The blue pools in the right hand side background together form Doublet Pool, a hot spring of 2.4 metres deep and a temperature of about 90 degrees Celsius.

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Exif Data:
Make: SONY
Model: DSC-HX400V
Software: PaintShop Pro 16,00
Exposure Time: 1/2000 sec
F-Stop: f/4.0
ISO Speed Ratings: 80
Focal Length: 430/100 mm
Date Taken: 2019-07-30 14:25
Metering Mode: Pattern
Flash: Flash did not fire, compulsory flash mode
File Size: 1929 kb

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Additional Photos by Lars Zwemmer (Tue) Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 12047 W: 57 N: 21142] (79554)
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