Ok, it’s Saturday, so here’s a 2-fer to go with the previous post.
From one of the National Park Service’s pages:
“Imagine you are here in the late 1800s, a time when yellow filamentous bacteria was prominent. What colors are present today?
This spring occasionally goes dormant for brief periods of time. Vibrant pinks and neons are sometimes seen.
A network of fractures and fissures form the plumbing system that allows hot water from underground to reach the surface at Mammoth Hot Springs. Small earthquakes may keep the plumbing open. The water comes from rain and snow falling on surrounding mountains and seeping deep into the earth where it is heated.
The volcanic heat source for Mammoth Hot Springs [in Yellowstone National Park] remains somewhat of a mystery. Scientists have proposed two sources: the large magma chamber underlying the Yellowstone Caldera or a smaller heat source closer to Mammoth.
For hundreds of years, Shoshone and Bannock people collected minerals from the Mammoth Hot Springs terraces for white paint.
Travertine terraces are formed from limestone (calcium carbonate). Water rises through the limestone, carrying high amounts of dissolved calcium carbonate. At the surface, carbon dioxide is released and calcium carbonate is deposited, forming travertine, the chalky white rock of the terraces. Due to the rapid rate of deposition, these features constantly and quickly change.”
The images you see here reflect Canary Spring seen during a winter 2022 sunrise and a summer 2018 sunrise. Aside from the colors and lighting, what other – if any – differences do you see? I saw some much brighter colors during the summer on the terraces of Canary Spring. Aside from anything else, I’ve noticed that colors during the winter seem to be much more muted and darker, as well. I saw this not only here at Canary Spring, but also at Morning Glory Pool and Doublet Pool at Upper Geyser Basin.
FYI, the winter image was captured with my Fujifilm GFX 100s and 23mm prime lens, and the summer image was captured with a Canon 5dsr and 24-70mm zoom lens.
Copyright Rebecca L. Latson, all rights reserved.