Post-processing #34 |

Boardwalk along Yellowstone Lake, West Thumb Geyser Basin, Yellowstone National Park, Wyoming, August 4, 2010 (composite of 3 Pentax K10D photos using Autostitch)

West Thumb¹

Yellowstone Lake resembles the shape of a human hand (see map below); West Thumb is the large western bay that would be the thumb. The bay is a caldera within a caldera. It was formed by a volcanic eruption approximately 174,000 years ago. The resulting caldera later filled with water, forming an extension of Yellowstone Lake.

West Thumb is also the largest geyser basin on the shore of Yellowstone Lake—and its hydrothermal features lie under the lake too. The heat from these features can melt ice on the lake’s surface.

Reference:

1. National Park Service

Note:

Post-processing – Image editing to enhance the photo closer to what the eye “saw.” Images in this series are usually selected within a day or so of being edited and are either posted at the time or scheduled for posting at a later date.

Royalty free photos by Mike¹ – No. 7

Dane County Farmers Market Saturday on the Square, Madison, Wisconsin, June 2, 2018

Photo shared as public domain on Pixabay and Flickr as “Farm Fresh Rhubarb.”

1. Only photos specifically identified as such are public domain or creative commons on our pages. All other images are copyright protected or used under the provisions of fair use.

Royalty free photos by Mike¹ – No. 6

Dane County Farmers Market Saturday on the Square, Madison, Wisconsin, June 2, 2018

Photo shared as public domain at Pixabay and Flickr as “Funky Gourds.”

1. Only photos specifically identified as such are public domain or creative commons on our pages. All other images are copyright protected or used under the provisions of fair use.

Royalty free photos by Mike¹ – No. 5

Dane County Farmers Market Saturday on the Square, Madison, Wisconsin, June 2, 2018

Photo shared as public domain at Pixabay and Flickr as: Apple Cider Vinegar.

1. Only photos specifically identified as such are public domain or creative commons on our pages. All other images are copyright protected or used under the provisions of fair use.

Royalty free photos by Mike¹ – No. 4

Dane County Farmers Market Saturday on the Square, Madison, Wisconsin, June 2, 2018

Photo shared as public domain at Pixabay and Flickr as “fresh harvested tomatoes.”

1. Only photos specifically identified as such are public domain or creative commons on our pages. All other images are copyright protected or used under the provisions of fair use.

Royalty free photos by Mike¹ – No. 3

Dane County Farmers Market Saturday on the Square, Madison, Wisconsin, June 2, 2018

Photo shared as public domain at Pixabay and Flicker: green onion bunches.

1. Only photos specifically identified as such are public domain or creative commons on our pages. All other images are copyright protected or used under the provisions of fair use.

Royalty free photos by Mike¹ – No. 2

Dane County Farmers Market Saturday on the Square, Madison, Wisconsin, June 2, 2018

Photo shared as public domain at Pixabay and Flickr as  Market Fresh Rhubarb.

1. Only photos specifically identified as such are public domain or creative commons on our pages. All other images are copyright protected or used under the provisions of fair use.

Post-processing #33 |

Yellowstone Lake at Mary Bay, Yellowstone National Park, Wyoming, August 4, 2010  (Composite image of 3 Pentax K10D photos using Autostitch)

Yellowstone Lake Geology¹

Lake-bottom surveys (1999 to 2007) of Yellowstone Lake have confirmed that the north half of the lake is inside the Yellowstone Caldera.  The survey  also mapped “previously unknown features such as large hydrothermal explosion craters, siliceous spires, hundreds of hydrothermal vents and craters and fissures”  as well as “young previously unmapped faults, landslide deposits, and submerged older lake shorelines. These features are part of an undulating landscape shaped by rhyolitic lava flows that filled the caldera. The southern half of the lake lies outside the caldera and has been shaped by glacial and other processes. The floor of the Southeast Arm has many glacial features, similar to the glacial terrain seen on land in Jackson Hole, south of the park.”

“These new surveys give an accurate picture of the geologic processes shaping Yellowstone Lake and determine geologic influences affecting the present-day aquatic biosphere. For example, hydrothermal explosions formed craters at Mary Bay and Turbid Lake. Spires may form similarly to black smoker chimneys, which are hydrothermal features associated with oceanic plate boundaries.”

Reference:

1. National Park Service

Note:

Post-processing – Image editing to enhance the photo closer to what the eye “saw.” Images in this series are usually selected within a day or so of being edited and are either posted at the time or scheduled for posting at a later date.

Royalty free photos by Mike¹ – No. 1

Dane County Farmers Market Saturday on the Square, Madison, Wisconsin, June 2, 2018

Photo shared as public domain at Pixabay and Flickr as colorful carrots.

1. Only photos specifically identified as such are public domain or creative commons on our pages. All other images are copyright protected or used under the provisions of fair use.