A Light Detection and Ranging (LiDAR) shaded relief image overlaid on an aerial imagery basemap. The Sulphur Hills, part of the Sour Creek Resurgent Dome, are visible in the upper half of the image, while the floodplain and meanders of Pelican Creek are visible at the bottom.
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Images related to Yellowstone Volcano Observatory.
A Light Detection and Ranging (LiDAR) shaded relief image overlaid on an aerial imagery basemap. The Sulphur Hills, part of the Sour Creek Resurgent Dome, are visible in the upper half of the image, while the floodplain and meanders of Pelican Creek are visible at the bottom.
Geology of Yellowstone Map zoomed into the Lower Geyser Basin. This view shows a park-wide geologic map overlaid on a shaded relief layer from a digital elevation model. Red diamonds and black circles show geysers and gas sample locations, respectively.
Geology of Yellowstone Map zoomed into the Lower Geyser Basin. This view shows a park-wide geologic map overlaid on a shaded relief layer from a digital elevation model. Red diamonds and black circles show geysers and gas sample locations, respectively.
![graphs showing the difference between earthquake types](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/thumbnails/image/Figure%202_6.jpg?itok=qFUQ3dOk)
Schematic diagram illustrating the difference between a main shock with aftershocks (top), a sequences of foreshocks, main shock, and aftershocks (middle), and a seismic swarm (bottom). Adapted from manuscript by Farrell and others, 2009.
Schematic diagram illustrating the difference between a main shock with aftershocks (top), a sequences of foreshocks, main shock, and aftershocks (middle), and a seismic swarm (bottom). Adapted from manuscript by Farrell and others, 2009.
![Map of earthquakes greater than M1.5 that occurred between March 1 and May 12, 2020, in the Intermountain West.](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/thumbnails/image/Figure%201_8.jpg?itok=mJNBw3J5)
Map of earthquakes greater than M1.5 that occurred between March 1 and May 12, 2020, in the Intermountain West. The main shock-aftershock sequences in central Idaho and near Salt Lake City are labeled. Orange dots are earthquakes that occurred within 24 hours, and yellow 1 week, of the map being generated (May 12, 2020)
Map of earthquakes greater than M1.5 that occurred between March 1 and May 12, 2020, in the Intermountain West. The main shock-aftershock sequences in central Idaho and near Salt Lake City are labeled. Orange dots are earthquakes that occurred within 24 hours, and yellow 1 week, of the map being generated (May 12, 2020)
![Screen capture of Yellowstone Volcano Observatory website in 2001](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/thumbnails/image/Screen%20Shot%202020-05-07%20at%2012.48.43%20PM.png?itok=7sp3spPV)
Archive view of the Yellowstone Volcano Observatory website in 2001.
Archive view of the Yellowstone Volcano Observatory website in 2001.
![Screen capture of Yellowstone Volcano Observatory website in 2009](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/thumbnails/image/Screen%20Shot%202020-05-07%20at%204.29.16%20PM.png?itok=BWYxSMJ6)
Archive view of the Yellowstone Volcano Observatory website in 2009.
Archive view of the Yellowstone Volcano Observatory website in 2009.
![Mobile view of the Yellowstone Volcano Observatory website.](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/thumbnails/image/Screen%20Shot%202020-05-08%20at%203.35.21%20PM.png?itok=HZc9_b6M)
Mobile view of the Yellowstone Volcano Observatory website.
Mobile view of the Yellowstone Volcano Observatory website.
![Sunset lake in Black Sand Basin of Yellowstone National Park](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/thumbnails/image/sunset%20lake%202.jpg?itok=uvgEuwuN)
Sunset lake in Black Sand Basin of Yellowstone National Park
Sunset lake in Black Sand Basin of Yellowstone National Park
![Grand Prismatic Spring in Midway Geyser Basin Yellowstone](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/thumbnails/image/grand_prismatic.jpg?itok=JsQl6b27)
Grand Prismatic Spring in Midway Geyser Basin Yellowstone National Park on October 19, 2017.
Grand Prismatic Spring in Midway Geyser Basin Yellowstone National Park on October 19, 2017.
![relationship between isotopes in hydrothermal gases from Yellowstone and Iceland](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/thumbnails/image/img8008.jpg?itok=lepv9EYy)
The relationship between Δ30 and N2/3He ratios in hydrothermal gases from Iceland and Yellowstone. Δ30 and N2/3He ratios are shown for samples collected from gases in Iceland (yellow circles) and Yellowstone (red circles). The Yellowstone mantle-endmember is arguably indistinguishable in terms of N2/3He from the convecting upper mantle (grey diamonds).
The relationship between Δ30 and N2/3He ratios in hydrothermal gases from Iceland and Yellowstone. Δ30 and N2/3He ratios are shown for samples collected from gases in Iceland (yellow circles) and Yellowstone (red circles). The Yellowstone mantle-endmember is arguably indistinguishable in terms of N2/3He from the convecting upper mantle (grey diamonds).
![March 31, 2020 M6.5 Stanley Idaho earthquake](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/thumbnails/image/img8003.png?itok=pLH-336y)
Highly sensitive instruments installed deep below the ground surface yield great records of earthquakes near and far. The March 31, 2020, magnitude 6.5 Stanley, Idaho, earthquake shows up very clearly in borehole strainmeter station B944's four different sensors.
Highly sensitive instruments installed deep below the ground surface yield great records of earthquakes near and far. The March 31, 2020, magnitude 6.5 Stanley, Idaho, earthquake shows up very clearly in borehole strainmeter station B944's four different sensors.
![March 31, 2020 M6.5 Stanley Idaho earthquake station download location](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/thumbnails/image/img8002.jpg?itok=t6SLArC8)
For every major earthquake in the U.S., UNAVCO downloads high-rate data from all nearby GPS/GNSS stations. The downloads for the March 31, 2020, magnitude 6.5 Stanley, Idaho, earthquake include more than 20 stations in and around Yellowstone. Figure by Christine Puskas (UNAVCO).
For every major earthquake in the U.S., UNAVCO downloads high-rate data from all nearby GPS/GNSS stations. The downloads for the March 31, 2020, magnitude 6.5 Stanley, Idaho, earthquake include more than 20 stations in and around Yellowstone. Figure by Christine Puskas (UNAVCO).
Imperial Geyser hot spring pool in Yellowstone National Park is about 30 m (about 100 ft) across and contains alkaline-Cl waters with a steam vent in the pool and mudpots outside the pool area (in the upper right part of this photo). USGS Photo by Pat Shanks, 2019.
Imperial Geyser hot spring pool in Yellowstone National Park is about 30 m (about 100 ft) across and contains alkaline-Cl waters with a steam vent in the pool and mudpots outside the pool area (in the upper right part of this photo). USGS Photo by Pat Shanks, 2019.
![Annie Carlson, Research Permitting Coordinator for Yellowstone National Park during 2017–2023, during a winter ski expedition in the park](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/media/images/Carlson_skiing.jpeg?itok=0viqkf_j)
Annie Carlson, Research Permitting Coordinator for Yellowstone National Park during 2017–2023, during a winter ski expedition in the park
linkAnnie Carlson, Research Permitting Coordinator for Yellowstone National Park during 2017–2023, during a winter ski expedition in the park. National Park Service photo by Jon Nicholson, January 2020.
Annie Carlson, Research Permitting Coordinator for Yellowstone National Park during 2017–2023, during a winter ski expedition in the park
linkAnnie Carlson, Research Permitting Coordinator for Yellowstone National Park during 2017–2023, during a winter ski expedition in the park. National Park Service photo by Jon Nicholson, January 2020.
![Image of Yellowstone Lake showing location of core YL16-2C](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/media/images/Figure1_Brown_CalderaC.jpg?itok=jFrj059o)
A digital elevation map of Yellowstone National Park (left) with the location of Yellowstone Lake indicated by the white box. Satellite image (right) of the study site with collection location of core YL16-2C shown by the red circle. Map was originally published in Sabrina Brown’s dissertation (2019).
A digital elevation map of Yellowstone National Park (left) with the location of Yellowstone Lake indicated by the white box. Satellite image (right) of the study site with collection location of core YL16-2C shown by the red circle. Map was originally published in Sabrina Brown’s dissertation (2019).
![Sabrina Brown collecting samples from Yellowstone Lake core YL16-2C](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/media/images/Figure2_Brown_CalderaC.jpg?itok=i0yQnlv7)
Sabrina Brown collecting samples from Yellowstone Lake core YL16-2C at the National Lacustrine Core Facility (LacCore) at the University of Minnesota.
Sabrina Brown collecting samples from Yellowstone Lake core YL16-2C at the National Lacustrine Core Facility (LacCore) at the University of Minnesota.
![Several adult wetsalts tiger beetles hunting and basking on and around an alkaline hot spring near Midway Geyser Basin in Yellowstone National Park](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/media/images/C%20haemorrhagica%20adults%2C%20RC_2181b%20Permit%208100%20%282019%20RKD%20Peterson%29.jpg?itok=Up0vfJpM)
Several adult wetsalts tiger beetles hunting and basking on and around an alkaline hot spring near Midway Geyser Basin in Yellowstone National Park. Photo by Robert K. D. Peterson, 2019.
Several adult wetsalts tiger beetles hunting and basking on and around an alkaline hot spring near Midway Geyser Basin in Yellowstone National Park. Photo by Robert K. D. Peterson, 2019.
![Box diagram and map showing sources and fate of geothermal solutes in the Yellowstone River](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/media/images/solute%20figure.jpg?itok=b1PLo5nc)
The Yellowstone River is divided into five reaches (labeled and color-coded): Yellowstone Lake, Hayden Valley, Grand Canyon of the Yellowstone, Tower–Gardner, and Mammoth. Monitoring stations (yellow dots on map) between each reach of the river reaches allow geochemists to measure river composition and then determine the sources of chloride (Cl) and other solu
The Yellowstone River is divided into five reaches (labeled and color-coded): Yellowstone Lake, Hayden Valley, Grand Canyon of the Yellowstone, Tower–Gardner, and Mammoth. Monitoring stations (yellow dots on map) between each reach of the river reaches allow geochemists to measure river composition and then determine the sources of chloride (Cl) and other solu
![Mineral stability diagram showing minerals that are stable under changing temperature and dissolved silica concentrations that are found at and just beneath the floor of Yellowstone Lake](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/media/images/YLake%20Mineral%20stability.jpg?itok=E5glYbPY)
Mineral stability diagram showing minerals that are stable under changing temperature and dissolved silica concentrations at and just beneath the floor of Yellowstone Lake
linkMineral stability diagram showing minerals that are stable under changing temperature and dissolved silica concentrations that are found at and just beneath the floor of Yellowstone Lake. Two important points illustrated by this diagram are: (1) the minerals that are stable when reacted with vapor-dominated fluids (kaolinite, boehmite) differ substantially fro
Mineral stability diagram showing minerals that are stable under changing temperature and dissolved silica concentrations at and just beneath the floor of Yellowstone Lake
linkMineral stability diagram showing minerals that are stable under changing temperature and dissolved silica concentrations that are found at and just beneath the floor of Yellowstone Lake. Two important points illustrated by this diagram are: (1) the minerals that are stable when reacted with vapor-dominated fluids (kaolinite, boehmite) differ substantially fro
![Alkaline hot spring outflow channel in the Biscuit Basin with a wide array of phototrophic microbial community textures](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/media/images/Figure%202%20phototroph%20textures.jpg?itok=8ZIpBcwp)
A wide array of phototrophic microbial community textures exhibited in an alkaline (pH ~8.5) hot spring outflow channel in the Biscuit Basin, including thick mats, toadstools, ropes, and pinnacles. The differences in color are due to pigments (chlorophylls, bacteriochlorophylls, and carotenoids) produced by phototrophic microorganisms.
A wide array of phototrophic microbial community textures exhibited in an alkaline (pH ~8.5) hot spring outflow channel in the Biscuit Basin, including thick mats, toadstools, ropes, and pinnacles. The differences in color are due to pigments (chlorophylls, bacteriochlorophylls, and carotenoids) produced by phototrophic microorganisms.
![Sapphire Pool, in the Biscuit Basin area of the Upper Geyser Basin, Yellowstone National Park](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/masonry/public/media/images/FIgure%201%20Sapphire%20Pool.jpg?itok=8eM3AKgh)
Sapphire Pool, an alkaline (pH ~7.5) spring in the Biscuit Basin area of the Upper Geyser Basin, Yellowstone National Park.
Sapphire Pool, an alkaline (pH ~7.5) spring in the Biscuit Basin area of the Upper Geyser Basin, Yellowstone National Park.