Slow cooling of a basaltic lava flow that was erupted about 500,000 years ago resulted in the formation of hexagonal columns at Sheepeater Cliff, in Yellowstone National Park.
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Sheepeater Cliff, in Yellowstone National Park
Slow cooling of a basaltic lava flow that was erupted about 500,000 years ago resulted in the formation of hexagonal columns at Sheepeater Cliff, in Yellowstone National Park.
Sunrise at Bosque Del Apache National Wildlife Refuge
Scenic view of Bosque Del Apache National Wildlife Refuge.
Scenic view of Bosque Del Apache National Wildlife Refuge.
Sunrise at Bosque Del Apache National Wildlife Refuge
Scenic view of Bosque Del Apache National Wildlife Refuge.
Scenic view of Bosque Del Apache National Wildlife Refuge.
Sunrise at Bosque Del Apache National Wildlife Refuge
Scenic view of Bosque Del Apache National Wildlife Refuge.
Scenic view of Bosque Del Apache National Wildlife Refuge.
Swath bathymetric map of the Cape Fear submarine slide
Swath bathymetric map of the Cape Fear submarine slide, the largest slide on the US Atlantic coast. Data were collected on the R/V Atlantis in 2003.
Swath bathymetric map of the Cape Fear submarine slide, the largest slide on the US Atlantic coast. Data were collected on the R/V Atlantis in 2003.
Unfinished Bridge at Lecompton
Kansas River at Lecompton, Kansas, following the 1951 flood (reproduced from McCrae, 1954).
Kansas River at Lecompton, Kansas, following the 1951 flood (reproduced from McCrae, 1954).
Water quality sampling on San Francisco Bay
USGS conducts water quality sampling to describe changes in water quality along the deep channel of the San Francisco Bay-Delta system. Sampling includes continuious sampling and discrete sampling. Here a water discrete water sample is collected using a Niskin sampler at sunset in north San Francisco Bay.
USGS conducts water quality sampling to describe changes in water quality along the deep channel of the San Francisco Bay-Delta system. Sampling includes continuious sampling and discrete sampling. Here a water discrete water sample is collected using a Niskin sampler at sunset in north San Francisco Bay.
Southern California Neighborhood Scarred by Wildfire
Southern California neighborhood scarred by wildfire.
Southern California neighborhood scarred by wildfire.
PubTalk 12/2003 — What's Happening to Alaska's Glaciers?
Their Dynamic Response to Changing Climate and Other Factors
by Bruce F. Molnia, Research Geologist
Their Dynamic Response to Changing Climate and Other Factors
by Bruce F. Molnia, Research Geologist
Long Island farm irrigation rig
Long Island sod farm irrigation rig
Long Island sod farm irrigation rig
Callicnectes Toxotes
Callicnetes toxotes, ventral view.
Callicnetes toxotes, ventral view.
Cardisoma Crassum
Cardisoma crassum, reproductive organ.
Cardisoma crassum, reproductive organ.
Gecarcinus Cuadratus
Gecarcinus cuadratus, ventral view.
Gecarcinus cuadratus, ventral view.
Gecarcinus Cuadratus
Gecarcinus cuadratus, dorsal view.
Gecarcinus cuadratus, dorsal view.
Gecarcinus Cuadratus
Gecarcinus cuadratus, frontal view.
Gecarcinus cuadratus, frontal view.
Pacific lamprey (Lampetra tridentata)
Larval Pacific lamprey collected from the upper Umatilla River in northeastern Oregon.
Larval Pacific lamprey collected from the upper Umatilla River in northeastern Oregon.
Sally lightfoot crab (Grapsus grapsus)
Two specimens of Grapus grapsus, dosal view and ventral view.
Two specimens of Grapus grapsus, dosal view and ventral view.
PubTalk 11/2003 — Clean Power from the Earth's Heat
The Present and Future of Geothermal Energy
by John Sass, Geophysicist
The Present and Future of Geothermal Energy
by John Sass, Geophysicist
Research Vessel Polaris
San Fracisco Bay, CA; Amy Little on Research Vessel Polaris, sampling for water quality constitutents.
San Fracisco Bay, CA; Amy Little on Research Vessel Polaris, sampling for water quality constitutents.
Gila Monster
Gila monsters are one of only two venomous lizard species in the world. They live in the southwestern U.S. and in Mexico. This video short features USGS Emeritus Research Ecologist, Cecil Schwalbe describing details of Gila monster biology and ecology and how he survived a very painful Gila monster bite.
By
Gila monsters are one of only two venomous lizard species in the world. They live in the southwestern U.S. and in Mexico. This video short features USGS Emeritus Research Ecologist, Cecil Schwalbe describing details of Gila monster biology and ecology and how he survived a very painful Gila monster bite.
By
Nearly continuous spattering from west vent of West Gap Pit
Nearly continuous spattering from west vent of West Gap Pit, and sporadic spatter bursting from tall hornito to left. Heaving pond of lava between camera and vent. Hand-held camera, so a bit shaky. Note especially the symmetrical burst from hornito at about 15 seconds. Noise is reasonable facsimile of the real thing, emphasizing the treble.
Nearly continuous spattering from west vent of West Gap Pit, and sporadic spatter bursting from tall hornito to left. Heaving pond of lava between camera and vent. Hand-held camera, so a bit shaky. Note especially the symmetrical burst from hornito at about 15 seconds. Noise is reasonable facsimile of the real thing, emphasizing the treble.