Close-up of a stalagmite surface in Luray Caverns, Virgina.
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Stalagmite Texture
Close-up of a stalagmite surface in Luray Caverns, Virgina.
PubTalk 11/2006 — Drills, Spills, and Chills
The inside story on USGS estimates of Alaskan oil and gas resources
by Ken Bird and Rick Stanley, Geologists
The inside story on USGS estimates of Alaskan oil and gas resources
by Ken Bird and Rick Stanley, Geologists
Steve Peterson making a stream discharge measurement.
USGS Nebraska Water Science Center Elkhorn-Loup Model project chief, Steve Peterson, making a stream discharge measurement. The project collected hundreds of discharge measurements in 2006 to determine base flow in the study area.
USGS Nebraska Water Science Center Elkhorn-Loup Model project chief, Steve Peterson, making a stream discharge measurement. The project collected hundreds of discharge measurements in 2006 to determine base flow in the study area.
Fall Colors Along the Apalachicola River
View of trees in fall color and evening light along the Apachicola River at Torreya State Park.
View of trees in fall color and evening light along the Apachicola River at Torreya State Park.
Giant sequoia grove showing char marks
Giant sequoias on a slope, with several showing marks of fires the trees have survived.
Giant sequoias on a slope, with several showing marks of fires the trees have survived.
Flooding on Swiftcurrent Creek at Many Glaciers, Montana
Flooding on Swiftcurrent Creek at Many Glaciers, Montana
Flooding on Swiftcurrent Creek at Many Glaciers, Montana
Platte River near Alda, Nebraska at sunset.
Platte River near Alda, Nebraska at sunset, Nov. 6, 2006.
Platte River near Alda, Nebraska at sunset, Nov. 6, 2006.
Station 08026000 Sabine River near Burkeville, Tex.
U.S. Geological Survey streamflow-gaging station 08026000 Sabine River near Burkeville, Texas, photograph looking upstream from bridge on State Highway 63, November 9, 2006.
SIR 2009–5174
U.S. Geological Survey streamflow-gaging station 08026000 Sabine River near Burkeville, Texas, photograph looking upstream from bridge on State Highway 63, November 9, 2006.
SIR 2009–5174
Death Valley
Field trip to Death Valley. John Mars (USGS), Simon Hook (JPL), C.R. Souza Filho (University of Campinas), Giles Marion (Desert Research Institute)
Field trip to Death Valley. John Mars (USGS), Simon Hook (JPL), C.R. Souza Filho (University of Campinas), Giles Marion (Desert Research Institute)
Death Valley
Field trip to Death Valley. Jim Crowley (USGS), Giles Marion (Desert Research Institute), John Mars (USGS).
Field trip to Death Valley. Jim Crowley (USGS), Giles Marion (Desert Research Institute), John Mars (USGS).
Death Valley
Field trip to Death Valley. John Mars (USGS). Giles Marion (Desert Research Institute), Jim Crowley (USGS), Simon Hook (JPL).
Field trip to Death Valley. John Mars (USGS). Giles Marion (Desert Research Institute), Jim Crowley (USGS), Simon Hook (JPL).
Baling Hay
Loading hay from a field in East Texas.
Loading hay from a field in East Texas.
Baling Hay
Loading hay from a field in East Texas.
Loading hay from a field in East Texas.
Lake Whitefish
Lake Whitefish from our fall survey.
Three Bottle-Fed Baby Goats
Baby goats in Texas that were rejected by their various mothers, being fed bottled milk.
Baby goats in Texas that were rejected by their various mothers, being fed bottled milk.
Figure 1. Appearance of Descaling Site Exposed to Fast Green FCF Dye
Figure 1. Appearance of descaling site exposed to fast green FCF dye six hours after intentional descaling injury, showing loss of scales and presence of fast green staining. Areas of unintentional integumental injury are also stained (arrows).
Related image Figure 2.
Figure 1. Appearance of descaling site exposed to fast green FCF dye six hours after intentional descaling injury, showing loss of scales and presence of fast green staining. Areas of unintentional integumental injury are also stained (arrows).
Related image Figure 2.
Figure 2. Scanning Electron Micrograph of Descaling Area
Figure 2. Scanning electron micrograph of descaling area delimited by box in Figure 1 showing epidermal disruption, empty scale pockets and an exposed scale with visible concentric ridges (upper right). Scale bar = 500 µm.
Figure 2. Scanning electron micrograph of descaling area delimited by box in Figure 1 showing epidermal disruption, empty scale pockets and an exposed scale with visible concentric ridges (upper right). Scale bar = 500 µm.
Summit of Glacier Peak, WA, view toward the east.
Summit of Glacier Peak, Washington, view toward the east.
Summit of Glacier Peak, Washington, view toward the east.
Figure 3. Appearance of Descaling Site Exposed to Fast Green FCF Dye
Figure 3. Appearance of descaling site exposed to fast green FCF dye 96 hours after intentional descaling injury, showing lack of scales, presence of fast green staining in areas of epidermal disruption and absence of staining in areas where migrating epidermal cells have closed the wound.
Figure 3. Appearance of descaling site exposed to fast green FCF dye 96 hours after intentional descaling injury, showing lack of scales, presence of fast green staining in areas of epidermal disruption and absence of staining in areas where migrating epidermal cells have closed the wound.
Figure 4. Scanning Electron Micrograph of Descaling Area
Figure 4. Scanning electron micrograph of descaling area delimited by box in Figure 3 showing epidermal disruption (arrows), empty scale pockets and restoration of epidermal integrity (asterisk). An exposed scale with visible concentric ridges is visible at the lower center. Scale bar = 500 µm.
Figure 4. Scanning electron micrograph of descaling area delimited by box in Figure 3 showing epidermal disruption (arrows), empty scale pockets and restoration of epidermal integrity (asterisk). An exposed scale with visible concentric ridges is visible at the lower center. Scale bar = 500 µm.
Crooked River at Smith Rocks
Crooked River of the Deschutes River Basin, Oregon, flows through Smith Rocks
Crooked River of the Deschutes River Basin, Oregon, flows through Smith Rocks