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Articles 1681 - 1710 of 29939

Full-Text Articles in Geology

224, Scott Brande Jan 2024

224, Scott Brande

All 3D Rock Models

Model 224 - phyllite - metamorphic rock

SketchFab link: https://sketchfab.com/3d-models/224-064f45645a2242d29ef75046eeb503ac


Migrating Whooping Crane Activity Near U.S. Air Force Bases And Airfields In Oklahoma, David A. Brandt, Aaron T. Pearse, Mark T. Bidwell, John Conkin, Matthew Butler Jan 2024

Migrating Whooping Crane Activity Near U.S. Air Force Bases And Airfields In Oklahoma, David A. Brandt, Aaron T. Pearse, Mark T. Bidwell, John Conkin, Matthew Butler

United States Geological Survey: Publications

The Aransas-Wood Buffalo population of Grus americana (Linnaeus, 1758; whooping cranes) migrates through the United States Great Plains, encountering places substantially altered by human activity. Using telemetry data from 2017 to 2022, we investigated whooping crane migration behavior around U.S. Air Force bases in Oklahoma. Our study focused on potential collision risks between whooping cranes and aircraft, a substantial concern for aviation safety. We determined that activity was greatest at Kegelman Air Force Auxiliary Airfield, near whooping crane critical habitat. On average, 61 percent of marked whooping cranes used locations west of Kegelman Air Force Auxiliary Airfield and Vance Air …


Leveraging High Resolution Classifications And Random Forests For Hindcasting Decades Of Mesic Ecosystem Dynamics In The Landsat Time Series, N. E. Kolarik, Nawaraj Shrestha, T. Caughlin, J. S. Brandt Jan 2024

Leveraging High Resolution Classifications And Random Forests For Hindcasting Decades Of Mesic Ecosystem Dynamics In The Landsat Time Series, N. E. Kolarik, Nawaraj Shrestha, T. Caughlin, J. S. Brandt

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Nebraska Statewide Groundwater-Level Monitoring Report 2023, Aaron R. Young, Mark E. Burbach, Sue Olafsen Lackey, Robert Matthew Joeckel, Nawaraj Shrestha, Jeffrey Westrop Jan 2024

Nebraska Statewide Groundwater-Level Monitoring Report 2023, Aaron R. Young, Mark E. Burbach, Sue Olafsen Lackey, Robert Matthew Joeckel, Nawaraj Shrestha, Jeffrey Westrop

Conservation and Survey Division: Faculty and Staff Publications

This report is a synthesis of groundwater-level monitoring programs in Nebraska. It is a continuation of the series of annual reports and maps produced by the Conservation and Survey Division (CSD) of the University of Nebraska in cooperation with the U.S. Geological Survey (USGS) since the 1950s. Groundwater-level monitoring began in Nebraska in 1930 to survey the state’s groundwater resources and observe changes in its availability on a regular basis. The CSD and USGS cooperatively developed, maintained, and operated an observation-well network throughout the state. These two agencies were responsible for collecting and archiving this information, and for making it …


Transient Electromagnetic (Tem) Survey For Targeted Drilling On The Kurtzhals Property, Cedar County, Nebraska, Jesse Korus, Katherine (Katie) Cameron, Michele Waszgis Jan 2024

Transient Electromagnetic (Tem) Survey For Targeted Drilling On The Kurtzhals Property, Cedar County, Nebraska, Jesse Korus, Katherine (Katie) Cameron, Michele Waszgis

Conservation and Survey Division: Faculty and Staff Publications

The Kurtzhals property is in Section 19, Township 30N, Range 3 in Cedar County, Nebraska. The present land use is agricultural row crop, but past use included hog production. Two active irrigation wells are located on adjacent properties to the west and southwest. An irrigation well was installed in the northwest corner of the property in 2022. Due to the low yield (300 gallons per minute) of this well, Mr. Kurtzhals seeks to install an additional irrigation well to supplement the first. Several unsuccessful test holes had been drilled prior to the present survey. The purpose of this survey was …


Zircon Luminescence Dating Re-Visited, C. Schmidt, T. Halter, P.R. Hanson, A. Ulianov, B. Putlitz, G. E. King, S. Kreutzer Jan 2024

Zircon Luminescence Dating Re-Visited, C. Schmidt, T. Halter, P.R. Hanson, A. Ulianov, B. Putlitz, G. E. King, S. Kreutzer

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


Age Dating Young Groundwater: How To Determine Groundwater Age From Environmental Tracer Data, D. K. Solomon, T. E. Gilmore Jan 2024

Age Dating Young Groundwater: How To Determine Groundwater Age From Environmental Tracer Data, D. K. Solomon, T. E. Gilmore

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.


129, Scott Brande Jan 2024

129, Scott Brande

All 3D Rock Models

Model 129 - granite - igneous rock

SketchFab link: https://sketchfab.com/3d-models/129-01de2e735f8e482c99f1a95417b7ad33


152, Scott Brande Jan 2024

152, Scott Brande

All 3D Rock Models

Model 152 - pumice - igneous rock

SketchFab link: https://sketchfab.com/3d-models/152-47906f0c520349d99e885d362eba0947


142, Scott Brande Jan 2024

142, Scott Brande

All 3D Rock Models

Model 142 - obsidian - igneous rock

SketchFab link: https://sketchfab.com/3d-models/142-9541b71ef7b34399a3f822938f599c73


200, Scott Brande Jan 2024

200, Scott Brande

All 3D Rock Models

Model 200 - amphibolite - metamorphic rock

SketchFab link: https://sketchfab.com/3d-models/200-de19175088954efc83da6de6d085ec9a


121, Scott Brande Jan 2024

121, Scott Brande

All 3D Rock Models

Model 121 - granite - igneous rock

SketchFab link: https://sketchfab.com/3d-models/121-e1e6025763a1493085ee2d9f63c641dd


163, Scott Brande Jan 2024

163, Scott Brande

All 3D Rock Models

Model 163 - bituminous coal - sedimentary rock

SketchFab link: https://sketchfab.com/3d-models/163-c2903dfb82bc4f05bf7b3556edf8d4ef


115, Scott Brande Jan 2024

115, Scott Brande

All 3D Rock Models

Model 115 - diorite - igneous rock

SketchFab link: https://sketchfab.com/3d-models/115-298e4710804d4faba714d28c4a80ae78


137, Scott Brande Jan 2024

137, Scott Brande

All 3D Rock Models

Model 137 - rhyolite - igneous rock

SketchFab link: https://sketchfab.com/3d-models/137-8b7ec8ed92fe47559004e87e9aacbb16


167, Scott Brande Jan 2024

167, Scott Brande

All 3D Rock Models

Model 167 - chalk - sedimentary rock

SketchFab link: https://sketchfab.com/3d-models/167-1b6dc09a191b4069b0eeae2f9469b77f


164, Scott Brande Jan 2024

164, Scott Brande

All 3D Rock Models

Model 164 - breccia - sedimentary rock

SketchFab link: https://sketchfab.com/3d-models/164-6253af9d9ba5431f89204f20b38aa204


162, Scott Brande Jan 2024

162, Scott Brande

All 3D Rock Models

Model 162 - bituminous coal - sedimentary rock

SketchFab link: https://sketchfab.com/3d-models/162-135d93a3662248b19017ce280564e780


168, Scott Brande Jan 2024

168, Scott Brande

All 3D Rock Models

Model 168 - chalk - sedimentary rock

SketchFab link: https://sketchfab.com/3d-models/168-7a3b2f1e132848378562b32fd2996d26


177, Scott Brande Jan 2024

177, Scott Brande

All 3D Rock Models

Model 177 - conglomerate - sedimentary rock

SketchFab link: https://sketchfab.com/3d-models/177-cbc131f6325143dcba1af1c0bf002212


184, Scott Brande Jan 2024

184, Scott Brande

All 3D Rock Models

Model 184 - oolite - sedimentary rock

SketchFab link: https://sketchfab.com/3d-models/184-df419a6f77294da7be22a056580b6f81


188, Scott Brande Jan 2024

188, Scott Brande

All 3D Rock Models

Model 188 - sandstone - sedimentary rock

SketchFab link: https://sketchfab.com/3d-models/188-5e29c75d2fa340f6a2d0d27ecb44d4ba


185, Scott Brande Jan 2024

185, Scott Brande

All 3D Rock Models

Model 185 - oolite - sedimentary rock

SketchFab link: https://sketchfab.com/3d-models/185-86c0cdff6970452691d5c8c05d87ea9d


194, Scott Brande Jan 2024

194, Scott Brande

All 3D Rock Models

Model 194 - shale - sedimentary rock

SketchFab link: https://sketchfab.com/3d-models/194-38eb855877444452be7a0eca7946576f


196, Scott Brande Jan 2024

196, Scott Brande

All 3D Rock Models

Model 196 - travertine - sedimentary rock

SketchFab link: https://sketchfab.com/3d-models/196-cd4b91a677cd43ab932ee8b5ca38b38c


198, Scott Brande Jan 2024

198, Scott Brande

All 3D Rock Models

Model 198 - travertine - sedimentary rock

SketchFab link: https://sketchfab.com/3d-models/198-c0f51601873e409d995164b8e0e0cd1e


202, Scott Brande Jan 2024

202, Scott Brande

All 3D Rock Models

Model 202 - amphibolite - metamorphic rock

SketchFab link: https://sketchfab.com/3d-models/202-dbe54d200c7f45df837ce0b78b8860bf


199, Scott Brande Jan 2024

199, Scott Brande

All 3D Rock Models

Model 199 - amphibolite - metamorphic rock

SketchFab link: https://sketchfab.com/3d-models/199-c6b2caf11c87467a812dcda87b60f4d3


205, Scott Brande Jan 2024

205, Scott Brande

All 3D Rock Models

Model 205 - gneiss - metamorphic rock

SketchFab link: https://sketchfab.com/3d-models/205-63ecacc4aa794f13aa281cf43e8a71f3


242, Scott Brande Jan 2024

242, Scott Brande

All 3D Rock Models

Model 242 - schist - metamorphic rock

SketchFab link: https://sketchfab.com/3d-models/242-e203c2aa90414627a6107474cbda4385