U.S. Geological Survey Scientific Investigations Map最新文献_第2页

Bathymetric survey and sedimentation analysis of Lago Patillas, Puerto Rico, August 2019 2019年8月，波多黎各帕提拉斯湖水深测量及沉积分析

U.S. Geological Survey Scientific Investigations Map Pub Date : 2021-01-01 DOI: 10.3133/SIM3471

Julieta Gómez-Fragoso

引用次数: 0

Three-dimensional geologic map of the Brady geothermal area, Nevada 内华达州布雷迪地热区的三维地质图

U.S. Geological Survey Scientific Investigations Map Pub Date : 2021-01-01 DOI: 10.3133/SIM3469

D. Siler, J. Faulds, N. Hinz, J. Queen

引用次数: 3

Delineating the Pierre Shale from geophysical surveys within and near Ellsworth Air Force Base, South Dakota, 2019 2019年，南达科他州埃尔斯沃思空军基地及其附近的地球物理调查描绘了皮埃尔页岩

U.S. Geological Survey Scientific Investigations Map Pub Date : 2021-01-01 DOI: 10.3133/sim3474

Colton J. Medler, T. M. Anderson

{"title":"Delineating the Pierre Shale from geophysical surveys within and near Ellsworth Air Force Base, South Dakota, 2019","authors":"Colton J. Medler, T. M. Anderson","doi":"10.3133/sim3474","DOIUrl":"https://doi.org/10.3133/sim3474","url":null,"abstract":"The U.S. Geological Survey, in cooperation with the U.S. Air Force Civil Engineering Center, investigated the use of surface geophysical methods to delineate the top of the Cretaceous Pierre Shale along survey transects in selected areas within and near Ellsworth Air Force Base, South Dakota. Two complementary geophysical methods—electrical resistivity and passive seismic—were used along 26 co-located transect surveys within and near Ellsworth Air Force Base for a total of 12.7 line-kilometers. Electrical resistivity results were analyzed using EarthImager2D electrical resistivity tomography processing and inversion software. Two-dimensional earth models showing the electrical properties of the subsurface were evaluated by directly comparing the high and low subsurface resistivity values to a surficial geologic map and nearby wells with driller logs. Passive seismic data were analyzed using the horizontal-to-vertical spectral ratio method to determine the depth to the Pierre Shale at each survey point. The electrical resistivity and passive seismic results were compared to driller logs from nearby wells to delineate the top of the Pierre Shale. The depth to the Pierre Shale along the transects ranged from about 2.4 to 20.3 meters, and mean and median depths were about 9.2 and 9.0 meters, respectively. The elevation of the Pierre Shale and thickness of unconsolidated deposits generally increased with land-surface elevation from south to north; however, some transects displayed topographically high and low areas that sometimes did not correlate with land-surface topography and may affect local groundwater flow.","PeriodicalId":36283,"journal":{"name":"U.S. Geological Survey Scientific Investigations Map","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69294384","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Stratigraphic cross sections of the Mowry Shale and associated strata in the Wind River Basin, Wyoming 怀俄明风河盆地莫里页岩及伴生地层的地层剖面

U.S. Geological Survey Scientific Investigations Map Pub Date : 2021-01-01 DOI: 10.3133/sim3476

T. Finn

引用次数: 0

Elevation and elevation-change maps of Fountain Creek, southeastern Colorado, 2015-20 2015-20年科罗拉多州东南部喷泉溪的海拔和海拔变化图

U.S. Geological Survey Scientific Investigations Map Pub Date : 2021-01-01 DOI: 10.3133/sim3481

L. Hempel, A. Creighton, A. Bock

{"title":"Elevation and elevation-change maps of Fountain Creek, southeastern Colorado, 2015-20","authors":"L. Hempel, A. Creighton, A. Bock","doi":"10.3133/sim3481","DOIUrl":"https://doi.org/10.3133/sim3481","url":null,"abstract":"The U.S. Geological Survey, in cooperation with Colorado Springs Utilities, has collected topographic data annually since 2012 at 10 study areas along Fountain Creek, southeastern Colorado. The 10 study areas were located between Colorado Springs and the terminus of Fountain Creek at the Arkansas River in Pueblo. The purpose of this report is to present elevation maps based on topographic surveys collected in 2020 and to present maps of elevation change that occurred between 2015 and 2020 at all 10 study areas. Elevation and elevation-change maps were developed in Global Mapper, R, and ArcGIS from topographic surveys collected at each study area during the winters of 2015 and 2020. Topographic surveys in 2015 were completed using real-time kinematic Global Navigation Satellite Systems. Topographic surveys in 2020 were completed using both real-time kinematic Global Navigation Satellite Systems and light detection and ranging. Elevation-change maps were created using propagated uncertainties associated with the 95-percent confidence limit. Study areas along Fountain Creek underwent a range of geomorphic responses between 2015 and 2020 that were often related to the dominant channel planform pattern of the study area. The results of this ongoing monitoring effort can be used to assess long-term changes in land-surface elevation and to advance understanding of the geomorphic response to possible changes in flow conditions on Fountain Creek.","PeriodicalId":36283,"journal":{"name":"U.S. Geological Survey Scientific Investigations Map","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69294479","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Geologic map of Olympus Mons caldera, Mars 火星奥林匹斯山火山口地质图

U.S. Geological Survey Scientific Investigations Map Pub Date : 2021-01-01 DOI: 10.3133/sim3470

P. Mouginis-Mark

引用次数: 2

Improved Automated Identification and Mapping of Iron Sulfate Minerals, Other Mineral Groups, and Vegetation using Landsat 8 Operational Land Imager Data, San Juan Mountains, Colorado, and Four Corners Region 使用Landsat 8操作陆地成像仪数据改进的硫酸铁矿物、其他矿物群和植被的自动识别和制图，圣胡安山脉，科罗拉多州和四角地区

U.S. Geological Survey Scientific Investigations Map Pub Date : 2021-01-01 DOI: 10.3133/SIM3466

B. Rockwell, W. Gnesda, A. Hofstra

引用次数: 1

Geologic and geophysical maps of the Santa Maria and part of the Point Conception 30'×60' quadrangles, California 加州圣玛丽亚和部分概念点30'×60'四边形的地质和地球物理地图

U.S. Geological Survey Scientific Investigations Map Pub Date : 2021-01-01 DOI: 10.3133/sim3472

D. Sweetkind, V. Langenheim, K. McDougall-Reid, C. Sorlien, Shiera C. Demas, M. Tennyson, S. Y. Johnson

引用次数: 0

Geologic map of the Athabasca Valles region, Mars 火星阿萨巴斯卡山谷地区的地质图

U.S. Geological Survey Scientific Investigations Map Pub Date : 2021-01-01 DOI: 10.3133/sim3477

L. Keszthelyi, A. Huff, W. Jaeger

引用次数: 1

Mean annual runoff and annual runoff variability map for Oklahoma, 1940–2007 俄克拉何马州平均年径流量和年径流量变异性图，1940-2007

U.S. Geological Survey Scientific Investigations Map Pub Date : 2021-01-01 DOI: 10.3133/sim3482

S. J. Smith, Elise M. Sherrod

引用次数: 0