U.S. Geological Survey Fact Sheet最新文献_第8页

Living with volcano hazards 生活在火山危险中

U.S. Geological Survey Fact Sheet Pub Date : 2019-04-01 DOI: 10.3133/FS20183075

Wendy K. Stovall, C. Driedger, E. Westby, Lisa M. Faust

引用次数: 1

Assessing the impact of the Conservation Reserve Program on honey bee health 评估保护保护区计划对蜜蜂健康的影响

U.S. Geological Survey Fact Sheet Pub Date : 2019-01-01 DOI: 10.3133/FS20183082

Clint R. V. Otto

引用次数: 1

Water resources of Madison Parish, Louisiana 路易斯安那州麦迪逊教区的水资源

U.S. Geological Survey Fact Sheet Pub Date : 2019-01-01 DOI: 10.3133/fs20193018

V. White

引用次数: 1

Geological and geophysical data for a three-dimensional view—Inside the San Juan and Silverton Calderas, Southern Rocky Mountains Volcanic Field, Silverton, Colorado 三维视图的地质和地球物理数据-在圣胡安和西尔弗顿火山口内部，南落基山脉火山场，西弗顿，科罗拉多州

U.S. Geological Survey Fact Sheet Pub Date : 2019-01-01 DOI: 10.3133/FS20193026

D. Yager, E. Anderson, M. Deszcz-Pan, B. Rodriguez, Bruce D. Smith

引用次数: 0

Assessment of continuous oil and gas resources in Jurassic Posidonia Shales of Greece and Albania, 2019 2019年希腊和阿尔巴尼亚侏罗系Posidonia页岩连续油气资源评价

U.S. Geological Survey Fact Sheet Pub Date : 2019-01-01 DOI: 10.3133/fs20193075

C. J. Schenk, T. Mercier, M. Tennyson, T. Finn, Cheryl A. Woodall, M. Brownfield, K. Marra, Heidi M. Leathers-Miller, P. Le, R. M. Drake

{"title":"Assessment of continuous oil and gas resources in Jurassic Posidonia Shales of Greece and Albania, 2019","authors":"C. J. Schenk, T. Mercier, M. Tennyson, T. Finn, Cheryl A. Woodall, M. Brownfield, K. Marra, Heidi M. Leathers-Miller, P. Le, R. M. Drake","doi":"10.3133/fs20193075","DOIUrl":"https://doi.org/10.3133/fs20193075","url":null,"abstract":"The U.S. Geological Survey (USGS) quantitatively assessed the potential for undiscovered, technically recoverable continuous oil and gas resources in the Jurassic Posidonia Shale Total Petroleum System (TPS) of western Greece and southern Albania (fig. 1). From the Late Triassic to Early Jurassic, this area of western Greece and southern Albania was part of a regionally extensive carbonate platform that developed on and around the Apulian Plate (Karakitsios, 1995; 2013). Deposited along the passive margin during this time were as much as 1,000 meters of platform carbonates of the Pantokrator Limestone. Jurassic extension and rifting associated with the opening of the neo-Tethys Ocean led to the formation of numerous grabens and half-grabens along the margin of the Apulian Plate (Karakitsios, 1995; Karakitsios and Rigakis, 2007). The bottom waters of the deeper grabens and half-grabens were anoxic, resulting in the deposition and preservation of organic-rich petroleum source rocks of the Jurassic Posidonia Shale. These extensional structures persisted through the Jurassic and eventually were buried by the regionally extensive, postrift Cretaceous Vigla Limestone. From the Cretaceous through the Paleogene, the Apulian Plate was relatively undeformed and buried by perhaps hundreds of meters of carbonate deposits. Beginning in the Eocene and ending in the Miocene, the Apulian Plate collided with the Eurasian Plate, forming the Dinaride and Hellenide fold and thrust belts, resulting in compressional deformation of Mesozoic rocks. Associated with the collision of Apulia was the progradation of orogenic clastic wedges up to several kilometers thick (Gonzalez-Bonorino, 1996; Karakitsios, 2013). Neogene burial by these orogenic clastics resulted in the thermal maturation into the oiland gas-generation windows of the Jurassic Posidonia source rocks (Rigakis and Karakitsios, 1998; Karakitsios and Rigakis, 2007).","PeriodicalId":36286,"journal":{"name":"U.S. Geological Survey Fact Sheet","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69284747","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

Assessment of undiscovered gas resources in the Middle Devonian Marcellus Shale of the Appalachian Basin Province, 2019 阿巴拉契亚盆地中泥盆统马塞勒斯页岩未发现天然气资源评价，2019

U.S. Geological Survey Fact Sheet Pub Date : 2019-01-01 DOI: 10.3133/fs20193050

D. Higley, Catherine E Enomoto, Heidi M. Leathers-Miller, Geoffrey S. Ellis, T. Mercier, C. J. Schenk, M. Trippi, P. Le, M. Brownfield, Cheryl A. Woodall, K. Marra, M. Tennyson

引用次数: 4

Groundwater quality in shallow aquifers in the western Mojave Desert, California 加利福尼亚州西部莫哈韦沙漠浅层含水层的地下水质量

U.S. Geological Survey Fact Sheet Pub Date : 2019-01-01 DOI: 10.3133/FS20193033

K. Groover, Dara A. Goldrath

{"title":"Groundwater quality in shallow aquifers in the western Mojave Desert, California","authors":"K. Groover, Dara A. Goldrath","doi":"10.3133/FS20193033","DOIUrl":"https://doi.org/10.3133/FS20193033","url":null,"abstract":"The Mojave Basin Shallow Aquifer study unit (Mojave) covers approximately 4,680 square kilometers (2,908 square miles) in the western part of the Mojave Desert in San Bernardino County. The study unit consists of groundwater basins along the Mojave River, the El Mirage Valley groundwater basin, and part of the Harper Valley groundwater basin. The Mojave study unit was divided into two study areas—the floodplain study area along the Mojave River and the regional study area surrounding and underlying the floodplain study area. Aquifers in the floodplain study area consist of coarse granitic river-channel and floodplain alluvium deposited by the Mojave River. Aquifers in the regional study area consist of alluvium derived from older stream deposits, locally derived alluvial fans, playa lake deposits, and fractured bedrock (Stamos and others, 2001; Groover and Izbicki, 2019). This study examined the quality of groundwater resources used for domestic drinkingwater supply. Previous studies of groundwater resources used for public drinking-water supply in the Mojave Desert have observed elevated concentrations of some constituents, primarily trace elements, in some wells (Dawson and Belitz, 2012; Metzger and others, 2015). Domestic wells in the study unit typically are drilled to depths of 27–186 meters (Groover and others, 2019), which is shallower than the depths of public-supply wells in the same area (typically 90–300 meters deep; Dawson and Belitz, 2012). Water levels in domestic wells in the study unit typically are 9–140 meters below land surface (Groover and others, 2019). This study was designed to provide a statistically representative assessment of the quality of groundwater resources used for domestic drinking water. A total of 48 domestic wells were sampled between January and May 2018 (Groover and others, 2019). Eleven additional wells were sampled to evaluate processes affecting groundwater quality, but these wells are not included in this assessment.","PeriodicalId":36286,"journal":{"name":"U.S. Geological Survey Fact Sheet","volume":"35 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69284993","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

Naturally occurring uranium in groundwater in northeastern Washington State 华盛顿州东北部地下水中天然存在的铀

U.S. Geological Survey Fact Sheet Pub Date : 2019-01-01 DOI: 10.3133/fs20193069

S. Kahle

引用次数: 1

The Mississippi Alluvial Plain aquifers—An engine for economic activity 密西西比河冲积平原含水层——经济活动的引擎

U.S. Geological Survey Fact Sheet Pub Date : 2019-01-01 DOI: 10.3133/FS20193003

Mustapha Alhassan, C. Lawrence, S. Richardson, E. Pindilli

{"title":"The Mississippi Alluvial Plain aquifers—An engine for economic activity","authors":"Mustapha Alhassan, C. Lawrence, S. Richardson, E. Pindilli","doi":"10.3133/FS20193003","DOIUrl":"https://doi.org/10.3133/FS20193003","url":null,"abstract":"U.S. Department of the Interior U.S. Geological Survey Fact Sheet 2019–3003 February 2019 U.S. Geological Survey (USGS) science supports groundwater resource management in the Mississippi Alluvial Plain (MAP) region. The USGS Science and Decisions Center is working with the Water Availability and Use Science Program (WAUSP) to integrate economics into a sophisticated model of groundwater in the region. The model will quantify the status of the groundwater system and help researchers, stakeholders, and decision-makers understand and manage groundwater resources. Including economics in the model will let users consider the influence of groundwater levels on regional economics and the effects of economic factors on the demand for groundwater. Agriculture is a major source of economic activity in the Mississippi Alluvial Plain (MAP) region. The MAP region consists of parts of Arkansas, Mississippi, Louisiana, Tennessee, Kentucky, Illinois, and Missouri (fig. 1). Irrigated acreage in the region accounted for 14 percent of total U.S. agriculture in 2015 (Dieter and others, 2018). Major crops grown in the region include corn, cotton, rice, and soybeans. Catfish is an important aquaculture commodity. Agriculture in the region relies on groundwater for irrigation. Approximately 65 percent of farmland in the region relies on groundwater from the Mississippi River Valley alluvial aquifer (MRVAA) for irrigation and aquaculture (Kebede and others, 2014).1 Irrigated acreage in the region is on the rise; from 2007 to 2012, irrigated acreage in Arkansas and Mississippi increased by about 7.7 and 20.7 percent, respectively (U.S. Department of Agriculture-National","PeriodicalId":36286,"journal":{"name":"U.S. Geological Survey Fact Sheet","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69284210","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: 14

Water resources of Tensas Parish, Louisiana 路易斯安那州田纳西教区的水资源

U.S. Geological Survey Fact Sheet Pub Date : 2019-01-01 DOI: 10.3133/fs20193004

V. White

引用次数: 2