搜索结果: 1-15 共查到“沉积学 sediments”相关记录28条 . 查询时间(0.056 秒)
Radioactivity From Oil And Gas Wastewater Persists In Pennsylvania Stream Sediments（图）
Radioactivity Oil And Gas Wastewater Pennsylvania Stream Sediments
2018/2/1
More than seven years after Pennsylvania officials requested that the disposal of radium-laden fracking wastewater into surface waters be restricted, a new Duke University study finds that high levels...
Determination of organic carbon in soils and sediments in an automatic method
Automatic digestion Soils Sediments Organic carbon
2018/3/23
Our automatic digestion device is applied in determining the quantity of organic carbon in the soils/sediments. Its operation process is simple. The reaction conditions are optimized; the complex pret...
Acoustic characterization of pelagic sediments using sub-bottom profiler data: Implications for the distribution of REY-rich mud in the Minamitorishima EEZ, western Pacific
REY-rich mud Minamitorishima EEZ sub-bottom profiler sediment classification western Pacific
2017/4/10
Sub-bottom profiling was conducted in the Japanese Exclusive Economic Zone (EEZ) around Minamitorishima Island,
western Pacific Ocean, to investigate the features and distribution of mud rich in rare...
Southern Exposure: New Paleoclimate Insights From Southern Ocean and Antarctic Margin Sediments
Southern Ocean Antarctic Margin Sediments
2015/7/15
Much of what is known about the evolution of Antarctica's cryosphere in the geologic past is derived from ice-distal deep-sea sedimentary records. Recent advances in drilling technology and climate pr...
MERCURY DISTRIBUTION IN SOILS AND STREAM SEDIMENTS OF CENTRAL INDIANA, USA
Mercury Soil Sediment Emissions
2015/1/16
An investigation of mercury (Hg) in soils and stream sediments was conducted to understand the impact of urbanization on Hg deposition and accumulation on the upper west fork of the White River waters...
Ebullition-enhanced solute transport in coarse-grained sediments
coarse-grained sediments Ebullition-enhanced solute transport
2014/10/16
Pore-water exchange caused by ebullition of small oxygen bubbles produced by microalgae in the surface layer
of sand sediment at St. Joseph Bay (SJB), Gulf of Mexico, was contrasted with ebullition o...
δD values of individual n-alkanes in sediments from the Chaka salt lake (China) and terrestrial plants from the surrounding area
Chaka salt lake sediment plant n-alkane hydrogen isotope biological source
2017/4/11
Molecular distribution and compound-specific hydrogen isotopic ratios (δD) of n-alkanes in shallow-water surface
sediments from the Chaka salt lake and from various terrestrial plants in the surround...
Spatial and temporal variations of trace metals in sediments from the artificial Saemangeum Lake, Korea
Saemangeum Lake trace metal spatial distribution pollution status dike
2017/4/11
Trace metals in the surface sediments were measured to investigate the spatial distribution and annual variations of
metals (Cr, Co, Ni, Cu, Zn, As, Cd, Pb, Hg) and to evaluate the pollution status f...
Contents, Enrichment, Toxicity and Baselines of trace elements in the estuarine and coastal sediments of the Daliao River System, China
estuary sediment trace element enrichment toxicity regional geochemical baseline
2017/4/11
The Daliao River System (DRS) estuary in the Liaodong Bay has a highly industrial, urbanized, and agricultural
catchment. The objective of this study was to investigate the multi-elemental geochemist...
Apparent increase in Mn and As accumulation in the surface of sediments in Lake Biwa, Japan, from 1977 to 2009
ake Biwa manganese arsenic temporal variation environmental change
2017/4/11
An apparent temporal increase in Mn and As in a thin surface layer (ca. 2 cm) of sediments in Lake Biwa, Japan, was
observed by comparing depth profile data from 1977 and 2009. By our estimation, sev...
Occurrence of Diuron and Irgarol in seawater, sediments and planktons of Seto Inland Sea, Japan
Diuron Irgarol Seto Inland Sea riverine discharge offshore transport
2017/4/11
The concentrations of the herbicide Diuron and algaecide Irgarol in the Seto Inland Sea, Japan, were assessed for
October 2008 and October 2009. Overall, 29 seawater, sediment and plankton samples we...
Heavy metal distribution in recent sediments along the Tietê River basin (São Pauro, Brazil)
heavy metals Tietê River sediments geo-accumulation index pollution
2017/4/11
The distribution of heavy metals in recent sediments deposited along the Tietê River, a highly polluted river in southeast
region of Brazil was studied. Around the metropolitan area of São Paulo...
Distribution of combined monosaccharides in sediments from the Lake Rawa Danau, West Java, Indonesia: Sources and diagenetic fate of carbohydrates in a tropical wetland
biomarker diagenesis wetland vegetation changes
2017/4/12
Monosaccharide compositions were determined for a sediment core (RD-1) collected from a tropical wetland, Rawa
Danau, West Java, Indonesia (location 6°11′ S and 105°59′ E) to assess the sources and d...
Rare earth elements in the ornithogenic sediments from the Maritime Antarctic: A potential new palaeoecology proxy
Antarctica ornithogenic sediments rare earth elements
2017/4/12
The ornithogenic sediments in the maritime Antarctic are good archives for studying the changes of historical penguin
population. Rare earth elements (REEs) along with biological and lithophile eleme...
Geologic structure and geochemical characteristics of sediments of fluoride and arsenic contaminated groundwater aquifer in Kalalanwala and its vicinity, Punjab, Pakistan
anthropogenic contamination groundwater aquifer aeolian sediment buried valley chlorite
2017/8/9
To constrain the origin of fluoride and arsenic contamination of groundwater in Kalalanwala, Punjab, Pakistan, the geochemical and mineralogical characteristics of the aquifer were studied. Subsurface...