搜索结果: 16-28 共查到“沉积学 Sediments”相关记录28条 . 查询时间(0.182 秒)
Scaling properties of gravity-driven sediments
Scaling properties gravity-driven sediments
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2009/11/16
Recent field observations of the statistical distribution of turbidite and debris flow deposits are discussed. In some cases one finds a good fit over 1.5-2 orders of magnitude to the scaling law N(h)...
New approaches for automated data processing of annually laminated sediments
automated data processing annually laminated sediments
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2009/11/11
Laminated sediments, like evaporites and biogenic lake sediments, provide high-resolution paleo-climate records. Yet detection and counting of laminae causes still problems because sedimentary structu...
A linear theory of physical properties in inhomogeneous sediments and its application to relative paleointensity determination
linear theory physical properties inhomogeneous sediments paleointensity determination
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2009/10/22
A linear model is developed to study the effect of variations in composition upon extensive physical properties of continuously deposited sediment sequences. By applying this model to natural and synt...
Palaeomagnetic investigations of sediments cores from Axios zone (N. Greece):implications of low inclinations in the Aegean
Palaeomagnetic investigations sediments cores Axios zone
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2009/10/22
Sediment cores from 13 deep boreholes (1–4.1 km) from Axios zone in Northern Greece have been studied by means of palaeomagnetism. Both low field magnetic susceptibility and intensity of the natural r...
Holocene buried organic sediments in Estonia
buried organic sediments 14C dates Ancylus Lake Litorina Sea Estonia
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2009/10/22
An overview of 85 sites of Holocene buried organic sediments in Estonia is presented. This number includes 45 sites of pre-Ancylus and Ancylus age, which were buried during the Ancylus transgression, ...
Transport and distribution of bottom sediments at Pirita Beach
coastal processes sediment transport bottom sediments Gulf of Finland Tallinn Bay
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2009/10/21
The basic factors affecting sediment supply for and transport processes at Pirita Beach, a sandy section of the southeastern coast of Tallinn Bay, are analysed. Observations of bathymetry, sediment pr...
Litorina Sea sediments of ancient Vääna Lagoon,northwestern Estonia
Litorina Sea transgression diatoms pollen radiocarbon dating Vä ä na Lagoon
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2009/10/21
Vääna Lagoon (59°22′30″N, 24°25′00″E) is located 25 km west of Tallinn in ancient Vääna Klint Bay at a 22 m Litorina Sea isobase. Lagoonal deposits were reinvestigated and new resu...
Copper, zinc and lead impact in SW Iberian shelf sediments: An assessment of recent historical changes in Guadiana river basin
SW Iberian Continental Shelf sediment core mining exploitation geochronology heavy metal enrichment factor
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2017/8/10
n the present study, lithogenic/biogenic and anthropogenic elements were determined in five sediment cores collected at the SW Iberian Continental Shelf in order to investigate the spatial and tempora...
Polycyclic aromatic hydrocarbons in the surface sediments from Yellow River, China
Polycyclic aromatic hydrocarbons Sediment Yellow River
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2013/12/12
Fourteen surface sediment samples were collected from Lanzhou Reach of Yellow River, China in July 2005. The concentrations of 16priority polycyclic aromatic hydrocarbons (PAHs) were determined by gas...
Diagenetic and sedimentological controls on the composition of organic matter preserved in California Borderland Basin sediments
Diagenetic and sedimentological controls the composition of organic matter preserved California Borderland Basin sediments
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2014/4/23
Compound-specific radiocarbon (14C) contents, stable carbon isotopes, and abundances of phytoplankton and vascular plant derived lipid biomarkers (alkenones and fatty acids) were obtained from Santa B...
Dissolved organic matter in abyssal sediments: Core recovery artifacts
Dissolved organic matter abyssal sediments Core recovery artifacts
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2014/4/22
We report measurements of pore-water dissolved organic carbon (DOC), dissolved organic nitrogen, total dissolved carbohydrates, dissolved free monosaccharides, and ammonium in recovered deep-sea sedim...
Global estimates of enhanced solute transport in marine sediments
Global estimates enhanced solute transport marine sediments
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2014/5/20
Pore-water solute transport processes acting in addition to molecular diffusion affect sediment biogeochemistry and benthic exchange fluxes. Given the relatively few direct measurements of enhanced tr...
Rate of growth of isolated bubbles in sediments with a diagenetic source of methane
Rate of growth of isolated bubbles in sediments with a diagenetic source of methane
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2014/6/9
Observation of bubbles in estuarine and coastal sediments indicates that bubbles at or below 10 cm depth grow on seasonal time scales (May-October). In order to determine the controls on this growth r...