搜索结果: 1-15 共查到“沉积学 Sediment”相关记录27条 . 查询时间(0.109 秒)
Carbon hides in sediment,keeping oxygen in atmosphere（图）
Carbon hides sediment keeping oxygen atmosphere
2019/6/13
A new study by researchers at the Woods Hole Oceanographic Institution and Harvard University may help settle a long-standing question: how do small amounts of organic carbon become locked away in roc...
中国地质大学科学技术发展院陈思资源学院 GSA Bulletin, JAN 2018, Growth of the paleo-Orinoco shelf-margin prism: Process regimes,delta evolution, and sediment budget beyond the shelf edge
南美洲；新近系；Orinoco；三角洲；大陆架；沉积演化
2018/1/24
2018年1月，有关“南美洲新近系Orinoco三角洲大陆架及陆架边缘沉积演化”的研究成果刊发在美国地质学会国际重要期刊《Geological Society of America Bulletin》上。该文第一作者为中国地质大学资源学院副教授陈思博士。
关于举办“Turbulent Mixing and Sediment Transport in the Ocean”学术研讨会的通知
Coastal morphodynamics sedimentology
2016/4/21
我院吴加学教授与班戈大学的Tom P Rippeth 教授，将于2016年9月12日-14日在中山大学举行 “Turbulent Mixing and Sediment Transport in the Ocean”国际研讨会，请详见以下 本次研讨会的邀请信。
Sediment buried in Oregon Coast Range points to a frosty past
Sediment buried Oregon Coast Range points frosty past
2015/11/27
Lush greenery rich in Douglas fir and hemlock trees covers the Triangle Lake valley of the Oregon Coast Range. Today, however, geologists across the country are more focused on sediment samples dating...
Sediment transport dynamics near a river inflow in a large alpine lake
Sediment transport dynamics large alpine lake
2015/6/30
Sediment dynamics were investigated in Lake Maggiore, Italy, with field observations from October to mid-December 2012. Three moorings were deployed in Pallanza Bay, a small embayment on the western s...
Nanoparticles accumulate quickly in wetland sediment
wetland sediment Nanoparticles accumulate
2014/10/1
A Duke University team has found that nanoparticles called single-walled carbon nanotubes accumulate quickly in the bottom sediments of an experimental wetland setting, an action they say could indire...
Nitric oxide turnover in permeable river sediment
Nitric oxide turnover permeable river sediment
2014/7/10
We measured nitric oxide (NO) microprofiles in relation to oxygen (O2) and all major dissolved N-species (ammonium, nitrate, nitrite, and nitrous oxide [N2O]) in a permeable, freshwater sediment (Rive...
Sediment storage by vegetation in steep bedrock landscapes: Theory, experiments, and implications for postfire sediment yield
Sediment storage by vegetation steep bedrock landscapes Theory experiments implications postfire sediment yield
2013/4/8
Mechanistic models for sediment transport on hillslopes are needed for applications ranging from landscape evolution to debris-flow hazards. Progress has been made for soil-mantled landscapes; however...
Analysis of historical trend of carotenoid concentrations in sediment cores from Lake Shinji, Japan
eutrophic oligohaline lake ecosystem phytoplankton carotenoids sediment
2012/4/11
The historical trend of the concentrations of carotenoids originating from phytoplankton in sediment cores collected at
two sites in Lake Shinji, a eutrophic oligohaline lake was investigated to clar...
Osmium concentrations and 187Os/188Os ratios of three sediment reference materials
Os concentration Os isotope sediment reference material Geochemical Survey of Japan heterogeneous Os
2012/4/11
187Os/188Os ratios and osmium concentrations were analyzed in sedimentary reference materials JSd-3, JMS-1, and
JMS-2, issued by the Geological Survey of Japan, using the isotope dilution method with...
A physical model for seismic noise generation from sediment transport in rivers
physical model seismic noise generation sediment transport in rivers
2012/4/8
Measuring sediment flux in rivers remains a significant problem in studies of landscape evolution. Recent studies suggest that observations of seismic noise near rivers can help provide such measureme...
Proposed retrofit for sediment settling velocity tubes (SVTs)
sediment settling velocities sediment distribution
2011/4/12
In order to determine the distribution of sediments, bottom-withdrawal settling velocity tubes (SVTs) are used. This
technique is, for example, often applied in estuaries. Yet, these tubes have serio...
Long-term pigment dynamics and diatom survival in dark sediment
Long-term pigment dynamic dark sediment
2011/4/8
In order to investigate survival of diatoms and long-term pigment dynamics in dark sediment, we incubated
samples of homogenized, sieved, tidal-flat sediment for 1 yr in darkness. Microscopic observa...
Comprehensive analysis for major, minor and trace element contents and Sr-Nd-Pb-Hf isotope ratios in sediment reference materials, JSd-1 and MAG-1
Sediment standard JSd-1 MAG-1 trace elements Sr-Nd-Pb-Hf isotope ratios
2009/8/9
In view of the requirement of a well-characterized and easily available aquatic sediment reference material, a comprehensive analysis comprising of fifty major, minor and trace elements as well as Sr-...
Decadal diagenetic effects on d13C and d15N studied in varved lake sediment
Decadal diagenetic effects on d13C d15N studied varved lake sediment
2009/5/18
To assess the long-term (27 yr) effects of sediment aging on stable carbon and nitrogen isotope values (δ13C and δ15N), we used a collection of eight freeze cores of annually laminated (varved) lake s...