搜索结果: 1-15 共查到“理学 isotope”相关记录226条 . 查询时间(0.109 秒)
中国地质大学科学技术发展院温冰(博士生)，周爱国, 周建伟等地质调查研究院/环境学院 JOURNAL OF HYDROLOGY, FEB 2018. Coupled S and Sr isotope evidences for elevated arsenic concentrations in groundwater from the world's largest antimony mine, Central China
锑矿区；地下水；环境；砷锑；污染
2018/5/9
近日，中国地质大学环境学院矿山环境保护与治理研究团队（周爱国教授、周建伟教授研究团队）在“锑矿区地下水环境砷锑污染”研究中取得新进展，相关成果发表在国际著名期刊《Journal of Hydrology》上，论文第一作者为中国地质大学地质调查研究院2014级博士生温冰。
中国地质大学科学技术发展院石炜(博士生),李超等 BGEG国家重点实验室 Geology, January 24,2018, Sulfur isotope evidence for transient marine-shelf oxidation during the Ediacaran Shuram Excursion
早期地球；海洋；氧化模式；地球；碳循环；
2018/2/1
近日，中国地质大学生物地质与环境地质国家重点实验室李超教授团队在国际著名地学期刊《Geology》上发表了题为“Sulfur isotope evidence for transient marine-shelf oxidation duringthe Ediacaran Shuram Excursion”的学术论文，该论文通过定量数值模拟的方法首次发现了埃迪卡拉纪碳循环剧烈扰动时期（又称“Shu...
中国地质大学科学技术发展院张磊（博士生）， 赵来时等GPMR国家重点实验室 Geochimica et Cosmochimica Acta, 2017. Raman spectral, elemental, crystallinity, and oxygen-isotope variations in conodont apatite during diagenesis
牙形；石磷；灰石；古海洋；古气候
2017/6/27
近日，中国地质大学地质过程与矿产资源国家重点实验室赵来时教授团队在国际著名期刊《Geochimica et Cosmochimica Acta》发表题为Raman spectral, elemental, crystallinity, and oxygen-isotope variations in conodont apatite during diagenesis（牙形石磷灰石的拉曼光谱、元素...
Tellurium isotope compositions in acid leach fractions of carbonaceous chondrites
tellurium isotopes acid leaching N-TIMS carbonaceous chondrites isotope anomaly
2017/4/10
We present the tellurium (Te) isotope compositions of the acid leachates and residues from three carbonaceous chondrites,
namely, Allende, Murchison, and Tagish Lake. Most of the Te isotope compositi...
第三次放射性同位素科学进展国际会议（Third International Conference on Advances in Radioactive Isotope Science）
第三次 放射性同位素科学进展 国际会议
2017/1/12
The third International Conference on Advances in Radioactive Isotope Science, ARIS 2017, will be held in Keystone, Colorado in the U.S. from Sunday, May 28 through Friday, June 2, 2017. ARIS is the f...
The effects of fat loss after bariatric surgery on inflammation, serum hepcidin, and iron absorption: a prospective 6-mo iron stable isotope study
obesity iron deficiency iron absorption hepcidin inflammation stable isotopes
2016/8/24
Background: Iron deficiency is common in obese subjects. This may be due to an increase in serum hepcidin and a decrease in iron absorption from adiposity-related inflammation.
Carbon isotope ratios of organic matter in Bering Sea settling particles: Extremely high remineralization of organic carbon derived from diatoms
diatoms coccolithophores carbon isotope organic carbon remineralization rain ratio
2016/4/10
The carbon isotope ratios of organic carbon in settling particles collected in the highly-diatom-productive Bering Sea
were determined. Wet decomposition was employed to oxidize relatively fresh orga...
Origin of unusual fractionation of Pb isotope ratios with calcium in thalliumspiked multiple collector-inductively coupled plasma mass spectrometry
Pb isotope, fractionation, MC-ICPMS
2016/4/10
We report the origin of significant fractionation of Pb isotope ratios in Ca-doped 0.08 mol L–1 HNO3 solutions. We
applied Tl-spiked standard bracketing mass fractionation correction using solution-b...
Nucleosynthetic isotope anomalies and their cosmochemical significance
isotope anomalies nucleosynthetic effects metal isotopes
2016/4/10
Unlike most terrestrial rocks, some meteorites and their mineral components show isotope compositions that are clearly
associated with nucleosynthetic processes in stars other than the Sun. Although ...
Interactive evolution of multiple water-ice reservoirs on Mars: Insights from hydrogen isotope compositions
Mars water ice isotope atmospheric escape
2016/4/10
Remote sensing data from orbiter missions have proposed that ground ice may currently exist on Mars, although the
volume is still uncertain. Recent analyses of Martian meteorites have suggested that ...
The 3550 year BP-1944 A.D.magma-plumbing system of Somma-Vesuvius: constraints on its behaviour and present state through a review of Sr-Nd isotope data
Somma-Vesuvius magma chamber crustal contamination
2015/9/15
Vesuvius, dominating the densely-populated Neapolitan area, is one of the most dangerous volcanoes in the World. Its destructive power derives from energetic subplinian and plinian eruptions, such as ...
Heat and mass transfer from the mantle: heat flow and He-isotope constraints
heat flow helium isotope ratio geothermal energy mass transfer
2015/9/10
Terrestrial heat flow density, q, is inversely correlated with the age, t, of tectono-magmatic activity in the Earth's
crust (Polyak and Smirnov, 1966; etc.). «Heat flow-age dependence» ind...
Groundwater resources evaluation in the Piedmont zone of Himalaya, India, using Isotope and GIS techniques
piedmont Himalayan foothill region Tritium Tagging Technique isotopic techniques
2015/8/11
Integrated geohydrological, isotopes and Geographical Information System (GIS) techniques have been used to delineate groundwater resources potential in the Piedmont zone of Himalayan foothill region,...
Was the Late Paleocene-Early Eocene Hot Because Earth Was Flat? An Ocean Lithium Isotope View of Mountain Building,Continental Weathering, Carbon Dioxide,and Earth's Cenozoic Climate
Late Paleocene-Early Eocene Hot Earth Was Flat Ocean Lithium Isotope View Mountain Building Continental Weathering Carbon Dioxide Earth's Cenozoic Climate
2015/7/17
Hothouse climates in Earth's geologic past, such as the Eocene epoch, are thought to have been caused by the release of large amounts of carbon dioxide and/or methane, which had been stored as carbon ...
Re–Os isotope geochemistry in the surface layers of ferromanganese crusts from the Takuyo Daigo Seamount, northwestern Pacific Ocean
ferromanganese crust Re and Os isotopes geochemistry Takuyo Daigo Seamount northwestern Pacific Ocean
2015/4/10
Os isotope compositions in ferromanganese crusts (Fe–Mn crusts) have been used for the dating of model ages from
present to the Late Cretaceous. This dating method assumes that the Fe–Mn crusts prese...