1) sulfur isotopic composition
硫同位素组成
1.
The analytical results show that the sulfur isotopic composition of barite in the mineralization epoch is significantly different from that of sulfides formed during post-mineralization(pyrite and galena),the former is enriched in 34S with δ34S values ranging from +1.
分析了四川冕宁大型稀土矿床硫同位素组成。
2.
In order to study the source of acid deposition in Pearl River Delta, Xiang-Gui Corridor and surrounding areas in South China, the sulfur isotopic composition of precipitation, atmospheric SO2, aerosol and industrial coal, heavy oil and their burning products were measured.
为探讨华南珠江三角洲和湘桂走廊及其周边地区的酸沉降硫源,分别对大气降水、大气SO2、气溶胶和工业用煤、重油及其燃烧产物进行了硫同位素组成测定。
3.
Comparing the sulfur isotopic compositions and discussing their sources of sulfur in seafloor hydrothermal sediments from different geologic-tectonic setting are comared and their soures of s.
共收集到现代海底热液沉积物的 1 2 6 4个硫同位素数据 ,结合我们对冲绳海槽Jade热液区和大西洋中脊TAG热液区中表层热液沉积物的硫同位素研究成果 ,对比分析了不同地质 -构造环境中海底热液沉积物的硫同位素组成特征及其硫源问题 。
2) sulfur isotopic composition of fluid system
总硫同位素组成
3) isotopic composition
同位素组成
1.
Study of the inclusions and the isotopic compositions of volatile components in volcanic rocks in the Okinawa Trough;
冲绳海槽火山岩中岩浆包裹体及气体同位素组成研究
2.
The chemical components and isotopic compositions of fluid inclusions in differe nt carbonate reservoirs in Weiyuan,Ziyang and Longchang gas fields in the southwest of Sichuan Basin are measured by means of on-line mass spectrometry connected with magnetic force crushing equipment to break fluid inclusions unde r vacuum.
采用真空磁力破碎包裹体与质谱计在线连接的方法 ,分析了四川盆地西南威远气田、资阳气田和隆昌气田不同时代碳酸盐岩储层中流体包裹体的化学成分和碳同位素组成 ,并结合储层地质特征 ,研究了储层流体的来源。
3.
Based on data of runoff and water isotopic compositions in the Yarlung Zangbo River,this paper mainly analyzes the spatio-temporal distribution of runoff and isotopic effect of precipitation in this area.
流域内大部分雨水和河水样品的同位素组成均落在全球大气降水线!D=8"18O+10的右上方,显示出强烈蒸发的特征。
4) Isotope composition
同位素组成
1.
The origin of dawsonite is emphatically contrasted and analyzed by stable isotope composition of dawsonite.
根据片钠铝石稳定同位素组成,对比分析片钠铝石的碳来源。
2.
Based on the information of hydrogen and oxygen isotope compositions, tritium contents, deuterium excess parameters (d-excess), this paper analyses and discusses the recharge resource and altitude ,removed patch ,detained time and hydraulic connection at the Zhenzhu spring and Feicui spring in the research area.
本文基于四川牟尼沟珍珠泉和翡翠泉水的氢、氧同位素组成、氘过量参数及氚含量资料 ,详细分析和讨论了两泉地下含水层水的补给源、补给高度、水的运移途径和滞留时间及它们之间的水力联系。
3.
Based on the isotope composition features of water bodies in Sanjiashui area ,this paper use the theory of deuterium excess parameter (d) to discuss and cause of formulation, recharge source, removed patch, detained time and dynamics feature on ground water.
本文基于四川绵竹三箭水及其邻区水体的同位素组成,引入氘过量参数(d=δD-8δ~(18)O)的概念,将其用于查明该地区温泉地下水的成因,包括地下热储层内地下水的来源、补给源区、运移途径和地下水动力学特征,这些将对评估该地区地下热水的库储规模和温泉的开发潜力以及在温泉邻近地区寻找新的温泉靶区有重要的参考价值。
5) isotopic composition
同位素组分，同位素组成
6) Carbon isotope composition
碳同位素组成
1.
The reverse series of carbon isotope composition of natural gas in this area is mainly caused by the same-type and different-source gas or the same source and different-phase gas in humic-type organic ma.
本区天然气的碳同位素组成具有倒转序列特征,这主要是由腐殖型母质的“同型不同源”气或“同源不同期”气的混合造成的,同时也不排除由天然气中某一或某些组分被细菌氧化所造成。
2.
The molecular compositions and compound-specific stable carbon isotope compositions of individual n-alkanes from surface sediments of the East China Sea(ECS) mud areas including the coastal mud area,the southwest mud area to Cheju Island,and the Northern Okinawa Trough were analyzed using gas chromatography/mass spectrometry(GC/MS) and gas chromatography/isotopic ratio mass spectrometry (GC/IRMS).
利用气相色谱(GC)和气相色谱/同位素比值质谱(GC/IRMS)对东海近岸泥质区、济州岛西南泥质区和冲绳海槽北部表层沉积物中正构烷烃的单体碳同位素组成及分布进行了分析。
3.
The stable carbon isotope compositions in plant leaves can be used to provide information of original carbon in soil organic matter and paleo-ecological evolutions, based on the good relationship between the stable carbon isotope compositions and water use efficiency in plants or plant productivity to some extent.
测定了青藏高原北部 13个地点 10 1份草本植物叶片碳同位素组成 (δ13C值 ) ,结果发现 ,植物叶片δ13C值的分布范围在 - 2 9。
补充资料：硫同位素
分子式：
CAS号：
性质：第六族(ⅥA)元素。Z16。硫元素在自然界中有32S 33S 34S、36S四种稳定同位素。核外电子构型都为3s23p4。相对原子质量分别为31.972 070、32.971 456、33.967866和35.967 880。天然丰度分别为95.02％、0.75％、4.21％和0.02％。天然物质的硫同位素组成由34S/32S比值确定的δ(34S)表示，标准品为美国代阿布洛大峡谷(Canyon Diablo)铁陨石中的陨硫铁，简称CDT。黄色晶状固体。有结晶形和无定形两种。结晶形硫不溶于水，稍溶于乙醇和乙醚，溶于二硫化碳、四氯化碳和苯。主要化合价-2、+4和+6，能与氧、氢、卤素(除碘外)和大多数金属化合。用化学交换法或液体热扩散法进行分离制取。硫同位素作示踪剂在化学、地球化学、农业科学和环境科学研究中都有广泛的应用。根据硫化物的同位素分馏，用天然物质中和标样中32S与34S比值的相对千分差δ34S，在地学上作同位素地质温度计，测定地质体中同位素平衡的温度；判断硫及硫化物矿床的成因及其硫源；判别有机矿产的形成机理，寻找石油原岩等。用34S研究大气中SO2、NO2污染物对植物生长的危害。15NO2和34SO2同时存在于环境中对豆株生长有很大干扰，产生“协同效应”。硫同位素还用来研究土壤微生物的代谢规律。
CAS号：
性质：第六族(ⅥA)元素。Z16。硫元素在自然界中有32S 33S 34S、36S四种稳定同位素。核外电子构型都为3s23p4。相对原子质量分别为31.972 070、32.971 456、33.967866和35.967 880。天然丰度分别为95.02％、0.75％、4.21％和0.02％。天然物质的硫同位素组成由34S/32S比值确定的δ(34S)表示，标准品为美国代阿布洛大峡谷(Canyon Diablo)铁陨石中的陨硫铁，简称CDT。黄色晶状固体。有结晶形和无定形两种。结晶形硫不溶于水，稍溶于乙醇和乙醚，溶于二硫化碳、四氯化碳和苯。主要化合价-2、+4和+6，能与氧、氢、卤素(除碘外)和大多数金属化合。用化学交换法或液体热扩散法进行分离制取。硫同位素作示踪剂在化学、地球化学、农业科学和环境科学研究中都有广泛的应用。根据硫化物的同位素分馏，用天然物质中和标样中32S与34S比值的相对千分差δ34S，在地学上作同位素地质温度计，测定地质体中同位素平衡的温度；判断硫及硫化物矿床的成因及其硫源；判别有机矿产的形成机理，寻找石油原岩等。用34S研究大气中SO2、NO2污染物对植物生长的危害。15NO2和34SO2同时存在于环境中对豆株生长有很大干扰，产生“协同效应”。硫同位素还用来研究土壤微生物的代谢规律。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条