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1.
电感耦合等离子体发射光谱分析商代原始瓷样   总被引:4,自引:2,他引:2  
古丽冰  刘伟 《岩矿测试》1999,18(3):201-204
采用Li2CO3-H3BO3熔融和HF-HNO3-HClO4酸分解样品,电感耦合等离子体原子发射光谱法同时测定古陶瓷样品中18种主,次量元素,讨论了前处理过程中的一些问题,并造反了最佳实验条件。方法经国家一级标准物质验证,测定结果与标准值吻合,大多数元素的RSD(n=10)〈5%。  相似文献   

2.
研究了二个三元体系Li+/CO2-3,B4O2-7H2O(1)和K+/CO2-3,B4O2-7H20(2)298K时的相平衡关系和平衡液相的物化性质(密度、折光密、粘度、电导率、pH值)。研究表明:这二个三元体系均属简单共饱型,无复盐或固溶体形成。体系(1)的两段溶解度曲线对应于无水Li2CO3和Li2B4O7·3H2O结晶区,体系(2)的两段溶解度曲线对应于K2CO3·3/2H2O和K2B4O7·4H2O结晶区。  相似文献   

3.
冀东高级变质岩石的流体包裹体研究   总被引:5,自引:5,他引:5  
刘树文 《岩石学报》1995,11(4):375-385
冀东高级变质的石榴石斜长片麻岩、含或不含石榴石的角闪二辉斜长片麻岩、紫苏花岗岩、斜长角门岩等岩石中的流体包裹体主要有4类,按形成的先后顺序依次为:(1)H2O和CO2两液相包裹体,CO2的部分均一温度是-12℃,密度1.04g/cm3,H2O含量21%~39%(mole%),CO2含量50%~71%(mole%);(2)CO2液相包裹体,冰点温度-56℃~-61℃,均一温度-7.4℃~-35.1℃,CO2密度约为1.05g/cm3,CO2含量82.1%~98.4%(mole%),还有少量的CH4、N2和H2等组分;(3)H2O和CO2多相包裹体,CO2的部分均一温度7℃~28℃,CO2密度为0.64~0.93g/cm3,气相组分以CO2、CH4和CO为主,液相成分主要是H2O和CO2;(4)多世代盐水溶液包裹体,冰点温度-0.5℃~-20℃,盐度0.87%~22.8%(wt%),盐水密度0.7~1.05g/cm3,均一温度在150℃~200℃和约300℃,存在两个峰值。不同世代的流体包裹体记录了等密度降温的P-T路径。包裹体反映的变质作用早期降温过程流体的H2O/H2O+CO2(mole)比值降低,晚期升高  相似文献   

4.
地质样品中痕量碘的热解——示波极谱法测定   总被引:4,自引:1,他引:3  
提出了在1000℃高温中热解地质样品,以5g/L NaOH溶液为吸收液,以10%NH3·H2O-36g/L NH4Cl溶液-20g/L Na2B4O7·6H2O溶液-16g/L Na2SO3溶液为底液,用二阶导数示波极谱测量痕量碘。方法的检出限为0.08μg/g,精密度(RSD)为5.5%。经地质标准物质验证,测定值与推荐值吻合。  相似文献   

5.
本文叙述了用原子吸收光谱法(AAS)测定地质样品中金的方法,该法包括顺序使用HBr-Br2和王水〔HCl-HNO3(3+1)〕消化的改进程序。焙烧样品首先用HBr-Br2混合物处理样品。金从水相进入有机相,干渣再用王水浸取,金在Sn(Ⅱ)Cl2溶液中同亚碲酸钾共沉淀。沉淀萃入甲苯,金制成王水溶液,最后喷雾进入空气-乙炔火焰。该方法地各种基体的不同材料中金的测定。  相似文献   

6.
青藏高原五道梁冻土活动层表面二氧化碳和甲烷的排放   总被引:9,自引:3,他引:9  
林清  金会军  程国栋  李宁 《冰川冻土》1996,18(4):325-330
通过静态箱取样方法,首次获得青藏高原冻土活动层排放气体。分析测定结果表明,CH4含量为0.63~1.54μg/g,平均为1.19μg/g,大多数样品CH4含量低于当地大气CH4含量(1.32μg/g);CO2含量为0.15%~0.27%,平均为0.21%,明显高于大气CO2的浓度(0.069%)。CH4、CO2含量具有一定的日变化特征。CH4排放率为-0.032~0.048mgm-2h-1,平均为0.001mgm-2h-1;CO2排放率为-56.503~61.425mgm-2h-1,平均为0.095mgm-2h1。从所获得的冻土排放气体中CH4和CO2的浓度来看,这种干燥寒冷的高原冻土活动层表面CH4排放较少,CO2的排放较高  相似文献   

7.
铀矿石和固体环境样品用Na2O2,NaOH在650°C快速熔融后,用HCl中和到pH值近似为9,以Fe(OH)3载带210Po,调HCl酸度为0.2-0.4mol/L,用抗坏血酸保护镀片,在70°C时自镀3h,210Po的回收率可达97.8±1.4%。产生的硅胶不影响测量结果。  相似文献   

8.
腐殖酸中硼的快速分光光度法测定   总被引:1,自引:0,他引:1  
杨苓 《地质实验室》1997,13(1):11-13
用HCl和H2O2分解经570℃灰化后的腐殖酸样品,在PH4-6的条件下,样品中的B与水杨醛-H酸钠盐混合显色液形成可溶性棕黄色络合物,其最大吸收峰在410nm-420nm处,B量在0-16μg/ml服从比尔定律,方法用于腐殖酸中B的测定。  相似文献   

9.
塞曼原子吸收法测定大洋多金属结核中的铜钴镍   总被引:1,自引:0,他引:1  
刘昌岭  张红 《岩矿测试》1997,16(2):98-100108
报道以HNO3-HF-HClO4分解多金属结核样品,用日立180-80偏振塞曼原子吸收分光光度计测定Cu、Co和Ni的方法。试验了介质及共存元素对测定的影响,选择了最佳测定条件。用该法测定了大洋锰结核标准物质中的Cu、Co、Ni,结果与标准值符合,且方法已应用于大批量样品分析中。对这些标样6次测定的RSD分别是Cu0.49% ̄1.99%,Co1.86% ̄2.66%,Ni0.46% ̄1.96%。  相似文献   

10.
本文通过钢铁工业废水淋溶钢铁工业渗漏区土壤,不同pH值,不同含Ca^2+,F^-浓度与放心水与工业淋溶各种土壤,以及电厂冲灰水淋溶粉煤灰的三种试验,讨论废水中C6H5OH、CN^-AS、Cr,Pb,Zn,H2S,BOD,COD,F^-,Cl^-,SO^2-R,NO^-3,NH^+4,Na^+和硬度等的污染与自净规律,并提出了防治地下水污染的措施。  相似文献   

11.
Lithostratigraphy, physicochemical stratigraphy, biostratigraphy, and geochronology of the 77–70 Ma old series bracketing the Campanian–Maastrichtian boundary have been investigated by 70 experts. For the first time, direct relationships between macro- and microfossils have been established, as well as direct and indirect relationships between chemo-physical and biostratigraphical tools. A combination of criteria for selecting the boundary level, duration estimates, uncertainties on durations and on the location of biohorizons have been considered; new chronostratigraphic units are proposed. The geological site at Tercis is accepted by the Commission on Stratigraphy as the international reference for the stratigraphy of the studied interval. To cite this article: G.S. Odin, C. R. Geoscience 334 (2002) 409–414.  相似文献   

12.
13.
Calcite samples were extracted both from the rock matrix and the superficial coating of a karstified fault plane of an underground quarry, located in the eastern border of the Paris basin. The karstification is dated as Quaternary. Analysis of mechanical calcite twinning reveals that only the calcite matrix has also undergone a compression trending WNW that can be attributed to the Mio-Pliocene alpine collision. Both coating and matrix have undergone a strike-slip regime with σ1 roughly trending north–south, that could correspond to the regional present-day state of stress, a strike-slip compression rather trending NNW, modified by local phenomena. To cite this article: M. Rocher et al., C. R. Geoscience 335 (2003).  相似文献   

14.
正20141520 Bo Ying(Key Laboratory of Metallogeny and Mineral Assessment,MLR,Beijing 100037,China);Liu Chenglin Saline Spring Hydrochemical Characteristics and Indicators for Potassium Exploration in Southwestern and Northern Tarim Basin,Xinjiang(Acta Geoscientica Sinica,ISSN1006-3021,CN11-3474/P,34(5),2013,p.594-602,5 illus.,3 tables,28 refs.)  相似文献   

15.
正20141243Chen Ge(Hangzhou Research Institute of Petroleum Geology,PetroChina,Hangzhou 310023,China);Si Chunsong Study on Sedimentary Numerical Simulation Method of Fan Delta Sand Body(Journal of Geology,  相似文献   

16.
正20142599Chen Sanming(Guangxi Key Laboratory of Concealed Deposits Exploration,Guilin University of Technology,Guilin541004,China);He Yuzhou Block Model and Reserves Estimation of Panzhihua Iron Deposit Based on 3D Geological Modeling(Journal of Guilin University of Technology,ISSN1674-9057,CN45-1375/N,33(4),2013,p.610-615,9illus.,1table,15refs.)  相似文献   

17.
正20140594 Bai Daoyuan(Hunan Institute of Geology Survey,Changsha 410016,China);Zhong Xiang Faults in the Jingzhou Basin and Their Tectonic Settings(Geotectonica et Metallogenia,ISSN1001-1552,CN44-1595/P,37(2),2013,p.173-183,6illus.,59refs.)Key words:basin evolution,tectonic setting,South China In the Upper Paleozoic and Jurassic se-  相似文献   

18.
正20141912Cao Hui(State Key Laboratory for Continental Tectonics and Dynamics,Institute of Geology,Chinese Academy of Geological Sciences,Beijing 100037,China)Gravitational Collapse and Folding during Orogenesis:A Comparative Study of FIA Trends and Fold Axial Plane Traces(Geology in China,ISSN1000-3657,CN11-1167/P,40(6),2013,p.1818-1828,9illus.,35refs.,with  相似文献   

19.
PALEOZOOLOGY     
正20141609 Chen Guiying(College of Earth Sciences,Guilin University of Technology,Guilin 541004,China);Han Nairen New Materials of Stylophora from the Upper Cambrian of the Jingxi Area,Guangxi,South China(Acta Palaeontologica Sinica,ISSN0001-6616,CN32-1188Q,52(3),2013,p.288-293,2 illus.,12 refs.)Key words:Stylophora,Guangxi  相似文献   

20.
GEOPHYSICS     
正20140634 Cao Lingmin(Key Laboratory of Marine Geology and Environment,Institute of Oceanology,Chinese Academy of Sciences,Qingdao 266071,China);Xu Yi Finite Difference Tomography of the Crustal Velocity Structure in Tengchong,Yunnan Province(Chinese Journal of Geophysics,ISSN0001-5733,CN11-2074/P,56(4),2013,p.1159-1167,6illus.,35refs.,with English abstract)  相似文献   

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