电感耦合等离子体发射光谱法同时测定碳酸盐岩中19个元素

使用ＪＹ７０Ｐ电感耦合等离子体发射光谱仪,分别考察了一些主要基体对待测元素的各种干扰。综合各种干扰因素。采用干扰系数校正法消除综合干扰,拟定了适用于包括碳酸盐岩石的区域化探样品中１９个元素的电感耦合等离子体原子发射光谱同时测定方法。１９个元素的测定限在０．２０￣８．０μｇ／ｇ。对碳酸盐岩石国家一级标准物质ＧＢＷ０７１０８进行检测,各元素的结果与标准值吻合,相对标准偏差在１．２￣５．３％。     

电感耦合等离子体原子发射光谱法测定铅锑合金中九个杂质元素

拟定了电感耦合等离子体原子发射光谱（ＩＣＰ－ＡＥＳ）测定铅锑合金中Ａｓ、Ｂｉ、Ｃａ、Ｃｄ、Ｃｏ、Ｆｅ、Ｍｎ、Ｓｅ和Ｚｎ等九个元素的分析方法,考察了Ｐｂ、Ｓｂ基体对待测元素的干扰情况。样品以ＨＮＯ３分解,酒石酸抑制Ｓｂ水解,ＩＣＰ－ＡＥＳ同时测定多元素。方法对各元素的测定限在０．０７～５．２μｇ／ｇ,相对标准偏差（ｎ＝８）为０．７８％～２５．５％,加标回收率均大于８６％,经与原子吸收光谱法和原子荧光     

电感耦合等离子体原子发射光谱法测定高纯氧化钇中稀土杂质元素

拟定了电感耦合等离子体原子发射光谱法测定高纯氧化钇中１４个稀土杂质的方法,选择了仪器的最佳工作条件,考察了基体效应的影响,在选定条件下,１４个稀土元素的检出限为（０．０６～１．１０）μｇ／ｇ,相对标准偏差（ｎ≥１０）为０．９８％～９．３％,加标回收率为９３％～１１４％。方法不经预分离富集处理,在大量基体中成功地测定了含量在μｇ／ｇ级的稀土杂质元素。     

电感耦合等离子体原子发射光谱法测定碳酸盐岩石中19种元素

采用单道扫描电感合等离子体原子发射光谱仪，研究了大量Ｃａ、Ｍｇ基体对被测元素的光谱干扰，优化了ＩＣＰ的工作参数，采用计算机背影扣除、干扰校正系数校正光谱干扰，基体匹配法克服Ｃａ、Ｍｇ的基体效应，拟定了以ＨＮＯ３、ＨＦ、ＨＣＩＯ４处理试样，ＩＣＰ－ＡＥＳ法直接测定碳酸盐岩品中１９个元素的分析流程，方法简便，快速、准确度高、精度好，分析国家一级岩石标准物质和３个碳酸盐岩石样品，结果满意。     

电感耦合等离子体发射光谱法测定锂辉矿中的主次痕量元素

建立了采用电感耦合等离子体发射光谱测定锂辉矿中的主、次、痕元素的方法。样品经酸溶和碱熔处理后，直接进行了２０种元素的测定。其检出限在０．５－１４．６μｇ／ｇ。样品测定的ＲＳＤｎ＝１１），其主量成分＜０．５％，痕量成分＜１０％。标准加入回收率为８７．２％－１１４．３％。     

电感耦合等离子体发射光谱法直接测定地质试样中铀

采用电感耦合等离子体发射光谱对地质试样中高低含量的铀的直接测定方法进行了研究，选择了仪器的最佳工作条件，考察了共存元素对测定的干扰情况。选定条件下，方法的检出限在λＵ３８５．９５８ｎｍ和４０９．０１４ｎｍ分别０．６μｇ／ｇ和０．７μｇ／ｇ，检测范围可以在ω（Ｕ）１０＾－６－１０＾－２水平。     

发射光谱法测定碳酸盐岩石样品中8个痕量元素

文章报道了用于测定碳酸盐岩石样品中痕量Ｂｅ，Ｂ，Ｓｎ，Ａｇ，Ｍｏ，Ｃｕ，Ｐｂ和Ｇａ的交流电弧光谱定量分析方法，研究了多种缓冲剂的缓冲效果和分馏效应，选择了最佳工作电流，电极规格和内元素。方法检出限为０．０４～２．８μｇ／ｇ精密度ＲＳＤ（ｎ＝１０）在５．２％～９．９％，经国家一极碳酸盐岩石标样和批量岩石样分析均获满意结果，方法能满足区域化探要求。     

人发中微量元素分析质量监控实践

以电感耦合等离子体原发射光谱检测人发中微量元素的质量监控方案为例,通过建立空白值控制图及准确度控制图,对含量范围在（ｘ．０～ｘｘｘ．０）μｇ／ｇ的Ｃｕ、Ｚｎ、Ｆｅ、Ｃａ、Ｐｂ等元素的分析质量进行了有效的监控,从而获得了准确可靠的分析结果。     

在线液 - 液萃取微型万用分相器的设计和应用 Ⅲ.流动注射液液萃取电感耦合等离子体原子发射光谱测定矿石中钼和钨

设计的在线液液萃取分相器及相应流路系统与电感耦合等离子体原子发射光谱联用具有良好的分析性能。用于测定地质样品中的Ｍｏ和Ｗ，检出限（３σ）分别为３６μｇ／Ｌ和２８μｇ／Ｌ，两元素在０～２．０ｍｇ／Ｌ有良好的线性。对于１ｍｇ／Ｌ的Ｍｏ和Ｗ的测定，ＲＳＤ（ｎ＝７）分别为４０％和２７％，测定速率为２５～３０／ｈ。     

感耦等离子体质谱法测定高纯氧化钪中15个痕量稀土杂质的研究

文章报道了用感耦等离子体质谱法测定高纯氧化钪中１５个痕量稀土杂质的研究，考察了测定中的各种干扰和影响因素，选择Ｃｓ为内标元素补颈体抑制效应和灵敏度漂移。各稀土元素的检出限在０．００５－０．０２７ｎｇ／ｍｌ范围，标准加入回收率为９４．５％－１０３．７％，精密度为０．８５％－１．９５％，称取１０ｍｇ样品，酸溶解后可直接测定高纯氧化钪中总量低于２μｇ／ｇ的１５个稀土杂质。     

The terrestrial fauna of the Late Triassic Pant-y-ffynnon Quarry fissures,South Wales,UK and a new species of Clevosaurus (Lepidosauria: Rhynchocephalia)

Pant-y-ffynnon Quarry in South Wales yielded a rich cache of fossils in the early 1950s, including articulated specimens of new species (the small sauropodomorph dinosaur Pantydraco caducus and the crocodylomorph Terrestrisuchus gracilis), but no substantial study of the wider fauna of the Pant-y-ffynnon fissure systems has been published. Here, our overview of existing specimens, a few described but mostly undescribed, as well as freshly processed material, provides a comprehensive picture of the Pant-y-ffynnon palaeo-island of the Late Triassic. This was an island with a relatively impoverished fauna dominated by small clevosaurs (rhynchocephalians), including a new species, Clevosaurus cambrica, described here from a partially articulated specimen and isolated bones. The new species has a dental morphology that is intermediate between the Late Triassic Clevosaurus hudsoni, from Cromhall Quarry to the east, and the younger C. convallis from Pant Quarry to the west, suggesting adaptive radiation of clevosaurs in the palaeo-archipelago. The larger reptiles on the palaeo-island do not exceed 1.5?m in length, including a small carnivorous crocodylomorph, Terrestrisuchus, and a possible example of insular dwarfism in the basal dinosaur Pantydraco.     

The effect of water on accessory phase solubility in subaluminous and peralkaline granitic melts

The solubilities of columbite, tantalite, wolframite, rutile, zircon and hafnon were determined as a function of the water contents in peralkaline and subaluminous granite melts. All experiments were conducted at 1035 °C and 2 kbar and the water contents of the melts ranged from nominally dry to approximately 6 wt.% H₂O. Accessory phase solubilities are not affected by the water content of the peralkaline melt. By contrast, solubilities are affected by the water content of the subaluminous melt, where the solubilities of all the accessory phases examined increase with the water content of the melt, up to 2 wt.% H₂O. At higher water contents, solubilities are nearly constant. It can be concluded that water is not an important control of accessory phase solubility, although the water content will affect diffusivities of components in the melt, thus whether or not accessory phases will be present as restite material. The solubility behaviour in the subaluminous and peralkaline melts supports previous spectroscopic studies, which have observed differences in the coordination of high field strength elements in dry vs. wet subaluminous granitic glasses, but not for peralkaline granitic glasses. Lastly, the fact that wolframite solubility increases with increasing water content in the subaluminous melt suggests that tungsten dissolved as a hexavalent species.     

Quaternary stresses revealed by calcite twinning inversion: insights from observations in the Savonnières underground quarry (eastern France)

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).     

HYDROGEOLOGY

正20141756 Chen Ruige(Mathematical College,China University of Geosciences,Beijing100083,China);Zhou Xun Numerical Simulation of Groundwater Level Fluctuation in a Coastal Confined Aquifer with Sloping Initial Groundwater Level Induced by the Tide(Geological Bulletin of China,ISSN1671-2552,CN11-4648/P,32(7),2013,p.1099-1104,6 illus.,16 refs.) Key words:confined water,groundwater level     

METAMORPHIC PETROLOGY

正20141408 Cai Jia(Institute of Geology,Chinese Academy of Geological Sciences,Beijing100037,China);Liu Fulai Petrogenesis and Metamorphic P-T Conditions of Garnet-Spinel-Biotitebearing Paragneiss in Danangou Area,Daqingshan-Wulashan Metamorphic Complex Belt(Acta Petrologica Sinica,ISSN1000-0569,CN11-1922/P,29(7),     

SERIALS

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GEOPHYSICAL EXPLORATION

正20142386An Guoying(China Aero Geophysical Survey and Remote Sensing Center for Land and Resources,Beijing 100083,China)Application of Satellite Remote Sensing in Regional Hydrogeological Investigation:Taking Cenozoic Strata in Wenquan Sheet(1∶250 000)of Karakoram Range as an Example(Geosci-     

QUATERNARY GEOLOGY & GEOMORPHOLOGY

正20141016An Chengbang(Key Laboratory of Western China’s Environmental Systems,Ministry of Education,Lanzhou University,Lanzhou 730000,China);Zhao Yongtao Lake Records during the Last Glacial Maximum from Xinjiang,NW China and Their Climatic Impli-     

PETROLEUM GEOLOGY

正20141538 Cao Qing(School of Earth Sciences and Engineering,Xi’an Petroleum University,Xi’an 710065,China);Zhao Jingzhou Characteristics and Significance of Fluid Inclusions from Majiagou Formation,Yichuan Huangling Area,Ordos Basin(Advances in Earth Science,ISSN1001-8166,CN62-1091/P,28(7),2013,p.819-828,7 illus.,3 tables,43 refs.)     

GEOCHEMISTRY

正20142002 Wei Hualing(Institute of Geophysical and Geochemical Exploration,Chinese Academy of Geological Sciences,Langfang065000,China);Zhou Guohua Element Content and Mineral Compositions in Different Sizes of Soil in Tongling Area,Anhui Province(Geological Bulletin of China,ISSN1671-2552,CN11-4648/P,32(11),2013,p.1861