X射线荧光光谱法同时测定煤中砷硫磷氯

采用人工混配有限煤炭标准样品粉末直接压片制样，X射线荧光光谱仪同时测量煤中的砷、硫、磷、氯。优化了样品粒度、样品量、助磨剂、制样压力和保压时间等实验条件，用可变α系数法进行基体校正。方法测定范围为As0．0015％-0．0051％、S0．21％-1．44％、P0．003％～0．096％、C10．01％-0．11％；检出限为As 1．2μg／g、S22μg／g、P2．1μg／g、C12．0μg／g。与标准方法对照，结果基本一致。方法快速、简便，满足了煤炭检验需要。     

微波辅助提取-氢化物发生原子荧光光谱法测定土壤中无机砷

建立了微波辅助提取-氢化物发生原子荧光光谱法测定土壤中无机砷的分析方法。用正交试验设计结合单因素试验优化了样品粒度、提取温度、提取时间、固液比等微波提取条件，研究了共存离子对无机砷测定的干扰情况。方法的线性范围为0．25～40．0μg/g，无机砷的检出限为0．05μg/g，样品加标回收率为92．9％～105．0％。方法的精密度（RSD，n=11）为0．3％。与水浴提取法相比，微波辅助提取法具有快速、高效的优势。方法已用于分析3个不同产地有代表性土壤中无机砷含量。     

悬浮液进样-氢化物发生原子荧光光谱法测定土壤中痕量砷锑硒

在原子荧光光谱法传统样品前处理的基础上，提出了悬浮液进样技术。用琼脂作为悬浮剂，水溶液作为校正曲线，对土壤标准样品和实际样品进行测定，结果令人满意，并且省去了冗长的样品化学前处理过程。检出限分别为砷0．33μg／L、锑0．13μg／L、硒0．06μg／L；相对标准偏差分别为：砷3．92％～6．32％、锑1．76％～3．11％、硒3．08％～5．54％；回收率分别为砷98．7％～105．7％、锑99．5％-103．3％和硒94．6％-107．2％。国家一级标准物质的测定结果与标准值相符，实际样品的测定值与传统消化法相比较，结果基本一致。     

应用高频红外碳硫仪测定农用地土壤样品中有机质含量

应用高频红外碳硫仪测定农用地土壤样品中的有机质,避免了传统方法中的试样液体转化环节,测定效率高,但存在土壤样品电磁感应低和基体影响较大等问题。本文通过实验优化了样品称样量、助熔剂铁和钨的添加量等测定条件,结果表明：当样品称样量为0.05g、助熔剂铁添加量为0.40g、钨添加量为1.50g时,有机质测定效果最佳。通过土壤标准物质进行验证,方法检出限为0.003%,相对标准偏差（RSD,n=7）小于4%,测定值与认定值的相对误差小于5%,且不同分析人员的测定结果间没有显著差异。采用本法与重铬酸钾容量法对甘肃省农用地土壤样品进行测定,两种方法测定值的绝对误差为-0.25%~0.28%,测定结果之间呈极显著线性正相关（R²=0.9736）,表明两种方法的一致性很好。本方法的检出限、精密度、准确度均满足农用地土壤样品有机质测定要求。     

石墨炉原子吸收光谱法测定土壤样品中镉

采用磷酸氢二铵作基体改进剂塞曼扣背景石墨炉原子吸收光谱法测定土壤样品中镉，方法检出限DL=0．012μg／g，精密度RSD在3．55％～7．33％，满足了土壤样品中镉测定的镉质量要求。     

粉末进样感耦等离子体发射光谱法测定土壤中多元素

报道了用载样瓶引进土壤粉末样到高频等离子炬进行发射光谱分析的方法，考察了仪器装置及分析测定条件，大气流清洗很好地克服了粉末进样的记忆效应。质量分数为１０~（－６）～１０~（－３）的２０个元素测定的ＲＳＤ（ｎ＝２０）为６．８％～１８％，检出限在１０~（－７）～１０~（－５）级。用土壤标样分析验证，其结果与标准值吻合较好。     

王水水浴消解-冷原子荧光法测定土壤和沉积物中的总汞

土壤和沉积物中的总汞是环境监测的常规项目。不同消解方法对测定结果和分析进度影响较大。本文改进了与其它强氧化体系消解样品具有可对比性的传统王水消解法，利用王水在95℃水浴中一次消解，结合BrCl氧化-SnCl2还原-汞蒸汽吹脱金管预富集-冷原子荧光法测定了土壤和沉积物样品中的总汞。该方法操作简单，数据可靠，精度高，土壤和沉积物标准样品测定的相对误差为-4．6％～10．1％，回收率91．1％～111．6％；平行样测定重现性良好，提高了分析速度和准确度。     

悬浮液进样—石墨炉原子吸收光谱法测定琥珀中微量铅

报道了以NH4H2PO4为基体改进剂，采用悬浮体制样石墨炉原子吸收光谱法直接测定琥珀中微量铅的方法。试验了影响测定的主要因素。在优化实验条件下。方法的检出限为0．038μg／g，Pb的质量浓度为0～80μg／L时，工作曲线线性关系良好。对于ω(Pb)=5．71μg／g样品的测定，相对标准偏差(RSD，n=5)为6．83％。     

泡沫塑料富集-石墨炉原子吸收光谱法测定地质样品中微量铊

采用HF-HClO4-HNO3-HCl溶解样品，泡沫塑料富集-石墨炉原子吸收光谱法测定岩石、土壤、水系沉积物等地质样品中微量铊。以抗坏血酸为基体改进剂，Fe^3＋加入量选择100mg，灰化温度为600℃，原子化温度为1600℃。方法用于测定国家一级标准物质，结果与标准值基本一致。方法精密度（RSD，n=8）为2．88％～6．27％，回收率为95．24％～101．3％，检出限可达0．058μg/g。     

原子荧光光谱法测定地质样品中的痕量锗

分析了溶矿过程中HNO3、H2SO4、HClO4、H3PO4等对Ge的影响，采用AgNO3滤气装置消除气相干扰，测定了地质样品中的痕量锗，方法检出限为0．06μg／g，用土壤国家一级标准物质GBW 07401～GBW 07408验证方法，结果与标准值相符，其相对标准偏差(RSD，n=12)为3．66％～6．11％。     

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.     

Définition d'une limite multicritère ; stratigraphie du passage Campanien–Maastrichtien du site géologique de Tercis (Landes,SW France)Definition of a multi-criteria boundary; stratigraphy of the Campanian–Maastrichtian interval of the geological site at Tercis (Landes,SW France)

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.     

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.     

Late Wuchiapingian (Late Dzhulfian,early Late Permian) limestone olistolites within the Tertiary flysch of Glypia Unit (Mount Parnon,central–eastern Peloponnesus,Greece)

Some olistolites reworked in a Tertiary flysch of Mount Parnon (Peloponnesus, Greece) exhibit a Late Permian assemblage, dominated by Paradunbarula (Shindella) shindensis, Hemigordiopsis cf. luquensis and Colaniella aff. minima. This association corresponds to the Late Wuchiapingian (=Late Dzhulfian), a substage whose algae and foraminifera are generally little known. Contemporaneous limestones crop out in the middle part of the Episkopi Formation in Hydra, but they are rather commonly reworked in Mesozoic and Cainozoic sequences. The palaeobiogeographical affinities shared by the foraminiferal markers of Greece, southeastern Pamir, and southern China, are very strong (up to the specific level), and are congruent with the Pangea B reconstructions. To cite this article: E. Skourtsos et al., C. R. Geoscience 334 (2002) 925–931.     

PALEONTOLOGY

正20141596 Liu Yunhuan(School of Earth Sciences and Resources,Chang’an University,Xi’an 710054,China);Shao Tiequan Early Cambrian Quadrapyrgites Fossils of Xixiang Boita in Southern Shaanxi Province(Journal of Earth Sciences and Environment,ISSN1672-6561,CN61-1423/P,35(3),2013,p.39-43,3 illus.,20 refs.)     

GEOCHEMICAL EXPLORATION

正20141719 Chen Zhijun(State Key Laboratory of Geological Processes and Mineral Resources,China University of Geosciences,Wuhan 430074,China);Chen Jianguo Automated Batch Mapping Solution for Serial Maps:A Case Study of Exploration Geochemistry Maps(Journal of Geology,ISSN1674-3636,CN32-1796/P,37(3),2013,p.456-464,2 illus.,2 tables,10 refs.)     

MICROPALAEONTOLOGY

正20140962 Chen Fenning(Xi’an Institute of Geology and Mineral Resources,Xi’an710054,China);Chen Ruiming Late Miocene-Early Pleistocene Ostracoda Fauna of Gyirong Basin,Southern Tibet(Acta Geologica Sinica,ISSN0001-5717,CN11-1951/P,87(6),2013,p.872-886,6illus.,56refs.)     

PETROLOGY

正1.IGNEOUS PETROLOGY20142008Cai Jinhui(Wuhan Center,China Geological Survey,Wuhan 430205,China);Liu Wei Zircon U-Pb Geochronology and Mineralization Significance of Granodiorites from Fuzichong Pb-Zn Deposit,Guangxi,South China(Geology and Mineral Resources of South China,ISSN1007-3701,CN42-1417/P,29(4),2013,p.271-281,7illus.,     

ENVIRONMENTAL GEOLOGY

正20141205Cheng Weiming(State Key Laboratory of Resources and Environmental Information System,Institute of Geographic Sciences and Natural Resources Research,CAS,Beijing 100101,China);Xia Yao Regional Hazard Assessment of Disaster Environment for Debris Flows:Taking Jundu Mountain,Beijing as an     

PROSPECTING EXPLORATION

正20141266Fan Chaoyan(Guangdong Provincial Key Laboratory of Mineral Resources and Geological Processes,Guangzhou 510275,China);Wang Zhenghai On Error Analysis and Correction Method of Measured Strata Section with Wire Projection Method(Journal of