太平洋多金属结核及沉积物标准物质研制

太平洋多金属结核及深海沉积物标准物质,ＧＳＰＮ－２,３和ＧＳＭＳ－２,３,４个样品已研制完成。ＧＳＰＮ－２,３和ＧＳＭＳ－２采自太平洋ＣＣ区,ＧＳＭＳ－３采自中太平洋海盆（ＣＰ区）。原样被加工成－２００目（７４μｍ）的均匀粉未,其均匀性采用高精度的Ｘ射线荧光光谱法检测。样品的特性值采用国内外多实验室协同分析的方式定值,有包括台湾大学在内的１４个国内实验室和１８个国外实验室参加了合作分析。测试组分分别达７９和８１个,定值组分６３个。全组分的百分总和分别为：９９．７％,９９．５％,９９．８％和９９．７％。这４个标准物质已于１９９７年被国家技术监督局批准为国家一级标准物质,序号分别为ＧＢＷ０７２９５,ＧＢＷ０７２９６,ＧＢＷ０７３１５和ＧＢＷ０７３１。     

塔里木盆地原油轻烃地球化学特征

通过塔里木盆地５４０个原油要品中轻烃,尤其是Ｃ７烃类异构烷烃、环烷烃和正构烷烃的研究,认识到２－ＭＨ与３－ＭＨ化合物之间的相关性要高于２－ＭＨ与２－ＭＰ化合物之间的相关性,而ＭＣＰ与ＭＣＨ的化合物之间的相关性最差。原油Ｋ１值分布在０．７８－１．５４之间,其中８０％原油样品的Ｋ１值为０．９０－１．２０。原油中（２－ＭＨ＋２,３－ＤＭＰ）与（３－ＭＨ＋２,４－ＤＭＰ）占总径（Ｃ４－Ｃ７）的百分比的变化     

冲击粉碎法制备针状硅灰石微粉的研究

硅灰石是一种钙的偏硅酸盐类矿物,化学分子式为Ｃａ［ＳｉＯ３］,含４８－３％ＣａＯ和５１－７％的ＳｉＯ２。天然硅灰石常呈白至灰白色,玻璃到珍珠光泽,密度２－７８～２－９１ｇｃｍ３,硬度为４－５～５,通常为针状、放射状、纤维状集合体,甚至微小颗粒仍保持纤维状结构［１］。由于硅灰石具有特殊的纤维状结构及优良的物理、化学性质,使其在工业生产中有广泛的应用,如陶瓷、塑料、橡胶、冶金铸造、磨料、焊条、玻璃、矿棉、水泥、造纸、石棉代用品等［２,３］。随着研究的深入,对硅灰石在非陶瓷方面（造纸、涂料、塑料、石…     

人—机—环境系统工程理论在现代工程设计中的应用

本文扼要叙述了人－机－环境系统工程理论在现代工程设计及冶金工程设计中的应用并指出了工程及其设计是典型且复杂的人－机－环境系统。为使这个复杂系统真正具有安全、高效、经济、舒适等综合效能,必须在工程设计阶段就考虑人－机－环境系统工程要求,处理好人－机、机－环、人－环等关键,并贯穿于工程设计的全过程及全部设计任务。只有这样才能使工程及其设计系统的人、机、环三要素发挥最佳作用,从整体上达到最优化,给企业带     

在线液—液萃取微型万用分相器的设计和应用：Ⅱ.流动注射溶剂萃取分光？…

设计了一种实用的玻璃重力分相器及相应的萃取流系统,用于在一萃取分光光度测定微量碘,萃取时Ｕ水：Ｕ有机＝３０：１,线性范围在０－３．００ｍｇ／ＬＩ＾－效果良好。     

PWM驱动电机的电流环设计

总结了PWM驱动电机电流环的设计及提取反馈电流的方法，提出了一种无超调的电流环设计方法－－积分反馈校正方法，并探讨了小电流时电流环的设计各种获取电流的方法。     

用于原子吸收光谱分析的在线流动注射液—液萃取…

本文对在线液－液萃取流路系统进行了研究，采用一种新型相分离器－重力相分离器和提出了一个萃取镉的新体系：Ｃｄ－ＫＩ－抗坏血酸－联苯重氮撑氨基偶氮苯，并用所设计的流路对矿石中痕量镉进行了测定，在采样频率为２０ｈ＾－１时，方法的灵敏度比直接测定提高１００倍，检出限为０．５ｕｇ．１＾－１，相对标准偏差为１．１％。     

采用现代化设计方法进行钻塔设计

在ＴＧＳ－１Ａ型工程钻机的设计中，在ＡＳＴ３８６计算机上应用ＳＡＰ－５Ｐ线性结构静力、动力分析程序进行钻塔设计，获得了重要的理论数据，并以此为依据确立了更好的结构设计方案。     

乌兰格尔——山海关隆起的形成与控煤作用

本隆起是沿磴口－乌兰格尔－山海关－宽甸东西一线，并向东西继续延伸的一条整体隆起构造。根据该隆起在磴口－宽甸间不同地段地质构造的差异，可由西向东划分为：磴口－清水河、清水河－山海半、山海关－宽甸三个隆起段。本文对其各段隆起的形成和控煤作用进行了分析与探讨。     

腾冲硅藻土层孢粉组合特征

腾冲县位于云南省西部。境内硅藻土矿（层）共划分了五个孢粉组合带：单缝孢－（松、铁杉、云杉粉）－栎粉（栗、桤木、桦粉）孢粉组合带（Ⅰ）。时代：上新世。单缝孢－松科－栎孢粉组合带（Ⅱ）。时代：早更新世早期。松科－栎－禾本科、蒿孢粉组合带（Ⅲ）。时代：中更新世。单缝孢－松科－栎－禾本科、莎草科孢粉组合带（Ⅳ）。时代：晚更新世。单缝孢－栎、桤木－莎草科、禾本科（含羞草）孢粉组合带（Ⅴ）。时代：全新世。     

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