储层固相在化学驱替剂中物相变化的实验研究

选择典型的储层粘土矿物钙蒙脱石,高岭石,伊利石,美国钙蒙脱石和新疆克拉玛依油田三采试验区－克二中的Ｓ＾２７储层砂、在常温２５℃下与克市黑液体系,华东黑液体系,聚合物溶液（０．１８％３５３ＯＳ）,碱－表面活性剂－聚合物体系（ＡＳＰ０等驱替剂反应１４４０ｈ。对反应产后固相物的Ｘ射线衍射分析表明钙蒙脱石首先发生阳离子交换生成钠蒙脱石,进而发生溶蚀;高岭石,伊利石和储层砂蝇的骨架矿物主要发生溶蚀和交换生成     

高岭石与碱剂作用后反应液中硅铝元素变化规律研究

本文系统地研究了高岭石与碱剂间的作用对反应后的液相参数进行全面测定，以查清温度，反应时间，碱性驱替剂的种类浓度等因素与液相参数和固相参数的关系。提出高岭石的非一致性溶蚀趋势，并探讨高岭石与碱性驱替剂的作用机理，丰富了化学驱油过程中化学剂与矿物作用方面的基础理论。     

粘土矿物碱耗协同效应研究

选择蒙脱石,高岭石,伊利石等三种在储层中最党风的储层粘土矿物,两两分别按２Ｌ：０,１：１,０：２质量配比组成复配物系列;在３０℃、５０℃温度下按１：５,１：８,１：１０（ｇ／ｍｌ）固／液比分别与１．６％的Ｎａ２ＣＯ３深液反应８ｈ,３６０ｈ;监测反应前后碱液浓度的变化;计算了各条件下各自的绝对碱耗量。结果表明三种粘土矿物中蒙脱石耗碱最大,高蛉石的耗碱量与伊利石的接近;随着固／液比减小和温度升高,矿物     

地质样品中痕量碘的热解——示波极谱法测定

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。     

蒙脱石,高岭石与碱性驱替剂作用时矿物间的协同效应研究

在７５℃下系统地研究了蒙脱石、高岭石、以及蒙脱石和高岭石的复配矿物与７＃碱性驱替剂（ρＮａ２ＣＯ３＝１５ｇ·Ｌ－１）间的作用,采用分光光度法对反应后反应液中的硅铝元素质量密度进行了测定,并对两种矿物单独存在时的结果和共存时的进行了比较,结果表明因为蒙脱石在碱性驱替剂中容易析出硅元素,而高岭石在碱性驱替剂中容易析出铝元素,当二者共存时会相互抑制。并且,蒙脱石的存在会对高岭石析出铝元素产生很大的抑制作用,而高岭石的存在对蒙脱石析出硅元素的抑制作用较小,证明蒙脱石更容易与碱液反应而对整个反应起到控制作用。协同效应研究还表明,蒙脱石的作用与其质量不成比例,当加入很少的蒙脱石也会控制整个反应。这些研究对化学驱中化学剂损耗预测模型的建立具有重大的意义。     

吉林海沟金矿床成矿流体的地球化学特征

海沟金矿床石英中含丰富的三相ＣＯ２－ＮａＣｌ－Ｈ２Ｏ和两相富ＣＯ２包裹体，并与两相的ＮａＣｌ－Ｈ２Ｏ包裹体共生。成矿流体富含ＣＯ２，并有２种类型和来源：高盐度富ＣＯ２的ＮａＣｌ－Ｈ２Ｏ溶液，来源于浆热液；低盐度ＮａＣｌ－Ｈ２Ｏ溶液，来自古大气降水。成矿最佳温度为２２０－３００℃，流体静压力为４－２０ＭＰａ，矿化深度为１－３ｋｍ，流体盐度为２－７ω（ＮａＣｌ）／１０＾－２，总密度为０．６４４ｇ／ｃｍ     

二氧化碳—水体系的拉曼光谱研究

研究了使用石英管熔融封闭法分别在酸性、中性以及碱性条件下,采用ＣａＣＯ３或Ｎａ２ＣＯ３与ＨＣｌ反应制备不同浓度的ＣＯ２标准系列,并对气相、液相中的ＣＯ２进行拉曼光谱研究,得出了定量分析气相ＣＯ２所遵循的规律,即ＣＯ２的浓度与拉曼位移（１３８８．９ｃｍ－１）强度呈线性相关,为定量分析流体包裹体中ＣＯ２的含量奠定了基础。     

粤西河台金矿床的流体包裹体及成矿流体

河台金矿床存在三种类型流体包裹体：低盐度（约１．５￣６ｗｔ％ＮａＣｌ）Ｈ２Ｏ－ＣＯ２包裹体、中等盐度（约６￣１４ｗｔ％ＮａＣｌ）水溶液包裹体、富ＣＯ２包裹体。它们的均一化温度范围在１３０℃至３１０℃之间，捕获时的围压大约为５０￣１７０ＭＰａ。初始的成矿流体是一个低盐度的以Ｈ２Ｏ－ＮａＣｌ－ＣＯ２为主的化学体系，主要源于大气水与变质建造水的混合。在演化过程中，成矿热液流体发生了ＣＯ２发泡和气液两相不     

1—（2—羟基—3,5—二硝基苯基）—3—[4—（苯基偶氮）苯基]—三氮烯与铜的显色反应

研究了新合成的１－（２－羟基－３,５－二硝基苯基）－３－「４－（苯基偶氮）苯基」－三氮烯（ＨＤＮＰＡＰＴ）试剂与铜的显色反应。在乳化剂ＯＰ存在下,ＰＨ１１．０的Ｎａ２Ｂ４Ｏ７－ＮａＯＨ介质中,铜与ＨＤＮＰＡＰＴ形成的红色配合物,其组成比为１：２,λｍａｘ＝５４０ｎｍ,表观摩尔吸光系数ε５４０＝１．７３×１０＾５Ｌ·ｍｏｌ＾－１·ｃｍ＾－１,铜的质量浓度在０￣３６０μｇ／Ｌ符合比尔定律。方法应用于大     

铜—1—（2—吡啶偶氮）—2—萘酚络合物吸附波的研究

在ＰＨ６．２的ＮａＯＨ－ＫＨ２ＰＯ４介质中,Ｃｕ（Ⅱ）与１－（２－吡啶偶氮）－２－萘酚生成络合物,在线性单扫描示波极谱仪上于－０．２５Ｖ处出现一灵敏络合物吸附波。铜的质量浓度在１－４６０μｇ／Ｌ内与峰高呈良好线性关系,检出限０．５μｇ／Ｌ。     

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