钪－4，5－二溴苯基荧光酮－CTMAB－吐温－60多元配合物的分光光度法研究

研究结果表明，在混合表面活性剂ＣＴＭＡＢ－吐温－６０存在下的ｐＨ５．７～６．５的缓冲介质中，Ｓｃ（Ⅲ）与４，５－二溴苯基荧光酮（ＤＢＰＦ）形成高灵敏的多元配合物，其ε＿（５９０）＝２．２６×１０￣５Ｌ·ｍｏｌ￣（－１）·ｃｍ￣（－１），组成比为：Ｓｃ：ＤＢＰＦ：ＣＴＭＡＢ＝１：２：４。采用混合表面活性剂使增溶增敏作用更为显著，并加速了显色反应，增强了配合物的稳定性。而Ｎａ＿２ＳＯ＿４的加入能显著地提高体系的灵敏度。Ｓｃ量在０～０．３６ｕｇ／ｍｌ范围内遵守比尔定律。方法可直接测定合成混合稀土中的Ｓｃ，回收率在９８％～１０５％；结合沉淀分离和ＰＭＢＰ萃取分离，实现了地质试样中痕量Ｓｃ的测定。     

铁（Ⅲ）—对硝基苯基荧光酮—CTMAB—吐温—60多元配合物显色反应研…

Ｆｅ－对硝基苯基荧光酮－ＣＴＭＡＢ在ｐＨ１０．０－１１．２的硼砂－ＮａＯＨ缓冲溶液中形成蓝色多元配合物，其组成为Ｆｅ：ｐ－ＮＰＦ：ＣＴＭＡＢ＝１：２：４。在吐温－６０下，λｍａｘ为１６０ｎｍ，ε６１０＝１．１２×１０＾５Ｌ．ｍｏｌ＾－１．ｃｍ＾－１，Ｆｅ含量在０－０．２μｇ／ｍｌ范围内符合比耳定律。     

3,5—二溴—4—偶氮变色酸苯荧光酮与铝显色反应及应用

研究了在阳离子表面活性剂ＣＴＭＡＢ存在下，Ａｌ与３，５－二溴－４－偶氮变色酸苯基荧光酮的是色反应条件和光变性质。在ｐＨ６．０的ＨＡｃ－ＮａＡｃ缓冲介质中，Ａｌ与试剂形成１：２的红色配合物，最大吸收峰位于５６０ｎｍ处，表观摩尔吸光系数为１．２５×１０＾４Ｌ．ｍｏｌ＾－１．ｃｍ＾－１，Ａｌ的质量浓度为０－０．２ｍｇ／Ｌ时符合比尔定律。     

meso—四（2—磺酸萘基）卟啉与锰（Ⅱ）显色反应研究

研究了新合成的ｍｅｓｏ－四（２－磺酸萘基）卟啉（ＴＮＰＳ４）与Ｍｎ＾２＋的显色反应。在ｐＨ８．０的Ｎａ２Ｂ４Ｏ７－ＨＣｌ缓冲溶液中，ＴＮＰＳ４与Ｍｎ＾２＋形成稳定的配合物，最大吸收波长４７０ｎｍ，配合物组成为ＴＮＰＳ４：Ｍｎ＾２＋＝２：１，表观摩尔吸光系数ε＝１．０３×１０＾５Ｌ·ｍｏｌ＾－１·ｃｍ＾－１，线性范围０．０－５．０μｇＭｎ＾２＋／２５ｍｌ。用于化探样品中Ｍｎ的测定，结果令人满意。     

痕量银与meso－四（对－磺酸基苯基）卟啉显色反应的研究

研究了Ａｇ（Ｉ）与ｍｅｓｏ－四（对－磺酸基苯基）叶琳的光催化显色反应。在ｐＨｌ０的缓冲溶液中形成稳定的Ａｇ（Ｉ）－ＴＰＰＳ＿４－ＣＴＭＡＢ三元配合物，其最大吸收波长为４２６ｎｍ，组成为Ａｇ（１）ＴＰＰＳ＿４：ＣＴＭＡＢ＝１：１：２。表观摩尔吸光系数为２．７９×ｌ０￣５Ｌ·ｍｏｌ￣－１·ｃｍ￣－１，Ａｇ（１）的浓度在０～０．２μｇ／ｍｌ内符合比尔定律。基于此建立的测Ａｇ（Ｉ）方法灵敏度高，结合巯基棉分离干扰，可用于矿物中Ａｇ（Ｉ）的测定。     

钼—氨三乙酸—溴邻苯三酚红—溴化十六烷基三甲基铵体系的显色反应及其应用

在ＰＨ２．５的氯乙酸缓冲介质中，有溴化十六烷基三甲基胺存在下，Ｍｏ与氨三乙酸及溴邻苯三酚红形成胶束混配配合物，该配合物最大吸收波长在６００ｎｍ，摩尔吸光系数为７．２７×１０＾４Ｌ．ｍｏｌ＾－１．ｃｍ＾－１，配合物组成为Ｍｏ（Ⅵ）：ＮＴＡ：ＢＰＲ：ＣＴＭＡＢ＝１：１：２：４。Ｍｏ（Ⅵ）量在０－１．０μｇ／ｍｌ范围内符合比尔定律。由于ＮＴＡ的存在，改善了方法的选择性，可直接分光光度测定矿石及钢中微量Ｍ     

钼－氨三乙酸－溴邻苯三酚红－溴化十六烷基三甲基铵体系的显色反应及其应用

在ｐＨ２．５的氯乙酸缓冲介质中，有溴化十六烷基三甲基铵（ＣＴＭＡＢ）存在下，Ｍｏ（Ⅵ）与氨三乙酸（ＮＴＡ）及溴邻苯三酚红（ＢＰＲ）形成胶束混配配合物，该配合物最大吸收波长在６００ｎｍ，摩尔吸光系数为７．２７×１０￣４Ｌ·ｍｏｌ￣（－１）·ｃｍ￣（－１），配合物组成为Ｍｏ（Ⅵ）：ＮＴＡ：ＢＰＲ：ＣＴＭＡＢ＝１：１：２：４。Ｍｏ（Ⅵ）量在０～１．０ｇ／ｍｌ范围内符合比尔定律。由于ＮＴＡ的存在，改善了方法的选择性，可直接分光光度测定矿石及钢中微量Ｍｏ。     

新型卟啉显色剂TDMAPTPS与钯的显色反应研究

研究了新型水溶性卟啉显色剂ＴＤＭＡＰＴＰＳ与钯的显色反应，在ｐＨ为３．４～５．０缓冲溶液中，适量ＶＣ，ＯＰ，ＳＤＢＳ存在，Ｐｄ（Ⅱ）与显色剂形成１：１稳定配合物，λｍａｘ＝４１３ｎｍ，ε＝１．６５×１０＾５Ｌ．ｍｏｌ＾－１．ｃｍ，Ｐｄ（Ⅱ）浓度在０～３．２μｇ／１０ｍＬ之间服比尔定律。该方法用于实际样品测定，结果满意。     

1，5－二（2－羟基－5－磺基苯基）－3－氰基甲■分光光度法测定煤矸石中微量镓

常温下在ｐＨ４的ＨＡｃ－ＮａＡｃ缓冲体系中，Ｇａ与１，５－二（２－羟基－５－磺基苯基）－３－氰基甲　（ＤＳＰＣＦ）形成稳定的蓝色配合物。该配合物在波长６３０ｎｍ处有最大吸收，其表观摩尔吸光系数为３．８×１０￣４Ｌ·ｍｏｌ￣－１·ｃｍ￣－１，配合比为ｎ（Ｇａ）：ｎ（ＤＳＰＣＦ）＝１：２，显色反应在２０ｍｉｎ内完成，稳定时间至少２４ｈ，Ｇａ量在０～１．８ｍｇ／Ｌ时遵守比尔定律。采用ＴＢＰ萃淋树脂分离干扰元素后可实现煤矸石中Ｇａ的测定。     

邻羧基苯基重氮氨基—4—苯基—2—噻唑光度法测定微量铜的研究

研究了新试剂邻羧基苯基重氮氨基－４－苯基－２－噻唑与Ｃｕ＾２＋的显色反应,在非离子表面活性剂ＴｎｉｔｏｎＸ－１００存在下,于ＰＨ８．６的Ｎａ２Ｂ４Ｏ７－ＨＣｌ缓冲介质中,Ｃｕ＾２＋与该试剂生成１：１的红色配合物,其配合物的最大吸收波长为５１０ｎｍ,摩尔吸光系数为５．４＊１０＾４Ｌ．ｍｏｌ＾－１．ｃｍ＾－１。     

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