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Micromineralogy of ＂Black Shale＂ Disseminated- Sulphide Gold Ore Deposits of the Ayan-Yuryakh Anticlinorium （North-East of Russia）

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Journal of Earth Science and Engineering 2012年第12期2卷 744-753页

作者： Olga Sotskaya Nikolay Goryachev Elena Goryacheva Elena Nikitenko North-East Interdisciplinary Scientific Research Institute n.a. N.A. Shilo Far East Branch Russian Academy of Sciences (NEISRI feb ras) Magadan 685000 Russia Matrosov Mine Joint Stock Company Magadan 685000 Russia

The results of investigation of micromineralogy of disseminated-sulphide gold ore deposits of the Yana-Kolyma belt; the investigation was conducted via electron microscopy using a QEMSCAN （Quantitative Evaluation of Minerals by Scanning Electron Microscopy） hardware and software instrument equipped with a Quantax quantitative analysis system. The following micro-mineral phases have been detected： native gold and silver, selenides of Au and Ag （naumanite and fishesserite （？）, hessite, sulfoarsenides of Ni and Co （gersdorffite, cobaltite, rammelsbergite）, molibdenite and platinum group minerals. Our findings in disseminated sulfide ores selenides of Au and Ag, and molybdenite, together with the findings of platinum group minerals and Ni and Co, emphasize the ＂black shale＂ specifics character of these types of deposits.

关键词： Gold deposits micromineralogy electron microscopy black shale selenides of Au and Ag sulfoarsenides of Ni and Co platinum group minerals North-East of Russia.

Boundary of Cretaceous and Paleogene continental deposits in Zeya-Bureya Basin,Amur(Heilongjiang)River region

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Global Geology 2011年第3期14卷 144-159页

作者： Valentina S. Markevich Eugenia V. Bugdaeva Abdul R. Ashraf SUN Get Institute of Biology and Soil Science FEB RAS Vladivostok 690022 Russia Institute of Geosciences University of Tuebingen Tuebingen 72074 Germany Key-Lab for Evolution of Past Life MOEC （Jilin University） Changchun 130026 China College of Paleontology Shenyang Normal University Shenyang 110034 China

It was conducted the comparison of palynological assemblages of the Middle Tsagayan,Upper Tsagayan subformations,Furao and Wuyun formations from Zeya-Bureya Basin of Amur (Heilongjiang) River region with assemblages obtained from the marine deposits of Northeast Russia,Sakhalin,Kuril,and Hokkaido Islands,dated by ammonites,foraminifers and other invertebrates. Based on detail correlation,the geological age of the terrestrial beds was defined. The guide fossils are recognized Marsypiletes cretacea,Tricolpites variexi- nus,Aquilapollenites conatus,A. stelkii,A. rombicus,Integricorpus bellum,Pseudointegricorpus clarireticula- tus,Triprojectus amoenus,Orbiculapollis lucidus,Wodehouseia aspera,Quercoidites minor,which had last oc- currence in the late Maastrichtian. The Danian palynofloras usually are dominated by Triatriopollenites plicoides and T. confusus. The species Anacolosidites subtrudens,Aquilapollenites proceros,A. spinulosus have last occurrence in the Danian. The K-T (K-Pg) boundary in the terrestrial deposits is defined in the base of the Upper Tsagayan Subformation and the base of the lower part of the Wuyun Formation. The latter is represented by aleuropelite to fine-grained sandstones. The change of taxonomical composition of palynospectra in similar environments could be determined by real change of flora at the Mesozoic and Cenozoic boundary,but not by changes of lithological facies or depositional environment,generally.

关键词： palynoflore Cretaceous Paleogene boundary Zeya-Bureya Basin

Electroextraction of neodymium from LiCl-KCl melt using binary liquid Ga-Al cathode

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Journal of Rare Earths 2023年第8期41卷 1250-1257,I0005页

作者： Li Ding Xuepeng Wang Yongde Yan Valeri Smolenski Wenda Xu Alena Novoselova Yun Xue Fuqiu Ma Xingmei Zhang Key Laboratory of Superlight Materials and Surface Technology Ministry of EducationCollege of Materials Science and Chemical EngineeringHarbin Engineering UniversityHarbin 150001China Yantai Research Institute of Harbin Engineering University Yantai 264006China Institute of High-Temperature Electrochemistry UB ras Ekaterinburg 620990Russia Department of Rare Metals and Nanomaterials Institute of Physics and TechnologyUral Federal UniversityEkaterinburg 620990Russia Yantai Standard Metrology Inspection&Test Center National Steam Flowrate Measurement StationYantai 264000China

The electrochemical behaviour of Nd(Ⅲ)ion was investigated on inert W,active Ga and Ga-AI *** is established that the reduction of Nd(Ⅲ)ion on the inert electrode is a consecutive two-step process while that on the active electrodes is a one-step *** apparent standard potential of the Nd(Ⅲ)/Nd redox couple at different temperatures was determined by open-circuit chronopotentiometry and semi-differential method,and the relationship between temperature and apparent standard potential was further *** thermodynamic properties of Nd in Ga and Ga-Al electrodes such as activity coefficient and activity were evaluated via intermittent coulomb titration and temperature dependence test,and the effect of temperature on activity coefficient was ***,Nd was successfully extracted in form of alloy from molten salt by galvanostatic electrolysis,in which the current efficiency of91.7%for the electroextraction indicates that the binary liquid Ga-Al electrode has favorable performance.

关键词： Rareearths Electroextraction Spent nuclear fuel Pyrochemical processing Lanthanides Binary liquid cathode

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急流异常可能是M>6.0地震的短期前兆

国际地震动态 2016年第7期37卷 12-20页

作者： Hong-Chun Wu Ivan N Tikhonov 郑吉盎章菲 Institute of Occupational Safety and Health Safety Department Institute of Marine Geology and Geophysics FEB RAS 北京工业大学

热图像的卫星数据揭示了与地壳断层大线性结构和系统相关的热场的存在。所测量的长波辐射高度正好落在急流区间内。本工作描述了两个区域范围内强震和急流之间可能存在的联系。在2006~2010年强震（M〉6.0）震中附近,气流的前端或尾端位... 详细信息

热图像的卫星数据揭示了与地壳断层大线性结构和系统相关的热场的存在。所测量的长波辐射高度正好落在急流区间内。本工作描述了两个区域范围内强震和急流之间可能存在的联系。在2006~2010年强震（M〉6.0）震中附近,气流的前端或尾端位置能在震中附近保持6个小时甚至更久。在一张6小时气象图上有93.6%的几率可以观测到稳定的急流,而在两张邻接的气象图上看到这种变化的几率是26.7%。震中和急流位置分布的中位数为36.5km。能实现预测的累积概率估算值如下：10天为24.2%,20天为48.4%,30天为66.1%,40天为87.1%,50天为93.5%,70天为100%。观测到的前兆效应可能会引起地震实际短临预报应用者的极大兴趣。

关键词：地震震中急流前兆异常

The influence of low voltage discharges on structure and phase transformations of metallic foils

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广东有色金属学报 2005年第2期15卷 495-495页

作者： Pyachin S.A. Verkhoturov A.D. Zavodinsky V.G. Pugachevsky M.A. Institute for Materials Science KSC FEB RAS Khabarovsk 680042 Russian

A low voltage electrospark processing of materials allows one to modify the chemical composition and structure of metal layers due to thermo-mechanical influence of discharges and transfer of materials from one electr... 详细信息

关键词：电压金属薄片化学成分相变化

Characteristics of the active-layer under the China-Russia Crude Oil pipeline

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Journal of Mountain Science 2021年第2期18卷 323-337页

作者： SERBAN Mihaela LI Guo-yu SERBAN Raul-David WANG Fei FEDOROV Alexander VERA Samsonova CAO Ya-peng CHEN Peng-chao WANG Wei State Key Laboratory of Frozen Soils Engineering Northwest Institute of Eco-Environment and ResourcesChinese Academy of SciencesLanzhou 730000China Da Xing’anling Observation and Research station of Frozen-Ground Engineering and Environment Northwest Institute of Eco-Environment and ResourcesChinese Academy of SciencesJiagedaqi 165000China University of Chinese Academy of Sciences Beijing 100049China Melnikov Permafrost Institute SB RASYakutsk 677010Russia PetroChina Pipeline Company Langfang 065000China Jiagedaqi Oil and Gas Transmission Sub-company PetroChina Pipeline CompanyJiagedaqi 165000China

Active layer is a key component for permafrost environment studies as many subsurface biological,biogeochemical,ecological,and pedogenic activities prevail in this *** study focuses on active layer temperature monitoring in an area with sporadic permafrost at two adjacent sites along China-Russia Crude Oil Pipeline(CRCOP),NorthEast *** T1 is located in disturbed ground on the right-of-way(on-ROW)2 m away from the center of the oil pipeline.T2 is located in a natural and undisturbed site,around 16.6 m *** objective was to study seasonal variability of the active layer depth and thermal regime from October 2017 to September *** monitoring sites consist of soil temperature probes arranged in a vertical array at different depths at both *** following parameters were computed:number of isothermal days(ID),freezing days(FD),thawing days(TD),freezing degree days(FDD),thawing degree days(TDD),number of freeze-thaw days(FTD).The mean air temperature in the monitoring period reached-3.2℃.The temperature profile indicates that the maximum active layer thickness observed during the study period was 10 m at T1 and 2 m at *** majority of the soil temperatures were above or close to 0℃,resulting in great values of TDD,especially in the first 4 m *** for T1 were predominant and ranged between 600-1160℃·days(0-4 m depth)reflecting the influence of oil temperature from the *** T2 borehole FDD were predominant for all the soil layer depths resulting in less permafrost *** comparison emphasizes the significant influence of vegetation removal and the dispersed heat from the pipeline on the active layer thickness.

关键词： Soil thermal regime Permafrost China Russia Crude Oil Pipeline Active layer

The first occurrence of Troodon-morphotype tooth in Jiayin,Heilongjiang,Northeast China

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Global Geology 2022年第3期25卷 133-145页

作者： YU Kaifeng WU Wenhao Ivan Bolotsky ZHANG Xin SHEN Fengbin Pascal Godefroit College of Earth Sciences Jilin UniversityChangchun 130061China Research Centre of Palaeontology and Stratigraphy Jilin UniversityChangchun 130026China Institute of Geology and Nature Management FEB RASBlagoveschensk 675000Russia Jiayin Dinosaur National Geopark Jiayin 153200China Directorate Earth and History of Life Royal Belgian Institute of Natural Sciences1000 BrusselsBelgium

Abundant dinosaur remains have been discovered from the Heilongjiang/Amur area for over one hundred *** these discoveries,an isolated small theropod tooth recently found from the lower part of the Yuliangzi Formation of Jiayin displays highly distinctive morphological *** can be identified as a Troodon-morphotype tooth based on mesiodistal constriction at the base of the crown and large,hook-like denticles extending the entire length of both ***,Troodon remains were mainly found in North *** isolated Troodon teeth were also discovered in Blagoveschensk and Kundur localities on the left bank of the Heilongjiang *** specimen represents the first occurrence of Troodon-morphotype tooth in Jiayin,Heilongjiang,Northeast *** presence of this taxon in Jiayin,Blagoveschensk and Kundur localities in the Heilongjiang area provides new evidence for faunal exchange between North America and Asia through Cretaceous Beringia.

关键词： Heilongjiang Yuliangzi Formation Theropoda Troodon Maastrichtian

Transcript profiling of a novel plant meristem,the monocot cambium

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Journal of Integrative Plant Biology 2017年第6期59卷 436-449页

作者： Matthew Zinkgraf Suzanne Gerttula Andrew Groover US Forest Service Pacific Southwest Research StationDavisCaliforniaUSA Department of Computer Science University of CaliforniaDavisUSA Department of Plant Biology University of CaliforniaDavisUSA

While monocots lack the ability to produce a vascular cambium or woody growth, some monocot lineages evolved a novel lateral meristem, the monocot cambium, which supports secondary radial growth of stems. In contrast to the vascular cambium found in woody angiosperm and gymnosperm species, the monocot cambium produces secondary vascular bundles, which have an amphivasal organization of tracheids encircling a central strand of phloem. Currently there is no information concerning the molecular genetic basis of the develop- ment or evolution of the monocot cambium. Here we report high-quality transcriptomes for monocot cambium and early derivative tissues in two monocot genera, Yucca and Cordyline. Monocot cambium transcript profiles were compared to those of vascular cambia and secondary xylem tissues of two forest tree species, Populus trichocarpa and Eucalyptus grandis. Monocot cambium transcript levels showed that there are extensive overlaps between the regulation of monocot cambia and vascular cambia. Candidate regulatory genes that vary between the monocot and vascular cambia were also identified, and included members of the KANADI and CLE families involved in polarity and cell-cell signaling, respectively. We suggest that the monocot cambium may have evolved in part through reactivation of genetic mechanisms involved in vascular cambium regulation.

关键词： Chun-Ming Liu, Institute of Crop Science, CAAS, ChinaReceived feb. 18, 2017 Accepted Mar. 15, 2017 Online on Mar. 17,2017

Late Cretaceous biota and the Cretaceous-Paleogene(K--Pg)Boundary in Jiayin of Heilongjiang,China

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Global Geology 2011年第3期14卷 115-143页

作者： Sun G. Akhmetiev M. Markevich V. Ashraf A. R. Bugdaeva E. Godefroit P. Bolotsky Yu. Dong Z. M. Golovneva L. Yang H. X. Sun C. L. Sun Y. W. Quan C. Kodrul T. Kezina T. Johnson K. Nishida H Dilcher D. L. Harding I. Chen Y. J. Key-Lab for Evolution of Past Life MOEC(Jilin University) Changchun 130026 China College of Paleontology Shenyang Normal University Shenyang 110034 China Geological Institute of ras Moscow 109017 Russia Institute of Biology and Soil Science FEB RAS Vladivostok 690022 Russia Institute of Geosciences University of Tuebingen Tuebingen 72074 Germany Royal Belgian Institute of Natural Sciences Dept. of Palaeontology B -1000 Bruxelles Belgium Amur Natural History Museum IGNE FEB RAS Blagoveschensk 675000 Russia IVPP Beijing 100044 China Research Center of Paleontology ＆ Stratigraphy Jilin University Changchun 130026 China Komarov Botanical Institute RAS St. -Petersburg 197376 Russia College of Geoexploration Science ＆ Technology Jilin University Changchun 130026 China Amur State University Blagoveshensk 675000 Russia Denver Museum o.f Natural Sciences Denver C0-90205 USA Chuo University Tokyo 112 Japan Indiana University Bloomington IN 47405 USA School of Ocean ＆ Geosciences University of Southampton Southampton S014 3ZH UK

An international cooperative study of the Late Cretaceous biota and non-marine strata including the Cretaceous-Paleogene(K--Pg) boundary in Jiayin near the Heilongjiang River,China during 2002-2010,is summarized in this paper. The strata includes the Upper Cretaceous Yong'ancun-,Taipinglinchang-,Yuliang-zi-,and Furao formations,and the Paleocence Wuyun Formation consisting of Baoshantou Member and a Coalbearing Member. Seven palynological assemblages from Santonian to Paleocene are recognized,which is used for definition of the K--Pg boundary. Through the palynological analysis of three drilled boreholes (XHY-2005,2006,2008) in Xiaoheyan of western Jiayin,the K--Pg boundary is defined within 20. 00-20. 05 m in the borehole XHY-2006 (as a standard boundary) which is just between the top of Furao Formation (late Maasterichtian) and the base of Baishantou Member (early Danian) . These new research results are supported by paleo- magnetic,geochemical and other analyses,also. On the other hand,the presence of eight taxa of Maasterichtian dinosaurs (mostly hadrosaurids) have been recognized by the authors; and two mega-plant assemblages from the Yong'ancun Fm (Santonian) to Taipinglinchang Fm (Campanian) are confirmed. These research a-chievements indicate that the Upper Cretaceous-Paleocene in Jiayin can be well correlated to the strata in the neighboring Zeya-Bureja basin,Russia. The K--Pg boundary definited in Jiayin is the first well documented non-marine K--Pg boundary in China. Also the related paleoclimate,paleoenvironment and the mass extinctions in this area during the Cretaceous-Paleocene transition are also discussed.

关键词： Biota Late Cretaceous Paleogene K-Pg boundary Heilongjiang River, Jiayin