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胶质芽胞杆菌对磷矿石风化作用时细菌蛋白质的双向电泳分析

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微生物学通报 2009年第3期36卷 334-338页

作者：谌书刘从强连宾中国科学院地球化学研究所环境地球化学国家重点实验室贵州贵阳550002 西南科技大学固体废物处理与资源化省部共建教育部重点实验室四川绵阳621010

本文研究对磷矿石有风化作用的胶质芽胞杆菌(Bacillus muscilaginosus)在风化磷矿石过程中菌体蛋白质组的变化及差异,以此了解该风化作用的分子生物学机制。将该菌接入液体培养基中,加磷矿粉为处理组,不加磷矿粉为对照组,静置培养。培养... 详细信息

本文研究对磷矿石有风化作用的胶质芽胞杆菌(Bacillus muscilaginosus)在风化磷矿石过程中菌体蛋白质组的变化及差异,以此了解该风化作用的分子生物学机制。将该菌接入液体培养基中,加磷矿粉为处理组,不加磷矿粉为对照组,静置培养。培养1.d后,取上清液离心后的固体物和部分上清液中的外分泌蛋白用作菌体蛋白质组学分析。菌体蛋白质组二维电泳图谱进行比较和软件分析后,处理组可见蛋白点数为(1.34±98)个,对照组可见蛋白点数为(72.±53)个,两者比较具有统计学差异(P2.4个蛋白点表达上调,75个蛋白点表达下调,2.7个蛋白质点为新合成。细菌对磷矿石风化作用时激活了某些蛋白的表达,新合成、表达量增加和表达量下降的蛋白质点与细胞的代谢调控、细胞激活、增生、分化和信号转导通路等有关;揭示了该菌受矿粉的影响及其适应环境的分子生物学机制。

关键词：胶质芽胞杆菌磷矿石微生物风化蛋白质组

Sm-Nd isotopic geochronologyof the Yinachang Fe-Cu-REE deposit at Wuding, Yunnan Province and its genetic significance

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Science Bulletin 2005年第18期 124-130页

作者： YANG Yaomin1,2.3, TU Guanzhi1, HU Ruizhong1 & SHI Xuefa2.1. institute of geochemistry, chinese {2. of Sciences, guiyang 550002. china 2. The key laboratory of Marine Sedimentology and environmental Geology, The First institute of Oceanography, SOA, Qingdao 2.6061, china 3. Northwest Geological Exploration Bureau, CNNC, Xi’an 710054, china

Sm-Nd isotope systematics of ores and fluorites places precise time constraints on REE mineralization of the Yinachang Fe-Cu-REE deposit in Yunnan Province which occur in the Proterozoic Kunyan group. The ore-related fluorites contain high abundant REE, and show a strong enrichment of LREE and a positive Eu anomaly, which is in marked contrast to post-ore fluorites that are HREE en-riched. The Sm-Nd isochron ages of the ores and fluorites are 1.39±40 Ma and 1.1.±1.0 Ma, respectively, and calculated εNd(t) are ?4.6 and ?3.2. Accurate age determinations of the mineralization demonstrate that the REE mineralization took place during early Mesoproterozoic. Together with other geological evidence from the ore deposit, the primary REE-bearing ore-forming fluids are suggested to have been derived from the Enriched Mantle, and the Yinachang Fe-Cu-REE ore deposit is of volcanic exhalation- hydro-thermal sedimentary origin. This study also imply that the sudden large-scale REE mineralization in the Mesoprotero-zoic epoch may have been induced by alkaline-rich anoro-genic magmatism which occurred at marginal rifts of the continent in the Mesoproterozoic.

关键词： Kunyang rift Yinachang Fe-Cu-REE deposit fluorite Sm-Nd isotopic systematics Mesoproterozoic.

Development of hydrogen energy and environment

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Acta Geochimica 2006年第S1期 121-122页

作者： Mengkui TIAN1,2.3, Wenfeng SHANGGUAN1, Shijie WANG2. Ziyuan OUYANG2. Research Center for Combustion and Environment Technology, Shanghai Jiaotong University, Shanghai 2.0030, china 2.state {2. laboratory of environmental geochemistry, institute of geochemistry, chinese academy of Sciences. guiyang 550002. china 3 Graduate School of chinese academy of Sciences, Beijing 100047, china

Enrichment and mobility of cadmium and other heavy metals in the area of the Three-Gorges Reservoir

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Acta Geochimica 2006年第S1期 122-123页

作者： Jiang TANG1, Yong LI2. Jiali LEI3, Shijie WANG1, Tangfu XIAO1 1 state key {2. of environmental geochemistry, institute of geochemistry, chinese academy of Science, guiyang 550002. china 2.institute of Earth Science, Chengdu University of Technology, Chengdu 610059, china 3 Geological Survey of Southeast Sichuan, Chongqing 400033, china

Bulk chemical composition of lherzolitic shergottite Grove Mountains 9902.—Constraints on the mantle of Mars

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Bulk chemical composition of lherzolitic shergottite Grove M...

Spatial and temporal distributions of mercury species and controlling factors in Hongfeng Reservoir, Guizhou, china

中国科学院地质与地球物理研究所2.08学术年会

作者： Yangtmg LIN~(1*),Liang QI~2.Guiqm WANG~3,and Lin XU~4 1 key laboratory of the Earth’s Deep Interior,{2. of Geology and Geophysics,chinese academy of Sciences,Beijing 10002.,china 2.state key Lab of Ore Deposit geochemistry,{2. of geochemistry,chinese academy of Sciences,guiyang 550002.china 3 Guangzhou institute of geochemistry,chinese academy of Sciences,Guangzhou,china 4 National Astronomic Observatory,chinese academy of Sciences,Beijing,china

We report the concentration of 50 elements,including rare earth elements(REEs) and platinum group elements(PGEs) in bulk samples of the Grove Mountains(GRV) 9902. lherzolitic *** abundances of REEs are distinctly lower than those of Allan Hills(ALH) A77005 and other lherzolitic shergottites,indicating that GRV 9902. is not paired with *** may,nevertheless, sample the same igneous unit as the others(Lin et al.2.05b;Wang and Chen 2.06).The CI-normalized elemental pattern of GRV 9902. reveals low(0.004-0.008×CI) and unfractionated PGEs (except for Pd of 0.01.×CI) without depletion of W or Ga relative to lithophile element trends. Fractionation between siderophile and lithophile elements become less pronounced with increase of volatility,except for high abundances of Ni and *** characteristics are probably representative of the mantle of Mars,which is consistent with previous work that the Martian mantle formed in a deep magma ocean followed by a later accretion of chondritic materials.

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Acta Geochimica 2006年第S1期 147-148页

作者： Tianrong HE1. Xinbin FENG1. Guangle QIU1. Weiyang BAI1. Zhonggen LI1. Julia LU2.1.{1. key {2. of environmental geochemistry, institute of geochemistry, chinese academy of Science, guiyang 550002. china 2.Department of Chemistry and Biology, Ryerson University, 350 Victoria St., Toronto, ON, Canada

The Tongde Picritic Dikes in the Western Yangtze Block:Evidence for Ca.800-Ma Mantle Plume Magmatism in South china during the Breakup of Rodinia

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The Tongde Picritic Dikes in the Western Yangtze Block:Evide...

岩溶生态系统土壤及表生植被某些特性变异与石漠化的相关性

中国科学院地质与地球物理研究所第十届(2.1.年度)学术年会

作者： Xian-Hua Li,Wei-Guang Zhu,~(1,2) Hong Zhong,~1 Xuan-Ce Wang, De-Feng He,~1 Zhong-Jie Bai,~1 and Feng Liu~3 state key laboratory of Lithospheric Evolution,institute of Geology and Geophysics,chinese academy of Sciences,Beijing 100029,china. 1 state key laboratory of Ore Deposit geochemistry,institute of geochemistry,chinese academy of Sciences,guiyang 550002.china. 2 key laboratory of Isotope Geochronology and geochemistry, Guangzhou institute of geochemistry,chinese academy of Sciences,Guangzhou 510640,china. 3 Chengdu University of Technology,Chengdu 610059, china.

Secondary ion mass spectroscopy U-Pb zircon ages and mineralogical,geochemical,and Nd isotopic data are reported for the Tongde picritic dikes in the Yanbian area of the western Yangtze Block,South *** pi critic dikes,which intruded in the ca.82.-Ma Tongde complex,are dated at 796±5 *** of the picritic rocks are highly porphyritic (ca.1.-35 vol%phenocrysts)with dominant olivine(Fo=82.92.phenocrysts that are high in CaO(up to 0.43 wt%), CrO,and *** the studied rocks are high-Ti and alkaline in composition and exhibit light rare earth element-enriched and"humped"incompatible trace-element patterns,similar to the alkaline basalts within the ocean islands and continental *** highε(T)values between +6.9 and +8.7 indicate that these rocks were derived from an asthenospheric mantle source with inappreciable crustal *** modeling suggests a primary melt of 2..7%MgO for batch melting and 2..4%MgO for fractional *** high MgO content in the modeled primary magmas implies a minimum melt temperature of>1.00℃and a mantle potential temperature of 1.00°- 1.2.℃.The Tongde picritic dikes were therefore generated by melting of an anomalously hot mantle source with a potential temperature ca.2.0℃higher than that of the ambient mid-ocean ridge basalt-source mantle,similar to that of modern mantle ***,the Tongde picritic dikes provide solid petrological evidence for the proposed Neoproterozoic mantle plume that led to the breakup of the supercontinent Rodinia.

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土壤学报 2004年第2期41卷 196-202页

作者：李阳兵谢德体魏朝富中国科学院地球化学研究所环境地球化学国家重点实验室贵阳550002 西南农业大学资源环境学院重庆400716

岩溶山地石漠化是一种与脆弱生态地质背景和人类活动相关联的土地退化过程。本文以重庆市典型岩溶山地为例 ,探讨了岩溶生态系统土地利用方式与土壤机械组成、土壤水稳性团聚体、土壤有机质、土壤种子库、植被类型的关系。结果表明 ,经... 详细信息

岩溶山地石漠化是一种与脆弱生态地质背景和人类活动相关联的土地退化过程。本文以重庆市典型岩溶山地为例 ,探讨了岩溶生态系统土地利用方式与土壤机械组成、土壤水稳性团聚体、土壤有机质、土壤种子库、植被类型的关系。结果表明 ,经开垦利用后 ,岩溶环境土壤表层砂化现象更加明显。土地利用强度越大 ,对土壤团粒结构的破坏也越大 ,林地、灌草坡对水分的保持能力强 ,土地利用强度较大的土壤保水能力相对较弱 ,土壤有机质受土地利用强度的明显影响。土地利用强度越大 ,木本植物种子越少 ,草本植物种子越多 ,且以农田杂草为主。土地利用方式的变化 (如陡坡开垦 )是对次生植被及其种子库的主要威胁。

关键词：岩溶生态系统土壤表生植被石漠化土地退化土地利用方式土壤种子库

Dynamic Magma Conduit System Related to the Jinchuan Ni-Cu Sulfide Deposit,NW china

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矿物学报 2009年第S1期29卷 82-82页

作者： SONG Xie-yan1,CHEN Lie-meng1,TIAN Yu-long2.XIAO Jia-fei1(1. state key {2. of Ore Deposit geochemistry,institute of geochemistry,chinese academy of Sciences,guiyang,550002.china 2. Jinchuan Group Lid,Jinchang,Gansu,737100,china)

The Jinchuan Ni-Cu sulfide deposits,NW china,are hosted in small ultramafic intrusions that were emplaced into Paleoproterozoic metamorphic rocks. The ultramafic intrusions were previously thought to be the segments of a single elongate intrusion that was dismembered by late faults into eastern and western portions,each of which have distinct stratigraphic sequences.

关键词： Dynamic Magma Conduit System Related to the Jinchuan Ni-Cu Sulfide Deposit,NW china Ni Cu