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  • The Moon
  • 从月亮的最近的 geochemical 和地球物理的数据关于月亮的起源,结构和体积作文启用更早的解释的修订。土和月亮在他们的同位素的作文之中显示出许多类似,但是他们以完全不一样的方法演变,可能与在象在尺寸和内部压力的广阔差别一样的月亮的水和不稳定的元素的缺乏有关。从象不稳定的弄空那样的地球的一些全球 geochemical 差别基于 K/U 比率被建立了。然而,所有当前的月亮的样品来自区分的区域,使更依赖体积的一篇体积作文的建立成为地球物理的性质或同位素的类似;后者怎么产生了,仍然保持不清楚或联系到整个月亮作文。当不稳定的元素的存在可以把更低的限制放在 proto 月亮的温度上时,在倔强、超级倔强的元素之中的分别效果的缺乏显示 proto 月亮的材料似乎不大可能被蒸发了。影响身体的 geochemical 证据的明显的缺乏启用另外的可能的 impactors,例如彗星,到被考虑。尽管月亮的起源仍然保持当前未知,月亮在地球上作为巨大的影响的结果发源,这通常被相信。
  • The Taylor Moon
  • <正>The formation of the Moon remains obscure after*400 years since Galileo saw that the Moon was mountainous in 1609.The current hypothesis is that the Moon formed through a low-angle collision between the Earth and Mar-size impactor,which is known as the Giant Impact model(e.g.Benz et al.1989).The giant impact should be sufficiently
  • Equilibrium and kinetic Si isotope fractionation factors and their implications for Si isotope distributions in the Earth's surface environments
  • Several important equilibrium Si isotope fractionation factors among minerals,organic molecules and the H4SiO4 solution are complemented to facilitate the explanation of the distributions of Si isotopes in Earth’s surface environments.The results reveal that,in comparison to aqueous H4SiO4,heavy Si isotopes will be significantly enriched in secondary silicate minerals.On the contrary,quadra-coordinated organosilicon complexes are enriched in light silicon isotope relative to the solution.The extent of 28Si-enrichment in hyper-coordinated organosilicon complexes was found to be the largest.In addition,the large kinetic isotope effect associated with the polymerization of monosilicic acid and dimer was calculated,and the results support the previous statement that highly 28Sienrichment in the formation of amorphous quartz precursor contributes to the discrepancy between theoretical calculations and field observations.With the equilibrium Si isotope fractionation factors provided here,Si isotope distributions in many of Earth’s surface systems can be explained.For example,the change of bulk soil δ30Si can be predicted as a concave pattern with respect to the weathering degree,with the minimum value where allophane completely dissolves and the total amount of sesquioxides and poorly crystalline minerals reaches their maximum.When,under equilibrium conditions,the well-crystallized clays start to precipitate from the pore solutions,the bulk soil δ30Si will increase again and reach a constant value.Similarly,the precipitation of crystalline smectite and the dissolution of poorly crystalline kaolinite may explain the δ30Si variations in the ground water profile.The equilibrium Si isotope fractionations among the quadracoordinated organosilicon complexes and the H4SiO4solution may also shed light on the Si isotope distributions in the Si-accumulating plants.
  • Study of oxygen fugacity during magma evolution and ore genesis in the Hongge mafic–ultramafic intrusion, the Panxi region, SW China
  • 在 Hongge 侵入的中间、上面的部分作为巨大的层发生的 FeTi 氧化物的经济集中在 Emeishan 大火的省与另外的分层的侵入(Panzhihua 和 Baima ) 不同, SW 中国。这份报纸在磁铁矿和钛铁矿的新矿物质作文上报导为选择为暗岩堆积岩石和 clinopyroxene 和斜长石。我们使用这些数据估计父母岩浆并且在矿石形成期间的氧化国家抑制导致涉及 Hongge 分层的侵入的 FeTi 氧化物的丰富的累积的因素。结果证明父母岩浆的氧易逃逸在到 FMQ+0.14 的 FMQ1.56 的范围,并且氧易逃逸在更低的橄榄石 clinopyroxenite 地区( LOZ )和侵入分别地在到 FMQ0.2 和 FMQ0.49 的 FMQ1.29 的范围到 FMQ+0.82 的 Hongge 的中间的 clinopyroxenite 地区( MCZ )在 FeTi 氧化物的矿石形成期间定位了。MELTS 模型表明那,作为易逃逸从 FMQ1 增加到 FMQ+1 的氧,结晶化磁铁矿的比例从 11 增加?%?到 16 ?%和 FeTi 氧化物的结晶化温度从 1134~1164 进展?猯'T匾佩猼扵????猠汯瑵潩?慭?污潳猠敨?楬桧?湯琠敨匠?獩瑯灯?楤瑳楲畢楴湯?湩琠敨匠? 捡畣畭慬楴杮瀠慬瑮s
  • Determination of rhenium and osmium by ICP-MS for galena and sphalerite
  • 有在一个 Carius 试管和有阴离子交换树脂的 Re 的分离的水 regia 的消化通常为辉钼矿和黄铁矿标明日期的 ReOs 被采用。然而,当这个平淡的阴离子交换方法被用于方铅矿时, Re 的恢复是极其低的,引起在方铅矿标明日期的 ReOs 的困难。在这研究,我们在样品准备期间调查了 Re 损失的机制并且为方铅矿和闪锌矿标明日期的 ReOs 测试了一个修订过程。
  • Oil-source correlation of Lower-Triassic oil seepages in Ni'erguan village, Southern Guizhou Depression, China
  • There are abundant bitumens and oil seepages stored in vugs in a Lower-Triassic Daye formation(T1d)marlite in Ni’erguan village in the Southern Guizhou Depression. However, the source of those oil seepages has not been determined to date. Multiple suites of source rocks of different ages exist in the depression. Both the oil seepages and potential source rocks have undergone complicated secondary alterations, which have added to the difficulty of an oil-source correlation. For example, the main source rock, a Lower-Cambrian Niutitang Formation"(∈1n) mudstone, is over mature, and other potential source rocks, both from the Permian and the Triassic, are still in the oil window. In addition, the T1d oil seepages underwent a large amount of biodegradation. To minimize the influence of biodegradation and thermal maturation, special methods were employed in this oil-source correlation study. These methods included catalytic hydropyrolysis, to release covalently bound biomarkers from the over mature"kerogen of ∈1n mudstone, sequential extraction, to obtain chloroform bitumen A and chloroform bitumen C from the T1d marlite, and anhydrous pyrolysis, to release pyrolysates from the kerogen of T1d marlite. Using the methods above, the biomarkers and n-alkanes releasedfrom the oil samples and source rocks were analysed by GC–MS and GC-C-IRMS. The oil-source correlation indicated that the T1d oil seepage primarily originated from"the ∈1n mudstone and was partially mixed with oil generated from the T1d marlite. Furthermore, the seepage also demonstrated that the above methods were effective for the complicated oil-source correlation in the Southern Guizhou Depression.
  • The influence of three mangrove species on the distribution of inorganic nitrogen and phosphorus in the Quanzhou Bay estuarine wetland soils
  • 这研究试图在无机的氮和磷的分发上调查区域和三地区性的统治红树属植物种(Avicennia 系船池, Aegiceras corniculatum 和 Kandelia candel ) 的效果。无机的氮和磷和酶的活动的测量在三红树属植物种在 Quanzhou 海湾河口沼泽地盖住的土壤被执行,在中国的一块典型沿海的沼泽地。种类与一更高的生物资源在在上游并且中流从可得到的磷的土壤,和保留专心于更多的氮不同区域原因的土壤磷的地区性的变化。由 A 在区域统治了。系船池,当可得到的磷更高时,硝酸盐氮更低。同时,硝酸盐氮和可得到的磷在 K 盖住的土壤是更高的。candel。而且,所有三种影响元素并且 enzymic stoichiometry。红树属植物种类影响差异元素并且通过微分微型环境的 enzymic stoichiometric 关系,它导致沼泽地生态系统的生物多样性。因此,这研究可以便于氮和磷的红树属植物的转变能力的更好的理解并且将因此为为河口沼泽地的生态的恢复提供一个基础有益。
  • Numerical simulation of groundwater under complex karst conditions and the prediction of roadway gushing in a coal mine:a case study in the Guang'an Longtan Reservoir in Sichuan Province, China
  • Numerical simulation of groundwater in karst areas has long been restricted by the difficulty of generalizing the hydrogeological conditions of reservoirs and of determining the relevant parameters due to the anisotropy and discontinuity of the karst water-bearing media in these areas. In this study, we used the Guang’an Longtan Coal mine in Sichuan as an example, and generalized the complex hydrogeological conditions in the reservoir area. A finite element numerical flow model was used to simulate current and future scenarios of roadway gushing at the bottom of the coal mine at pile number 1 + 700 m. The results show that the roadway section corresponding to valleys has a gushing quantity of 4323.8–4551.25 m~3/d before impoundment. Modeled water inflow after impoundment increased to 1.6 times the water inflow before impoundment, which threatens the impoundment as well as the roadway’s normal operation. Therefore, roadway processing measures are needed to guarantee the safety of the impoundment and of the mining operation.
  • Characteristics and distributions of humic acids in two soil profiles of the southwest China Karst area
  • 腐殖的酸的特征和分布(哈) 并且在黄土壤侧面和西南中国石灰岩地区常见的地形区域的石灰石土壤侧面的土壤有机物(SOM ) 系统地被调查在学习区域的不同土壤揭示他们的进化。结果证明沿着二的 SOM 的特征和分发玷污侧面是尤其是不同的。土壤样品的全部的器官的碳(TOC ) 内容就沿着黄土壤侧面沿着石灰石土壤侧面,但是严厉地稍微减少了。石灰石土壤的 TOC 比相应黄土壤的那些显著地高,并且 SOM 的 C/N 比率显示出一个类似的变化趋势到 TOC 的,显示那 SOM 能更好比的在石灰石土壤被保存在黄土壤。土壤腐殖的酸用尽一切地被提取并且用 ultrafiltration 技术根据他们的明显的分子的重量推进 fractionated 探索内在的保存机制。结果显示出那 C/N 比率从不同石灰石土壤层有是相对稳定的并且那大分子哈部分支配了最高的土壤的体积 HA,显示那哈当简历和化学降级被延迟时,在石灰石,侧面被保护。与器官的元素内容和二土壤的矿物质内容结合了,我们断定在石灰石土壤的高钙内容可以由形成 complexation 混合物与在 SOM 保存起一个关键作用或 / 并且与 hypergene CaCO 3降水围住 SOM。
  • Organic matter enrichment in the first member of the Xiagou formation of the lower Cretaceous in the Jiuquan Basin, China
  • 在在 Xiagou 形成的第一个成员的一个沉积核心的有机物的来源和丰富(K 1 从 Jiuquan 盆的 Chang 2-2 地上凿穿的 g 1) , NW 中国,用 RockEval, maceral,碳同位素和 biomarker 数据被检验了。这个数据显示响应气候的高度可变的有机物来源和保藏条件变化。TOC 内容,嗨,并且 13 C 价值强烈与许多 gammacerane,木质的有机物内容, steranes/hopanes 比率,和 C 29 sterane 内容被相关。这关联证明 depositional 环境和有机物的咸度的控制采购的重要性能在丰富,类型,和碳之上有有机物的同位素的作文。在 isotopically 光的丰富导致了盆相对高的温度和干旱气候,有水藻的高主要的生产率的高咸度湖,浮游生物,和细菌,和好有机物保藏调节的 Jiuquan (缺氧的底部水) 水藻细菌的有机物。在有相对低的温度和湿气候的 Jiuquan 盆区域,有水藻,浮游生物,和细菌的低主要生产率的新鲜的湖收到了重要源自陆地的高植物输入,导致低许多的免职同位素地更重的陆上的有机物。
  • Erratum to: Geochemical characteristics of Carboniferous volcanic rocks from the Wulungu-Luliang area, Junggar basin: constraints on magma source and tectonic setting
  • The Moon(Ross Taylor)
    The Taylor Moon(Wei-dong Sun[1,2])
    Equilibrium and kinetic Si isotope fractionation factors and their implications for Si isotope distributions in the Earth's surface environments(Hong-tao He[1,2];Siting Zhang;Chen Zhu;Yun Liu)
    Study of oxygen fugacity during magma evolution and ore genesis in the Hongge mafic–ultramafic intrusion, the Panxi region, SW China(Mingyang Liao[1,2];Yan Tao;Xieyan Song;Yubang Li[1,2];Feng Xiong[1,2])
    Determination of rhenium and osmium by ICP-MS for galena and sphalerite(Yingying Liu[1,2];Liang Qi;Jianfeng Gao;Zhilong Huang)
    Oil-source correlation of Lower-Triassic oil seepages in Ni'erguan village, Southern Guizhou Depression, China(Fang Yuan[1,2];Yuhong Liao;Yunxin Fang[1,3];Ansong Geng)
    The influence of three mangrove species on the distribution of inorganic nitrogen and phosphorus in the Quanzhou Bay estuarine wetland soils(Guiyao Zhou;Yanyou Wu;Deke Xing;Mingming Zhang;Rui Yu;Weiyi Qiao;Qaiser Javed)
    Numerical simulation of groundwater under complex karst conditions and the prediction of roadway gushing in a coal mine:a case study in the Guang'an Longtan Reservoir in Sichuan Province, China(Jiang Chengxin;Shi Huapeng;Li Ya;Yu Hongming)
    Characteristics and distributions of humic acids in two soil profiles of the southwest China Karst area(Liangang Ma[1,2];Baohua Xiao;Xinyue Di[1,2];Weilin Huang;Shijie Wang)
    Organic matter enrichment in the first member of the Xiagou formation of the lower Cretaceous in the Jiuquan Basin, China(Lixin Pei;Gang Gao;Wenzhe Gang;Zhilong Huang;Guofu Ma;Zhiming Yang;Jianjun Chen)
    Erratum to: Geochemical characteristics of Carboniferous volcanic rocks from the Wulungu-Luliang area, Junggar basin: constraints on magma source and tectonic setting(Wei Liu;Kuihua Zhang;Guanlong Zhang;Peiming Zhou;Qizhi Wang)
    《中国地球化学学报:英文版》封面

    主管单位:中国科学院出版图书情报委员会

    主办单位:中科院地球化学研究所

    社  长:徐仲伦

    主  编:欧阳自远

    地  址:贵阳市观水路73号中科院地球化学研究所

    邮政编码:550002

    电  话:6221345

    电子邮件:hzl@mail.gyig.ac.cn

    国际标准刊号:issn 1000-9426

    国内统一刊号:cn 52-1043/p

    邮发代号:2-577

    单  价:45.00

    定  价:180.00


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