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    题名 作者 年代 出处 被引量
1Developing plate tectonics theory from oceanic subduction zones to collisional orogens显示文摘Crustal subduction and continental collision is the core of plate tectonics theory. Understanding the formation and evolution of continental collision orogens is a key to develop the theory of plate tectonics. Different types of subduction zones have been categorized based on the nature of subducted crust. Two types of collisional orogens, i.e. arc-continent and continent-continent collisional orogens, have been recognized based on the nature of collisional blocks and the composition of derivative rocks. Arc-continent collisional orogens contain both ancient and juvenile crustal rocks, and reworking of those rocks at the post-collisional stage generates magmatic rocks with different geochemical compositions. If an orogen is built by collision between two relatively old continental blocks, post-collisional magmatic rocks are only derived from reworking of the old crustal rocks. Collisional orogens undergo reactivation and reworking at action of lithosphere extension, with inheritance not only in the tectonic regime but also in the geochemical compositions of reworked products(i.e., magmatic rocks). In order to unravel basic principles for the evolution of continental tectonics at the post-collisional stages, it is necessary to investigate the reworking of orogenic belts in the post-collisional regime, to recognize physicochemical differences in deep continental collision zones, and to understand petrogenetic links between the nature of subducted crust and post-collisional magmatic rocks. Afterwards we are in a position to build the systematics of continental tectonics and thus to develop the plate tectonics theory.ZHENG YongFei CHEN YiXiang DAI LiQun ZHAO ZiFu 2015Science China Earth Sciences2015,58,7:83
2Remelting of subducted continental lithosphere: Petrogenesis of Mesozoic magmatic rocks in the Dabie-Sulu orogenic belt显示文摘The Dabie-Sulu orogenic belt was formed by the Triassic continental collision between the South China Block and the North China Block. There is a large area of Mesozoic magmatic rocks along this orogenic belt, with emplacement ages mainly at Late Triassic, Late Jurassic and Early Cretaceous. The Late Triassic alkaline rocks and the Late Jurassic granitoids only crop out in the eastern part of the Sulu orogen, whereas the Early Cretaceous magmatic rocks occur as massive granitoids, sporadic intermedi- ate-mafic intrusive and volcanic rocks throughout the Dabie-Sulu orogenic belt. Despite the different ages for their emplacement, the Mesozoic magmatic rocks are all characterized not only by enrichment of LREE and LILE but depletion of HFSE, but also by high initial Sr isotope ratios, low εNd(t) values and low radiogeneic Pb isotope compositions. Some zircons from the Jurassic and Cretaceous granitoids contain inherited magmatic cores with Neoprotozoic and Triassic U-Pb ages. Most of the Cretaceous mafic rocks have zircon δ18O values and whole-rock δ13C values lower than those for the normal mantle. A systematic comparison with adjacent UHP metaigneous rocks shows that the Mesozoic granitoids and mafic rocks have elemental and isotopic features similar to the UHP metagranite and metabasite, respectively. This indicates that these magmatic and metamorphic rocks share the diagnostic features of lithospheric source that has tectonic affinity to the northern edge of the South China Block. Their precursors underwent the UHP metamorphism and the post-collisional anatexis, respectively at different times and depths. Therefore, the Mesozoic magmatic rocks were derived from anatexis of the subducted continental lithosphere itself beneath the collision-thickened orogen; the geodynamic mechanism of the post-collisional magmatisms is tectonic collapse of orogenic roots in response to lithospheric extension.ZHAO ZiFu ZHENG YongFei 2009Science China Earth Sciences2009,52,9:60
3Continental subduction channel processes: Plate interface interaction during continental collision显示文摘The study of subduction-zone processes is a key to development of the plate tectonic theory.Plate interface interaction is a basic mechanism for the mass and energy exchange between Earth’s surface and interior.By developing the subduction channel model into continental collision orogens,insights are provided into tectonic processes during continental subduction and its products.The continental crust,composed of felsic to mafic rocks,is detached at different depths from subducting continental lithosphere and then migrates into continental subduction channel.Part of the subcontinental lithospheric mantle wedge,composed of peridotite,is offscrapped from its bottom.The crustal and mantle fragments of different sizes are transported downwards and upwards inside subduction channels by the corner flow,resulting in varying extents of metamorphism,with heterogeneous deformation and local anatexis.All these metamorphic rocks can be viewed as tectonic melanges due to mechanical mixing of crust-and mantle-derived rocks in the subduction channels,resulting in different types of metamorphic rocks now exposed in the same orogens.The crust-mantle interaction in the continental subduction channel is realized by reaction of the overlying ancient subcontinental lithospheric mantle wedge peridotite with aqueous fluid and hydrous melt derived from partial melting of subducted continental basement granite and cover sediment.The nature of premetamorphic protoliths dictates the type of collisional orogens,the size of ultrahigh-pressure metamorphic terranes and the duration of ultrahigh-pressure metamorphism.ZHENG YongFei ZHAO ZiFu CHEN YiXiang 2013Chinese Science Bulletin2013,58,35:54
4Mesozoic mafic magmatism in North China:Implications for thinning and destruction of cratonic lithosphere显示文摘The North China Craton(NCC) has been thinned from >200 km to <100 km in its eastern part. The ancient subcontinental lithospheric mantle(SCLM) has been replaced by the juvenile SCLM in the Meoszoic. During this period, the NCC was destructed as indicated by extensive magmatism in the Early Cretaceous. While there is a consensus on the thinning and destruction of cratonic lithosphere in North China, it has been hotly debated about the mechanism of cartonic destruction.This study attempts to provide a resolution to current debates in the view of Mesozoic mafic magmatism in North China. We made a compilation of geochemical data available for Mesozoic mafic igneous rocks in the NCC. The results indicate that these mafic igneous rocks can be categorized into two series,manifesting a dramatic change in the nature of mantle sources at ~121 Ma. Mafic igneous rocks emplaced at this age start to show both oceanic island basalts(OIB)-like trace element distribution patterns and depleted to weakly enriched Sr-Nd isotope compositions. In contrast,mafic igneous rocks emplaced before and after this age exhibit both island arc basalts(IAB)-like trace element distribution patterrs and enriched Sr-Nd isotope compositions.This difference indicates a geochemical mutation in the SCLM of North China at^121 Ma. Although mafic magmatism also took place in the Late Triassic, it was related to exhumation of the deeply subducted South China continental crust because the subduction of Paleo-Pacific slab was not operated at that time. Paleo-Pacific slab started to subduct beneath the eastern margin of Eruasian continent since the Jurrasic. The subducting slab and its overlying SCLM wedge were coupled in the Jurassic, and slab dehydration resulted in hydration and weakening of the cratonic mantle. The mantle sources of ancient IAB-like mafic igneous rocks are a kind of ultramafic metasomatites that were generated by reaction of the cratonic mantle wedge peridotite notonly with aqueous solutions derived from dehydration of the subducting Paleo-Pacific oceanic crust in the Jurassic but also with hydrous melts derived from partial melting of the subducting South China continental crust in the Triassic. On the other hand, the mantle sources of juvenile OIB-like mafic igneous rocks are also a kind of ultramafic metasomatites that were generated by reaction of the asthenospheric mantle underneath the North China lithosphere with hydrous felsic melts derived from partial melting of the subducting Paleo-Pacific oceanic crust. The subducting Paleo-Pacific slab became rollback at^144 Ma. Afterwards the SCLM base was heated by laterally filled asthenospheric mantle, leading to thinning of the hydrated and weakened cratonic mantle. There was extensive bimodal magmatism at 130 to 120 Ma, marking intensive destruction of the cratonic lithosphere. Not only the ultramafic metasomatites in the lower part of the cratonic mantle wedge underwent partial melting to produce mafic igneous rocks showing negative ε_(Nd)(t) values, depletion in Nb and Ta but enrichment in Pb, but also the lower continent crust overlying the cratonic mantle wedge was heated for extensive felsic magmatism. At the same time, the rollback slab surface was heated by the laterally filled astheno spheric mantle, resulting in partial melting of the previously dehydrated rocks beyond rutile stability on the slab surface. This produce still hydrous felsic melts, which metasomatized the overlying astheno spheric mantle peridotite to generate the ultramafic metasomatites that show positive ε_(Nd)(t) values, no depletion or even enrichment in Nb and Ta but depletion in Pb. Partial melting of such metasomatites started at^121 Ma, giving rise to the mafic igneous rocks with juvenile OIB-like geochemical signatures. In this context, the age of ~121 Ma may terminate replacement of the ancient SCLM by the juvenile SCLM in North China. Paleo-Pacific slab was not subducted to the mantle transition zone in the Mesozoic as revealed by moder seismic tomography, and it was subducted at a low angle since the Jurassic, like the subduction of Nazca Plate beneath American continent. This flat subduction would not only chemically metasomatize the cratonic mantle but also physically erode the cratonic mantle. Therefore, the interaction between Paleo-Pacific slab and the cratonic mantle is the first-order geodynamic mechanism for the thinning and destruction of cratonic lithosphere in North China.Yongfei ZHENG Zheng XU Zifu ZHAO Liqun DAI 2018Science China Earth Sciences2018,61,4:47
5Two types of the crust-mantle interaction in continental subduction zones显示文摘Plate subduction is an important mechanism for exchanging the mass and energy between the mantle and the crust,and the igneous rocks in subduction zones are the important carriers for studying the recycling of crustal materials and the crust-mantle interaction.This study presents a review of geochronology and geochemistry for postcollisional mafic igneous rocks from the Hong’an-Dabie-Sulu orogens and the southeastern edge of the North China Block.The available results indicate two types of the crust-mantle interaction in the continental subduction zone,which are represented by two types of mafic igneous rocks with distinct geochemical compositions.The first type of rocks exhibit arc-like trace element distribution patterns(i.e.enrichment of LILE,LREE and Pb,but depletion of HFSE)and enriched radiogenic Sr-Nd isotope compositions,whereas the second type of rocks show OIB-like trace element distribution patterns(i.e.enrichment of LILE and LREE,but no depletion of HFSE)and depleted radiogenic Sr-Nd isotope compositions.Both of them have variable zircon O isotope compositions,which are different from those of the normal mantle zircon,and contain residual crustal zircons.These geochemical features indicate that the two types of mafic igneous rocks were originated from the different natures of mantle sources.The mantle source for the second type of rocks would be generated by reaction of the overlying juvenile lithospheric mantle with felsic melts originated from previously subducted oceanic crust,whereas the mantle source for the first type of rocks would be generated by reaction of the overlying ancient lithospheric mantle of the North China Block with felsic melts from subsequently subducted continental crust of the South China Block.Therefore,there exist two types of the crust-mantle interaction in the continental subduction zone,and the postcollisional mafic igneous rocks provide petrological and geochemical records of the slab-mantle interactions in continental collision orogens.ZHAO ZiFu DAI LiQun ZHENG YongFei 2015Science China Earth Sciences2015,58,8:17
6Oxygen isotope evidence for two-stage water-rock interactions of the Nianzishan A-type granite in NE China显示文摘The oxygen isotope ratios of whole-rock, common rock-forming minerals and zircon from Mesozoic A-type granitic pluton at Nianzishan in northeastern China were analyzed by the conventional BrF5 method and the laser-probe technique, respectively. Both whole-rock and rock-forming minerals show large δ18O variations up to 5.5‰ with significant oxygen isotope disequilibrium between zircon and the other minerals, whereas the δ18O values of zircon are tightly clustered between 3.12‰ and 4.19‰ and thus lower than the normal-mantle δ18O values. These results indicate that the Nianzishan A-type granite experienced two-stage water-rock interactions subsequentially. The remarkably low zircon δ18O values are genetically due to sea-water exchange with granite protolith in the first stage, and the oxygen isotope disequilibrium fractionations between zircon and rock-forming minerals are caused by mete-oric-hydrothermal alteration in the second stage. It is inferred that the 18O-depleted A-type granitic magmaWEI Chunsheng ZHENG Yongfei ZHAO Zifu J.W.Valley 2001Chinese Science Bulletin2001,46,9:6
7In situ U-Pb dating of xenotime by laser ablation (LA)-ICP-MS显示文摘Xenotime is an ideal mineral for U-Th-Pb isotopic dating because of its relatively high U and Th contents, but typically low concentration of common Pb. These characteristics, and the fact that it is widespread throughout various types of rocks, suggest that the U-Th-Pb dating of xenotime has broad applications. Studies of U-Pb dating on xenotime by ion microprobe (such as SHRIMP) have increased in recent years, whereas studies by laser ablation (LA)-ICP-MS are still rare. In this study, we developed a technique for U-Pb dating of xenotime using the 193 nm ArF laser-ablation system and Agilent 7500a Q-ICP-MS. To evaluate the reliability of our method, a xenotime standard, BS-1, was analyzed and calibrated against another xenotime standard, MG-1. The weighted mean 206 Pb/ 238 U ages of 510.1 ± 5.2 Ma (2 n = 21), 509.8 ± 4.3 Ma (2 n = 21) and 510.0 ± 4.6 Ma (2 n = 21) were obtained using beam diameters of 16, 24 and 32 m, respectively. These ages are identical to those determined by ID-TIMS method (weighted mean 206 Pb/ 238 U age of 508.8 ± 1.4 Ma), which supports the reliability of our LA-ICP-MS method. We also analyzed xenotimes in leucogranites from South Tibet and granites from Xihuashan in southern China, and obtained accurate and precise ages. Nevertheless, we observed systematic differences in Pb/U fractionation among xenotime, monazite and zircon. The matrix-effect resulted in either under-correction or over-correction of fractionation, and thus led to inaccurate ages. Thus, a matrix-matched material is required for U-Pb dating of xenotime by LA-ICP-MS.LIU ZhiChao WU FuYuan GUO ChunLi ZHAO ZiFu YANG JinHui SUN JinFeng 2011Chinese Science Bulletin2011,56,27:5
8SHRIMP zircon U-Pb dating for two episodes of migmatization in the Dabie orogen显示文摘Zircon CL imaging and SHRIMP U-Pb dating were carried out for migmatite in the Dabie orogen. Zircons from the Manshuihe migmatite show clear core-rim structures. The cores display sector or weak zoning and low Th/U ratios of 0.01 to 0.17, indicating their precipitation from metamorphic fluid. They yield a weighted mean age of 137±5 Ma. By contrast, the rims exhibit planar or nebulous zoning with relatively high Th/U ratios of 0.35 to 0.69, suggesting their growth from metamorphic melt. They give a weighted mean age of 124±2 Ma. Zircons from the Fenghuangguan migmatite also display core-rim structures. The cores are weakly oscillatory zoned or unzoned with high Th/U ratios of 0.21 to 3.03, representing inherited zircons of magmatic origin that experienced different degrees of solid-state recrystallization. SHRIMP U-Pb analyses obtain that its protolith was emplaced at 768±12 Ma, consistent with middle Neoproterozoic ages for protoliths of most UHP metaigneous rocks in the Dabie-Sulu orogenic belt. By contrast, the rims do not show significant zoning and have very low Th/U ratios of 0.01 to 0.09, typical of zircon crystallized from metamorphic fluid. They yield a weighted 206Pb/238U age of 137±4 Ma. Taking the two case dates together, it appears that there are two episodes of zircon growth and thus migmati-tization at 137±2 Ma and 124±2 Ma, respectively, due to metamorphic dehydration and partial melting. The appearance of metamorphic dehydration corresponds to the beginning of tectonic extension thus to the tectonic switch from crustal compression to extension in the Dabie orogen. On the other hand, the partial melting is responsible for the extensional climax, resulting in formation of coeval migmatite, granitoid and granulite. They share the common protolith, the collision-thickened continental crust of mid-Neoproterozoic ages.WU YuanBao TANG Jun ZHANG ShaoBing ZHAO ZiFu 2007Chinese Science Bulletin2007,52,13:4
9Recovery of NH4^+ by corn cob produced biochars and its potential application as soil conditioner显示文摘NH < 潜水艇 class= “ a-plus-plus ” > 4 < 啜 class= “ a-plus-plus ” >+ 离子,在水的系统的一种主要污染物质,不是河和湖里的仅仅原因超营养作用而且贡献鱼毒性。在这研究, eco 友好的 biosorbent 从玉米圆块的热分解被准备,便宜农业残余。biochars 在 400 点由玉米圆块的热分解生产了调查 haloacetic 酸(HAA ) 的出现,一组消毒副产品,在里面游泳池和矿泉水。样品在宾夕法尼亚从六个室内的水池,六个室外的水池和三眼矿泉被收集,美国,并且从在中国北京的五个室外的水池和九个室内的水池。五 HAA (HAA5 ) ,包括的 monochloroacetic 酸, dichloroacetic 酸, trichloroacetic 酸, monobromoacetic 酸,和 dibromoacetic 酸被分析。全部的氯, pH 和全部的器官的碳集中也被分析。结果显示在游泳池的 HAA5 和在美国的矿泉的层次从 70 ~ 3980 g 湩愠 ? 慨瑬湩吗?Yang ZHANG Zifu LI Ibrahim B MAHMOOD 2014Frontiers of Environmental Science & Engineering2014,8,6:2
10Physicochemical properties and volatile components of pea flour fermented by Lactobacillus rhamnosus L08显示文摘Pea(Pisum sativum L.)is an important source of plant proteins.However,the use of pea flour as a food ingredient is greatly limited due to its strong beany flavor.In this work,we investigated the effects of Lactobacillus rhamnosus L08(L.rhamnosus L08)fermentation on the physicochemical characteristics,amino acids composition and volatile flavor compounds of pea flour.We found that L.rhamnosus L08 had the probiotic potential of utilizing pea flour as fermentation substrate.L.rhamnosus L08 fermentation significantly increased the content of most amino acids,and total amino acid content increased from 222.18 mg/g at 0 h to 262.35 mg/g at 6 h.A total of 44 volatile compounds were identified in pea flour.L.rhamnosus L08 fermentation increased the variety of acids and esters,while reduced the unpleasant flavor such as nonanal,decanal,octanal,1-hexanol and 2-ethyl-1-hexanol.The emulsifying stability and foam stability of pea flour were slightly enhanced during fermentation.Our results illustrate that lactic acid bacteria fermentation is a promising approach to eliminate undesirable aroma of pea flour.Moreover,this study provides theoretical support for the application of peas as high-quality protein source.Mengqi Pei Zifu Zhao Song Chen E.I.Reshetnik S.L.Gribanova Chun Li Guofang Zhang Libo Liu Lin Zhao 2022Food Bioscience2022,46,2:2
11A spatiotemporal data collection of viral cases for COVID-19 rapid response显示文摘Under the global health crisis of COVID-19,timely,and accurate epi-demic data are important for observation,monitoring,analyzing,modeling,predicting,and mitigating impacts.Viral case data can be jointly analyzed with relevant factors for various applications in the context of the pandemic.Current COVID-19 case data are scattered across a variety of data sources which may consist of low data quality accompanied by inconsistent data structures.To address this short-coming,a multi-scale spatiotemporal data product is proposed as a public repository platform,based on a spatiotemporal cube,and allows the integration of different data sources by adopting various data standards.Within the spatiotemporal cube,a comprehensive data processing workflow gathers disparate COVID-19 epidemic data-sets at the global,national,provincial/state,county,and city levels.This proposed framework is supported by an automatic update with a 2-h frequency and the crowdsourcing validation team to produce and update data on a daily time step.This rapid-response dataset allows the integration of other relevant socio-economic and environ-mental factors for spatiotemporal analysis.The data is available in Harvard Dataverse platform(http://gffzz9c54d31c51204187svw5wubqkqkox6qwv.ffgz.tsg.suse.edu.cn/dataset.xhtml?persistentId=doi:10.7910/DVN/8HGECN)and GitHub open source repository(http://gffzz188fe103f8f1460asvw5wubqkqkox6qwv.ffgz.tsg.suse.edu.cn/stccenter/COVID-19-Data).Dexuan Sha Yi Liu Qian Liu Yun Li Yifei Tian Fayez Beaini Cheng Zhong Tao Hu Zifu Wang Hai Lan You Zhou Zhiran Zhang Chaowei Yang 2021Big Earth Data2021,5,1:2
12Taking the pulse of COVID-19:a spatiotemporal perspective显示文摘The sudden outbreak of the Coronavirus disease(COVID-19)swept across the world in early 2020,triggering the lockdowns of several billion people across many countries,including China,Spain,India,the U.K.,Italy,France,Germany,Brazil,Russia,and the U.S.The transmission of the virus accelerated rapidly with the most confirmed cases in the U.S.,India,Russia,and Brazil.In response to this national and global emergency,the NSF Spatiotemporal Innovation Center brought together a taskforce of international researchers and assembled implementation strategies to rapidly respond to this crisis,for supporting research,saving lives,and protecting the health of global citizens.This perspective paper presents our collective view on the global health emergency and our effort in collecting,analyzing,and sharing relevant data on global policy and government responses,human mobility,environmental impact,socioeconomical impact;in developing research capabilities and mitigation measures with global scientists,promoting collaborative research on outbreak dynamics,and reflecting on the dynamic responses from human societies.Chaowei Yang Dexuan Sha Qian Liu Yun Li Hai Lan Weihe Wendy Guan Tao Hu Zhenlong Li Zhiran Zhang John Hoot Thompson Zifu Wang David Wong Shiyang Ruan Manzhu Yu Douglas Richardson Luyao Zhang Ruizhi Hou You Zhoua Cheng Zhong Yifei Tian Fayez Beaini Kyla Carte Colin Flynn Wei Liu Dieter Pfoser Shuming Bao Mei Li Haoyuan Zhang Chunbo Liu Jie Jiang Shihong Du Liang Zhao Mingyue Lu Lin Li Huan Zhou Andrew Ding 2020International Journal of Digital Earth2020,13,10:2
13Generation of transgenic golden Syrian hamsters显示文摘Mingming Gao Baoyu Zhang Jinjiao Liu Xin Guo Haibo Li Tao Wang Zifu Zhang Jiawei Liao Nathan Cong Yuhui Wang Liqing Dong Zhao George Liu 2014Cell Research2014,24,3:2
14Microgel particles at the fluid-fluid interfaces显示文摘Li Zifu Ngai To 2013Nanoscale2013,5,4:1
15Properties and applications of biochars derived from different biomass feedstock sources显示文摘In China,substantial agricultural and garden wastes are burned yearly.This practice not only wastes resources but also pollutes air.Corn straw and poplar leaves are typical agricultural and garden waste in China.In this study,corn straw and poplar leaves were used to prepare biochars with different pyrolysis temperatures(250℃,350℃,450℃,550℃and 650℃)and were labeled as CC(corn straw)and LC(poplar leaves),respectively.The biochars were characterized through elemental analysis,Brunauer-Emmett-Teller surface area analysis,scanning electron microscopy and Fourier transform infrared spectroscopy.Yield,ash content and biochar pH were also measured.Results showed that the two biochars possessed some similar characteristics with increasing pyrolysis temperature.These attributes included increased carbon content,biochar hydrophobicity,alkaline pH;decreased hydrogen and oxygen contents and polar functional group content;and enlarged surface area.The biochars also displayed some different characteristics,such as the obviously larger surface area of CC than that of LC at high pyrolysis temperatures and the regular holes of CC and irregular and disordered holes of LC.When biochars CC-650 and LC-650 were used as soil conditioners,the soil pH increased by 0.3 and 0.4 units,respectively,and the soil cation exchange capacity increased by 12.7%and 21.5%,respectively,with respect to those of the blank controls.Bai Xiaofeng Zhou Xiaoqin Li Zifu Ni Jiewen Bai Xue 2017International Journal of Agricultural and Biological Engineering2017,10,2:1
16Online measurement of alkalinity in anaerobic co-digestion using linear regression method显示文摘Alkalinity is a reliable indicator of process stability in anaerobic digestion system.Total alkalinity(TA)and partial alkalinity(PA)are usually monitored offline as indicators for the status of anaerobic digestion process.In order to online monitor TA and PA,the linear regression method was used as estimator to predict alkalinity via software sensor method.Parameters,namely,pH,oxidation and reduction potential(ORP),and electrical conductivity(EC),were used as input variables.EC was the most significant parameter with TA and PA.Multiple linear regression(MLR)models and simple linear regression models with EC were constructed to predict TA and PA in anaerobic co-digestion system.On the basis of the evaluation of prediction accuracy,the applications of linear regression models were better for monitoring PA than TA.MLR models provided higher accuracy for alkalinity prediction than simple linear regression models.The two MLR models based on single-phase anaerobic digestion system were also feasible to predict TA in anaerobic co-digestion systems.However,the accuracy of these models should be improved by calibrating for broad applications of linear regression method in online alkalinity measurement.Bai Xue Li Zifu Wang Xuemei He Xi Cheng Shikun Bai Xiaofeng Gao Ruiling 2017International Journal of Agricultural and Biological Engineering2017,10,1:1
17The rational construction and the tooth profile on cycloid disk of a large cycloid gearing显示文摘LI Lixing GUAN Tianmin WANG Zifu 1989Chinese Journal of Mechanical Engineering1989,2,1:1
18The water content and hydrogen isotope composition of continental lithospheric mantle and mantle-derived mafic igneous rocks in eastern China显示文摘矿物质的水内容并且在从东方中国的导出披风的捕虏体整个岩石展出大变化并且通常是比从另外的 on-craton 和 off-craton lithotectonic 单位的那些低的。不过,水矿物质满足并且在橄榄岩捕虏体,从少年 lithospheric 披风采购原料,通常是的 Junan 整个岩石比在其它地方的那些高在东方中国。这建议少年 lithospheric 披风的起始的水内容不是低的。在水内容和在披风捕虏体和在辉石的散开侧面的没有出现的矿物质的 Mg # 值之间没有明显的关联,不上升建议在披风捕虏体的低水内容和在捕虏体期间的水的散开损失之间的关系与招待玄武岩的岩浆。如果 subcontinental lithospheric 披风(SCLM ) 底被 asthenospheric 披风加热,水的散开损失被期望发生。在另一方面,抽取玄武岩从 SCLM 融化是更有效的机制减少捕虏体的水内容。主要在东方中国中生代和新生代暗岩融化正常海中央山脉暗岩(MORB ) 比那些高有水内容,从斑晶的水内容计算了。中生代暗岩岛弧暗岩展出类似的水内容到那些,而新生代暗岩与他们中的一些一起展出可比较的水内容到海洋的岛暗岩和 backarc 盆暗岩类似于岛弧暗岩。这些观察由水的液体由于交代作用在大陆人暗岩的披风来源建议水丰富并且含水融化源于脱水并且融化深深地 subducted 外壳。导出披风的 megacrysts,在捕虏体的矿物质和在从东方中国的暗岩的斑晶也展出大部分可变的氢同位素作文,在东方中国为新生代 SCLM 显示大同位素的异质。比弄空的 MORB 披风和从弄空的 MORB 披风的被背离的氢同位素作文的高的水内容建议新生代大陆人 lithospheric 披风承受了交代作用由含水融化源于在东方中国大陆下面的 subducted 太平洋平板的部分融化。交代作用将在 SCLM 底然后到它的粘性的减少导致水内容的增加。作为后果, SCLM 底将被削弱并且这样产生构造侵蚀和分层。因此,在海洋的 subduction 隧道的外壳披风相互作用是为在诺思中国 craton 岩石圈变瘦的主要原因。XU Zheng GONG Bin ZHAO ZiFu 2016Science China Earth Sciences2016,59,5:1
19Assessment of metals in dry-toilet collected matters from suburban areas of Ulaanbaatar, Mongolia, using biosolids quality guidelines and potential ecological risk index显示文摘干燥厕所镇定从传统的干燥厕所的坑的物质(DCM ) 在郊外的区域是潜在的健康和生态的风险。在这研究,在来自 Ulaanbaatar 的郊外的区域的 DCM 的金属的特征被调查。当重金属在底层时,结果显示 DCM 包含有机物和营养素的一个高百分比,它显示出好农业潜力。Cr, Cu, Hg, Ni, Pb,和 Zn 的集中范围是Xuan LIU Zifu LI Eric BOSC Heinz-Peter MANG 2014Frontiers of Environmental Science & Engineering2014,8,5:1
20Metamorphic effect on zircon Lu-Hf and U-Pb isotope systems in ultrahigh-pressure eclogite-facies metagranite and metabasite显示文摘Zheng Yongfei Wu Yuanbao Zhao Zifu 0,,:1
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