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| 1 | Spatial differences in rock uplift rates inferred from channel steepness indices along the northern flank of the Qilian Mountain,northeast Tibetan Plateau显示文摘The rate and distribution of deformation along the Qilian Mountain,on the northeastern Tibetan Plateau,is needed to understand the evolution of high topography associated with the plateau.Recently,a number of empirical studies have provided support for the contention,common to most models of fluvial incision,that rock uplift rate exerts a first-order control on the gradient of longitudinal river profiles.Along the northern Qilian Mountain,this method is used to extract information about the spatial patterns of differential rock uplift.Analysis of the longitudinal profiles of bedrock channels reveals systematic differences in the channel steepness index along the trend of the frontal ranges.Local comparisons of channel steepness reveal that lithology and precipitation have limited influence on channel steepness.Similarly,there is little evidence suggesting that channel steepness is influenced by differences in the sediment loads.We argue that the distribution of channel steepness in the Qilian Mountain is mostly the result of differential rates of rock uplift.Thus,channel steepness indices reveal a lower rock uplift rate in the eastern portion of the Qilian Mountain and a higher rate in the middle and west.The highest rates appear to occur in the middle-west portions of the range,just to the west of the Yumu Shan. | HU XlaoFei PAN BaoTian KIRBY Eric LI QingYang GENG HaoPeng CHEN JiFeng | 2010 | Chinese Science Bulletin2010，55，27： | 35 |
| 2 | Adakite-type sodium-rich rocks in Awulale Mountain of west Tianshan:Significance for the vertical growth of continental crust显示文摘The sodium-rich dacites and albite porphyries of Permian in the Awulale Mountain of west Tianshan have unique chemical and trace element signatures identical to adakite. These intermediate-acidic igneous rocks are characterized by high Na2O, Al2O3 and Sr contents and high Sr/Y and La/Y ratios (>40 and >20, respectively), and low Y and Yb contents, and strong depletion in HREE, and positive Eu anomaly. The (143Nd/144Nd)i is in the range from0.51236 to 0.51248 and the εNd(t) is positive value (+0.79-+3.11); the (87Sr/86Sr)i is in the range from 0.7052 to 0.7054. These Nd and Sr isotopic composition features indicate that the source rocks of these adakite-type rocks are from a weakly depleted mantle, or a depleted mantle, but was contaminated by the crustal materials. These adakite-type rocks were most likely derived from the partial melting of new underplated basaltic rocks under the conditions of amphibo-lite to eclogite transition in the postcollisional environment of North Xinjiang during the Permian | XIONG Xiaolin ZHAO Zhenhua BAI Zhenghua MEI Houjun WANG Yixian WANG Qiang XU Jifeng Niu Hecai BAO Zhiwei | 2001 | Chinese Science Bulletin2001，46，10： | 25 |
| 3 | Efficacy and safety of sorafenib in patients in the Asia-Pacific region with advanced hepatocellular carcinoma: a phase III randomised, double-blind, placebo-controlled trial显示文摘 | Ann-Lii Cheng Yoon-Koo Kang Zhendong Chen Chao-Jung Tsao Shukui Qin Jun Suk Kim Rongcheng Luo Jifeng Feng Shenglong Ye Tsai-Sheng Yang Jianming Xu Yan Sun Houjie Liang Jiwei Liu Jiejun Wang Won Young Tak Hongming Pan Karin Burock Jessie Zou Dimitris Volio | 2009 | Lancet Oncology2009，，1： | 23 |
| 4 | CONSENSUS CONTROL FOR LEADER-FOLLOWING MULTI-AGENT SYSTEMS WITH MEASUREMENT NOISES显示文摘This work is concerned with consensus control for a class of leader-following multi-agentsystems (MASs).The information that each agent received is corrupted by measurement noises.Toreduce the impact of noises on consensus,time-varying consensus gains are adopted,based on whichconsensus protocols are designed.By using the tools of stochastic analysis and algebraic graph theory,asufficient condition is obtained for the protocol to ensure strong mean square consensus under the fixedtopologies.This condition is shown to be necessary and sufficient in the noise-free case.Furthermore,by using a common Lyapunov function,the result is extended to the switching topology case. | Cuiqin MA Tao LI Jifeng ZHANG | 2010 | Journal of Systems Science & Complexity2010，23，1： | 23 |
| 5 | Age of Anzishan granulites in the Mianxian-Lueyang suture zone of Qingling orogen:With a discussion of the timing of final assembly of Yangtze and North China craton blocks显示文摘Many granulite blocks have been recently dis-covered in the Anzishan area, Mianxian County, ShaanxiProvince, in the central segment of the Manxian-Lueyangsuturc zone. Sm-Nd isochron and 40 Ar39 Ar ages of mineralsamples of granulites from this area are reported in the note.The granulite mineral samples give a Sm-Nd isochron age oft=(206 ± 55) Ma (2σ), with INd = 0.51302±7(2σ) and MSWD =1.6, and a biotite 40Ar/39 Ar plateau age of (199.7±l.7) Ma(2σ). The formation and uplift of the granulites were relatedto subduction of the Yangtze block beneath the SouthQinling microcontinent and their collision and the finalamalgamation of the Yangtze and Sino-Korean craton blocksin the Indosinian, and their age is consistent with or close tothose of the Dabie ultrahigh-pressure and high-pressuremetamorphic rocks, so have great tectonic significance. | ZHANG Zongqing ZHANG Guowei TANG SuohaiV XU Jifeng YANG Yongcheng WANG Jinhui | 2002 | Chinese Science Bulletin2002，47，22： | 19 |
| 6 | Effective gene targeting in rabbits using RNA-guided Cas9 nucleases显示文摘 | Dongshan Yang Jie Xu Tianqing Zhu Jianglin Fan Liangxue Lai Jifeng Zhang Y. Eugene Chen | 2014 | Journal of Molecular Cell Biology2014，8，1： | 18 |
| 7 | Overview on Submodule Topologies,Modeling,Modulation,Control Schemes,Fault Diagnosis,and Tolerant Control Strategies of Modular Multilevel Converters显示文摘In the present scenario,modular multilevel converters(MMCs)are considered to be one of the most promising and effective topologies in the family of high-power converters because of their modular design and good scalability;MMCs are extensively used in high-voltage and high-power applications.Based on their unique advantages,MMCs have attracted increasing attention from academic circles over the past years.Several studies have focused on different aspects of MMCs,including submodule topologies,modeling schemes,modulation strategies,control schemes for voltage balancing and circulating currents,fault diagnoses,and fault-tolerant control strategies.To summarize the current research status of MMCs,all the aforementioned research issues with representative research approaches,results and characteristics are systematically overviewed.In the final section,the current research status of MMCs and their future trends are emphasized. | Fujin Deng Yongqing Lu Chengkai Liu Qian Heng Qiang Yu Jifeng Zhao | 2020 | Chinese Journal of Electrical Engineering2020，6，1： | 15 |
| 8 | Chronology and Geochemistry of the Nadingcuo Volcanic Rocks in the Southern Qiangtang Region of the Tibetan Plateau:Partial Melting of Remnant Ocean Crust along the Bangong-Nujiang Suture显示文摘计算碱的岩石主要 trachyte 和 trachyandesite 填写了的 Nadingcuo high-K 是在在西藏的高原的南部的 Qiangtang 岩层的暴烈的岩石的最大的露头区域。然而,他们的准确来源和 peterogenesis 仍然被辩论。40Ar-39Ar 和 LAM-ICPMS 锆石 U-Pb 同位素的标明日期证实这些岩石爆发了在始新世。另外, Nadingcuo 暴烈的岩石被高 Sr/Y 内容比率描绘,与从海洋的外壳的部分融化导出的 adakite 类似。他们能进一步作为高 Mg#(Mg#= 4857 ) 和低 Mg#(Mg#= 3342 ) 被分类子类型。Nadingcuo adakitic 岩石有相对低(87Sr/86Sr ) 我和高 Nd (t) ,显示出类似的一个趋势到在 Bangong-Nujiang 海洋的外壳中在场的 Dongcuo ophiolite。简单建模显示 Nadingcuo adakitic 岩石是与 10%20% 源于 Bangong-Nujiang 海洋的暗岩的混合拉萨岩层的外壳的材料。在这些底上,我们建议低 Mg# Nadingcuo adakitic 岩石是残余的部分融化的产品有小沉积的海洋的外壳,和高 Mg# 岩石是在升起之间的反应的结果残余融化有 subducted 的海洋的外壳沉积和披风楔。因此, Nadingcuo adakitic 岩石的起源可能与印度亚洲的碰撞在新生代期间触发的 intracontinental subduction 有关。 | WANG Baodi CHEN Jianlin XU Jifeng WANG Liquan ZENG Qinggao DONG Yanhui | 2010 | Acta Geologica Sinica(English Edition)2010，84，6： | 15 |
| 9 | Evaluation of solar aided biomass power generation systems with parabolic trough field显示文摘Solar and biomass are both renewable energy resources.Using biomass as fuel is becoming more and more attractive after governments increase the tariff for the electricity from the renewable sources.However the costs of power from a biomass power generation plant depend greatly on the availability and quality of the biomass resource.The commercialization of solar alone thermal power generation is hindered by its high initial investment and low thermal efficiency.In this paper,a concept of integrating solar into a biomass power generation system is put forward.In the system the oil heated by a parabolic trough solar field is used to replace the extraction steam to preheat the feed water(entering a biomass boiler) and the previous extraction steam thus saved can continue to do work in the lower stages of turbine.The performance of the hybrid system with different replacements is analyzed and compared through two typical solar aided biomass generating units.The results show that the integration not only reduces the consumption of biomass fuel(at the same generation capacity) but is also proved to be an efficient way to convert solar thermal energy into power.The results also show that with the same solar aperture area,the higher the grade of the replaced extraction steam,the better the thermal performance and economy. | HOU HongJuan YANG YongPing HU Eric SONG JiFeng DONG ChangQing MAO Jian | 2011 | Science China(Technological Sciences)2011，54，6： | 15 |
| 10 | The recognition of adakite-type gneisses in the North Dabie Mountain and its implication to ultrahigh pressure metamorphic geology显示文摘Adakite is an igneous rock generated by the partial melting of subducting ocean slab in an island arc setting. Meanwhile, residuals of the slab-melting are transformed to eclogite or garnet-amphibolite during a slab subduction process. This note reports the adakite-type grey gneisses discovered in the North Dabie Mountain. These adakitic rocks are characterized by high AI2O3(14.97%-17.56%), Sr (545-941 μg/g), Sr/Y (44.71-218.98), La/Yb (16.70-97.50), and low Y (3.32-12.19μg/g), Yb (0.31-1.34 μg/g), Sc (0.92-4.2μg/g), as well as positive Sr anomaly but absent or positive Eu anomaly. They are different from the low aluminum grey gneisses with low AI2O3 (13.73%-14.38%), Sr (262-409 μg/g), Sr/Y (6.46-15.97) and La/Yb (1.90-22.60), high Y(21.79-36.24 μg/g), Yb (2.00-5.59 μg/g) , Sc (8.30%-12.70%), and negative Sr, Eu anomaly in the North Dabie Mountain. The adakite-type grey gneisses in the North Dabie Mountain were most probably formed by the partial melting of subducting ocean slab before the | WANG Qiang XU Jifeng WANG Jianxin ZHAO Zhenhua WANG Renjing QIU Jiaxiang XIONG Xiaolin SANG Longkang PENG Lianhong | 2000 | Chinese Science Bulletin2000，45，21： | 12 |
| 11 | Adakites related to subduc-tion in the northern margin of Junggar arc for the Late Paleozoic:Products of slab melting显示文摘Volcanic rocks with adakitic compositional signature have been recognized in the northern margin of ancient Junggar island arc for the Late Paleozoic. These adakites for the early Devonian from the Tuoranggekudouke Group (D1t) are characteristic of high Sr, Sr/Y and (La/Yb)N but low Y, Yb and HREE. Their compositional characteristics are much similar to those of the typical adakites in the world but distinct from those of the normal arc volcanic rocks from the same Group. We conclude that these adakitic volcanic rocks were produced by slab melting during the early period of Paleoasia-ocean lithosphere subduction. This infers that the Paleoasia Ocean in the north Junggar area began a new subduction process in the early Devonian. | Jifeng Xu Houjun Mei Xueyuan Yu Zhenghua Bai Hecai Niu Fanrong Chen Zuoping Zhen Qiang Wang | 2001 | Chinese Science Bulletin2001，46，15： | 11 |
| 12 | Active learning for accelerated design of layered materials显示文摘Hetero-structures made from vertically stacked monolayers of transition metal dichalcogenides hold great potential for optoelectronic and thermoelectric devices.Discovery of the optimal layered material for specific applications necessitates the estimation of key material properties,such as electronic band structure and thermal transport coefficients.However,screening of material properties via brute force ab initio calculations of the entire material structure space exceeds the limits of current computing resources.Moreover,the functional dependence of material properties on the structures is often complicated,making simplistic statistical procedures for prediction difficult to employ without large amounts of data collection.Here,we present a Gaussian process regression model,which predicts material properties of an input hetero-structure,as well as an active learning model based on Bayesian optimization,which can efficiently discover the optimal hetero-structure using a minimal number of ab initio calculations.The electronic band gap,conduction/valence band dispersions,and thermoelectric performance are used as representative material properties for prediction and optimization.The Materials Project platform is used for electronic structure computation,while the BoltzTraP code is used to compute thermoelectric properties.Bayesian optimization is shown to significantly reduce the computational cost of discovering the optimal structure when compared with finding an optimal structure by building a regression model to predict material properties.The models can be used for predictions with respect to any material property and our software,including data preparation code based on the Python Materials Genomics(PyMatGen)library as well as python-based machine learning code,is available open source. | Lindsay Bassman Pankaj Rajak Rajiv K.Kalia Aiichiro Nakano Fei Sha Jifeng Sun David J.Singh Muratahan Aykol Patrick Huck Kristin Persson Priya Vashishta | 2018 | npj Computational Materials2018，，1： | 10 |
| 13 | Recognition of Ophiolite Belt and Granulite in Northern Area of Mian-Lue, Southern Qinling, China and Their Implication显示文摘RecognitionofOphioliteBeltandGranuliteinNorthernAreaofMian-Lue,SouthernQinling,ChinaandTheirImplication￥XuJifeng(Departmentof... | Xu Jifeng(Department of Geology, China University of Geosciences, Wuhan 430074)Zhang Benren Han Yinwen(Department of Geochehastry, China University of Geosciences, Wuhan 430074) | 1994 | Journal of Earth Science1994，13，1： | 9 |
| 14 | Sintilimab versus docetaxel as second-line treatment in advanced or metastatic squamous non-small-cell lung cancer:an open-label,randomized controlled phase 3 trial(ORIENT-3)显示文摘Background:Treatment options for Chinese patients with locally advanced or metastatic squamous-cell non-small-cell lung cancer(sqNSCLC)after failure of first-line chemotherapy are limited.This study(ORIENT-3)aimed to evaluate the efficacy and safety of sintilimab versus docetaxel as second-line treatment in patients with locally advanced or metastatic sqNSCLC.Methods:ORIENT-3 was an open-label,multicenter,randomized controlled phase 3 trial that recruited patients with stage IIIB/IIIC/IV sqNSCLC after failure with first-line platinum-based chemotherapy.Patients were randomized in a 1:1 ratio to receive either 200 mg of sintilimab or 75 mg/m^(2) of docetaxel intravenously every 3 weeks,stratified by the Eastern Cooperative Oncology Group performance status.The primary endpoint was overall survival(OS)in the full analysis set(FAS).Secondary endpoints included progression-free survival(PFS),objective response rate(ORR),disease control rate(DCR),duration of response(DoR)and safety.Results:Between August 25,2017,and November 7,2018,290 patients were randomized.For FAS,10 patients fromthe docetaxel armwere excluded.Themedian OS was 11.79(n=145;95%confidence interval[CI],10.28-15.57)months with sintilimab versus 8.25(n=135;95%CI,6.47-9.82)months with docetaxel(hazard ratio[HR]:0.74;95%CI,0.56-0.96;P=0.025).Sintilimab treatment significantly prolonged PFS(median 4.30 vs.2.79 months;HR:0.52;95%CI,0.39-0.68;P<0.001)and showed higher ORR(25.50%vs.2.20%,P<0.001)and DCR(65.50%vs.37.80%,P<0.001)than the docetaxel arm.The median DoRwas 12.45(95%CI,4.86-25.33)months in the sintilimab arm and 4.14(95%CI,1.41-7.23)months in the docetaxel arm(P=0.045).Treatment-related adverse events of grade≥3were reported in 26(18.1%)patients in the sintilimab arm and 47(36.2%)patients in the docetaxel arm.Exploratory biomarker analysis showed potential predictive values of expression levels of two transcription factors,including OVOL2(HR:0.35;P<0.001)and CTCF(HR:3.50;P<0.001),for sintilimab treatment.Conclusions:Compared with docetaxel,sintilimab significantly improved the OS,PFS,and ORR of Chinese patients with previously treated locally advanced or metastatic sqNSCLC. | Yuankai Shi Lin Wu Xinmin Yu Puyuan Xing Yan Wang Jianying Zhou Airong Wang Jianhua Shi Yi Hu Ziping Wang Guangyu An Yong Fang Sanyuan Sun Caicun Zhou Changli Wang Feng Ye Xingya Li Junye Wang Mengzhao Wang Yunpeng Liu Yanqiu Zhao Ying Yuan Jifeng Feng Zhendong Chen Jindong Shi Tao Sun Gang Wu Yongqian Shu Qisen Guo Yi Zhang Yong Song Shucai Zhang Yuan Chen Wei Li Hongrui Niu Wenwei Hu Lijun Wang Jianan Huang Yang Zhang Ying Cheng Zhengdong Wu Bo Peng Jiya Sun Christoph Mancao Yanqi Wang Luyao Sun | 2022 | Cancer Communications2022，42，12： | 8 |
| 15 | XPA A23G polymorphism is associated with the elevated response to platinum-based chemotherapy in advanced non-small cell lung cancer显示文摘DNA 修理能力(DRC ) 向基于铂的化疗与癌症房间的敏感被相关。我们假设那在 DNA 的基因多型性修理基因 XPA (干皮病 pigmentosum 组 A )和 XPG (干皮病 pigmentosum 组 G )( ERCC5 ,切除修理跨互补的组 5 ),它在 DNA 修理效率导致内部个人的差别,可以在先进非小的房间肺癌症( NSCLC )预言临床的反应到铂代理人病人。在这研究,我们发现 XPA A23G 多型性的 A G 变化显著地增加了反应到基于铂的化疗。在 XPG His46His 的多型性与减少的治疗回答被联系,但是不是统计上重要的。 | Jifeng Feng Xinchen Sun Ning Sun Shukui Qin Fan Li Hongyan Cheng Baoan Chen YuanDong Cao Jun Ma Lu Cheng Zuhong Lu Jiazhong Ji Yingfeng Zhou | 2009 | Acta Biochimica et Biophysica Sinica2009，41，5： | 8 |
| 16 | Irinotecan plus S-1 versus S-1 in patients with previously treated recurrent or metastatic esophageal cancer(ESWN 01):a prospective randomized,multicenter,open-labeled phase 3 trial显示文摘Background:The benefit of systemic treatments in esophageal squamous cell carcinoma(ESCC)which has pro-gressed after chemotherapy is still uncertain and optimal regimens based on randomized trials have not yet been established.We aimed to compare the efficacy of irinotecan plus S-1 with S-1 monotherapy in recurrent or metastatic ESCC patients who had resistance to platinum-or taxane-based chemotherapy.Methods:We conducted a prospective randomized,multicenter,open-label,phase 3 trial in 15 centers across China.Eligible patients were adults with histologically confirmed recurrent or metastatic ESCC,and were randomly assigned(ratio,1:1)to receive either irinotecan plus S-1(intravenous infusion of irinotecan[160 mg/m2]on day 1 and oral S-1[80-120 mg]on days 1-10,repeated every 14 days)or oral S-1 monotherapy(80-120 mg/day on days 1-14,repeated every 21 days)using a central computerized minimization procedure.The primary endpoint was progression-free survival(PFS).Results:Between December 23,2014 and July 25,2016,we screened 148 patients and randomly assigned 123 patients to receive either irinotecan plus S-1 regimen(n=61)or S-1 monotherapy(n=62).After a median follow-up of 29.2 months(95%confidence interval[CI]17.5-40.9 months),the median PFS was significantly longer in the irinotecan plus S-1 group than in the S-1 monotherapy group(3.8 months[95%CI 2.9-4.3 months]vs.1.7 months[95%CI 1.4-2.7 months],hazard ratio=0.58,95%CI 0.38-0.86,P=0.006).The objective response rates were 24.6%in the irinotecan plus S-1 group and 9.7%in the S-1 monotherapy group(P=0.002).The patients in the irinotecan plus S-1 group presented with increased rates of grade 3-4 leukopenia(16.4%vs.0%),neutropenia(14.8%vs.1.6%),and nausea(4.9%vs.0%).No significant difference in grade 3-4 diarrhea and no treatment-related deaths were observed in both groups.Conclusions: The combination of irinotecan with S-1 was similarly tolerable but significantly prolonged PFS compared to S-1 monotherapy as a second- or third-line treatment in patients with recurrent or metastatic ESCC. | Jing Huang Binghe Xu Ying Liu Junxing Huang Ping Lu Yi Ba Lin Wu Yuxian Bai Shu Zhang Jifeng Feng Ying Cheng Jie Li Lu Wen Xianglin Yuan Changwu Ma Chunhong Hu Qingxia Fan Xi Wang | 2019 | Cancer Communications2019，39，1： | 8 |
| 17 | Study on the interface of direct hot rolling titanium-clad steel plates显示文摘In this study,the interface characteristics of a direct hot rolling titanium-clad steel plate were analyzed,and the mechanism of interface cracking was explored. The detrimental effect from the formation of TFe,TiC,and a Si-enriched layer on the bonding strength was clarified,and an industrial-scaled titanium-clad steel plate with shear strength over 200 MPa was produced with a carefully set schedule accordingly. It was found that hot rolling titanium-clad steel plates had a flat interface without obvious cracks. In the rolling process,both Ti and Fe atoms interdiffused,but Fe diffused much faster than Ti. The Fe-diffused area consisted of three regions. After a high temperature heat treatment,the diffusion depth of Fe and Ti elements increased significantly and evident Si segregation and TiFe layers were identified. Thermal cracking initiated in the Si segregation layer and then propagated along the TiFe layer and Fe-diffused layer on the titanium side. | SUN Jifeng LIANG Xiaojun JIAO Sihai | 2017 | Baosteel Technical Research2017，11，1： | 7 |
| 18 | Shoot-Specific Down-Regulation of Protein Farnesyltransferase (α-Subunit) for Yield Protection against Drought in Canola显示文摘Canola (Brassica 马来麝 L.) 是在世界和它的种子收益上的最重要的 oilseed 庄稼之一,质量被干旱应力显著地影响。作为对水赤字的天生、适应的回答,陆地植物由植物激素 abscisic 酸(骆驼毛的织物) 的快速的生合成避免潜在的损坏,它触发有气孔的闭合减少 transpirational 水损失。调停骆驼毛的织物的有气孔的反应是一个剂量依赖者过程;因此,为完成干旱回避的一条遗传工程途径能是敏化警卫房间的应答到这荷尔蒙。最近的基因研究作为在警卫房间控制骆驼毛的织物敏感的一个关键否定管理者指出了蛋白质 farnesyltransferase。我们以前证明了编码 farnesyltransferase (ERA1 ) 的 Arabidopsis 子单元的基因的下面规定提高植物的敏感到骆驼毛的织物和干旱忍耐。尽管 farnesyltransferase (AtFTA ) 的子单元也在骆驼毛的织物察觉到被含有,使用如此的一个基因目标在庄稼植物改进干旱忍耐的有效性没被验证。这里,我们报导 Arabidopsis hydroxypyruvate reductase (AtHPR1 ) 的倡导者的鉴定和描述,它在射击并且不在象根那样的非光合的纸巾明确地表示。AtHPR1 的倡导者区域包含元素和我们证实了的很好描绘的脱水应答的行动 cis 的核心主题那 AtHPR1 表情由干旱应力是可诱导的。在用驾驶 RNAi 构造的 AtHPR1 倡导者的 canola 的 FTA 的有条件、特定的下面规定在这块地里对干旱应力导致了收益保护。用这分子的策略,我们在在这重要庄稼种设计干旱忍耐取得了重要进步。 | Yang Wang Michelle Beaith Maryse Chalifoux Jifeng Ying Tina Uchacz Carlene Sarvas Rebecca Griffiths Monika Kuzma Jiangxin Wan Yafan Huang | 2009 | Molecular Plant2009，2，1： | 7 |
| 19 | Discovery of the highly depleted N-MORB-type volcanic rocks: new evidence for the Mianlue paleo-ocean显示文摘The highly depleted N-MORB-type volcanic rocks have been discovered in Mianlue mélange of Qinling orogenic belt, central China. These mafic rocks are associated with the meta-peridotites, showing LREE-depleted pattern, similar to N-MORB and typical ophiolites. It is indicated that an ancient ocean existed in the Mianlue area of Qinling orogenic belt during the late Paleozoic. | Jifeng Xu Xueyuan Yu Xianhua Li Yinwen Han Jihu Shen Benren Zhang | 1998 | Chinese Science Bulletin1998，43，6： | 7 |
| 20 | Identification of an Early–Middle Jurassic oxidized magmatic belt,south Gangdese,Tibet,and geological implications显示文摘The south Gangdese region is the site of subduction of the Neo-Tethys and subsequent continental collision. Compared with widespread Cretaceous and Cenozoic magmatism, Early–Middle Jurassic magmatic rocks and related deposits are rarely reported. Our work identified a >200 km long felsic rock belt associated with Cu mineralization in the south Gangdese region. We report here zircon U–Pb ages, zircon Ce^(4+)/Ce^(3+)values, and mineral assemblages of two Cu mineralized intrusions within the belt. A hornblende granite and a diorite porphyry were emplaced at 177.3 Ma and 166.3 Ma, respectively.Geological occurrence and magmatic hematite–magnetite–chalcopyrite intergrowths suggest that Cu mineralization formed coeval with Jurassic intrusions. Mineralized intrusions have high zircon Ce^(4+)/Ce^(3+)and EuN/Eu?N ratios, and hematite–magnetite intergrowths, suggesting their parent magmas were highly oxidized. Hornblende is common and primary fluid inclusions are found in titanite and apatite,indicating their parent magmas were water-saturated and exsolved volatile phases at early stage of magmatic evolution. Those magma characters contribute to the formation of porphyry Cu deposits. Given that majority subduction-related porphyry Cu systems have been eroded following uplift and denudation, the well-preserved Early–Middle Jurassic Cu mineralized igneous rocks in south Gangdese are favorable prospecting targets for subduction-related porphyry Cu deposits. | Yinqiao Zou Xilian Chen Wenting Huang Jian Zhang Huaying Liang Jifeng xu Ling Chen | 2017 | Science Bulletin2017，62，12： | 7 |
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