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| 1 | Shortened Basal Internodes Encodes a Gibberellin 2-Oxidase and Contributes to Lodging Resistance in Rice显示文摘改进住宿抵抗的繁殖半矮子变化被证明了在自从绿 revolution.?However 的来临,增加谷物产量极其成功,在亚洲繁殖半矮子米饭变化的多数主要依赖于 SD1 的变异的等位基因的基因介绍,它编码赤霉素( GA ) 20-oxidase , OsGA20ox2 ,为催化 GA 生合成。这里,我们报导新米饭住宿抵抗基因,弄短的基础 Internodes (SBI ) ,它编码赤霉素 ? 2-oxidase 并且明确地控制灰煤杆的延伸通过撤销的基础 internodes GA 活动。SBI 主要在灰煤杆被表示基础 internodes。基因分析显示 SBI 是影响米饭高度和住宿抵抗的半主导的基因。SBI 突变而产生之遗传的变体显示不同活动并且与米饭变化的高度被联系。与 SBI 等位基因的更高的活动繁殖与改进住宿抵抗和增加的产量产生新米饭变化。SBI 的发现为生产半矮子米饭显型提供一个理想的基因资源并且为与提高的住宿抵抗和高产量引起米饭变化提供有效策略。 | Chang Liu Jinshan Gui Chenjian Fu Hasi Yu Dongliang Song Junhui Shen Peng Qin Xuanming Liu Bin Han Yuanzhu Yang Laigeng Li | 2018 | Molecular Plant2018,11,2: | 33 |
| 2 | Nitrogen Deposition and Its Spatial Pattern in Main Forest Ecosystems along North-South Transect of Eastern China显示文摘A continuous three-year observation(from May 2008 to April 2011)was conducted to characterize the spatial variation of dissolved inorganic nitrogen(DIN)deposition at eight main forest ecosystems along the north-south transect of eastern China(NSTEC).The results show that both throughfall DIN deposition and bulk DIN deposition increase from north to south along the NSTEC.Throughfall DIN deposition varies greatly from 2.7 kg N/(ha·yr)to 33.0 kg N/(ha·yr),with an average of 10.6 kg N/(ha·yr),and bulk DIN deposition ranges from 4.1 kg N/(ha·yr)to 25.4 kg N/(ha·yr),with an average of 9.8 kg N/(ha·yr).NH4+-N is the dominant form of DIN deposition at most sampling sites.Additionally,the spatial variation of DIN deposition is controlled mainly by precipitation.Moreover,in the northern part of the NSTEC,bulk DIN deposition is 17%higher than throughfall DIN deposition,whereas the trend is opposite in the southern part of the NSTEC.The results demonstrate that DIN deposition would likely threaten the forest ecosystems along the NSTEC,compared with the critical loads(CL)of N deposition,and DIN deposition in this region is mostly controlled by agricultural activities rather than industrial activities or transportation. | ZHAN Xiaoyun YU Guirui HE Nianpeng FANG Huajun JIA Bingrui ZHOU Mei WANG Chuankuan ZHANG Junhui ZHAO Guangdong WANG Silong LIU Yunfen YAN Junhua | 2014 | Chinese Geographical Science2014,24,2: | 10 |
| 3 | Microscopic examination of intracellular organisms in bronchoalveolar lavage fluid for the diagnosis of ventilator-associated pneumonia:a prospective multi-center study显示文摘 | Liu Chang Du Zhaohui Zhou Qing Hu Bo Li Zhifeng Yu Li Xu Tao Fan Xuepeng Yang Junhui Li Jianguo | 2014 | Chinese Medical Journal2014,,10: | 6 |
| 4 | Pseudouridines in spliceosomal snRNAs显示文摘Spliceosomal RNAs are a family of small nuclear RNAs(snRNAs)that are essential for pre-mRNA splicing.All vertebrate spliceosomal snRNAs are extensively pseudouridylated after transcription.Pseudouridines in spliceosomal snRNAs are generally clustered in regions that are functionally important during splicing.Many of these modified nucleotides are conserved across species lines.Recent studies have demonstrated that spliceosomal snRNA pseudouridylation is catalyzed by two different mechanisms:an RNA-dependent mechanism and an RNA-independent mechanism.The functions of the pseudouridines in spliceosomal snRNAs(U2 snRNA in particular)have also been extensively studied.Experimental data indicate that virtually all pseudouridines in U2 snRNA are functionally important.Besides the currently known pseudouridines(constitutive modifications),recent work has also indicated that pseudouridylation can be induced at novel positions under stress conditions,thus strongly suggesting that pseudouridylation is also a regulatory modification. | Andrew T.Yu Junhui Ge Yi-Tao Yu | 2011 | Protein & Cell2011,2,9: | 5 |
| 5 | Nb2C MXene-Functionalized Scaffolds Enables Osteosarcoma Phototherapy and Angiogenesis/Osteogenesis of Bone Defects显示文摘Early surgical resection and chemotherapy of bone cancer are commonly used in the treatment of bone tumor,but it is still highly challenging to prevent recurrence and fill the bone defect caused by the resection site.In this work,we report a rational integration of photonic-responsive two-dimensional(2D)ultrathin niobium carbide(Nb2C)MXene nanosheets(NSs)into the 3D-printed bone-mimetic scaffolds(NBGS)for osteosarcoma treatment.The integrated 2D Nb2C-MXene NSs feature specific photonic response in the second near-infrared(NIR-II)biowindow with high tissue-penetrating depth,making it highly efficient in killing bone cancer cells.Importantly,Nb-based species released by the biodegradation of Nb2C MXene can obviously promote the neogenesis and migration of blood vessels in the defect site,which can transport more oxygen,vitamins and energy around the bone defect for the reparative process,and gather more immune cells around the defect site to accelerate the degradation of NBGS.The degradation of NBGS provides sufficient space for the bone remodeling.Besides,calcium and phosphate released during the degradation of the scaffold can promote the mineralization of new bone tissue.The intrinsic multifunctionality of killing bone tumor cell and promoting angiogenesis and bone regeneration makes the engineered Nb2C MXeneintegrated composite scaffolds a distinctive implanting biomaterial on the efficient treatment of bone tumor. | Junhui Yin Shanshan Pan Xiang Guo Youshui Gao Daoyu Zhu Qianhao Yang Junjie Gao Changqing Zhang Yu Chen | 2021 | Nano-Micro Letters2021,13,2: | 5 |
| 6 | Analysis of the efficacy of transcatheter arterial infusion chemotherapy in the treatment of pancreatic carcinoma显示文摘Objective:To evaluate the clinical efficacy of infusion of gemcitabine(GEM) and fluorouracil(5-FU)through the celiac artery and superior mesenteric artery in the treatment of pancreatic carcinoma(PC).Methods:We analyzed 20 patients diagnosed clinically or pathologically with PC,without metastases,who had an estimated survival duration of>3 months in our department from May 2009 to December 2014.Nine patients were treated directly without surgical resection of the tumor,while the other 11 patients were treated after surgery.In all patients,the femoral artery was punctured using the Seldinger technique,and a catheter was placed in the opening of the celiac artery or the superior mesenteric artery.We administered 500 mg/m2 GEM and 500 mg/m2 5-FU.Observational data included data on clinical efficacy and survival rates during the follow-up period of 3-72 months.Results:Twenty patients were treated 85 times with transcatheter arterial infusion chemotherapy(TAI).The survival rates were 80%,40%,35%,20%,10%,and 5% at 3,6,12,24,and 72 months,respectively.Conclusion: TAI chemotherapy with GEM and 5-FU may be a therapeutic option for the treatment of PC. | Chunhui Nie Yuelin Zhang Guanhui Zhou Tanyang Zhou Tongyin Zhu Baoquan Wang Shengqun Chen Hongliang Wang Ziniu Yu Li Jing Junhui Sun | 2021 | Journal of Interventional Medicine2021,4,1: | 4 |
| 7 | Reduced grain chalkiness and its possible physiological mechanism in transgenic rice overexpressing L-GalLDH显示文摘Chalkiness is one of the key factors determining rice quality and price. Ascorbic acid(Asc) is a major plant antioxidant that performs many functions in plants. L-Galactono-1,4-lactone dehydrogenase(L-Gal LDH, EC1.3.2.3) is an enzyme that catalyzes the final step of Asc biosynthesis in plants. Here we show that the L-Gal LDH-overexpressing transgenic rice, GO-2,which has constitutively higher leaf Asc content than wild-type(WT) plants, exhibits significantly reduced grain chalkiness. Higher foliar ascorbate/dehydroascorbate(Asc/DHA)ratios at 40, 60, 80, and 100 days of plant age were observed in GO-2. Further investigation showed that the enhanced level of Asc resulted in a significantly higher ribulose-1,5-bisphosphate(Ru BP) carboxylase/oxygenase(Rubisco) protein level in GO-2 at 80 days. In addition, levels of abscisic acid(ABA) and jasmonic acid(JA) were lower in GO-2 at 60, 80, and100 days. The results we present here indicate that the enhanced level of Asc is likely responsible for changing redox homeostasis in key developmental stages associated with grain filling and alters grain chalkiness in the L-Gal LDH-overexpressing transgenic by maintaining photosynthetic function and affecting phytohormones associated with grain filling. | Le Yu Yonghai Liu Jianhua Tong Junhui Ding Ruozhong Wang Changlian Peng Langtao Xiao | 2015 | The Crop Journal2015,3,2: | 4 |
| 8 | High surface area, high catalytic activity titanium dioxide aerogels prepared by solvothermal crystallization显示文摘Titanium dioxide has been considered to be one of the most effective and environmental friendly photocatalytic material.It has been widely used in photocatalytic degradation of various pollutants.As we known,an anatase crystal form typically obtained by high temperature heat treatment(>600℃),usually shows higher catalytic activity.In order to further improve the catalytic efficiency,we prepared TiO2 with a non-supercritical drying method to form a high specific surface area aerogel structure,along with an increased active contact site.However,with the inevitable of internal pores collapse in the process of high temperature crystallization,a large amount of porous structure and specific surface area is reduced.Here,to enhance the photocatalytic activity of titania,we propose a synergistic strategy to fabricate a porous titania structure with a high specific surface area.It was crystallized at a lower temperature(120℃) in a low-boiling solvent(ethanol,acetone,etc.).The lattice structure was identified by X-ray diffractometry;specific surface area(over 300 m2/g) of our sample was also measured through BET test;in the subsequent photocatalytic degradation test,the photocatalytic degradation efficiency of fabricated TiO2 is proved to be more excellent than P25 powder.By a freeze-drying/mild crystallization method,a high-specific surface area and high catalytic activity TiO2 aerogel was synthetized.This study provides some insights in the combining of crystallization and high specific surface area of titanium dioxide photocatalysis. | Xian Yue Junhui Xiang Junyong Chen Huaxin Li Yunsheng Qiu Xianbo Yu | 2020 | Journal of Materials Science & Technology2020,47,12: | 2 |
| 9 | Development of retinol-binding protein 4 immunocolloidal gold fast test strip using high-sensitivity monoclonal antibodies generated by DNA immunization显示文摘DNA 免疫是为高亲密关系的 monoclonal 抗体产生的一个有效方法。这里,我们对松香油绑定蛋白质 4 描述几高质量的 monoclonal 抗体(mAbs ) 的产生(RBP4 ) ,为肾反常和机能障碍的一个重要标记,与 DNA 的一个联合方法, priming 和蛋白质增加。产生的 mAbs 能与高敏感并且用这些 mAbs 绑在 RBP4,一块 immunocolloidal 金牌快测试长带被构造。长带能交上结果 < 5 min 并且与大约 1 ng/ml 的察觉限制是很敏感的。小规模的临床的测试表明这脱衣的结果根据在市场上当前可得到的一个标记酶的 immunosorbent 试金工具包的好。因而,它能为在诊所的更方便、更快的 RBP4 决心是有用的。 | Chao Bian Fang Zhang Feng Wang Zhiyang Ling Min Luo Hongqiang Wu Yizhuo Sun Junhui Li B ingnan Li Jingyan Zhu Linna Tang Yanyan Zhou Qunfang Shi Yongyong Ji Lin Tian Guomei Lin Yu Fan Niansong Wang Bing Sun | 2010 | Acta Biochimica et Biophysica Sinica2010,42,12: | 2 |
| 10 | Distributed Estimation of Oscillations in Power Systems: An Extended Kalman Filtering Approach显示文摘Online estimation of electromechanical oscillation parameters provides essential information to prevent system instability and blackout and helps to identify event categories and locations.We formulate the problem as a state space model and employ the extended Kalman filter to estimate oscillation frequencies and damping factors directly based on data from phasor measurement units.Due to considerations of communication burdens and privacy concerns,a fully distributed algorithm is proposed using diffusion extended Kalman filter.The effectiveness of proposed algorithms is confirmed by both simulated and real data collected during events in State Grid Jiangsu Electric Power Company. | Zhe Yu Di Shi Zhiwei Wang Qibing Zhang Junhui Huang Sen Pan | 2019 | CSEE Journal of Power and Energy Systems2019,5,2: | 2 |
| 11 | Differential effects of aging on EEG after baclofen administration显示文摘Baclofen is a selective gamma-aminobutyric acid (GABA) type B agonist that may have important medicinal uses,such as in analgesics and drug addiction treatment.In addition,evidence is accumulating that suggests GABAergic-mediated neurotransmission is altered during aging.This study investigated whether baclofen administration (5 mg kg 1) induces differential effects on cortical electrical activity with age.Electroencephalograms (EEGs) were recorded from young (3-4 months) and aged (15-17 months) rats,and both the absolute and relative powers in five frequency bands (delta:2-4 Hz;theta:4-8 Hz;alpha:8-12 Hz;beta:12-20 Hz;gamma:20-100 Hz) were analyzed.Before administration of baclofen,we found that the EEG relative power in the beta band was higher in the aged than that in the young rats.After administration of baclofen,there was a slower increase in the relative power in the delta band in the aged than that in the young rats.Moreover,there was no significant difference between the two age groups in absolute power in any frequency band.These findings indicate that baclofen treatment appears to differentially modify cortical EEG activity as a function of age.Our data further elucidate the relationship between GABA B receptor-mediated neurotransmission and aging. | FU Yu CUI JunHui MA YuanYe | 2011 | Science China(Life Sciences)2011,54,5: | 2 |
| 12 | Generation of Nb-enriched mafic rocks and associated adakitic rocks from the southeastern Central Asian Orogenic Belt:Evidence of crust-mantle interaction显示文摘Melting of subducting oceanic lithosphere and associated melt-mantle interactions in convergent plate margins require specific geodynamic environment that allows the oceanic slab to be abnormally heated.Here we focus on the Early Mesozoic mafic rocks and granite porphyry,which provide insights into slab melting processes associated with final closure of the Paleo-Asian Ocean.The granite porphyry samples are calc-alkaline and distinguished by high Sr contents,strong depletion of heavy rare earth elements,resulting in high(La/Yb);and Sr/Y ratios,and negligible Eu anomalies.Based on their high Na_(2)O and Mg O,low K_(2)O contents,positiveε_(Hf)(t)andε_(Nd)(t)and low(^(87)Sr/^(86)Sr)ivalues,we propose that the granite porphyry was likely derived from partial melting of subducting Paleo-Asian oceanic crust.The Nb-enriched mafic rocks are enriched in Rb,Th,U,Pb and K,and depleted in Nb,Ta,Ba,P and Ti,corroborating a subduction-related origin.Their heterogeneous Sr-Nd-Hf-O isotopic compositions and other geochemical features suggest that they were likely derived from partial melting of peridotitic mantle wedge interacted with oceanic slab-derived adakitic melts.Trace element and isotope modeling results and elevated zirconδ^(18)O values suggest variable subducting sediments input into the mantle wedge,dominated by terrigenous sediments.Synthesizing the widely-developed bimodal rock associations,conjugated dikes,thermal metamorphism,tectonic characteristics,paleomagnetic constraints,and paleogeographical evidence along the Solonke-Changchun suture zone,we identify a slab window triggered by slab break-off,which accounts for slab melting and formation of the Nb-enriched mafic rocks and associated adakitic granite porphyry in southeastern Central Asian Orogenic Belt. | Yan Jing Wenchun Ge M.Santosh Yu Dong Hao Yang Zheng Ji Junhui Bi Hongying Zhou Dehe Xing | 2022 | Geoscience Frontiers2022,13,2: | 2 |
| 13 | Multi-site occupancies and luminescence properties of cyan-emitting Ca_(9-x)NaGd_(2/3)(PO_(4))_(7):Eu^(2+)phosphors for white light-emitting diodes显示文摘Cyan-emitting Ca_(9)NaGd_(2/3)(PO_(4))_(7):Eu^(2+)phosphors were synthesized via high temperature solid-state route.X-ray powder diffraction(XRD)and scanning electron microscopy(SEM)were used to verify the phase and morphology of the Ca_(9)NaGd_(2/3)(PO_(4))_(7):Eu^(2+)(CNGP:Eu^(2+))phosphors.The as-obtained phosphor exhibits a broad excitation band of 250-420 nm,which is near the ultraviolet region.An intense asymmetric cyan emission at 496 nm corresponds to the 5 d-4 f transition of Eu^(2+).The multiplesite luminescent properties of Eu^(2+)ions in CNGP benefit from versatile structure ofβ-Ca3(PO4)2 compounds.The effective energy transfer distance is 5.46 nm(through the spectral overlap calculation),validating that the resonant energy migration type is via dipole-dipole interaction mechanism.Compared to the initial one at room temperature,the luminescent intensity of CNGP:Eu^(2+)phosphor can maintain 77%as it is heated up to 420 K.A white light-emitting diode(WLED)with excellent luminesce nt properties was successfully fabricated.Moreover,the CIE chromaticity coordinates of fabricated WLED driven by changing current just change slightly. | Shihua Liu Bin Deng Junhui Yang Jinhua Liu Jun Chen Fanhua Zeng Huanyou Wang Ruijin Yu Gongguo Zhang | 2022 | Journal of Rare Earths2022,40,2: | 1 |
| 14 | Artificial neural network approach to predict mechanical properties of 301 austenitic stainless steel 显示文摘 | Chen Zhiyu Zou Dening Yu Junhui | 2010 | Materials Science Forum2010,658,: | 1 |
| 15 | Biochar soil amendment increased bacterial but decreased fungal gene abundance with shifts in community structure in a slightly acid rice paddy from Southwest China显示文摘 | Junhui Chen Xiaoyu Liu Jinwei Zheng Bin Zhang Haifei Lu Zhongzhi Chi Genxing Pan Lianqing Li Jufeng Zheng Xuhui Zhang Jiafang Wang Xinyan Yu | 2013 | Applied Soil Ecology2013,,: | 1 |
| 16 | Junction plakoglobin regulates and destabilizes HIF2α to inhibit tumorigenesis of renal cell carcinoma显示文摘Background:Increased hypoxia-inducible factor 2α(HIF2α)activation is a common event in clear cell renal cell carcinoma(ccRCC)progression.However,the function and underlying mechanism of HIF2α in ccRCC remains uninvestigated.We conducted this study to access the potential link between junction plakoglobin(JUP)and HIF2αin ccRCC.Methods:Affinity purification and mass spectrometry(AP-MS)screening,glutathione-s-transferase(GST)pull-down and co-immunoprecipitation(Co-IP)assays were performed to detect the interacting proteins of HIF2α.Quantitative PCR(qPCR)and Western blotting were used to detect the expression of JUP in human ccRCC samples.Luciferase reporter assays,chromatin immunoprecipitation(ChIP),cycloheximide chase assays,and ubiquitination assays were conducted to explore the regulation of JUP on the activity of HIF2α.Cell Counting Kit-8(CCK-8)assays,colony formation assays,transwell assays,and xenograft tumor assays were performed to investigate the effect of JUP knockdown or overexpression on the tumorigenicity of renal cancer cells.Results:We identified JUP as a novel HIF2α-binding partner and revealed an important role of JUP in recruiting von Hippel-Lindau(VHL)and histone deacetylases 1/2(HDAC1/2)to HIF2α to regulate its stability and transactivation.JUP knockdown promoted and overexpression suppressed the tumorigenicity of renal cell carcinoma in vitro and in vivo.Importantly,the low expression of JUP was found in clinical ccRCC samples and correlated with enhanced hypoxia scores and poor treatment outcomes.Conclusion:Taken together,these data support a role of JUP in modulating HIF2α signaling during ccRCC progression and identify JUP as a potential therapeutic target. | Ke Chen Jin Zeng Yi Sun Wei Ouyang Gan Yu Hui Zhou Yangjun Zhang Weimin Yao Wei Xiao Junhui Hu Jinchun Xing Kefeng Xiao Lily Wu Zhiqiang Chen Zhangqun Ye Hua Xu | 2021 | Cancer Communications2021,41,4: | 1 |
| 17 | Temperature and precipitation control of the spatial variation of terrestrial ecosystem carbon exchange in the Asian region显示文摘 | Zhi Chen Guirui Yu Jianping Ge Xiaomin Sun Takashi Hirano Nobuko Saigusa Qiufeng Wang Xianjin Zhu Yiping Zhang Junhui Zhang Junhua Yan Huimin Wang Liang zhao Yanfen Wang Peili Shi Fenghua Zhao | 2013 | Agricultural and Forest Meteorology2013,,: | 1 |
| 18 | Spatial pattern of macrobenthic communities along a shelf-slope-basin transect across the Bering Sea显示文摘Due to its unique geological location, the Bering Sea is an ideal place to investigate the water exchange and ecosystem connectivity of the Pacific Ocean–Arctic Ocean and subarctic–Arctic region. Based on a number of summer surveys(July to September, 2010, 2012 and 2014), macrobenthic communities and their spatial-temporal patterns are exhibited for the majority of the Bering Sea(53°59′–64°36′N). The results show that the macrobenthic communities were dominated by northern cold-water species and immigrant eurythermic species, and the communities assumed a dispersed and patchy distribution pattern. Polychaetes(Scoloplos armiger), crustaceans(Ceradocus capensis) and sea urchins(Echinarachnius parma) were the main dominant groups in the shallow shelves; the sea star(Ctenodiscus crispatus) and the brittle star(Ophiura sarsii) were the main dominant groups in the continental slope; whereas small polychaetes(Prionospio malmgreni) dominated the basin area. Sediment type, water depth, and currents were the major factors affecting the structure and spatial distribution of the macrobenthic communities. Compared with other seas, the shallow areas of the Bering Sea showed an extremely high-standing biomass. In particular, the northern shelf area(north of St. Lawrence Islands and west of 170°W),which is primarily controlled by Anadyr Water, is an undersea oasis. In contrast, a deficiency in the downward transport of particulate organic carbon has resulted in a desert-like seabed in the basin area. By comparing our results to previous studies, we found that macrobenthic communities of the Bering Sea have undergone significant structural changes in recent decades, resulting in a decrease in abundance and an increase in biomass.In addition, populations of amphipods and bivalves in the northern shelves have decreased significantly and have been gradually replaced by other species. These changes might be associated with advanced seasonal ice melting,changes in organic carbon input, and global warming, indicating that large-scale ecosystem changes have been occurring in the Bering Sea. | LIN Heshan LIU Kun WANG Jianjun HUANG Yaqin LI Zhong LIN Junhui HE Xuebao ZHANG Shuyi MOU Jianfeng WANG Yu XING Bingpeng | 2018 | Acta Oceanologica Sinica2018,37,6: | 1 |
| 19 | Geochronology and Geochemistry of Late Devonian I- and A-Type Granites from the Xing’an Block,NE China:Implications for Slab Break-off during Subduction of the Hegenshan-Heihe Ocean显示文摘We present detailed geochronological,geochemical,and zircon Hf isotopic data for Late Paleozoic granitic rocks from Handagai and Zhonghe plutons in the Xing’an Block,NE China,aiming to provide constraints on their origin and tectonic implications.New zircon U-Pb ages indicate they were formed in the Late Devonian(ca.379 Ma) immediately after a striking 50 Ma magmatic lull(ca.430-380 Ma) in the Xing ’ an Block.Petrological and geochemical features suggest that the Handagai monzogranites and Zhonghe alkali-feldspar granites are I- and A-type granites,respectively,although both of them have high-K calc-alkaline features and positive zircon ε_(Hf)(t) values(+3.47 to +10.77).We infer that the Handagai monzogranites were produced by partial melting of juvenile basaltic crustal materials under a pressure of <8-10 kbar,whereas the Zhonghe alkali-feldspar granites were generated by partial melting of juvenile felsic crustal materials at shallower depths(P ≤ 4 kbar).Our results,together with published regional data,indicate their generation involves a subduction-related extensional setting.Slab break-off of the Hegenshan-Heihe oceanic plate may account for the subduction-related extensional setting,as well as the transformation of arc magmatism from the Early-Middle Devonian lull to the Late Devonian-Early Carboniferous flare-up in the Xing’an Block. | Zheng Ji Wenchun Ge Hao Yang Yanlong Zhang Yu Dong Junhui Bi Xiwen Liu | 2022 | Journal of Earth Science2022,33,1: | 1 |
| 20 | Geochronology and Geochemistry of Early Cretaceous Granitic Plutons in the Xing’an Massif, Great Xing’an Range, NE China: Petrogenesis and Tectonic Implications显示文摘In this study, we present zircon U-Pb ages, whole-rock geochemical data and Hf isotopic compositions for the Meiguifeng and Arxan plutons in Xing’an Massif, Great Xing’an Range, which can provide important information in deciphering both Mesozoic magmatism and tectonic evolution of NE China. The zircon U-Pb dating results indicate that alkali feldspar granite from Meiguifeng pluton was emplaced at ~145 to 137 Ma, and granite porphyry of Arxan pluton was formed at ~129 Ma. The Meiguifeng and Arxan plutons have similar geochemical features, which are characterized by high silica, total alkalis, differentiation index, with low P2O5, CaO, MgO, TFe2O3 contents. They belong to high-K calc-alkaline series, and show weakly peraluminous characteristics. The Meiguifeng and Arxan plutons are both enriched in LREEs and LILEs(e.g., Rb, Th, U and K), and depleted in HREEs and HFSEs(e.g., Nb, Ta and Ti). Combined with the petrological and geochemical features, the Meiguifeng and Arxan plutons show highly fractionated I-type granite affinity. Moreover, the Meiguifeng and Arxan plutons may share a common or similar magma source, and they were probably generated by partial melting of Neoproterozoic high-K basaltic crust. Meanwhile, plagioclase, K-feldspar, biotite, apatite, monazite, allanite and Ti-bearing phases fractionated from the magma during formation of Meiguifeng and Arxan plutons. Combined with spatial distribution and temporal evolution, we assume that the generation of Early Cretaceous Meiguifeng and Arxan plutons in Great Xing’an Range was closely related to the break-off of Mudanjiang oceanic plate. Furthermore, the Mudanjiang Ocean was probably a branch of Paleo-Pacific Ocean. | DONG Yu GE Wenchun TIAN Dexin JI Zheng YANG Hao BI Junhui WU Haoran HAO Yujie | 2019 | Acta Geologica Sinica(English Edition)2019,93,5: | 1 |