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Geochemistry,geochronology,and zircon Hf isotopic compositions of felsite porphyry in Xiangshan uranium orefield and its geological implication

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Acta Geochimica 2021年第5期40卷 773-786页

作者： Mingming Tian ziying Li Jiangtao Nie Jun Zhong Jian Wang Jianhui Cao Beijing Research Institute of Uranium Geology Beijing 100029China

Recently,a new kind of volcanic rock,felsite porphyry,has been revealed by drilling in Xiangshan area,Jiangxi Province,*** better understand petrogenesis and magmatic evolution sequence of the Xiangshan volcanic-intrusive complex,we studied systematic petrology,geochemistry,LA-ICP-MS zircon U–Pb dating,and Hf isotope results of the felsite *** show that the felsite porphyry has similar geochemical characteristics to the porphyroclastic rhyolite,which is the predominant lithology of Xiangshan uranium *** porphyry and porphyroclastic rhyolite have high SiO2,Al2O3,and K2O contents,low Na2O,and MgO contents,and slightly negative Eu ***,these rocks are relatively depleted in large ion lithophile elements(K,Ba,and Sr)and are enriched in high field strength elements(Th,Zr,and Hf).LA-ICP-MS zircon U–Pb dating of the felsite porphyry yielded a crystallization age of 132.2±0.9 Ma,which is coeval to that of the porphyroclastic *** ages signified that Xiangshan volcanic-intrusive complex formed in the Early Cretaceous,during which the entire South China was in the back-arc extension tectonic setting related to the subduction of the Pacific Plate under the Euroasian ***-situ zircon Hf isotope data on a felsite porphyry sample show eHf(t)values from-8.82 to-5.11,while the Hf isotope two-stage model age(TDM2-Hf)ranges from 1513 to 1747 *** with petrological,mineralogical,geochemistry,and geochronology results of the felsite porphyry,it is concluded that the felsite porphyry in Xiangshan might be originated from the partial melting of the Mesoproterozoic ancient metamorphic rocks,with possible input of small amounts of mantle materials.

关键词： Petrogeochemistry LA-ICP-MS zircon U-Pb age Hf isotope Felsite porphyry Xiangshan uranium orefield

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Paleo-uplift forced regional sedimentary evolution:A case study of the Late Triassic in the southeastern Sichuan Basin,South China

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Petroleum 2024年第3期10卷 462-473页

作者： Fangyu He Qingsong Cheng Dongtao Zhang Yubing Ji ziying Wang Tenghui Lu PetroChina Zhejiang Oilfield Company Hangzhou 310023China School of Geoscience and Technology Southwest Petroleum UniversityChengdu610500China Sichuan Natural Gas Geology Key Laboratory Southwest Petroleum UniversityChengdu610500China

The sedimentary environment of the Upper Triassic in the southeastern Sichuan Basin is obviously controlled by Luzhou paleo-uplift(LPU).However,the influence of paleo-uplift on the sedimentary patterns of the initial stages of this period in the southeastern Sichuan Basin has not yet been clear,which has plagued oil and gas exploration and *** study shows that there is a marine sedimentary sequence,which is considered to be the first member of Xujiahe Formation(T_(3)X^(1))in the southeastern Sichuan *** development of LPU resulted in the sedimentary differences between the eastern and western Sichuan Basin recording T_(3)X^(1)and controlled the regional sedimentary *** western part is dominated by marine sediments,but the eastern paleo-uplift area is dominated by continental sedimentation in the early stage of T_(3)X^(1),and it begins to transform into a marine sedimentary environment consistent with the whole basin in the late stage of the period recorded by the Xujiahe *** evidences are as follows:(1)time series:based on the cyclostratigraphy analysis of Xindianzi section and Well D2,in the southeastern Sichuan Basin,the period of sedimentation of the Xujiahe Formation is about 5.9 Ma,which is basically consistent with the Qilixia section,eastern Sichuan basin,where the Xujiahe Formation is widely considered to be relatively complete;(2)distribution and evolution of palaeobiology:based on analysis of abundance evolution of major spore-pollen,many land plant fossils are preserved in the lower part of T_(3)X^(1),indicates the sedimentary environment of continental *** the upper part of T_(3)X^(1),the fossil of terrestrial plants decreased,while the fossil of marine and tidal environment appeared,this means that it was affected by the sea water in the late stages of T_(3)X^(1);(3)geochemistry:calculate the salinity of water from element indicates that the uplift area is continental sedimentary environment in the early stage

关键词： Luzhou paleo-uplift Late Triassic Cyclostratigraphy Palynology Sedimentary environment

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Petrogenesis and Tectonic Implications of the Jabal Hadb Ad Dayheen Granitic Complex, Central Arabian Shield

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Journal of Earth Science 2023年第1期34卷 20-36页

作者： Qinlong Tong ziying Li Honghai Fan Naser Jahdali Mubarak M.Al-Nahdi CNNC Beijing Research Institute of Uranium Geology National Key Laboratory of Remote Sensing Information and Image Analysis TechnologyBeijing100029China CNNC Key Laboratory of Uranium Resource Exploration and Evaluation Technology Beijing Research Institute of Uranium GeologyBeijing100029China Saudi Geological Survey Jeddah21514Kingdom of Saudi Arabia

The Jabal Hadb Ad Dayheen granitic complex in central Saudi Arabia is an alkaline granitic ring complex associated with a collapsed caldera. It mainly consists of monzogranite in the center, biotite-hornblende porphyritic granite, and biotite-aegirine-riebeckite granite, intruded by some felsic and mafic dikes. The petrological and geochemical characteristics show that the granitic suites consist of metalminous-peralkaline A-type granites. The secondary ion mass spectrometry(SIMS) zircon U-Pb analysis yielded ^(206)Pb/^(238)U ages of 613.3 ± 8.1 – 603.8 ± 3.8, 602.4 ± 3.8, 596 ± 5.6 Ma for biotitehornblende porphyritic granite, microgranite, and biotite-aegirine-riebeckite granite, respectively. The trace element characteristics and positive ε_(Hf)(t) values(3.2–12.2) indicate that the granitic rocks of the Dayheen Ring Complex are mainly derived from the juvenile crust with the involvement of mantlederived materials. Combined with the regional tectonic evolution, the formation of the Dayheen Ring Complex mainly covered four periods:(1) subduction initiation and formation of arc terranes(870–620 Ma)—volcanic craters formed during this period provided the channel for alkaline complex intrusion;(2) collision between East and West Gondwana continents and formation of the north East African Orogen(640–613 Ma)—monzogranite stock at the center of the ring complex emplaced during this period;(3) post-collision extension and collapse(613–602 Ma)—red metaluminous biotite-hornblende porphyritic granite and microgranite sheets in the rim of the Dayheen Ring Complex emplaced during this period;(4) within-plate extension(602 – 545 Ma) —white peralkaline biotite-aegirine-riebeckite granite and plenty of felsic and mafic dikes in the rim mainly formed during this period. The granitic rocks of the Dayheen Ring Complex mainly formed during the transitional stage of post-collison to within-plate extension after the collision between East and West Gondwana continents, and part of them

关键词： ring complex A-type granite zircon zircon U-Pb dating tectonic evolution Arabian Shield

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Genome-Wide Identification and Expression Analysis of the GSK3 Gene Family in Sunflower under Various Abiotic Stresses

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Phyton-International Journal of Experimental Botany 2024年第8期93卷 1839-1850页

作者： Xianwen Ji ziying Jiang Jichao Wang Lili Dong Xinyi Deng Department of Ornamental Horticulture Anhui Agricultural UniversityHefei230061China

Genes in the glycogen synthase kinase 3(GSK3)family are essential in regulating plant response to stressful *** study employed bioinformatics to uncover the GSK3 gene family from the sunflower genome *** expressions of GSK3 genes in different tissues and stress treatments,such as salt,drought,and cold,were assessed using transcriptome sequencing and quantitative real-time PCR(qRT-PCR).The study results revealed that the 12 GSK3 genes of sunflower,belonging to four classes(Classes I–IV),contained the GSK3 kinase domain and 11–13 *** majority of GSK3 genes were highly expressed in the leaf axil and flower,while their expression levels were relatively lower in the *** a result of salt stress,six of the GSK3 genes(HaSK11,HaSK22,HaSK23,HaSK32,HaSK33,and HaSK41)displayed a notable increase in expression,while HaSK14 and HaSK21 experienced a significant *** regard to drought stress,five of the GSK3 genes(HaSK11,HaSK13,HaSK21,HaSK22,and HaSK33)experienced a remarkable rise in *** exposed to cold stress,seven of the GSK3 genes(HaSK11,HaSK12,HaSK13,HaSK32,HaSK33,HaSK41,and HaSK42)showed a substantial increase,whereas HaSK21 and HaSK23 had a sharp *** research is of great importance in understanding the abiotic resistance mechanism of sunflowers and developing new varieties with improved stress resistance.

关键词： Sunflower abiotic stress GSK expression analysis

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Uranium Metallogenic Regionalization and Resource Potential in China

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Acta Geologica Sinica(English Edition) 2012年第3期86卷 547-554页

作者： LI ziying ZHANG Jindai JIAN Xiaofei CAI Yuqi GUO Qingyin ZHU Pengfei BeijingResearch Institute of Uranium Geology Beijing 100029China Bureau of Geology China National Nuclear Corporation(CNNC)Beijing 100013China

This paper is comprehensively involved in main types of uranium deposits and their general metallogenic characteristics, metallogenic fields, provinces, regions and belts, and uranium resources potential evaluation. Generally speaking, there are favorable conditions and good uranium resources potential for uranium mineralization in China.

关键词： Uranium deposit type metallogenic characteristics metallogenic regionalization uranium resource potential

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睫状肌麻痹对成人散光的影响

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临床眼科杂志 2022年第2期30卷 97-101页

作者：李文涛赵峰陈英陈彦霓高稳生杨子颖钟丽爱魏丽云张润妹廖锐惠州市第三人民医院眼科 516002 眼科学国家重点实验室中山大学中山眼科中心 516060 汉口爱尔眼科医院眼科 430000

目的通过比较睫状肌麻痹前后散光度数及其矢量成分的变化,探讨睫状肌麻痹对散光的影响。方法横断面研究。随机选取2018年5月至2020年1月在惠州市第三人民医院视光专科就诊并同意参加本研究的成人近视患者261例(18~48岁),对其进行眼轴、... 详细信息

目的通过比较睫状肌麻痹前后散光度数及其矢量成分的变化,探讨睫状肌麻痹对散光的影响。方法横断面研究。随机选取2018年5月至2020年1月在惠州市第三人民医院视光专科就诊并同意参加本研究的成人近视患者261例(18~48岁),对其进行眼轴、小瞳综合验光、睫状肌麻痹下(复方托吡卡胺滴眼液)综合验光仪主觉验光检查。收集被检者年龄、性别、眼轴、睫状肌麻痹前后屈光度数,并采用配对t检验对睫状肌麻痹前后散光度数及各矢量变化进行分析。每例均取右眼进行统计分析。结果所有被检的261例均完成本研究。睫状肌麻痹后,等效球镜度数减少了(0.37±0.47)D(P<0.05)。在本研究中睫状肌麻痹前后柱镜度数≥0.25 D的人数为243例,占93.1%。散光类型以顺规散光为主,其后依次为斜轴散光、逆规散光。睫状肌麻痹后高度散光比例稍有增加,从37.13%增加到40.33%,同时高度散光组中顺规散光比例从71.13%增加到了77.55%。但是睫状肌麻痹前后,散光度数及各矢量成分的变化均无统计学意义。结论对成人近视患者而言,散光检出率高,且以顺规散光为主。睫状肌麻痹可降低等效球镜度数,但对散光度数及各矢量成分影响并不明显。

关键词：成人散光睫状肌麻痹综合验光仪主觉验光

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Long-term trends in fog and boundary layer characteristics in Tianjin,China

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Particuology 2015年第3期13卷 61-68页

作者： Suqin Han ziying Cai Yufen Zhang Jiao Wang Qing Yao Peiyan Li Xiangjin Li Tianjin Institute of Meteorological Science State Environmental Protection Key Laboratory of Urban Ambient Air Particulate Matter Pollution Prevention and Control College of Environmental Science and EngineeringNankai University

Long-term trends in fog episodes, vertical variations of atmospheric boundary structure, and air pollutant concentrations during two different heavy fog events in the Tianjin area were analyzed. The total amount of fog has increased since 1980 due to the stability of the boundary layer and an increase of pollutant emissions. The variation in the characteristics of the boundary layer and air pollutant concentrations were significantly different between the two fog processes （fog I and fog ll）. The onset of fog I was accompanied by a temperature inversion in the low atmosphere, and the average kinetic energy showed a clear diurnal trend and vertical variation, which increased with height. The dissipation of fog I was mainly due to turbulence. However, the atmospheric stratification was not stable in the lower layer before the onset of fog If. The diurnal and vertical changes in kinetic energy were very small, in which turbulent momentum at each measurement height tended to be zero. In the dissipation process of fogⅡ, wind speed increased significantly. Surface PM2.s concentrations decreased, but the ratio of PMzs to PM10 increased from 0.66 to 0.82 until fog I dissipated. However, the concentration of PMzs did not decrease at the early stage of fog Ⅱ, but the ratio of PM2.5 to PM10 PM2.5JPM10 decreased to 0.21 when fog Ⅱ dissipated. This study showed that there was a clear difference in the evolution of pollutant concentration for different pollutants and in different developing stages during the fog events. PM2.5 concentration accumulated faster than those of SO2 and NOx, and the PM2.5 cumulative rate was greater in the mid-term of the fog process.

关键词： TianjinFogLong-term trendBoundary layer structureParticulate matterAir pollutant

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Platelet-rich plasma combined with injectable hyaluronic acid hydrogel for porcine cartilage regeneration: a 6-month follow-up

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Regenerative Biomaterials 2020年第1期7卷 77-90页

作者： Wenqiang Yan Xingquan Xu Qian Xu ziying Sun Qing Jiang Dongquan Shi State Key Laboratory of Pharmaceutical Biotechnology Department of Sports Medicine and Adult Reconstructive SurgeryNanjing Drum Tower HospitalThe Affiliated Hospital of Nanjing University Medical School321 Zhongshan RoadNanjing 210008JiangsuChina Laboratory for Bone and Joint Disease Model Animal Research Center(MARC)Nanjing UniversityNanjing 210093JiangsuChina

Based on our previous study,the utilization of an ultraviolet light photo-cross-linkable hyaluronic acid(HA)hydrogel integrated with a small molecule kartogenin-encapsulated nanoparticles obtained good reconstruction of osteochondral defects in a rabbit model,indicating the superiority of injectable hydrogel-based scaffolds in cartilage tissue ***-rich plasma(PRP),rich in various growth factors,proteins and cytokines,is considered to facilitate cartilage healing by stimulating cell proliferation and inducing chondrogenesis in cartilage defect *** aim of this study was to test the therapeutic feasibility of autologous PRP combined with injectable HA hydrogel on cartilage *** focal cartilage defects with different critical sizes in the medial femoral condyle of a porcine model were *** 6 months,the minipigs were sacrificed for assessment of macroscopic appearance,magnetic resonance imaging,micro-computed tomography,histology staining and *** HA hydrogel combined with PRP-treated group showed more hyaline-like cartilage exhibited by macroscopic appearance and histological staining in terms of extracellular matrix and type II collagen without formation of hypertrophic cartilage,indicating its capacity to improve cartilage healing in the minipig model evaluated at 6 months,with full-thickness cartilage defect of 8.5mm diameter and osteochondral defect of 6.5mm diameter,5mm depth exhibiting apparent regeneration.

关键词： platelet-rich plasma hyaluronic acid hydrogel cartilage repair regenerative medicine

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A New Technique for Calculating Oxygen Fugacity of a Magma Using Uraninite in Granites

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Acta Geologica Sinica(English Edition) 2021年第2期95卷 708-709页

作者： GUO Jian LI ziying HUANG Zhizhang LI Xiuzhen ZHANG Yuyan FAN Chou Beijing Research Institute of Uranium Geology Beijing 100029China Key Laboratory of Uranium Resource Exploration and Evaluation Technology Chinese National Nuclear CorporationBeijingChina South-Central University for Nationalities Wuhan 430074HubeiChina

Objective Oxygen fugacity is an important physicochemical parameter of magmas in addition to temperature,pressure and elemental concentrations,representing a major research topic in natural and experimental *** from oxygen probe work,where a direct measurement is made using an oxygen sensor to detect the oxygen content in the fluid and molten metal.

关键词： Oxygen Magma representing

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How urbanization affect the ecosystem health of Tibet based on terrain gradients:a case study of Shannan,China

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Ecosystem Health and Sustainability 2022年第1期8卷 451-462页

作者： Ji Zhang Yu Shi Chaofan Xian Lu Zhang ziying Zou School of Geographic Sciences Hunan Normal UniversityChangshaHunanChina Organization Department Shannan Municipal Committee of the CPCShannanTibetChina College of the Life and Environmental Science Minzu University of ChinaBeijingChina State Key Laboratory of Urban and Regional Ecology Research Center for Eco-Environmental SciencesChinese Academy of SciencesBeijingChina

Urbanization has significant impacts on ecosystem health(ESH)by affecting land-use *** evaluation of the ESH and the spatial correlations between human interference provides an insight into sustainable development as a response to potential ecological degradation if ESH is threatened by further *** applied the Vigor-Organization-Resilience-Services(VORS)modelto detect the responses of ESH of Shannan Prefecture in the Tibet to urbanization from 1990 to 2015,based on different levels of terrain *** results show that the ESH of the most areas in Shannan reaches the levels of highest health and average health during the study *** 2015,the area proportion at the highest health level increased by 0.68%,while that of degraded level decreased by 1.51%.Overall,the ESH of areas tends to shrink at higher-level TGs,and urban sprawl with ESH shrinking existed in middle-level TGs in ***,a significant spatial aggregation effect was found concerning that low ESH-high CUL type is mainly distributed on the middle-level TGs with dense human *** results highlight the needs to rationally organize urbanization process in plateau regions based on different TGs,which contribute to maintain ESH advancing people livelihood improvement.

关键词： Ecosystem health terrain gradient urbanization spatial correlation Shannan

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