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Chinese Journal Of Geochemistry 2009年第4期28卷 445-448页

作者： wu chengzhi LIU Guoming WANG Pan Changbaishan Volcano Observatory Antu 133613 China College of Resources and Safety Engmeertng China University of Mining and Technology Beijing 100083 China

The authors reviewed the history of geochemistry involved in active volcano monitoring and analyzed the relationship between variations in volcanic gas composition observed at the Changbaishan Volcano Observatory and volcanic activities. It is concluded that both geochemical method and routine gas analysis can provide the information about volcanic activity and earthquake activity, and both of them can play an important role in predicting volcano eruption.

关键词：火山气体活火山长白山地区地球化学方法应用温泉中国东北

Filling Pattern of Volcanostratigraphy of Cenozoic Volcanic Rocks in the Changbaishan Area and Possible Future Eruptions

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Acta Geologica Sinica(English Edition) 2017年第5期91卷 1717-1732页

作者： TANG Huafeng KONG Tan wu chengzhi WANG Pujun PENG Xu GAO Youfeng College of Earth Sciences Jilin University Changchun 130061 Jilin China Changbaishan Volcano Observatory Antu 133600 Jilin China

The Cenozoic volcanostratigraphy in the Changbaishan area had complex building ***-two eruption periods have been determined from the Wangtian＇e, Touxi, and Changbaishan volcanoes. The complex volcanostratigraphy of the Changbaishan area can be divided into four types of filling patterns from bottom to top. They are lava flows filling in valleys（LFFV）, lava flows filling in platform（LFFP）, lava flows formed the cone（LFFC）, and pyroclastic Flow filling in crater or valleys（PFFC/V）. LFFV has been divided into four layers and terminates as a lateral overlap. The topography of LFFV, which is controlled by the landform, is lens shaped with a wide flat top and narrow *** has been divided into three layers and terminates as a lateral downlap. The topography of LFFP is sheet and tabular shaped with a narrow top and wide bottom. It has large width to thickness ratio. It was built by multiple eruptive centers distributed along the fissure. The topography of LFFC, which is located above the LFFP, has a hummocky shape with a narrow sloping top and a wide flat bottom. It terminates as a later downlap or backstepping. It has large width to thickness ratio. It was built by a single eruptive center. The topography of PFFC/V, which located above the LFFC, LFFP, or valley, has the shape of fan and terminates as a lateral downlap or overlap. It has a small width to thickness ratio and was built by a single eruptive center. The filling pattern is controlled by temperature, SiO_2 content,volatile content, magma volume, and the paleolandform. In the short term, the eruptive production of the Changbaishan area is comenditic ash or pumice of a Plinian type eruption. The eruptive volume in future should be smaller than that of the Baguamiao period, and the filling pattern should be PFFC/V,which may cause huge damage to adjacent areas.

关键词： Volcanostratigraphy,filling pattern,formation mechanism,prediction of volcanic eruption Changbaishan

Apatite Geochemical and Nd Isotopic Insights into Trachyte Petrogenesis in the Tianchi Volcanic Area of Changbai Mountain,NE China

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Acta Geologica Sinica(English Edition) 2023年第6期97卷 1671-1682页

作者： XU Zhitao SUN Liying LI Mengmeng LI Zhongwei wu chengzhi QI Wei LIU Hongyan Institute of Volcanology China Earthquake AdministrationChangchun 130117China Jilin Province Earthquake Risk Prevention and Control Center Changchun 130117China Jilin Earthquake Agency Changchun 130117China Changbai Mountain Tianchi Volcano Observatory AntuJilin 133613China Longgang Volcano Observatory FusongJilin 134528China

We report the oxide,element geochemistry and Nd isotopic geochemical data of apatite in the middle Pleistocene medium-and fine-grained trachyte in the Tianchi volcanic area(TVA)of Changbai Mountain,discussing the relationship between apatite and the composition of the whole *** purpose is to use the apatite geochemical data to constrain the evolutionary process of trachytic magma and the petrogenesis of trachyte in the cone-forming period of the Tianchi ***(Ca_(5)(PO_(4))_(3)(OH,F,Cl))is a common accessory mineral that occurs widely in volcanic rocks in the *** apatites in the trachyte are mainly subhedral-anhedral,having the characteristics of magmatic *** terms of oxide and element geochemistry,they have homogeneous Al_(2)O_(3),SiO_(2),MgO,P_(2)O_(5),K_(2)O,CaO and heterogeneous TiO2,with high F *** are generally enriched in Th,U and LREEs,depleted in Nb,Ta,Zr,Hf and HFSEs,showing negative Ba,Sr and Ti anomalies,similar to those of the whole-rock host *** ratios of high(La/Yb)_(N),low δEu(Eu/Eu*),Sr/Y value and ΣREE content in apatite,and the F,Sr,Y,Th/U,La/Sm,and Nd/Tb with ΣREE andδEu anomalies showed a linear correlation,all of those indicating that the host magma has the characteristic of high *** apatite grains generally having ^(147)Sm/^(144)Nd,^(143)Nd/^(144)Nd ratios and ε_(Nd)(t)values of 0.1072-0.1195,0.5123-0.5126 and -3.49 to -0.10,respectively,are similiar to those of the host *** Nd model ages TDM1 are 949-803 Ma in *** with theεNd(t)value of the apatite core(-7.06 to-3.49),we conclude that the initial magma of the host trachyte was derived from the partial melting of Proterozoic crustal material and there was an assimilation of wall rocks during its evolution.

关键词： trachyte apatite geochemistry Nd isotope Tianchi volcanic area

Modeling the multi-level plumbing system of the Changbaishan caldera from geochemical, mineralogical, Sr-Nd isotopic and integrated geophysical data

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Geoscience Frontiers 2021年第5期12卷 17-36页

作者： Jian Yi Pujun Wang Xuanlong Shan Guido Ventura chengzhi wu Jiannan Guo Pencheng Liu Jiahui Li College of Earth Science Jilin UniversityJianshe Street 2199Changchun 130061China Key Laboratory for Evolution of Past Life and Environment in Northeast Asia(Jilin University) Ministry of EducationChangchun 130026China Istituto Nazionale di Geofisica e Vulcanologia Via di Vigna Murata605Roma 00143Italy Istituto per lo Studio degli impatti Antropici e Sostenibilitàin ambiente marino(IAS) Capo Granitola(TP)91021Italy Changbai Mountain Tianchi Volcano Observatory Chibei DistrictAntu 133613China

Changbaishan,an intraplate volcano,is characterized by an approximately 6 km wide summit caldera and last erupted in *** experienced a period of unrest between 2002 and *** activity developed in three main stages,including shield volcano(basalts),cone-construction(trachyandesites to trachytes with minor basalts),and caldera-forming stages(trachytes to comendites).This last stage is associated with one of the more energetic eruptions of the last millennium on Earth,the 946 CE,VEI 7 Millennium Eruption(ME),which emitted over 100 km^(3) of *** to other active calderas,the plumbing system of Changbaishan and its evolution mechanisms remain poorly ***,we merge new whole-rock,glass,mineral,isotopic,and geobarometry data with geophysical data and present a model of the plumbing *** results show that the volcano is characterized by at least three main magma reservoirs at different depths:a basaltic reservoir at the Moho/lower crust depth,an intermediate reservoir at 10-15 km depth,and a shallower reservoir at 0.5-3 km *** shallower reservoir was involved in the ME eruption,which was triggered by a fresh trachytic melt entering a shallower reservoir where a comenditic magma was *** trachytes and comendites originate from fractional crystallization processes and minor assimilation of upper crust material,while the less evolved melts assimilate lower crust ***-eruptive magma mingling occurred during the ME eruption *** magma reservoirs of the caldera-forming stage partly reactivate those of the cone-construction *** depth of the magma storage zones is controlled by the layering of the *** plumbing system of Changbaishan is vertically extensive,with crystal mush reservoirs renewed by the replenishment of new trachytic to trachyandesitic magma from *** other volcanoes,evidence of a basaltic recharge is *** interpretation of the signals preceding possible future erupt

关键词： Changbaishan volcano Caldera Plumbing system Triggering mechanism Storage depth

A supplementary assessment system of AQI-V for comprehensive management and control of air quality in chemical industrial parks

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Journal of Environmental Sciences 2023年第8期130卷 114-125页

作者： Qiaoli Wang Dongping Sheng chengzhi wu Deji Jing Nana Cheng Xingnong Cai Sujing Li Jingkai Zhao Wei Li Jianmeng Chen College of Environment Zhejiang University of TechnologyHangzhou 310032China Key Laboratory of Biomass Chemical Engineering of the Ministry of Education Institute of Industrial Ecology and EnvironmentCollege of Chemical and Biological EngineeringZhejiang University(Yuquan Campus)Hangzhou 310027China Trinity Consultants Inc.(China office)Hangzhou 310012China Zhejiang Ocean University ZhoushanZhejiang Province 316022China

Volatile organic compounds(VOCs)are the dominant pollutants in industrial ***,they are not generally considered as part of the air quality index(AQI)system,which leads to a biased assessment of pollution in industrial *** this study,a supplementary assessment system of AQI-V was established by analyzing VOCs characteristics with vehicle-mounted PTR-TOFMS instrument,correlation analysis and the standards *** hourly and daily scenarios were considered,and the hierarchical parameter setting was further optimized by field *** hourly and daily assessments revealed the evaluation factors for the discriminability of different air quality levels,practiced value for regional air quality improvement,and the reservation of general dominant ***,the universality testing in ZPIP successfully recognized most of the peaks,with 54.76%,38.39%and 6.85%for O_(3),VOCs and NO_(2) as the dominant pollutant,and reflected the daily ambient air quality condition,togetherwith the dominant *** AQI-V systemwith VOCs sub-index is essential for air quality evaluation in industrial parks,which can further provide scientific support to control the pollution of VOCs and the secondary pollutant,therefore significantly improve the air quality in local industrial parks.

关键词： Air quality index Industrial parks,VOCs sub-index AQI-V system Scenario analysis

Mapk7 deletion in chondrocytes causes vertebral defects by reducing MEF2C/PTEN/AKT signaling

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Genes & Diseases 2024年第2期11卷 964-977页

作者： chengzhi wu Hengyu Liu Dongmei Zhong Xiaoming Yang Zhiheng Liao Yuyu Chen Shun Zhang Deying Su Baolin Zhang Chuan Li Liru Tian Caixia Xu Peiqiang Su Guangdong Provincial Key Laboratory of Orthopedics and Traumatology Department of Spine SurgeryThe First Affiliated Hospital of Sun Yat-sen UniversityGuangzhouGuangdong 510080China Research Center for Translational Medicine The First Affiliated Hospital of Sun Yat-sen UniversityGuangzhouGuangdong 510080China Precision Medicine Institute The First Affiliated Hospital of Sun Yat-sen UniversityGuangzhouGuangdong 510080China Department of Orthopedics Renmin Hospital of Wuhan UniversityWuhanHubei 430060China Guangdong Provincial Key Laboratory of Proteomics and State Key Laboratory of Organ Failure Research School of Basic Medical SciencesSouthern Medical UniversityGuangzhouGuangdong 510515China

Mutation of the MAPK7 gene was related to human ***7 regulated the development of limb bones and skulls in ***,the role of MAPK7 in vertebral development is still *** this study,we constructed Col2a1-cre;Mapk7 f/f transgenic mouse model to delete Mapk7 in cartilage,which displayed kyphosis and ***,Mapk7 loss decreased MEF2C expression and thus activated PTEN to oppose PI3K/AKT signaling in vertebral growth plate chondrocytes,which impaired chondrocyte hypertrophy and attenuated vertebral *** vivo,systemic pharmacological activation of AKT rescued impaired chondrocyte hypertrophy and alleviated mouse vertebral defects caused by Mapk7 *** study firstly clarified the mechanism by which MAPK7 was involved in vertebral development,which might contribute to understanding the pathology of spinal deformity and provide a basis for the treatment of developmental disorders of the spine.

关键词： Chondrocyte hypertrophy Growth plate Kyphosis MAPK7 MEF2C Osteopenia PI3K/AKT PTEN

Recent Geochemical Variation of the Hot-Spring Gases from the Tianchi Volcano, Changbai Mountains, Northeast China

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Earthquake Research in China 2007年第2期21卷 179-188页

作者： Gao Ling Wei Haiquan Shangguan Zhiguan wu chengzhi Earthquake Administration of Beijing Municipality Beijing 100080 China Institute of Geology China Earthquake Administration Beijing 100029 China Tianchi Volcano Observatory （TVO） of Changbaishan .lilin Antu 133613 China

Recent fluid monitoring work shows that the contents of mantle-derived CO2, He and CH4 increased anomalously in 2002 and 2003. The ^3He/^4He ratio of the deep-fault-type Jinjiang hot springs increased highly anomalously in 2003, and then decreased in 2004. The ^3He/^4He ratio from the thermal-reservoir-type Changbaijulong hot springs increased slowly in 2003, and the increase continued in 2004. The mantle-derived He content of the He released from the Changbaijulong springs increased obviously in 2004. The anomaly of the released gases and the isotopic He was consistent with the trends of seismic activities in the Tianchi volcanic area between 2002 and 2004. The abnormal release of the Jinjiang hot springs apparently decreased after the seismic activities ceased in the second half of 2004, while the abnormal release from the Changbaljulong increased significantly after these seismic activities. It shows that the abnormal release of magmas-derived gases from the thermal-reservoir-type springs lags behind that of the deep-fault-type springs. These characteristics may be of great significance for identifying deep magmatic activity and predicting volcanic earthquakes in the future.

关键词： Changbaishan Tianchi Volcano Volcanic earthquake Gas geochemistry

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中国休眠火山区岩浆来源气体地球化学特征

岩石学报 2008年第11期24卷 2638-2646页

作者：上官志冠武成智中国地震局地质研究所北京100029 吉林省长白山天池火山监测站安图133613

中国休眠火山区岩浆来源气体的最主要成分是 CO_2,含量占80%～99%;其它气体组分还有 CH_4、He、H_2、N_2、Ar、O_2、H_2S、SO_2、CO 等,其中 CH_4和 He 是 CO_2以外最值得重视的直接来自地幔岩浆体的气体组分。He 的同位素组成(~3He/~4H... 详细信息

中国休眠火山区岩浆来源气体的最主要成分是 CO_2,含量占80%～99%;其它气体组分还有 CH_4、He、H_2、N_2、Ar、O_2、H_2S、SO_2、CO 等,其中 CH_4和 He 是 CO_2以外最值得重视的直接来自地幔岩浆体的气体组分。He 的同位素组成(~3He/~4He比值)是休眠火山区最可靠的幔源物质的指示性参数;岩浆来源的 CO_2和 CH_4也具有特征的区别于浅源气体的稳定同位素组成(δ^(13)C 值)。长白山火山区近期 CO_2和 CH_4的碳同位素分馏监测结果显示,2002年汪清7.2级深震虽然可能引发了深部岩浆的局部扰动,但是它可能并没有产生特别大量的、持续不断的上地幔岩浆物质流的上升迁移。这意味着,长白山天池火山区近期可能没有火山喷发活动的现实危险。

关键词：中国休眠火山岩浆来源气体气体地球化学特征

双搅拌釜中半胱氨酸亚铁溶液吸收NO的传质-反应动力学

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化工学报 2005年第10期56卷 1843-1848页

作者：李伟吴成志马碧瑶施耀浙江大学环境工程研究所浙江杭州310027

以半胱氨酸亚铁络合物Fe(Ⅱ)(CyS)2作为吸收剂,在双搅拌釜内探讨了NO吸收反应动力学.实验结果表明:在pH=8·0,T=323K实验条件下,半胱氨酸亚铁溶液吸收NO气体为快速拟一级反应,得到二级反应速率常数k2=1·18×105m3·mol-1·s-1.3种理论... 详细信息

以半胱氨酸亚铁络合物Fe(Ⅱ)(CyS)2作为吸收剂,在双搅拌釜内探讨了NO吸收反应动力学.实验结果表明:在pH=8·0,T=323K实验条件下,半胱氨酸亚铁溶液吸收NO气体为快速拟一级反应,得到二级反应速率常数k2=1·18×105m3·mol-1·s-1.3种理论模型即膜模型、Danckwerts表面更新模型、Higbie渗透模型应用于该拟一级反应,增强因子的计算结果是相同的.实验获得的增强因子与模型计算值吻合较好,最大相对偏差不超过13%.

关键词：半胱氨酸亚铁一氧化氮传质一反应动力学双搅拌釜

中朝边境天池破火山口湖底地形多波束测深探测

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岩石学报 2018年第1期34卷 185-193页

作者：杨清福原晓军武成智盘晓东张羽吉林省地震局长春130117 青岛海洋地质工程勘察院青岛266071 长白山火山监测站安图133613

为调查天池破火山口湖的基本参数和湖底地形特征,研究破火山口的内部构造、破火山口的组合样式和垮塌堆积分布,本文采用多波束测深方法,对天池湖底地形进行了探测。探测结果显示:天池最大水深值为373.2m,天池水域边界实测周长为13.44km... 详细信息

为调查天池破火山口湖的基本参数和湖底地形特征,研究破火山口的内部构造、破火山口的组合样式和垮塌堆积分布,本文采用多波束测深方法,对天池湖底地形进行了探测。探测结果显示:天池最大水深值为373.2m,天池水域边界实测周长为13.44km,天池湖水面面积9.4km^2,天池总蓄水量约为19.88×10~8m^3。天池周边分布4个温泉,温度为7~47℃。根据湖底地形推断,现今的天池破火山口形成于千年大喷发。其后,在天池西侧形成一个喷火口,东侧形成一个熔岩丘。天池湖底存在5个较大的破火山口内壁垮塌堆积区,但在湖底未见熔岩流。天池边缘出露的温泉点对应环状断裂,同时反映深部存在岩浆体。

关键词：多波束测深探测湖水体积湖底地形破火山口构造温泉温度垮塌堆积天池