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Explanation for peat-forming environments of coal seam 2 and 9-2based on the maceral composition and aromatic compounds in the Xingtai coalfield,China 认领 引用 被引量：2
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作者 SUN Yu-zhuang QIN Shen-jun +2 位作者 LI Yan-heng LIN Ming-yue DING Shu-li 《Journal of Coal Science & Engineering(China)》 2009年第1期16-23,共8页
Maceral composition and aromatic compounds were determined on columnsamples to study the peat-forming environments of Permian coal seam 2 and Carboniferouscoal seam 9-2 from the Xingtai coalfield,China.The macerals... Maceral composition and aromatic compounds were determined on columnsamples to study the peat-forming environments of Permian coal seam 2 and Carboniferouscoal seam 9-2 from the Xingtai coalfield,China.The macerals were dominated by inertinitein seam 2 and by vitrinite in seam 9-2.Three maceral groups were selected as indicatorsof peat-forming environments.Two triangle diagrams were drawn based on the indicatorsto explicate the peat-forming environments of permian seam 2 and Carboniferousseam 9-2.The results indicate that the peat of carboniferous seam 9-2 formed dominantlyin wet swamps,whereas the peat of Permian seam 2 formed dominantly in dry swampsand open moor environments. 展开更多
关键词 Xingtai coalfield maceral composition aromatic compounds peat-forming environments Permian Carboniferous
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Analysis of the geothermal vortexes triggering the Xingtai earthquake in 1966 认领 引用
2
作者 汤懋苍 高晓清 《Acta Seismologica Sinica(English Edition)》 1997年第3期90-96,共7页
The occurrence process of the Xingtai earthquake (1996) is discussed on the basis of evolution of small scale ground temperature fields on the background of large ground temperature field. It point out that the mergin... The occurrence process of the Xingtai earthquake (1996) is discussed on the basis of evolution of small scale ground temperature fields on the background of large ground temperature field. It point out that the merging and strengthening of GHV is one of the basic reasons for triggering the Xingtai earthquake. It is worthy to pay attention that the earthquake precursors ( for example ground temperature …) does not clear with the shorter distance from the epicenter. It is an urgent task for earthquake prediction to strengthen the supervision of some spatial temporal continuous elements (such as G.T, geomagnetism, ground tilt field, gravity, etc.) and carry out comprehensive analysis. 展开更多
关键词 ground temperature field Xingtai earthquake ground hot vortex
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Analysis of Meteorological Causes of Serious Air Pollution in Xingtai City Based on Inversion Layer 认领 引用 被引量：8
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作者 Zhang Enzhong Yang Yunling +3 位作者 Dong Xiaoyan Yang Yongsheng Nie Dongge Hao Jufei 《Meteorological and Environmental Research》 2015年第7期5-9,共5页
Based on meteorological sounding data in 2011 -2014 and air pollution data in 2013 and 2014 from an environmental monitoring station in Xingtai City, the characteristics of inversion layer and air pollution and their ... Based on meteorological sounding data in 2011 -2014 and air pollution data in 2013 and 2014 from an environmental monitoring station in Xingtai City, the characteristics of inversion layer and air pollution and their correlation in Xingtai City were discussed. The results show that term perature inversion was very serious at 07：00 in Xingtai City, and days with temperature inversion accounted for above 90%. There were obvious seasonal variations in air pollution in Xingtai City, and air pollution was the most serious in winter but the slightest in summer. The primary air pollu- tants in Xingtai City are PM10 and PM2.5, and the primary air pollutants and AQI had close correlation with parameters of inversion layer. Stable ground inversion layer could hinder air convection and air capacity, so that air pollution become more serious with the discharge of pollutants. Inversion layer nearly appearing all the year around is an important meteorological reason for serious air pollution in Xingtai City. 展开更多
关键词 Xingtai City Inversion layer Air pollution Meteorological cause China
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Analysis of the Change Trends of Temperature and Frost-free Period in Xingtai in Recent 53 Years 认领 引用 被引量：2
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作者 CHENG Xiao-hui 《Meteorological and Environmental Research》 2011年第7期38-40,共3页
[Objective]The changes trend of temperature and frost-free period in Xingtai in recent 53 years were studied.[Method]According to the climate data of Xingtai City and Nangong County in 1958-2010,the changes trend of t... [Objective]The changes trend of temperature and frost-free period in Xingtai in recent 53 years were studied.[Method]According to the climate data of Xingtai City and Nangong County in 1958-2010,the changes trend of the temperature,the first and the last frost day,and the frost-free days in Xingtai were studied.The characteristics of the changes of temperature and frost-free days in Xingtai in recent 53 years were studied.[Result]No matter in city or countryside,the annual average temperature was increasing.The climate tendency rates in Xingtai and Nangong were about 0.5 and 0.2℃/10 a respectively.Especially,since 1996,the annual average temperature increasing trend was about 1.0℃/10 a.The average temperature of the four seasons was also climbing and was similar to the increasing span of the annual average temperature.The annual average temperature increasing span was the largest in winter.And the increase of the annual average temperature in winter was the largest and the increase of the annual average temperature was caused by the increase of the average temperature in winter.The urban annual average temperature was obviously higher than that of the countryside,which reflected the characteristics of tropical island effect.No matter in the city or the countryside,the early frost day,final frost day and frost-free day showed same tendency,namely,the delay of early frost day,advance of final-frost day,extension of frost-free day;the day of urban early frost was late than that of the countryside,and the final frost day was earlier than that of the countryside,the frost-free days were longer than that of countryside and indirectly influenced by urban heat effect.[Conclusion]The study provided theoretical basis for the development and application of thermal resources in Xingtai. 展开更多
关键词 Xingtai region Temperature Frost-free period Trend analysis China
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Explanation for Peat-Forming Environments of Seams 2 and 92 in Xingtai Coalfield, China 认领 引用 被引量：1
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作者 孙玉壮 W.Kalkreuth 《International Journal of Mining Science and Technology》 CAS 2000年第1期17-21,共5页
In terms of macrolithotypes and microlithotypes, the petrographic composition was determined on column samples of Permian Seam 2 and Carboniferous Seam 9(2) from the Xingtai Coalfield, China. The macrolithotypes are c... In terms of macrolithotypes and microlithotypes, the petrographic composition was determined on column samples of Permian Seam 2 and Carboniferous Seam 9(2) from the Xingtai Coalfield, China. The macrolithotypes are classified into bright coal (B), banded bright coal (BB), banded coal (BC),banded dull coal (BD), dull coal (D) and fibrous coal (F). The lithotypes are dominated by BD and D in Seam 2, and BB in Seam 9(2).Microlithotypes are dominated by inertite and durite in Seam 2 and by vitrite in Seam 9(2). Eight microlithotypes were selected as indicators of peat-forming environments. Two triangle diagrams were drawn based on the indicators in order to explicate the peat-forming environments of Permian Seam 2 and Carboniferous Seam 9(2). The results indicate that the peat of Carboniferous Seam 9(2) was formed dominantly in wet swamps, whereas tbe peat of Permian Seam 2 formed dominantly in dry and wet swamps. These results are agree with the regional geology, that is, the peat of Carboniferous Seam 9(2) was formed in a transition zone and the peat of Permian Seam 2 formed in an upper delta zone.The climate of the peat-forming time for Permian Seam 2 was drier than that for Carboniferous. 展开更多
关键词 peat environment lithotype Xingtai Coalfiield
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Winter Wheat Drought Monitoring and Comprehensive Risk Assessment: Case Study of Xingtai Administrative District in North China 认领 引用 被引量：1
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作者 Yanrui Shang Qinghua Hu +1 位作者 Gongying Liu Hanwen Zhang 《Journal of Environmental Science and Engineering(A)》 CAS 2017年第3期135-143,共9页
Drought monitoring is the base for drought coping and adaptation. Xingtai is located in North China＇s key winter wheat production areas where drought is severe and frequent. The rainfall during winter wheat growing s... Drought monitoring is the base for drought coping and adaptation. Xingtai is located in North China＇s key winter wheat production areas where drought is severe and frequent. The rainfall during winter wheat growing season is just about 1/3 of total demand. Xingtai has typical mountainous, hilly and plain agricultural zones, compound rain-fed and irrigated farming patterns. The winter wheat irrigation has heavily depended on overdraw of groundwater in recent decades. In the study, the MODIS （Moderate-Resolution Imaging Spectroradiometer） images taken at the key winter wheat growing season （Mar. to May） in normal rainfall year （2006） were selected, extracted NDVI （Normalized Difference Vegetation Index） and LST （Land Surface Temperature） data, calculated TVDI （Temperature and Vegetation Drought Index）, classified and mapped winter wheat drought intensity. Further, based on TVDI, a CDRA （Comprehensive Drought Risk Assessment） model for winter wheat drought disaster risk assessment was constructed and zoning was made. Verified by winter wheat yield, the risk zoning by CDRA is consistent with actual crop failure space. This method can be used in drought risk management. 展开更多
关键词 Key growing season of winter wheat TVDI （Temperature and Vegetation Drought Index） CDRA （ComprehensiveDrought Risk Assessment） Xingtai of Hebei Province in North China
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Dynamic Change of Ecological Footprint in Xingtai City in the Years 2003-2009 认领 引用 被引量：2
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作者 CHEN Ji-bing LI Yu-ping 《Asian Agricultural Research》 2011年第2期65-68,72,共4页
Quantitative estimation of the ecological footprint in Xingtai City in the years 2003-2009 is carried out by using the Ecological Footprint Model and the Time Series.Result shows that the per capita ecological footpri... Quantitative estimation of the ecological footprint in Xingtai City in the years 2003-2009 is carried out by using the Ecological Footprint Model and the Time Series.Result shows that the per capita ecological footprint demand increases in Xingtai City from the year 2003 to 2009;and land use for energy shows a significant increase,accounting for the maximum proportion in per capita ecological footprint demand.Per capita ecological footprint supply gradually decreases.Ecological supply provided by cultivated land occupies the greatest proportion in the supply of per capita ecological carrying capacity,which is the main factor determining the supply of ecological carrying capacity in Xingtai City.In the years 2003-2009,ecological footprint of Xingtai City is at the state of ecological deficit.This indicates that the economic and social development of Xingtai City is based on the over-exploitation of resources,especially the cultivated land and energy land.Thus,the development mode of Xingtai City has already been in a state of unsustainable development.Based on this,corresponding countermeasures are put forward for the sustainable development in future,so as to implement the healthy control of the sustainable development in Xingtai City,China. 展开更多
关键词 Ecological footprint Ecological carrying capacity Sustainable development Xingtai City China
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Analysis on Variation Trend of Rainfall in Xingtai Area in Recent 48 Years 认领 引用 被引量：1
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作者 CHENG Xiao-hui LIU Jun +3 位作者 YAN Ai-feng YANG Yong-sheng LIU Xiao-ling JI Song-peng 《Meteorological and Environmental Research》 2011年第9期32-34,共3页
[Objective] The research aimed to analyze the variation trend of rainfall in Xingtai area of Hebei Province in recent 48 years. [Method] According to the annual and seasonal rainfall data in Xingtai, Nangong, Shahe an... [Objective] The research aimed to analyze the variation trend of rainfall in Xingtai area of Hebei Province in recent 48 years. [Method] According to the annual and seasonal rainfall data in Xingtai, Nangong, Shahe and Neiqiu during 1963-2010, by using the interannual variation rainfall line chart, trend chart and climatic variability, the variation trend of rainfall in Xingtai area in recent 48 years was analyzed. [Result] The annual rainfall in Xingtai area during 1963-2010 presented yearly decrease trend, and the decrease velocity was 18.0 mm/10 a. The annual rainfall in Xingtai, Nangong, Shahe and Neiqiu roughly presented same trend (linear decrease). Except spring rainfall in Xingtai area in recent 48 years slightly increased, the rainfall in summer, autumn and winter all presented linear decrease trend. The decrease velocity of summer rainfall was the maximum. The decrease of summer rainfall played decisive role in rainfall decrease of the whole year. The decrease trend of winter rainfall wasn’t as significant as that of autumn rainfall. [Conclusion] The research provided theoretical basis for studying climatic variation characteristics in Xingtai area under the climatic warming background. 展开更多
关键词 Xingtai area Rainfall Trend analysis China
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Analysis on Climatic Change Trend in Xingtai City in Recent 57 Years 认领 引用
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作者 CHENG Xiao-hui ZHANG Qing-guang 《Meteorological and Environmental Research》 2012年第3期20-22,共3页
[ Objective] The research aimed to study climatic change trend in Xingtai City in recent 57 years. [ Method ] Based on climate data （ rain- fall, temperature, sunshine, relative humidity and ground temperature, etc. ... [ Objective] The research aimed to study climatic change trend in Xingtai City in recent 57 years. [ Method ] Based on climate data （ rain- fall, temperature, sunshine, relative humidity and ground temperature, etc. ） in Xingtai City during 1954 -2010, the climatic change trend in Xingtai City in recent 57 years was analyzed by using line chart, trend chart and climate variability. Moreover, the concrete characteristics of climatic change trend were discussed. [ Result] The annual rainfall in Xingtai City in recent 57 years presented obvious decrease trend, and the decrease velocity was 20.952 mrn/10 a. The annual average temperature, annual average maximum temperature and annual average minimum temperature all presented rise trends. The rise speed of minimum temperature was the fastest, and was followed by average temperature. The rise speed of maximum temperature was the slowest. The annual relative humidity decreased at the velocity of 1.460 %/10 a. The ground temperature of 0 cm presented rise trend, but the shallow-layer ground temperatures of 5 -20 cm all presented decline trends. The deep-layer ground temperatures of 0. 8 and 1.6 m both presented weak decline trends. The ground temperature of 3.2 m presented obvious rise trend. The annual total cloud amount in- creased at the velocity of 1.673 into/10 a. The annual sunshine hours decreased at the velocity of 100.600 h/10 a. The annual average and annual minimum atmospheric pressures both presented decline trends. The decline trend of annual minimum atmospheric pressure was very obvious, while the annual maximum atmospheric pressure presented obvious rise trend. [ Conclusion] The research provided theoretical basis for development and utilization of agricultural production resources in Xingtai City. 展开更多
关键词 Xingtai City Climate change Trend analysis China
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Analysis on Change Trend of Sunshine Hours in Xingtai Area in Recent 40 Years 认领 引用
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作者 CHENG Xiao-hui LIU Jun 《Meteorological and Environmental Research》 2011年第10期17-19,共3页
[Objective]The research aimed to analyze variation trend of sunshine hours in Xingtai area in recent 40 years.[Method]Based on yearly and seasonal total sunshine hours in Xingtai,Shahe and Neiqiu during 1971-2010,the ... [Objective]The research aimed to analyze variation trend of sunshine hours in Xingtai area in recent 40 years.[Method]Based on yearly and seasonal total sunshine hours in Xingtai,Shahe and Neiqiu during 1971-2010,the change characteristics of annual and seasonal sunshine hours were analyzed by using line chart,trend chart and climatic variability.[Result]The annual sunshine hours in Xingtai,Shahe and Neiqiu during 1971-2010 all showed systemic decrease tendency.The three-station average decrease velocity was 77.7 h/10 a.The decrease in Xingtai was the most significant.The second one was Neiqiu.The total sunshine hours of three stations in spring,summer,autumn and winter all presented systemic decrease tendency.The decrease of Xingtai was the most significant.The three-station average decrease rates in spring,summer,autumn and winter were respectively 10.7,18.7,21.6 and 26.6 h/10 a.Whether the annual or seasonal total sunshine hours,the decrease of Xingtai was the most significant,reflecting urban turbidity island effect feature.In the case of three-station mean in 40 years,the total sunshine hours in winter,spring,summer and autumn were respectively 485.5,691.4,631.7 and 551.1 h.It illustrated that spring sunshine was the most enough and was followed by summer sunshine.The gas blanket in winter was stable,and the sunshine hours were the fewest.The main reason of sunshine hours decrease was urbanization development and aggravation of pollutant discharge.[Conclusion]The research provided scientific basis for reasonably using agricultural climate resources,improving ecological environment and promoting development of agricultural economy. 展开更多
关键词 Xingtai area Sunshine hours Trend analysis China
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Characteristic Analysis and Forecast of Continuous High-temperature Weather in Xingtai Area of Hebei 认领 引用
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作者 Wang Xiaojuan Wang Congmei Liu Jin 《Meteorological and Environmental Research》 2014年第10期3-7,共5页
Through the analysis of durative high-temperature weather process occurred in Xingtai area in June of 2010,and the statistics on relative humidity and 850 hPa of temperature on high temperature day in Xingtai area dur... Through the analysis of durative high-temperature weather process occurred in Xingtai area in June of 2010,and the statistics on relative humidity and 850 hPa of temperature on high temperature day in Xingtai area during 2001- 2010,it was concluded that 500 h Pa of stable warm high-pressure ridge situation and 850 hPa of strong warm air mass control were favorable circulation situations for the formation of high temperature;sinking and adiabatic warming of high-altitude air mass was an important cause of high temperature weather generation; ground humidity at 14： 00 was small,that is,the atmosphere was very dry,and it was sunny-cloudy（ high cirrus） weather,which was a necessary condition for the high temperature weather; westerly at some time was favorable condition for high temperature; 850 h Pa of temperature prediction at the station was the key.When the forecasted 850 h Pa of station temperature was 21 ℃ and above,it was reminded the forecasters in the high-temperature forecast process. 展开更多
关键词 Continuous high-temperature weather Characteristic analysis Forecast Xingtai area China
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Analysis on Temperature Change Trend in Xingtai Area in Recent 48 Years 认领 引用
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作者 CHENG Xiao-hui 《Meteorological and Environmental Research》 2011年第8期30-32,共3页
[Objective] The research aimed to analyze the variation trend of temperature in Xingtai area in recent 48 years.[Method] According to the yearly and monthly average temperature data during 1963-2010 in Xingtai,Nangong... [Objective] The research aimed to analyze the variation trend of temperature in Xingtai area in recent 48 years.[Method] According to the yearly and monthly average temperature data during 1963-2010 in Xingtai,Nangong,Shahe and Neiqiu,the change trend of temperature in Xingtai area in recent 48 years was analyzed by using the line chart and trend chart of interannual variation average temperature,climate variability.[Result] The variation trends of annual average temperature,annual average maximum temperature,annual average minimum temperature and average temperatures in spring,summer,autumn,winter in Xingtai area in recent 48 years all presented the roughly same characteristics,which yearly rose.It embodied the climatic characteristics of global warming.The rise of annual mean temperature was because that the minimum temperature and winter average temperature rose.The continuous warm winter played the decisive role for the rise of annual average temperature.[Conclusion] The research provided the theoretical basis for understanding the variation characteristics of climate in Xingtai area under the climate warming background. 展开更多
关键词 Xingtai area Temperature Trend analysis China
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Cost-benefit Analysis of Chestnut Production in Xingtai County 认领 引用
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作者 Yuji JIN 《Asian Agricultural Research》 2014年第4期33-37,共5页
On the basis of market demand survey of chestnut,this article carries out cost-benefit analysis of the chestnut production in Xingtai County,to understand the profitability and payback period of local chestnut product... On the basis of market demand survey of chestnut,this article carries out cost-benefit analysis of the chestnut production in Xingtai County,to understand the profitability and payback period of local chestnut production.It points out that chestnut production has a high rate of return on investment,and chestnut can be promoted on a large scale in Xingtai County.However,there are still some problems in the production and marketing of chestnut in Xingtai County,such as low level of technology,extensive management,low level of organization,market imperfections and weak brand consciousness.Based on these problems,corresponding recommendations are put forth. 展开更多
关键词 Chestnut Cost-benefit analysis Xingtai County
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Analyses on Climate Characteristics in Xingtai City during 1954-2010 认领 引用
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作者 LIU Jun CHENG Xiao-hui HUANG Rong 《Meteorological and Environmental Research》 2011年第11期23-24,28,共2页
[Objective]The research aimed to analyze climate characteristics in Xingtai City during 1954-2010.[Method]Based on climate data in Xingtai City during 1954-2010,by using line chart,trend chart,climatic variability and... [Objective]The research aimed to analyze climate characteristics in Xingtai City during 1954-2010.[Method]Based on climate data in Xingtai City during 1954-2010,by using line chart,trend chart,climatic variability and statistical diagram,the climate characteristics in Xingtai City in 57 years were analyzed.[Result]The annual average temperature,annual average maximum and minimum temperatures in Xingtai City during 1954-2010 all presented gradual rise trend.The rise velocity of annual average maximum temperature was the slowest.The annual average temperature presented rise trend year by year.The rise velocity of annual average minimum temperature was the fastest.The annual average rainfall,wind speed,relative humidity and sunshine hours all presented gradual decline trend,while the annual average total cloud amount presented increase trend.The annual average ground temperatures at 0,5,10,15 and 20 cm in Xingtai City during 1954-2010 were respectively 15.6,15.7,15.8,15.8 and 15.8℃.The annual average ground temperatures at 40 and 80 cm,1.6 and 3.2 m in Xingtai City during 1981-2010 were respectively 15.2,15.2,15.4 and 15.4℃.It was clear that the ground temperature at deep layer gradually rose as depth increase.[Conclusion]The research provided theoretical basis for guiding agricultural production in Xingtai City. 展开更多
关键词 Xingtai City Climate characteristics Analysis China
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Seismotectonic Model for 1966 Xingtai Earthquake Swarm—— Nucleation of Newly Generated Fault or Friction Stick-slip Along a Preexisting Active Fault 认领 引用
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作者 XuXiwei GuMengling 《Earthquake Research in China》 2001年第2期174-189,共16页
Shallow seismic profiling in meizoseismal area of Xingtai earthquakes, phase division of Cenozoic movement of deep and shallow structures, analysis of characteristics of crustal and upper mantle structure, and compara... Shallow seismic profiling in meizoseismal area of Xingtai earthquakes, phase division of Cenozoic movement of deep and shallow structures, analysis of characteristics of crustal and upper mantle structure, and comparative study on parameters of seismic sources indicate that the listric faults controlling the development of early Tertiary basin-range structure and eastward gently-dipping detachment below it in the Xingtai epicentral area are not related to the occurrence of Xingtai earthquakes. The Xingtai earthquake swarm is a product of three-dimensional fracture process in which the discontinuous "deep faults", separated by NW-trending faults or by transverse barriers, successively tore, fractured, and propagated upward and, hence, caused the stress between the adjacent deep faults to migrate and load under the action of latest tectonic stress field. The Xingtai seismogenic fault represents a " newly generated fault" resulted from the upward tearing and propagation of the preexisting crustal " deep fault". 展开更多
关键词 Xingtai earthquake Newly generated fault Preexisting active fault Seismotectonics
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Xingtai: A Green County in the Taihang Mountains 认领 引用
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《China Today》 2001年第7期70-71,共2页
关键词 A Green County in the Taihang Mountains Xingtai
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Construction of a Rural Landscape Heritage Assessment System from a Multidisciplinary Perspective—A Case Study of Xingtai City 认领 引用
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作者 GONG Jingzheng DENG Baohui +1 位作者 ZHANG Qing CHEN Hongwei 《Journal of Resources and Ecology》 CSCD 2025年第6期1695-1706,共12页
This study constructs a multidisciplinary assessment system adapted to the characteristics of rural landscape heritage in Xingtai City and uses that system to comprehensively evaluate its historical-cultural value,eco... This study constructs a multidisciplinary assessment system adapted to the characteristics of rural landscape heritage in Xingtai City and uses that system to comprehensively evaluate its historical-cultural value,ecological environmental value,social identity,and development potential,thereby providing a scientific basis for the protection and sustainable utilization of rural landscape heritage.The assessment framework was constructed through methods such as literature review,expert interviews,and field research,combined with the Analytic Hierarchy Process(AHP).This framework integrates qualitative and quantitative analysis and assigns reasonable weights to each assessment dimension.The results indicate that the core value of Xingtai City’s rural landscape heritage lies in the dual advantages of historical-cultural and ecological environmental resources,with the weights for historical-cultural value and ecological environmental value being 30%and 25%,respectively,Significantly higher than social recognition(20%),and together with development potential(25%),constitutes the core value dimensions in the evaluation system.Ultimately,the assessment system reflects the local characteristics and development needs of Xingtai City’s rural landscape heritage,especially in terms of historical-cultural protection and ecological tourism development.This study provides a theoretical reference and practical guidance for the assessment of rural landscape heritage in other regions. 展开更多
关键词 multidisciplinary rural landscape heritage assessment system construction Xingtai City
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太行山南段邯邢地区叩天井闪长岩成因:来自锆石U-Pb年龄和角闪石地球化学的约束 认领 引用
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作者 郭子桤 李献龙 +6 位作者 梁贤 温雨菁 张龙 朱伊冰 赵志福 吴宇天 张聚全 《河北地质大学学报》 2026年第3期13-23,共11页
邯邢地区中生代成矿岩体普遍具有高氧逸度特征,但岩浆深-浅部演化过程中物理化学条件变化及其成矿制约机制仍认识不足。叩天井地区位于太行山构造-岩浆活动带南部,其闪长岩为探讨上述问题提供了理想对象。该研究对叩天井地区闪长岩开展... 邯邢地区中生代成矿岩体普遍具有高氧逸度特征,但岩浆深-浅部演化过程中物理化学条件变化及其成矿制约机制仍认识不足。叩天井地区位于太行山构造-岩浆活动带南部,其闪长岩为探讨上述问题提供了理想对象。该研究对叩天井地区闪长岩开展锆石U-Pb定年及角闪石成分分析,系统反演其成岩温度、压力、氧逸度与形成深度。结果显示,闪长岩形成于早白垩世,加权平均年龄为126.8±7.8 Ma,与邯邢地区主要成矿期一致。角闪石记录了两阶段结晶过程:第一阶段形成于高温(866~963℃)、中压(203~405 MPa)及高氧逸度条件(ΔNNO=+1.06~+3.09),结晶深度为7.16~14.30 km,为幔源岩浆结晶的镁绿钙闪石;第二阶段形成于中温(628~667℃)、低压(26~33 MPa)环境,结晶深度为0.93~1.15 km,为浅部壳源岩浆演化形成的浅闪石。结合邯邢地区成矿岩体角闪石的化学特征,认为叩天井闪长岩记录了“深部幔源高氧逸度岩浆-浅部壳源演化岩浆”的多阶段演化过程。 展开更多
关键词 成因矿物学 锆石 角闪石 邯邢地区 叩天井
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邢台市2014~2023年大气污染物时空特征及影响因素 认领 引用 被引量：1
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作者 薛梦涵 王轶浩 +4 位作者 郭红妍 杨得权 邓洁 高澳寒 张佳怡 《中国环境科学》 EI CAS CSCD 北大核心 2026年第5期2425-2434,共10页
基于2014~2023年邢台市空气质量逐时数据,采用空间自相关、灰色关联法、突变点检测法等研究了邢台市大气污染物时空分异规律及其驱动因素.结果表明:(1)邢台市空气质量综合指数及大气PM2.5、PM10、CO、SO2、NO2质量浓度均随... 基于2014~2023年邢台市空气质量逐时数据,采用空间自相关、灰色关联法、突变点检测法等研究了邢台市大气污染物时空分异规律及其驱动因素.结果表明:(1)邢台市空气质量综合指数及大气PM2.5、PM10、CO、SO2、NO2质量浓度均随年限呈下降趋势,并呈“U”型的年内月变化规律;大气O3质量浓度则随年限呈上升趋势,年均增幅达3.05%,并呈倒“V”型的年内月变化规律.(2)各大气污染物空间分异明显,且呈显著的正相关趋势及整体集聚现象,其中大气PM2.5、PM10、NO2、O3还呈明显的局部集聚现象.(3)第二产业占比对大气PM2.5、PM10、CO、NO2的影响最大,工业烟(粉)尘排放则主导大气SO2变化,风速等多个因素均与大气O3关联性极强.(4)除大气O3外,政府政策对各大气污染物的防治成效均明显,但对部分污染物存在一定滞后性.研究结果可为京津冀大气污染联防联控及其政策制定提供科学依据,同时建议未来需重点关注邢台市大气O3污染,并制定实施专门的大气O3污染防治政策及措施. 展开更多
关键词 大气污染物 时空分异 影响因素 污染防治政策 邢台市
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1966年邢台地震震源机制中心解及目前综合地震矩张量特征 认领 引用
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作者 张衷海 万永魁 +1 位作者 陈鑫 徐宜成 《华北地震科学》 2026年第3期17-23,共7页
为揭示1966年邢台震源区发震断裂的破裂特征,深化地震活动规律与破裂模式的认识,搜集整理了该地震序列强震震源机制解资料求解其中心解,并系统搜集了2002年以来数字地震台网邢台震源区中小震震源机制资料,统计分析了发震断裂带上89组地... 为揭示1966年邢台震源区发震断裂的破裂特征,深化地震活动规律与破裂模式的认识,搜集整理了该地震序列强震震源机制解资料求解其中心解,并系统搜集了2002年以来数字地震台网邢台震源区中小震震源机制资料,统计分析了发震断裂带上89组地震的震源机制节面聚类特征与综合地震矩张量,对比分析了地震破裂带的综合矩张量,探究了震源区的破裂模式特征,得到以下主要结果:①结合前人给出的该地震震源机制以及震源区历史地震节面的聚类分析,厘定了隆尧MS6.8地震震源机制解节面I走向、倾角、滑动角,分别为315.01°、82.57°、8.91°,节面Ⅱ分别为223.85°、81.16°、172.48°;宁晋MS7.2地震震源机制解节面I走向、倾角、滑动角分别为15.55°、84.71°、169.57°,节面Ⅱ分别为106.53°、79.61°、5.38°。②破裂带的综合矩张量表现为:近WS-EN向挤压,WN-ES向拉张的特征,且包含一定的CLVD分量。本研究揭示了邢台地震破裂带的破裂模式,为认识邢台震源区今后地震活动的持续演化特征提供了基础资料,同时为华北地区地震危险性评估提供了新的参考。 展开更多
关键词 邢台地震 震源机制 矩张量分解 CLVD分量
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