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东大别地区磷灰石裂变径迹年龄的构造意义初析

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地质科学 2002年第3期37卷 343-349页

作者：吴堑虹刘顺生 R.Jonckheere g.a.wagner 中国科学院广州地球化学研究所广州510640 Max-Planck Institute fr Kernphysik

东大别山地区磷灰石裂变径迹年龄值为 5 9 4± 3 4～ 1 0 5 6± 9 8Ma ,具跨度较大 ,空间分布不均匀 ,沿主要断裂走向及倾向均不连续的特点。磷灰石裂变径迹年龄的这些特点暗示的构造意义可能是 :自燕山运动以来研究区的构造抬升为缓... 详细信息

东大别山地区磷灰石裂变径迹年龄值为 5 9 4± 3 4～ 1 0 5 6± 9 8Ma ,具跨度较大 ,空间分布不均匀 ,沿主要断裂走向及倾向均不连续的特点。磷灰石裂变径迹年龄的这些特点暗示的构造意义可能是 :自燕山运动以来研究区的构造抬升为缓慢且不均匀格局 ;晓天—磨子潭断裂中段在第三纪时可能有逆冲活动 ;由磷灰石封闭径迹长度及单颗粒磷灰石年龄进行的初步热历史模拟分析显示 ,距今约 45～ 5 5Ma,郯庐断裂和晓天—磨子潭断裂曾再次活动 ,前者活动规模较后者大 ;断裂活动可能是该区不均匀构造抬升的主要控制因素之一。

关键词：大别山裂变径迹年龄抬升断裂活动磷灰石空间分布

利用磷灰石裂变径迹定年方法探讨东大别山地区中、新生代构造抬升样式

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核技术 2002年第7期25卷 531-536页

作者：吴堑虹刘顺生 g.a.wagner R.Jonckheere 中国科学院长沙大地构造研究所长沙410013 Max-Planck Institute für Kernphysik

利用裂变径迹定年方法对东大别山地区进行了磷灰石裂变径迹年龄值和其空间分布样式及对中新生代构造活动示踪意义的初步探讨 ,并改进了传统的径迹统计方法。结果表明 ,研究区磷灰石裂变径迹年龄值为 5 9.4± 3.4— 10 5 .6± 9.8Ma,具... 详细信息

利用裂变径迹定年方法对东大别山地区进行了磷灰石裂变径迹年龄值和其空间分布样式及对中新生代构造活动示踪意义的初步探讨 ,并改进了传统的径迹统计方法。结果表明 ,研究区磷灰石裂变径迹年龄值为 5 9.4± 3.4— 10 5 .6± 9.8Ma,具有跨度较大以及由东向西趋向增大的特点 ;研究区自 95Ma以来其构造抬升是缓慢且不均匀 ;晓天 -磨子潭断裂中部在第三纪可能有逆冲 ;

关键词：裂变径迹构造抬升非标准方法

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新式大型氨合成塔

流体机械 1972年第Z1期 56-59页

作者： g.P.Eschenbrenner g.a.wagner,Ⅲ 《化工与通用机械》编辑组

随着大型合成氨厂的出现,日产1000吨氨及1000吨以上的单系统流程设备已经发展了全新的设计概念,其中也包括了***公司新型氨合成塔的设计。这种新型设计已经在40套机组中采用,而且大部分已经开工生产。设备设计师们和用户们都在着眼于未... 详细信息

随着大型合成氨厂的出现,日产1000吨氨及1000吨以上的单系统流程设备已经发展了全新的设计概念,其中也包括了***公司新型氨合成塔的设计。这种新型设计已经在40套机组中采用,而且大部分已经开工生产。设备设计师们和用户们都在着眼于未来,发展和确定产量超过目前使用的单系统成套设备的现实性。一般采用的轴流立式合成塔设计,由于所需要的直径、压降和容器总重受到一定的限制,

关键词：合成塔颗粒外筒换热器合成筒热交换器交换器触媒反应气体

geostatistical seismic inversion and 3D modelling of metric flow units,porosity and permeability in Brazilian presalt reservoir

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Petroleum Science 2024年第3期21卷 1699-1718页

作者： Rodrigo Penna wagner Moreira Lupinacci Exploratory Interpretation and Reservoir Characterization group(gIECAR) Department of Geology and GeophysicsUniversidade Federal FluminenseNiteroiRJ24210-346Brazil Petrobras Rio de JaneiroRJ20031-912Brazil

Flow units(FU)rock typing is a common technique for characterizing reservoir flow behavior,producing reliable porosity and permeability estimation even in complex geological ***,the lateral extrapolation of FU away from the well into the whole reservoir grid is commonly a difficult task and using the seismic data as constraints is rarely a subject of *** paper proposes a workflow to generate numerous possible 3D volumes of flow units,porosity and permeability below the seismic resolution limit,respecting the available seismic data at larger *** methodology is used in the Mero Field,a Brazilian presalt carbonate reservoir located in the Santos Basin,who presents a complex and heterogenic geological setting with different sedimentological processes and diagenetic *** generated metric flow units using the conventional core analysis and transposed to the well log ***,given a Markov chain Monte Carlo algorithm,the seismic data and the well log statistics,we simulated acoustic impedance,decametric flow units(DFU),metric flow units(MFU),porosity and permeability volumes in the metric *** aim is to estimate a minimum amount of MFU able to calculate realistic scenarios porosity and permeability scenarios,without losing the seismic lateral *** other words,every porosity and permeability volume simulated produces a synthetic seismic that match the real seismic of the area,even in the metric *** achieved 3D results represent a high-resolution fluid flow reservoir modelling considering the lateral control of the seismic during the process and can be directly incorporated in the dynamic characterization workflow.

关键词： Flowunits geostatistical inversion Presalt reservoir 3D reservoir modelling Petrophysical modelling

Organic petrographic and mineralogical composition of the No. 6 coal seam of the Soutpansberg Coalfield, South Africa: Insights into paleovegetation and depositional environment

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International Journal of Coal Science & Technology 2024年第3期11卷 190-207页

作者： Sanki Biswas Nicola J.wagner Ofentse M.Moroeng DSI-NRF CIMERA/PPM Research group Department of GeologyUniversity of JohannesburgJohannesburgSouth Africa

This study investigates the paleodepositional conditions of the No.6 Seam of the Madzaringwe Formation in Makhado and Voorburg south area of the Soutpansberg Coalfield(Limpopo Province,South Africa)utilizing organic petrography and inorganic geochemical *** coals are predominantly high-volatile bituminous B-A rank with high ash yields(avg.36.1 wt%),characterized by high-vitrinite(~41.5 vol%),moderate-to-high inertinite(9.8 vol%–33.7 vol%)and low liptinite(~2.3 vol%).The distribution of inertinite varies among different coal horizons(from bottom-lower to middle-upper),suggesting differential oxidation conditions and/or paleofire ***-to-inertinite(V/I)ratio,tissue preservation–gelification index(TPI–gI),and groundwater–vegetation index(gWI–VI)plots,indicate that the peat-forming forest-swamp vegetation accumulated under mesotrophic-to-rheotrophic hydrological *** presence of structured macerals(i.e.,telinite,collotelinite,fusinite,and semifusinite)suggests well-preserved plant tissues,whereas framboidal pyrite and sulphur content(0.24 wt%–2.16 wt%)point to brackish-water influence at the peat *** coals contain quartz,kaolinite,siderite,muscovite,dolomite,calcite,and pyrite minerals,most of which were likely sourced from felsic igneous *** Al/(Al+Fe+Mn)and(Fe+Mn)/Ti ratios for the studied samples range between 0.24–0.97 and 0.57–70.10,*** ratios,Al–Fe–Mn plot,and presence of massive botryoidal-type pyrite imply some influence of meteoric waters or fluids from hydrothermal activity ***,the chemical index of alteration(CIA:98.25–99.67),chemical index of weathering(CIW:92.04–97.66),and A–CN–K ternary diagram suggest inorganic matter suffered strong chemical weathering,indicating warm paleoclimatic conditions during the coal formation.

关键词： Macerals Coal facies geochemical-indices Hydrothermal Madzaringwe formation Soutpansberg Coalfield

荷能重离子辐照常规和高压条件下磷灰石的损伤研究

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荷能重离子辐照常规和高压条件下磷灰石的损伤研究

Stochastic seismic inversion and Bayesian facies classification applied to porosity modeling and igneous rock identification

第九届全国固体核径迹学术研讨会

作者：刘杰 U.A.glasmacher M.Lang C.Trautmann K.-0.Voss R.Neumann g.a.wagner R.Miletich 中科院近物所德国海德堡大学地质研究所德国重离子研究中心德国海德堡马普核物理研究所德国海德堡大学矿物研究所

单晶磷灰石(Durango)样品放置于金刚石压腔(DAC)中的两块厚度～1．5-mm 金刚石压砧之间, 加压至10．5 gPa。利用德国重离子研究中心(gSI)的同步加速器(SIS)产生的初始能量106 MeV/u 的 Kr 离子辐照装有样品的压腔。离子穿过真空窗、空气...

单晶磷灰石(Durango)样品放置于金刚石压腔(DAC)中的两块厚度～1．5-mm 金刚石压砧之间, 加压至10．5 gPa。利用德国重离子研究中心(gSI)的同步加速器(SIS)产生的初始能量106 MeV/u 的 Kr 离子辐照装有样品的压腔。离子穿过真空窗、空气,以及一个压砧后到达样品的能量为25

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Petroleum Science 2024年第2期21卷 918-935页

作者： Fábio Júnior Damasceno Fernandes Leonardo Teixeira Antonio Fernando Menezes Freire wagner Moreira Lupinacci Exploratory Interpretation and Reservoir Characterization group(gIECAR) Department of Geology and GeophysicsFederal Fluminense UniversityNiter oiRJ24210-346Brazil Petrobras Rio de JaneiroRJ20231-030Brazil National Institute of Science and Technology of Petroleum geophysics(INCT-gP/CNPQ) Niter oiRJ24210-346Brazil

We apply stochastic seismic inversion and Bayesian facies classification for porosity modeling and igneous rock identification in the presalt interval of the Santos Basin. This integration of seismic and well-derived information enhances reservoir characterization. Stochastic inversion and Bayesian classification are powerful tools because they permit addressing the uncertainties in the model. We used the ES-MDA algorithm to achieve the realizations equivalent to the percentiles P10, P50, and P90 of acoustic impedance, a novel method for acoustic inversion in presalt. The facies were divided into five: reservoir 1,reservoir 2, tight carbonates, clayey rocks, and igneous rocks. To deal with the overlaps in acoustic impedance values of facies, we included geological information using a priori probability, indicating that structural highs are reservoir-dominated. To illustrate our approach, we conducted porosity modeling using facies-related rock-physics models for rock-physics inversion in an area with a well drilled in a coquina bank and evaluated the thickness and extension of an igneous intrusion near the carbonate-salt interface. The modeled porosity and the classified seismic facies are in good agreement with the ones observed in the wells. Notably, the coquinas bank presents an improvement in the porosity towards the top. The a priori probability model was crucial for limiting the clayey rocks to the structural lows. In Well B, the hit rate of the igneous rock in the three scenarios is higher than 60%, showing an excellent thickness-prediction capability.

关键词： Stochastic inversion Bayesian classification Porosity modeling Carbonate reservoirs Igneous rocks

Mechanical upper bowel obstruction caused by a large trichobezoar in a young woman: A very unusual case report

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World Journal of Clinical Cases 2024年第4期12卷 777-781页

作者： Magdalena Scherrer Peter Kornprat Robert Sucher Johanna Muehlsteiner Doris wagner Department of Surgery Division for GeneralVisceral and Transplantation SurgeryMedical University of GrazGraz 8036Austria Department of Surgery Clinic RohrbachRohrbach 4150Austria

BACKgROUND Bezoars usually compile human fibers and debris.A special form of bezoar in case of psychologically altered individuals is the *** consists of voluntarily swallowed hair bulks and is normally removed via *** leading to ileus have rarely been *** SUMMARY A 24-year-old female patient presented to the emergency room with abdominal pain,nausea,and vomiting for 3 *** previous medical and psychiatric history was *** analysis showed iron deficiency anemia,leukocytosis,and elevated liver *** abdominal CT scan revealed a dense structure in the patients’stomach which turned out to be a huge trichobezoar completely obstructing the *** trichobezoar had to be removed *** her postoperative course,a subcutaneous seroma *** a single puncture,the rest of the recovery process was unremarkable,and the patient recovered *** A mechanical bowel obstruction is a potentially life-threatening event for every *** our case a young female was suffering from severe symptoms of an obstruction which might have resulted in serious harm without successful surgical management.

关键词： Rapunzel syndrome Hair ingestion gastroscopy Bezoar Case report

Challenges and opportunities in the production of magnesium parts by directed energy deposition processes

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Journal of Magnesium and Alloys 2024年第5期12卷 1663-1686页

作者： gürel Cam Ali günen Iskenderun Technical University Faculty of Engineering and Natural SciencesDepartment of Mechanical Engineering31200 Iskenderun-HatayTurkey Iskenderun Technical University Faculty of Engineering and Natural SciencesDepartment of Metallurgy and Materials Engineering31200 Iskenderun-HatayTurkey

Mg-alloys have gained considerable attention in recent years for their outstanding properties such as lightweight,high specific strength,and corrosion resistance,making them attractive for applications in medical,aerospace,automotive,and other transport ***,their widespread application is hindered by their low formability at room temperature due to limited slip *** Mg-alloys have low mechanical properties due to the presence of casting defects such as porosity and anisotropy in addition to the high *** casting methods benefit from established process optimization techniques for these problems,additive manufacturing methods are increasingly replacing casting methods in Mg alloys as they provide more precise control over the microstructure and allow specific grain orientations,potentially enabling easier optimization of anisotropy properties in certain *** metal additive manufacturing(MAM)technology also results in some manufacturing defects such as inhomogeneous microstructural evolution and porosity and additively manufactured Mg alloy parts exhibit lower properties than the wrought parts,they in general exhibit superior properties than the cast ***,MAM is a promising technique to produce Mg alloy *** energy deposition processes,particularly wire arc directed energy deposition(WA-DED),have emerged as an advantageous additive manufacturing(AM)technique for metallic materials including magnesium alloys,offering advantages such as high deposition rates,improved material efficiency,and reduced production costs compared to subtractive ***,the inherent challenges associated with magnesium,such as its high reactivity and susceptibility to oxidation,pose unique hurdles in the application of this *** review paper delves into the progress made in the application of DED technology to Mg-alloys,its challenges,and ***,the predominant imperfections,notably inhomo

关键词： Additive manufacturing DED processes Arc-DED Wire arc additive manufacturing(WAAM) 3-D printing High deposition rate