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Central European Geology最新文献

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Micropaleontological observations on the Lower Cretaceous iron ore-related formations of the Mecsek Mts. (Upper Valanginian–Lower Hauterivian, South Hungary) 下白垩世Mecsek mt(上瓦兰吉尼亚-下Hauterivian，南匈牙利)铁矿相关地层的微古生物学观察
Central European Geology Pub Date : 2018-05-31 DOI: 10.1556/24.61.2018.08
L. Bujtor, Balázs Szinger
{"title":"Micropaleontological observations on the Lower Cretaceous iron ore-related formations of the Mecsek Mts. (Upper Valanginian–Lower Hauterivian, South Hungary)","authors":"L. Bujtor, Balázs Szinger","doi":"10.1556/24.61.2018.08","DOIUrl":"https://doi.org/10.1556/24.61.2018.08","url":null,"abstract":"The Late Valanginian–Early Hauterivian iron ore deposit and related formations at Zengővarkony (Mecsek Mts., South Hungary) provided a relatively rich microfauna of foraminifera, crustacean microco...","PeriodicalId":39930,"journal":{"name":"Central European Geology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1556/24.61.2018.08","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46713952","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 7
Spatial uncertainty quantification of siliciclastic reservoirs, using the distance kernel method 利用距离核方法对硅质碎屑岩储层的空间不确定性量化
Central European Geology Pub Date : 2018-03-21 DOI: 10.1556/24.61.2018.06
Mihály Apró
{"title":"Spatial uncertainty quantification of siliciclastic reservoirs, using the distance kernel method","authors":"Mihály Apró","doi":"10.1556/24.61.2018.06","DOIUrl":"https://doi.org/10.1556/24.61.2018.06","url":null,"abstract":"Assessing the uncertainty in reservoir performance is a necessary step during the exploration phase. To examine the uncertainty in flow response, a large set of realizations must be processed. Ther...","PeriodicalId":39930,"journal":{"name":"Central European Geology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1556/24.61.2018.06","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48752379","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Tunnel-excavation-induced permeability change of rock mass around a radioactive waste repository tunnel 隧道开挖引起放射性废物库隧道周围岩体渗透性变化
Central European Geology Pub Date : 2018-03-12 DOI: 10.1556/24.61.2018.05
D. Borbély
{"title":"Tunnel-excavation-induced permeability change of rock mass around a radioactive waste repository tunnel","authors":"D. Borbély","doi":"10.1556/24.61.2018.05","DOIUrl":"https://doi.org/10.1556/24.61.2018.05","url":null,"abstract":"Upon completion, the National Radioactive Waste Repository in Bataapati will provide safe storage for low- and medium-level radioactive waste. The emplacement chambers were excavated in a fractured...","PeriodicalId":39930,"journal":{"name":"Central European Geology","volume":"61 1","pages":"73-84"},"PeriodicalIF":0.0,"publicationDate":"2018-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1556/24.61.2018.05","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49524334","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
Statistical process control in the evaluation of geostatistical simulations 地质统计模拟评价中的统计过程控制
Central European Geology Pub Date : 2018-03-01 DOI: 10.1556/24.61.2018.04
J. Geiger
{"title":"Statistical process control in the evaluation of geostatistical simulations","authors":"J. Geiger","doi":"10.1556/24.61.2018.04","DOIUrl":"https://doi.org/10.1556/24.61.2018.04","url":null,"abstract":"This paper deals with a question: how many stochastic realizations of sequential Gaussian and indicator simulations should be generated to obtain a fairly stable description of the studied spatial ...","PeriodicalId":39930,"journal":{"name":"Central European Geology","volume":"61 1","pages":"50-72"},"PeriodicalIF":0.0,"publicationDate":"2018-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1556/24.61.2018.04","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45776679","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Evaluation of the trends of secondary and tertiary hydrocarbon migration processes based on oil density–reservoir depths relationship in Hungary 基于油层密度-储层深度关系的匈牙利地区二、三次油气运移趋势评价
Central European Geology Pub Date : 2018-02-15 DOI: 10.1556/24.61.2018.02
Z. Kovács, L. Zilahi-Sebess
{"title":"Evaluation of the trends of secondary and tertiary hydrocarbon migration processes based on oil density–reservoir depths relationship in Hungary","authors":"Z. Kovács, L. Zilahi-Sebess","doi":"10.1556/24.61.2018.02","DOIUrl":"https://doi.org/10.1556/24.61.2018.02","url":null,"abstract":"Depth of reservoirs of Hungarian oil fields and related oil density data were collected from the database of the Hungarian Mineral Resource Inventory. The purpose of the investigation was to point out the correlation between oil density and reservoir depth in some of the Hungarian hydrocarbon productive regions. Oil density related to reservoir depth in a particular area is generally linked to the migration mechanism. Zala Basin trends show a different migration process regionally and locally; tertiary migration by overflow mechanism can be supposed for the latter case. In the case of the Szeged–Kiskunsag region, locally and regionally, migration along carrier beds through semipermeable sediments is present, with faults playing a significant role. In the Nagykunsag region, the migration processes are similar to those in Zala, but the presence of faults seems more important. At depths below 2,000 m, the Bihar region trends are similar to those of the Szeged–Kiskunsag region. In the shallower zone, hydrodynamic effects are recognizable. In two studied regions, the Battonya–Pusztafoldvar High and the Hungarian Paleogene Basin, the density of crude oil data does not show any significant variability and trend. Biodegradation and water washing were recognizable in the depth sections shallower than 2,000 m below surface. In karstic reservoirs of the Zala Basin (Nagylengyel, Savoly), alteration is presumed at greater depths due to the karst water flow. The presented results show several trends of oil migration in the explored areas, which can be used for future estimation of the hydrocarbon potential in the Hungarian part of the Pannonian Basin.","PeriodicalId":39930,"journal":{"name":"Central European Geology","volume":"61 1","pages":"16-33"},"PeriodicalIF":0.0,"publicationDate":"2018-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1556/24.61.2018.02","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44378525","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The effect of grain size, surface roughness, and joint compressive strength on shear strength along discontinuities of Hungarian sandstones 粒度、表面粗糙度和节理抗压强度对匈牙利砂岩不连续面剪切强度的影响
Central European Geology Pub Date : 2018-02-15 DOI: 10.1556/24.61.2018.03
Alina Vattai, N. Rozgonyi-Boissinot
{"title":"The effect of grain size, surface roughness, and joint compressive strength on shear strength along discontinuities of Hungarian sandstones","authors":"Alina Vattai, N. Rozgonyi-Boissinot","doi":"10.1556/24.61.2018.03","DOIUrl":"https://doi.org/10.1556/24.61.2018.03","url":null,"abstract":"In this study, the joint shear strength of low-strength Hungarian sandstones of different grain size and surface roughness was investigated. The direct shear tests along discontinuities were performed under constant normal load. Previously, the direct shear test basic rock mechanic parameters of the investigated intact rocks were determined, such as the UCS value. The goal of the investigation is to determine the effect of the surface properties, such as surface roughness, grain size, and surface quality, on the joint shear strength of Hungarian sandstones. The failure curves derived from the experimental results of direct shear tests under laboratory conditions, and the empirical results according to Barton and Choubey (1977) were compared.","PeriodicalId":39930,"journal":{"name":"Central European Geology","volume":"61 1","pages":"34-49"},"PeriodicalIF":0.0,"publicationDate":"2018-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1556/24.61.2018.03","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49528223","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Examination of rainfall data for 110 years using spectral and wavelet analysis 用光谱和小波分析对110年降水资料的检验
Central European Geology Pub Date : 2018-02-13 DOI: 10.1556/24.61.2018.01
Csaba Ilyés, E. Turai, P. Szűcs
{"title":"Examination of rainfall data for 110 years using spectral and wavelet analysis","authors":"Csaba Ilyés, E. Turai, P. Szűcs","doi":"10.1556/24.61.2018.01","DOIUrl":"https://doi.org/10.1556/24.61.2018.01","url":null,"abstract":"The aim of our research was to better understand the spectral characteristics of precipitation variability, because through infiltration, this is the most important source of groundwater recharge. ...","PeriodicalId":39930,"journal":{"name":"Central European Geology","volume":"61 1","pages":"1-15"},"PeriodicalIF":0.0,"publicationDate":"2018-02-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1556/24.61.2018.01","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46398876","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
Metamorphic and deformation history of the Mecsekalja Zone around the Szentlőrinc-1 well using individual quartz grains from drilling chips 利用钻屑中的单个石英颗粒研究Szentlőrinc-1井周围Mecsekalja带的变质和变形历史
Central European Geology Pub Date : 2018-01-18 DOI: 10.1556/24.60.2017.013
Á. Skultéti, T. Tóth, I. Kovács, E. Király, Judit Sándorné Kovács
{"title":"Metamorphic and deformation history of the Mecsekalja Zone around the Szentlőrinc-1 well using individual quartz grains from drilling chips","authors":"Á. Skultéti, T. Tóth, I. Kovács, E. Király, Judit Sándorné Kovács","doi":"10.1556/24.60.2017.013","DOIUrl":"https://doi.org/10.1556/24.60.2017.013","url":null,"abstract":"The Mecsekalja Zone is a strike-slip fault zone that plays an essential role in the structural framework of South Transdanubia. The metamorphic and deformation history of the crystalline basement o...","PeriodicalId":39930,"journal":{"name":"Central European Geology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-01-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1556/24.60.2017.013","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43969509","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Geochemical modeling possibilities of CO2 and brine inflow to freshwater aquifers 流入淡水含水层的二氧化碳和盐水的地球化学建模可能性
Central European Geology Pub Date : 2017-12-18 DOI: 10.1556/24.60.2017.014
Zsuzsanna Szabó, N. Gál, Éva Kun, T. Szőcs, G. Falus
{"title":"Geochemical modeling possibilities of CO2 and brine inflow to freshwater aquifers","authors":"Zsuzsanna Szabó, N. Gál, Éva Kun, T. Szőcs, G. Falus","doi":"10.1556/24.60.2017.014","DOIUrl":"https://doi.org/10.1556/24.60.2017.014","url":null,"abstract":"In worst-case leakage scenarios of CO2 geological storage, CO2 or brine may contaminate shallower drinking water aquifers. This work applies an advanced geochemical modeling methodology to predict ...","PeriodicalId":39930,"journal":{"name":"Central European Geology","volume":"60 1","pages":"289-298"},"PeriodicalIF":0.0,"publicationDate":"2017-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1556/24.60.2017.014","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44217744","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Application of artificial neural networks for lithofacies determination based on limited well data 基于有限井数据的人工神经网络在岩相确定中的应用
Central European Geology Pub Date : 2017-12-05 DOI: 10.1556/24.60.2017.012
Ana Brcković, Monika Kovačević, M. Cvetkovic, Iva Kolenković Močilac, D. Rukavina, B. Saftić
{"title":"Application of artificial neural networks for lithofacies determination based on limited well data","authors":"Ana Brcković, Monika Kovačević, M. Cvetkovic, Iva Kolenković Močilac, D. Rukavina, B. Saftić","doi":"10.1556/24.60.2017.012","DOIUrl":"https://doi.org/10.1556/24.60.2017.012","url":null,"abstract":"Lithofacies definition in the subsurface is an important factor in modeling, regardless of the scale being at reservoir or basin level. In areas with low exploration level, modeling of lithofacies distribution presents a complicated task as very few inputs are available. For this purpose, a case study in the Požega Valley was selected with only one existing well and several seismic sections within an area covering roughly 850 km2. For the task of expanding the input data set for lithofacies modeling, neural network analysis was performed that incorporated interpreted lithofacies (sandstone, siltite, marl, and breccia-conglomerate) in a single well and attribute data gathered from a seismic section. Three types of different neural networks were used for the analysis: multilayer perceptron, radial-basis function, and probabilistic neural network. As a result, three lithofacies models were built alongside a seismic section based upon predictions acquired from the neural networks. Three lithofacies were succe...","PeriodicalId":39930,"journal":{"name":"Central European Geology","volume":"60 1","pages":"299-315"},"PeriodicalIF":0.0,"publicationDate":"2017-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1556/24.60.2017.012","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49355394","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 10
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