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Physical and chemical features of red clays in Northern Hungary 匈牙利北部红粘土的物理和化学特征
Acta Geologica Hungarica Pub Date : 2002-10-01 DOI: 10.1556/AGEOL.45.2002.3.4
M. Földvári, P. Kovács-Pálffy
{"title":"Physical and chemical features of red clays in Northern Hungary","authors":"M. Földvári, P. Kovács-Pálffy","doi":"10.1556/AGEOL.45.2002.3.4","DOIUrl":"https://doi.org/10.1556/AGEOL.45.2002.3.4","url":null,"abstract":"In this paper, data on the mineralogical composition of samples and a summary of those results are given (through a more detailed analysis of measurement data by using instrumental phase analytical methods concerning the examined boreholes of the two areas) that allow for the characterization of the loess and red clay sequences. The aim of our study was to characterize and correlate rocks in both areas using instrumental tests performed on samples from borehole drilled in the Hegyhat and Uveghuta areas.","PeriodicalId":107929,"journal":{"name":"Acta Geologica Hungarica","volume":"69 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124707790","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: 9
Physical and chemical features of red clays in Northern Hungary 匈牙利北部红粘土的物理和化学特征
Acta Geologica Hungarica Pub Date : 2002-10-01 DOI: 10.1556/AGEOL.45.2002.3.3
J. Fekete
{"title":"Physical and chemical features of red clays in Northern Hungary","authors":"J. Fekete","doi":"10.1556/AGEOL.45.2002.3.3","DOIUrl":"https://doi.org/10.1556/AGEOL.45.2002.3.3","url":null,"abstract":"Hungarian red clays are the result of soil formation from previous geologic periods. They were spread over areas which were dry during the Tertiary Period and were not covered by sediments. The climate of the Quaternary Period eroded them, so that today they can only be found in areas where they were protected against degradation or where their thickness and resilience could withstand the forces of erosion. Thus, red clays are fossil or relic products of soil formation. Since both their water regime and nutrient supply differ from soils formed in the Holocene, their economic importance is far from negligible; vineyards, forests and arable cultivation can be found on these areas. Their influence may be seen in more extensive territories where they were washed away, settled and became mixed with other soils.","PeriodicalId":107929,"journal":{"name":"Acta Geologica Hungarica","volume":"163 ","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114003119","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
Stratigraphic and sedimentological analysis of the Upper Cretaceous sequence of the Zala Basin on the basis of the investigation of the Szilvágy-33 well 在Szilvágy-33井调查的基础上，对扎拉盆地上白垩统层序进行了地层与沉积学分析
Acta Geologica Hungarica Pub Date : 2002-06-01 DOI: 10.1556/AGEOL.45.2002.2.2
Á. Siegl-Farkas, J. Haas
{"title":"Stratigraphic and sedimentological analysis of the Upper Cretaceous sequence of the Zala Basin on the basis of the investigation of the Szilvágy-33 well","authors":"Á. Siegl-Farkas, J. Haas","doi":"10.1556/AGEOL.45.2002.2.2","DOIUrl":"https://doi.org/10.1556/AGEOL.45.2002.2.2","url":null,"abstract":"The Senonian succession of the Szilvagy-33 well in the Northern Zala Basin was investigated in order to re-evaluate its chronostratigraphic subdivision and depositional history. The studied sequence begins with the Ajka Formation of reduced thickness and atypical facies. This is followed by the Jako Formation with the interfingering layers of the Ugod Limestone, and then the approximately 300 m-thick section of the Ugod Limestone which is covered by the Polany Marl. According to the palynologic and nannoplankton investigations, the entire encountered sequence can be assigned to the Campanian. The layers assignable to the Ajka Formation contain the sporomorph assemblage known from the upper section of the Jako Formation in the Bakony basins, clearly indicating a considerable temporal shift of the lithofacies during transgression. The late transgression demonstrated in the Szilvagy-33 well suggests an elevated paleotopography. In contrast to the former assumptions, the transgression may not have reached the...","PeriodicalId":107929,"journal":{"name":"Acta Geologica Hungarica","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132059331","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: 3
Ultrahigh-temperature metamorphism of a buchitized xenolith from the basaltic tuff of Szigliget (Hungary) 匈牙利Szigliget玄武岩凝灰岩中一丁基化捕虏体的超高温变质作用
Acta Geologica Hungarica Pub Date : 2002-06-01 DOI: 10.1556/AGEOL.45.2002.2.3
K. Török
{"title":"Ultrahigh-temperature metamorphism of a buchitized xenolith from the basaltic tuff of Szigliget (Hungary)","authors":"K. Török","doi":"10.1556/AGEOL.45.2002.2.3","DOIUrl":"https://doi.org/10.1556/AGEOL.45.2002.2.3","url":null,"abstract":"A partially molten buchite xenolith containing quartz, glass, mullite/sillimanite, corundum, Al-rich orthopyroxene, spinel, Mg-Al-bearing Fe-Ti oxides, ilmenite and rutile was found in the basaltic tuff of Szigliget (Balaton Highlands, Hungary). The pre-existing rock may have been a quartz-rich micaschist or phyllite from the wall of the magma vent. Minerals like mullite, Al-mullite and Al-rich orthopyroxene with Al2O3 between 7.62 to 11.54 wt% show ultrahigh-temperature (UHT) metamorphism of the xenolith with temperatures in excess of 1080 °C, which means that the temperature of metamorphism approached that of the enclosing alkaline basaltic melt. CO2 fluid inclusions with homogenization temperatures between +26.5 and +29.7 °C and mineral equilibria indicate pressure of buchitization between 310 and 390 MPa.  Glass compositions are similar to a peraluminous leucogranite which is in accordance with melting experiments when metagreywackes, pelites and orthogneisses are involved. The presence of glass sugge...","PeriodicalId":107929,"journal":{"name":"Acta Geologica Hungarica","volume":"89 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126209880","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: 6
Application of the Bootstrap Method for chemical data from the Boda Claystone Formation Bootstrap方法在渤大粘土岩组化学资料中的应用
Acta Geologica Hungarica Pub Date : 2002-06-01 DOI: 10.1556/AGEOL.45.2002.2.5
F. Sebestyén
{"title":"Application of the Bootstrap Method for chemical data from the Boda Claystone Formation","authors":"F. Sebestyén","doi":"10.1556/AGEOL.45.2002.2.5","DOIUrl":"https://doi.org/10.1556/AGEOL.45.2002.2.5","url":null,"abstract":"In this paper we will demonstrate the use and efficiency of the bootstrap on a geologic problem. The tools of classical statistics are often not applicable because they strongly depend on certain conditions that are not fulfilled. Explicit mathematical formulas for standard errors and confidence intervals with respect to a parameter either require some specific (generally normal) distribution, or they do not exist at all. Hypothesis tests may also only be carried out if some conditions are satisfied. Using the bootstrap method one can simulate the unknown distribution of an arbitrary statistic by its bootstrap replicates; hence any characteristics (standard error, confidence intervals, and test significance levels) can be obtained through direct empirical calculations. We applied the bootstrap to the chemical composition data of rock samples from the Boda Claystone Formation, Hungary. First we investigated the distribution of 8 chemical components in a rock sample group of few elements, computing standard...","PeriodicalId":107929,"journal":{"name":"Acta Geologica Hungarica","volume":"52 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115031386","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
Variscan pegmatite and K-Ar and Ar/Ar dating from basement rocks of the Zemplin Unit, Western Carpathians 西喀尔巴阡山脉Zemplin单元基底岩石中Variscan伟晶岩、K-Ar和Ar/Ar定年
Acta Geologica Hungarica Pub Date : 2002-06-01 DOI: 10.1556/AGEOL.45.2002.2.4
S. W. Faryad, K. Balogh
{"title":"Variscan pegmatite and K-Ar and Ar/Ar dating from basement rocks of the Zemplin Unit, Western Carpathians","authors":"S. W. Faryad, K. Balogh","doi":"10.1556/AGEOL.45.2002.2.4","DOIUrl":"https://doi.org/10.1556/AGEOL.45.2002.2.4","url":null,"abstract":"K-Ar age data from minerals (white mica, amphibole, biotite, and feldspar) in metamorphic rocks and pegmatite indicate Variscan metamorphic and magmatic events in the Zemplin Unit. The rocks hosting these minerals are amphibolite, gneiss, micaschist, and pegmatite. This is the first report on the occurrence of pegmatite from this unit, which indicates a Variscan age (≯ 307.9 ± 12.0 Ma) for igneous activity. Amphibolite facies metamorphism is dated based on K-Ar measurement of amphibole from amphibolite that gave age of 338 Ma. K-Ar ages of muscovite and of some amphiboles depend on the degree of mylonitization of the host micaschists and amphibolite, and range from 284.8 ± Ma to 211 ± 9 Ma. Ar/Ar spectrum on a white mica of 227 Ma K-Ar age yielded a ca. 300 Ma plateau-like age and indicates a younger, most likely Alpine overprint. Cretaceous ages of 105 ± 4.2 Ma and 126.6 ± 5.2 Ma were obtained from plagioclase and from white mica concentrate (< 2µm fraction) from strongly mylonitized amphibolite. This su...","PeriodicalId":107929,"journal":{"name":"Acta Geologica Hungarica","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115350753","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
Anisian to Carnian carbonate platform facies and dasycladacean biostratigraphy of the Aggtelek Mts, Northeastern Hungary 匈牙利东北部Aggtelek山脉的安尼期至卡尼期碳酸盐岩台地相与近元陆纲生物地层学
Acta Geologica Hungarica Pub Date : 2002-06-01 DOI: 10.1556/AGEOL.45.2002.2.1
Olga Piros
{"title":"Anisian to Carnian carbonate platform facies and dasycladacean biostratigraphy of the Aggtelek Mts, Northeastern Hungary","authors":"Olga Piros","doi":"10.1556/AGEOL.45.2002.2.1","DOIUrl":"https://doi.org/10.1556/AGEOL.45.2002.2.1","url":null,"abstract":"In the area of the Aggtelek-Rudabanya Mts, limestone and dolomite of reefal and lagoonal facies were formed on a platform, which was continuously deepening from the beginning of the Middle Triassic. The bulk of the limestone is represented by lagoonal formations, extremely rich in dasycladaceans. The reefal formations are of patch reef origin. The almost continuous development and the remarkable abundance of fossils permitted the elaboration of an Anisian-Carnian dasycladacean biostratigraphy. On the basis of investigations 4 assemblage zones could be separated in the Anisian, and 6 in the Ladinian-Carnian. In establishing this biostratigraphy dasycladacean investigations of similar facies areas of the Silica Plateau and the Northern Calcareous Alps were also taken into account.","PeriodicalId":107929,"journal":{"name":"Acta Geologica Hungarica","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126684725","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: 13
Unique Cenozoic lithofacies in the northern part of the Darnó Fault Belt and its surroundings: an overview Darnó断裂带北部及其周围独特的新生代岩相综述
Acta Geologica Hungarica Pub Date : 2002-04-01 DOI: 10.1556/AGEOL.45.2002.1.5
D. Vass
{"title":"Unique Cenozoic lithofacies in the northern part of the Darnó Fault Belt and its surroundings: an overview","authors":"D. Vass","doi":"10.1556/AGEOL.45.2002.1.5","DOIUrl":"https://doi.org/10.1556/AGEOL.45.2002.1.5","url":null,"abstract":"In the area where the Darno Fault belt breaks up as a horsetail fault system in southern Slovakia and northwestern Hungary, beside the dominant lithologies such as calcareous siltstone and claystone several peculiar lithofacies generated in different paleoenvironments of the Buda (Hungarian) Paleogene and Fiľakovo/Petervasara Eggenburgian Basins occur. Laminated limestone and shale classified as oil shale from the village of Drienovec, the Szendro and the Batka vicinities (Eocene-Oligocene and Early Miocene in age) came to existence in coastal lagoons and/or subtidal lagoons under anaerobic conditions at the bottom and affected by seasonal weather changes. The Batka, Novaj, Budikovany, Bretka bioclastic and organogenic limestone units (Kiscellian and Egerian in age respectively) were deposited under shallow marine littoral conditions. The Drienovec and Szuhogy Conglomerate units originated under fluviatile conditions. Almost all mentioned lithologies were generated in genetic (conglomerate) or spatial (oi...","PeriodicalId":107929,"journal":{"name":"Acta Geologica Hungarica","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134397218","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
Significance of the Neo-Vardar Tectonic Zone in the Tertiary structural evolution and paleogeographic changes of the Carpathian Basin 新瓦尔达尔构造带在喀尔巴阡盆地第三纪构造演化和古地理变化中的意义
Acta Geologica Hungarica Pub Date : 2002-04-01 DOI: 10.1556/AGEOL.45.2002.1.4
G. Hámor
{"title":"Significance of the Neo-Vardar Tectonic Zone in the Tertiary structural evolution and paleogeographic changes of the Carpathian Basin","authors":"G. Hámor","doi":"10.1556/AGEOL.45.2002.1.4","DOIUrl":"https://doi.org/10.1556/AGEOL.45.2002.1.4","url":null,"abstract":"The aim of the present summary is the spatial extension of the structural elements of the Vardar System into the inner areas of the Carpathian Basin and the evidence of its Paleogene and Neogene rejuvenations by the method of the paleogeographic reconstruction. Due to the spatial and temporal extension of the system, the concept is introduced into literature with the name of Neo-Vardar. In the present paper, its movements during the Neogene orogenic cycles, its significance in the development of the sedimentary cycles and spatial changes of the facies as well as its effects on the formation of the volcanic cycles are presented, and its determinant role in the formation of the Pannonian Basin and its sub-basins 14.5 million years ago as well as its predictive significance in the exploration of Neogene coal, hydrocarbon and ore deposits are proved.","PeriodicalId":107929,"journal":{"name":"Acta Geologica Hungarica","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124064280","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: 3
Pressure-temperature path of metapelites from the Algyő-Ferencszállás area, SE Hungary: thermobarometric constraints from coexisting mineral assemblages and garnet zoning 匈牙利东南部Algyő-Ferencszállás地区变长岩的压力-温度路径:来自共存矿物组合和石榴石分带的热气压约束
Acta Geologica Hungarica Pub Date : 2002-04-01 DOI: 10.1556/AGEOL.45.2002.1.1
P. Horváth, P. Árkai
{"title":"Pressure-temperature path of metapelites from the Algyő-Ferencszállás area, SE Hungary: thermobarometric constraints from coexisting mineral assemblages and garnet zoning","authors":"P. Horváth, P. Árkai","doi":"10.1556/AGEOL.45.2002.1.1","DOIUrl":"https://doi.org/10.1556/AGEOL.45.2002.1.1","url":null,"abstract":"The polymetamorphic evolution path of metapelites characteristic of the Algyo-Ferencszallas Metamorphic Complex of the Bekes-Codru Unit (SE Hungary) is presented on the basis of microstructural and mineral paragenetic features, mineral chemical data and geothermobarometric calculations. The first (Variscan?) metamorphic event recorded by the Ca-rich part of zoned garnets from the Ferencszallas area is poorly defined, yielding conditions of 520-560 oC and 820-1010 MPa. This event was followed by a new tectonometamorphic phase that began with the formation of garnet, kyanite, muscovite, plagioclase and biotite. This younger (Alpine) event is marked by the decomposition of staurolite and biotite, and an increase in temperature and pressure. Peak metamorphic conditions reached c. 650 oC and 900 MPa in the Ferencszallas and Ujszentivan areas. This P-T peak was followed by continuous decrease in temperature and pressure to c. 500-560 oC and 400-530 MPa. The P-T path calculations from the progressively zoned gar...","PeriodicalId":107929,"journal":{"name":"Acta Geologica Hungarica","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130120198","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: 11
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