{"title":"Permian to Neogene accretion of the assemblage of geologic units presently occurring to the south of the Pannonian Basin - Development of the Vardar Composite Terrane and adjacent units","authors":"S. Karamata, D. Stefanović, B. Krstić","doi":"10.1556/AGEOL.46.2003.1.5","DOIUrl":"https://doi.org/10.1556/AGEOL.46.2003.1.5","url":null,"abstract":"The geologic units presently occurring to the south of the Pannonian Basin are fragments of Eurasia in the east (Moesian Plate), of Gondwana in the southwest (northern part of Adria), terranes docked to them prior to the Permian, as well as relics of oceanic lithosphere that was located between them. Since the Permian these units gradually drifted northward in a steady approach and finally collided, closing the Vardar Ocean, as well as the oceanic realms between them.","PeriodicalId":107929,"journal":{"name":"Acta Geologica Hungarica","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114918157","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}
{"title":"Outline of the geology of Slovenia","authors":"P. Mioč","doi":"10.1556/AGEOL.46.2003.1.2","DOIUrl":"https://doi.org/10.1556/AGEOL.46.2003.1.2","url":null,"abstract":"Taking into consideration the Alps/Dinarides connection, the western part of the Zagorje-Mid-Transdanubian (or Sava) Zone (ZMTZ) in Slovenia, which is located between the Eastern and Southern Alps, includes disconnected outcrops of the northwesternmost Internal Dinaridic units. The northern part of the ZMTZ in Slovenia, which is close to the Periadriatic Lineament, is mainly composed of an Albian-Cenomanian to Late Cretaceous flysch sequence, underlain by Jurassic basinal sediments, which can be correlated to the Sava-Vardar Flysch. The outcrops are located in frontal parts of the Julian-Savinja Nappe. The southern part of the ZMTZ in Slovenia includes the Sava Nappe (or the Slovenian Trough), which is thrust upon the northern margin of the Adriatic-Dinaridic carbonate platform, e.g. the External Dinarides and Southern Alps, respectively. It is composed of Aptian to Cenomanian clastics and carbonates, disconformably overlain by Late Cretaceous carbonate flysch. It can be correlated to the Bosnian Fysch in...","PeriodicalId":107929,"journal":{"name":"Acta Geologica Hungarica","volume":"52 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126594627","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}
{"title":"Iron-rich reevesite from the Ni-Fe ores of Mt. Radočelo, Serbia, a possible new member of the hydrotalcite subgroup","authors":"Z. Maksimović, G. Pantó, G. Nagy","doi":"10.1556/AGEOL.45.2002.4.4","DOIUrl":"https://doi.org/10.1556/AGEOL.45.2002.4.4","url":null,"abstract":"The Ni-Fe ores represent the reworked part of the Paleozoic weathering crust on ultramafics. Talcose serpentinite, with a small accumulation of Ni-talc, represents the lowermost part of the destroyed weathering crust. XRD and EPMA study of the ore revealed its complex composition: magnetite is most abundant, with cores of detrital chromite; Ni-chlorite is also abundant; talc, goethite, hematite, maghemite, magnesite and Fe-rich reevesite occur in variable amounts. XRD of the ore revealed weak reflections of reevesite, with the strongest at 7.60 A. Nine electron probe analyses of this mineral were performed. The richest in nickel gives the following recalculated formula: (Fe2+4.03 Ni1.97)6.00 (Fe3+11.96 Al0.03 Cr0.01)2.00 CO3 (OH)16 . 4H2O. According to this composition, the mineral is the Fe-analog of reevesite and a new member of the Hydrotalcite Group.","PeriodicalId":107929,"journal":{"name":"Acta Geologica Hungarica","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116941106","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}
R. Lukács, G. Czuppon, S. Harangi, C. Szabó, T. Ntaflos, F. Koller
{"title":"Silicate melt inclusions in ignimbrites, Bükkalja Volcanic Field, Northern Hungary - texture and geochemistry","authors":"R. Lukács, G. Czuppon, S. Harangi, C. Szabó, T. Ntaflos, F. Koller","doi":"10.1556/AGEOL.45.2002.4.2","DOIUrl":"https://doi.org/10.1556/AGEOL.45.2002.4.2","url":null,"abstract":"Silicate melt inclusions are frequent in the phenocryst phases (quartz, plagioclase, orthopyroxene, ilmenite and accessory minerals) of the Miocene silicic pyroclastic rocks of the Bukkalja Volcanic Field, Northern Hungary. These melt inclusions were trapped at different stages of magma evolution; therefore, they provide important information on the petrogenetic processes. The melt inclusions in the Bukkalja pyroclastic rocks show various textures such as (1) wholly enclosed type; (2) hourglass inclusions and (3) reentrant or embayment glass. Among the wholly enclosed type melt inclusions further textural subgroups can be distinguished based on their shape: negative crystal, rounded, elongated and irregular shaped. These various textures reflect differences in the time of entrapment prior to eruption and in the post-entrapment condition in the magma chamber. The largest textural variation was found in the quartz-hosted melt inclusions. However, the major element compositions of these melt inclusions do no...","PeriodicalId":107929,"journal":{"name":"Acta Geologica Hungarica","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132201225","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}
{"title":"Heavy mineral assemblages of Senonian formations in the Transdanubian Range, Hungary","authors":"G. Árgyelán, H. Peter","doi":"10.1556/AGEOL.45.2002.4.1","DOIUrl":"https://doi.org/10.1556/AGEOL.45.2002.4.1","url":null,"abstract":"The heavy mineral assemblages and chemistry of detrital spinel grains from the Senonian basin of the Transdanubian Range (TR) were examined and compared with previous results from Jurassic and Lower Cretaceous successions of the Gerecse Mountains of the Transdanubian Range Unit. The heavy minerals recorded that in the area of Transdanubian Range the sedimentary cover, low-grade metamorphic and granitic rocks of the continental crust were eroded in the Coniacian and Santonian. Detritus of high-grade metamorphics was transported to the bathyal basin during Campanian time. The ophiolitic source area indicated by the presence of chrome spinel, ilmenite and magnetite still existed and persisted through the Late Cretaceous. Compared to the low TiO2 content (lower than 0.2 wt%) of detrital spinels from Jurassic and Lower Cretaceous sediments of the Gerecse Mountains, the most characteristic features of spinels in the Senonian sediments are as follows: exceptionally high TiO2 content (about 0.5-4.7 wt%), relativ...","PeriodicalId":107929,"journal":{"name":"Acta Geologica Hungarica","volume":"230 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114382575","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}
{"title":"New method of calculating water balance for the Castle Hill, Buda","authors":"Géza Hajnal","doi":"10.1556/AGEOL.45.2002.4.5","DOIUrl":"https://doi.org/10.1556/AGEOL.45.2002.4.5","url":null,"abstract":"In the previous centuries, a lot of energy has been expended on obtaining scientific data for the Castle Hill, Buda, declared a World Heritage site; however, only few scientists have carried out any hydrological research on the Hill, and of these only the results of Kessler's studies survived in a systematized form. The present paper is the summary of results of hydrologic and hydrogeologic investigations by the author, and provides a water balance model for the entire Hill.","PeriodicalId":107929,"journal":{"name":"Acta Geologica Hungarica","volume":"113 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133880429","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}
{"title":"Paleogene igneous activity along the easternmost segment of the Periadriatic-Balaton Lineament","authors":"K. Benedek","doi":"10.1556/AGEOL.45.2002.4.3","DOIUrl":"https://doi.org/10.1556/AGEOL.45.2002.4.3","url":null,"abstract":"In the Pannonian Basin three Paleogene igneous regions can be outlined, namely the Zala Basin Shear Zone, the Velence Mts and the Recsk Region. These igneous regions are aligned along the easternmost Periadriatic-Balaton Lineament System. The igneous bodies are built up mostly by effusive rocks (andesite, dacite and basaltic andesite); however, intrusive rocks (tonalite, diorite) have been identified as well. The radiometric age of the effusive and intrusive rocks is scattered around 30 Ma, which falls into the range of the igneous bodies aligned along the Periadriatic Line (Bergell, Adamello, Riesenferner, Karawanke, etc.). Nevertheless, an Eocene onset of the magmatic activity in the Pannonian Basin is accepted on the basis of biostratigraphic data. As major and trace element composition range of the Paleogene igneous suites in the Pannonian Basin are basically the same, they are thought to have undergone the same pre-crystallization history. Geochemical characteristics of these calc-alkaline igneous r...","PeriodicalId":107929,"journal":{"name":"Acta Geologica Hungarica","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128350109","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}
{"title":"Micromorphology and mineralogy of the Eocene calcrete gravel from the Mecsek Mountains (S Hungary)","authors":"A. Varga, G. Szakmány, B. Raucsik","doi":"10.1556/AGEOL.45.2002.3.6","DOIUrl":"https://doi.org/10.1556/AGEOL.45.2002.3.6","url":null,"abstract":"Redeposited Eocene calcrete gravel was found in a Miocene conglomerate sequence in the Western Mecsek Mountains, S Hungary. The purpose of this paper is to describe the micromorphological and mineralogical characteristics of these rocks. A large number of calcrete thin sections were analyzed using a petrographic microscope. This study was supplemented by microchemical staining, cathode luminescence examination and X-ray diffraction methods. The diagnostic features identified are rhizoliths (rhizocretion, root cast and root petrifaction), alveolar textures, in situ Microcodium grains, peloids, coated grains and pedogenic voids. According to these micromorphological results the studied calcrete belongs to the group of beta calcretes. The biofabric of this calcrete reflects an extensive vegetation cover and a relatively high degree of biological activity. Micromorphology and mineralogical composition of the calcrete gravels (i.e. dominance of calcite, quartz, illite±muscovite and illite/smectite) suggest a ...","PeriodicalId":107929,"journal":{"name":"Acta Geologica Hungarica","volume":"2 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":"121319638","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}
{"title":"Clay mineralogy of Quaternary sediments covering mountainous and hilly areas of Hungary","authors":"István Viczián","doi":"10.1556/AGEOL.45.2002.3.5","DOIUrl":"https://doi.org/10.1556/AGEOL.45.2002.3.5","url":null,"abstract":"Clay mineral data relating to Quaternary sediments of mountainous and hilly regions of Hungary were collected from published papers and unpublished laboratory reports of the Hungarian Institute of Geology. Predominantly XRD and thermal data were considered. Mineralogy was compared with transport and environmental conditions of deposition of the pelitic material. There is an older, kaolinite-rich and a younger, smectite+illite-rich red clay type covering the karstic surfaces of Aggtelek Mts, Szendro Mts (N Hungary) and Villany Mts (S Transdanubia), indicating warm/humid and warm/arid climatic conditions, respectively. Clear relationships, however, may be confused by multiple redeposition of older weathering crusts. Volcanic ranges are covered by smectite (beidellite)-rich red clay (Matra Mts and foothill areas) and loam (=nyirok, Tokaj Mts). In hilly areas of SE Transdanubia the Pliocene and Lower Pleistocene are represented by the Tengelic Red Clay Fm. which has similar compositional types as on the mount...","PeriodicalId":107929,"journal":{"name":"Acta Geologica Hungarica","volume":"18 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":"130327348","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}
{"title":"The effect of the presence of buried soils and paleosols on the quality of Hungarian soils","authors":"P. Stefanovits","doi":"10.1556/AGEOL.45.2002.3.2","DOIUrl":"https://doi.org/10.1556/AGEOL.45.2002.3.2","url":null,"abstract":"Buried soils are grouped into three categories, namely Holocene soils, Pleistocene ones and those of earlier geologic periods. Buried soils mainly occur on floodplains and in sandy areas in Hungary. Gradual subsidence of the lowland areas and irrationally high rate of deforestation in the catchment regions have resulted in the burial of soils with younger deposits in the floodplain areas; most of the soils buried here are black hydromorphic ones. The major cause of burial in the sandy areas, however, is repeated deposition of the shifting sand. Climatic changes and the beginning cultivation of the originally grassland and forest areas have resulted in the movement and redeposition of the sandy deposits. Most of the Pleistocene-age paleosols have come to light in loess profiles. They can be regarded as remnants of forest soils with varying humus profiles and serve as excellent stratigraphic markers in studies of loess deposits.","PeriodicalId":107929,"journal":{"name":"Acta Geologica Hungarica","volume":"46 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":"124210919","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}