Dunkl, István

[["dc.bibliographiccitation.firstpage","121"],["dc.bibliographiccitation.journal","Sedimentary Geology"],["dc.bibliographiccitation.lastpage","126"],["dc.bibliographiccitation.volume","389"],["dc.contributor.author","Stalder, Roland"],["dc.contributor.author","von Eynatten, Hilmar"],["dc.contributor.author","Costamoling, Julian"],["dc.contributor.author","Potrafke, Alexander"],["dc.contributor.author","Dunkl, István"],["dc.contributor.author","Meinhold, Guido"],["dc.date.accessioned","2020-12-10T15:21:17Z"],["dc.date.available","2020-12-10T15:21:17Z"],["dc.date.issued","2019"],["dc.identifier.doi","10.1016/j.sedgeo.2019.06.001"],["dc.identifier.issn","0037-0738"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/16767"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/72975"],["dc.language.iso","en"],["dc.notes.intern","DOI Import GROB-354"],["dc.notes.intern","Merged from goescholar"],["dc.rights","CC BY-NC-ND 4.0"],["dc.rights.uri","https://creativecommons.org/licenses/by-nc-nd/4.0"],["dc.title","OH in detrital quartz grains as tool for provenance analysis: Case studies on various settings from Cambrian to Recent"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","827"],["dc.bibliographiccitation.issue","5"],["dc.bibliographiccitation.journal","Geological Magazine"],["dc.bibliographiccitation.lastpage","840"],["dc.bibliographiccitation.volume","149"],["dc.contributor.author","Fischer, Cornelius"],["dc.contributor.author","Dunkl, Istvan"],["dc.contributor.author","von Eynatten, Hilmar"],["dc.contributor.author","Wijbrans, Jan R."],["dc.contributor.author","Gaupp, Reinhard"],["dc.date.accessioned","2018-11-07T09:06:58Z"],["dc.date.available","2018-11-07T09:06:58Z"],["dc.date.issued","2012"],["dc.description.abstract","Aeolian-fluvial Upper Rotliegend sandstones from Bebertal outcrops (Flechtingen High, North Germany) are an analogue for deeply buried Permian gas reservoir sandstones of the North German Basin (NGB). We present a paragenetic sequence as well as thermochronological constraints to reconstruct the diagenetic evolution and to identify periods of enhanced mesodiagenetic fluid-rock reactions in sandstones from the southern flank of the NGB. Bebertal sandstones show comparatively high concentrations of mesodiagenetically formed K-feldspar but low concentrations of illite cements. Illite-rich grain rims were found to occur preferentially directly below sedimentary bounding surfaces, i.e. aeolian superimposition surfaces, and indicate the lowest intergranular volume. Illite grain rims also indicate sandstone sections with low quartz and feldspar cement concentrations but high loss of intergranular volume due to compaction. Ar-40-Ar-39 age determination of pronounced K-feldspar grain overgrowths and replacements of detrital grains indicates two generations: an early (Triassic) and a late (Jurassic) generation. The latter age range is similar to published diagenetic illite ages from buried Rotliegend reservoir sandstones. The first generation suggests an early intense mesodiagenetic fluid flow with remarkably high K+ activity synchronous with fast burial of proximal, initial graben sediments on the southern flank of the NGB. Accordingly, zircon fission-track data indicate that the strata already reached the zircon partial annealing zone of approximately 200 degrees C during early mesodiagenesis. Zircon (U-Th)/He ages (92 +/- 12 Ma) as well as apatite fission-track ages (similar to 71-75 Ma) indicate the termination of mesodiagenetic processes, caused by rapid exhumation of the Flechtingen High during Late Cretaceous basin inversion."],["dc.identifier.doi","10.1017/S0016756811001087"],["dc.identifier.isi","000307170400006"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/25677"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Cambridge Univ Press"],["dc.relation.issn","0016-7568"],["dc.title","Products and timing of diagenetic processes in Upper Rotliegend sandstones from Bebertal (North German Basin, Parchim Formation, Flechtingen High, Germany)"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","E297"],["dc.bibliographiccitation.issue","9"],["dc.bibliographiccitation.journal","Geology"],["dc.bibliographiccitation.lastpage","E298"],["dc.bibliographiccitation.volume","41"],["dc.contributor.author","Hetzel, Ralf"],["dc.contributor.author","Dunkl, Istvan"],["dc.contributor.author","Haider, Vicky L."],["dc.contributor.author","Strobl, Marcus"],["dc.contributor.author","von Eynatten, Hilmar"],["dc.contributor.author","Ding, Lin"],["dc.contributor.author","Frei, Dirk"],["dc.date.accessioned","2018-11-07T09:20:47Z"],["dc.date.available","2018-11-07T09:20:47Z"],["dc.date.issued","2013"],["dc.identifier.doi","10.1130/G34504Y.1"],["dc.identifier.isi","000323277300006"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/28956"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Geological Soc Amer, Inc"],["dc.relation.issn","0091-7613"],["dc.title","Peneplain formation in southern Tibet predates the India-Asia collision and plateau uplift Reply"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","2025"],["dc.bibliographiccitation.issue","8"],["dc.bibliographiccitation.journal","Economic Geology"],["dc.bibliographiccitation.lastpage","2040"],["dc.bibliographiccitation.volume","110"],["dc.contributor.author","Wolff, R."],["dc.contributor.author","Dunkl, Istvan"],["dc.contributor.author","Kempe, U."],["dc.contributor.author","von Eynatten, Hilmar"],["dc.date.accessioned","2018-11-07T09:47:53Z"],["dc.date.available","2018-11-07T09:47:53Z"],["dc.date.issued","2015"],["dc.description.abstract","The Erzgebirge region of Germany records two major episodes of hydrothermal activity, which includes a Late Carboniferous to Early Permian event associated with significant Sn-W mineralization that is related to late Variscan granite magmatism, and a Mesozoic episode of polymetallic vein mineralization. In contrast to the first event, the age of the younger hydrothermal activity is poorly constrained. For the latter, various geochronological methods yielded a wide age range from Permian to early Tertiary. Here we apply fluorite (U-Th-Sm)/He thermochronology (FHe) on both types of mineralization with a twofold goal: (1) to investigate the sensitivity and applicability of the new FHe method (Evans et al., 2005), and (2) to constrain the thermal history of ore deposits in the Erzgebirge region. Two hundred and thirty-three aliquots from seven mineralization localities have been dated. Fluorite from six deposits yielded Cretaceous FHe ages between 112 to 79 Ma, which are independent of their paragenesis. In contrast, fluorite from the Sadisdorf Sn-W deposit yielded an age of 234 Ma. The younger ages are interpreted as cooling ages indicating the time of the last thermal overprint, including possible hydrothermal activity, in the Erzgebirge. The oldest, Triassic FHe ages at Sadisdorf indicate that the Mesozoic thermal overprint only partially reset the (U-Th-Sm)/He system of the late Variscan mineralization. Thermal modeling based on FHe ages and He diffusion parameters in fluorite results in thermal histories comparable to the results from the well-established apatite-based thermal modeling. This study emphasizes the applicability of fluorite (U-Th-Sm)/He thermochronology, which is especially suited for ore deposits where apatite is lacking."],["dc.description.sponsorship","German Research Foundation (DFG) [DU373/6]"],["dc.identifier.isi","000370768900005"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/35194"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Soc Economic Geologists, Inc"],["dc.relation.issn","1554-0774"],["dc.relation.issn","0361-0128"],["dc.title","The Age of the Latest Thermal Overprint of Tin and Polymetallic Deposits in the Erzgebirge, Germany: Constraints from Fluorite (U-Th-Sm)/He Thermochronology"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","79"],["dc.bibliographiccitation.journal","Journal of Asian Earth Sciences"],["dc.bibliographiccitation.lastpage","98"],["dc.bibliographiccitation.volume","70-71"],["dc.contributor.author","Haider, Vicky L."],["dc.contributor.author","Dunkl, Istvan"],["dc.contributor.author","von Eynatten, Hilmar"],["dc.contributor.author","Ding, Lin"],["dc.contributor.author","Frei, Dirk"],["dc.contributor.author","Zhang, L."],["dc.date.accessioned","2018-11-07T09:23:25Z"],["dc.date.available","2018-11-07T09:23:25Z"],["dc.date.issued","2013"],["dc.description.abstract","Highly elevated and well-preserved peneplains are characteristic geomorphic features of the Tibetan plateau in the northern Lhasa Terrane, north-northwest of Nam Co. The peneplains were carved in granitoids and in their metasedimentary host formations. We use multi-method geochronology (zircon U-Pb and [U-Th]/He dating and apatite fission track and [U-Th]/He dating) to constrain the post-emplacement thermal history of the granitoids and the timing and rate of final exhumation of the peneplain areas. LA-ICP-MS U-Pb geochronology of zircons yields two narrow age groups for the intrusions at around 118 Ma and 85 Ma, and a third group records Paleocene volcanic activity (63-58 Ma) in the Nam Co area. The low-temperature thermochronometers indicate common age groups for the entire Nam Co area: zircon (U-Th)/He ages cluster around 75 Ma, apatite fission track ages around 60 Ma and apatite (U-Th)/He ages around 50 Ma. Modelling of the thermochronological data indicates that exhumation of the basement blocks took place in latest Cretaceous to earliest Paleogene time. By Middle Eocene time the relief was already flat, documented by a thin alluvial sediment sequence covering a part of the planated area. The present-day horst and graben structure of the peneplains is a Late Cenozoic feature triggered by E-W extension of the Tibetan Plateau. The new thermochronological data precisely bracket the age of the planation to Early Eocene, i.e. between ca. 55 and 45 Ma. The erosional base level can be deduced from the presence of Early Cretaceous zircon grains in Eocene strata of Bengal Basin. The sediment generated during exhumation of the Nam Co area was transported by an Early Cenozoic river system into the ocean, suggesting that planation occurred at low elevation. (C) 2013 Elsevier Ltd. All rights reserved."],["dc.description.sponsorship","German Research Foundation (DFG) [DU 373-5]"],["dc.identifier.doi","10.1016/j.jseaes.2013.03.005"],["dc.identifier.isi","000320076600007"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/29574"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Pergamon-elsevier Science Ltd"],["dc.relation.issn","1878-5786"],["dc.relation.issn","1367-9120"],["dc.title","Cretaceous to Cenozoic evolution of the northern Lhasa Terrane and the Early Paleogene development of peneplains at Nam Co, Tibetan Plateau"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","983"],["dc.bibliographiccitation.issue","10"],["dc.bibliographiccitation.journal","Geology"],["dc.bibliographiccitation.lastpage","986"],["dc.bibliographiccitation.volume","39"],["dc.contributor.author","Hetzel, Ralf"],["dc.contributor.author","Dunkl, Istvan"],["dc.contributor.author","Haider, Vicky L."],["dc.contributor.author","Strobl, Marcus"],["dc.contributor.author","von Eynatten, Hilmar"],["dc.contributor.author","Ding, Lin"],["dc.contributor.author","Frei, Dirk"],["dc.date.accessioned","2018-11-07T08:51:33Z"],["dc.date.available","2018-11-07T08:51:33Z"],["dc.date.issued","2011"],["dc.description.abstract","The uplift history of Tibet is crucial for understanding the geodynamic and paleoclimatologic evolution of Asia; however, it remains controversial whether Tibet attained its high elevation before or after India collided with Asia similar to 50 m.y. ago. Here we use thermochronologic and cosmogenic nuclide data from a large bedrock peneplain in southern Tibet to shed light on the timing of the uplift. The studied peneplain, which was carved into Cretaceous granitoids and Jurassic metasediments, is located in the northern Lhasa block at an altitude of similar to 5300 m. Thermal modeling based on (U-Th)/He ages of apatite and zircon, and apatite fission track data, indicate cooling and exhumation of the granitoids between ca. 70 and ca. 55 Ma, followed by a rapid decline in exhumation rate from similar to 300 m/m.y. to similar to 10 m/m.y. between ca. 55 and ca. 48 Ma. Since then, the peneplain has been a rather stable geomorphic feature, as indicated by low local and catchment-wide erosion rates of 6-11 m/m.y. and 11-16 m/m.y., respectively, which were derived from cosmogenic Be-10 concentrations in bedrock, grus, and stream sediment. The prolonged phase of erosion and planation that ended ca. 50 Ma removed 3-6 km of rock from the peneplain region, likely accomplished by laterally migrating rivers. The lack of equivalent sediments in the northern Lhasa block and the presence of a regional unconformity in the southern Lhasa block indicate that the rivers delivered this material to the ocean. This implies that erosion and peneplanation proceeded at low elevation until India's collision with Asia induced crustal thickening, surface uplift, and long-term preservation of the peneplain."],["dc.identifier.doi","10.1130/G32069.1"],["dc.identifier.isi","000294818700022"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/21957"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Geological Soc Amer, Inc"],["dc.relation.issn","0091-7613"],["dc.title","Peneplain formation in southern Tibet predates the India-Asia collision and plateau uplift"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.issue","15"],["dc.bibliographiccitation.journal","Geochimica et Cosmochimica Acta"],["dc.bibliographiccitation.volume","71"],["dc.contributor.author","Dunkl, Istvan"],["dc.contributor.author","Mikes, Tamas"],["dc.contributor.author","Simon, Klaus"],["dc.contributor.author","von Eynatten, Hilmar"],["dc.date.accessioned","2018-11-07T10:59:58Z"],["dc.date.available","2018-11-07T10:59:58Z"],["dc.date.issued","2007"],["dc.format.extent","A243"],["dc.identifier.isi","000248789900499"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/50821"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Pergamon-elsevier Science Ltd"],["dc.publisher.place","Oxford"],["dc.relation.conference","17th Annual V M Goldschmidt Conference"],["dc.relation.eventlocation","Cologne, GERMANY"],["dc.relation.issn","0016-7037"],["dc.title","Data handling, outlier rejection and calculation of isotope concentrations from laser ICP-MS analyses by PEPITA software"],["dc.type","conference_abstract"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","385"],["dc.bibliographiccitation.issue","7"],["dc.bibliographiccitation.journal","Minerals"],["dc.bibliographiccitation.volume","9"],["dc.contributor.author","Lünsdorf, Nils Keno"],["dc.contributor.author","Kalies, Jannick"],["dc.contributor.author","Ahlers, Patrick"],["dc.contributor.author","Dunkl, István"],["dc.contributor.author","von Eynatten, Hilmar"],["dc.date.accessioned","2020-12-10T18:47:16Z"],["dc.date.available","2020-12-10T18:47:16Z"],["dc.date.issued","2019"],["dc.identifier.doi","10.3390/min9070385"],["dc.identifier.eissn","2075-163X"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/16578"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/78700"],["dc.language.iso","en"],["dc.notes.intern","DOI Import GROB-354"],["dc.notes.intern","Merged from goescholar"],["dc.publisher","MDPI"],["dc.relation.eissn","2075-163X"],["dc.rights","CC BY 4.0"],["dc.rights.uri","https://creativecommons.org/licenses/by/4.0"],["dc.title","Semi-Automated Heavy-Mineral Analysis by Raman Spectroscopy"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","103446"],["dc.bibliographiccitation.journal","Global and Planetary Change"],["dc.bibliographiccitation.volume","199"],["dc.contributor.author","Arató, Róbert"],["dc.contributor.author","Obbágy, Gabriella"],["dc.contributor.author","Dunkl, István"],["dc.contributor.author","Józsa, Sándor"],["dc.contributor.author","Lünsdorf, Keno"],["dc.contributor.author","Szepesi, János"],["dc.contributor.author","Molnár, Kata"],["dc.contributor.author","Benkó, Zsolt"],["dc.contributor.author","von Eynatten, Hilmar"],["dc.date.accessioned","2021-06-01T09:41:20Z"],["dc.date.available","2021-06-01T09:41:20Z"],["dc.date.issued","2021"],["dc.identifier.doi","10.1016/j.gloplacha.2021.103446"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/84884"],["dc.language.iso","en"],["dc.notes.intern","DOI-Import GROB-425"],["dc.relation.issn","0921-8181"],["dc.title","Multi-method comparison of modern river sediments in the Pannonian Basin System – A key step towards understanding the provenance of sedimentary basin-fill"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","377"],["dc.bibliographiccitation.issue","3"],["dc.bibliographiccitation.journal","Swiss Journal of Geosciences"],["dc.bibliographiccitation.lastpage","399"],["dc.bibliographiccitation.volume","105"],["dc.contributor.author","Luzar-Oberiter, Borna"],["dc.contributor.author","Mikes, Tamas"],["dc.contributor.author","Dunkl, Istvan"],["dc.contributor.author","Babic, Ljubomir"],["dc.contributor.author","von Eynatten, Hilmar"],["dc.date.accessioned","2018-11-07T09:04:48Z"],["dc.date.available","2018-11-07T09:04:48Z"],["dc.date.issued","2012"],["dc.description.abstract","Scarce basin remnants of Cretaceous synorogenic sediments exposed in the Medvednica, Ivanica, A1/2umberak Mts. and Samobor Hills of northern Croatia record the early orogenic history of the NW Dinarides. The provenance of sandstones from five clastic formations (Otrc, Bistra, Kravljak, Vivodina and Glog) which cover a time span from Early to late Late Cretaceous was studied by combining petrography, whole-rock geochemistry, heavy mineral chemistry and detrital zircon fission track dating. These sediments record at least two major regional thermotectonic events which correlate well with those affecting both the Alps and the Tisza-Dacia unit to the north and east, and the central Dinaride region to the south. Short zircon fission track lag times in Barremian to Albian sediments indicate that continental fragments of the distal Adria plate margin underwent relatively fast, synsedimentary exhumation in the Early Cretaceous. Moreover, a clear dominance of Campanian zircon cooling ages (80-73 Ma) in Maastrichtian sandstones indicates detritus deriving from the erosion of newly and rapidly exhumed basement units which had undergone Late Cretaceous metamorphism in the Eastern Alps and/or the Tisza-Dacia region. Probably, the rapid Maastrichtian erosion generating metamorphic detritus occurred to a great extent on neighbouring Austroalpine basement units, and/or on the upper plate Tisza-Dacia unit during the subduction stage or the initial stages of the continent-continent collision with Adria. Development of the accretionary wedge probably resulted in a renewed availability of ophiolites for erosion within small and/or dynamically changing catchments, which can be deduced from the notable differences in reconstructed source lithologies for the coeval Glog and Vivodina formations. Combined evidence from sedimentary provenance indicators precludes the Dinaride (Adriatic) basement as a significant source for the Maastrichtian sediments."],["dc.identifier.doi","10.1007/s00015-012-0107-3"],["dc.identifier.isi","000312269100004"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/25184"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Springer"],["dc.publisher.place","Basel"],["dc.relation.issn","1661-8726"],["dc.title","Provenance of Cretaceous synorogenic sediments from the NW Dinarides (Croatia)"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]