Nolte, Nicole

[["dc.bibliographiccitation.issue","15"],["dc.bibliographiccitation.journal","Geochimica et Cosmochimica Acta"],["dc.bibliographiccitation.volume","71"],["dc.contributor.author","Kleinhanns, Ilka C."],["dc.contributor.author","Nolte, Nicole"],["dc.contributor.author","Baero, Wiebke"],["dc.contributor.author","Hansen, Bent Tauber"],["dc.date.accessioned","2018-11-07T11:00:00Z"],["dc.date.available","2018-11-07T11:00:00Z"],["dc.date.issued","2007"],["dc.identifier.isi","000248789901197"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/50829"],["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.title","Is dehydration melting responsible for the evolution of high-K granitic melts throughout the Precambrian?"],["dc.type","conference_abstract"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","2491"],["dc.bibliographiccitation.issue","12"],["dc.bibliographiccitation.journal","Meteoritics and Planetary Science"],["dc.bibliographiccitation.lastpage","2516"],["dc.bibliographiccitation.volume","48"],["dc.contributor.author","Arp, Gernot"],["dc.contributor.author","Kolepka, Claudia"],["dc.contributor.author","Simon, Klaus"],["dc.contributor.author","Karius, Volker"],["dc.contributor.author","Nolte, Nicole"],["dc.contributor.author","Hansen, Bent Tauber"],["dc.date.accessioned","2018-11-07T09:16:55Z"],["dc.date.available","2018-11-07T09:16:55Z"],["dc.date.issued","2013"],["dc.description.abstract","The extent of impact-generated hydrothermal activity in the 24km sized Ries impact structure has been controversially discussed. To date, mineralogical and isotopic investigations point to a restriction of hydrothermal activity to the impact-melt bearing breccias, specifically the crater-fill suevite. Here, we present new petrographic, geochemical, and isotopic data of postimpact carbonate deposits, which indicate a hydrothermal activity more extended than previously assumed. Specifically, carbonates of the Erbisberg, a spring mound located upon the inner crystalline ring of the crater, show travertine facies types not seen in any of the previously investigated sublacustrine soda lake spring mounds of the Ries basin. In particular, the streamer carbonates, which result from the encrustation of microbial filaments in subaerial spring effluents between 60 and 70 degrees C, are characteristic of a hydrothermal origin. While much of the primary geochemical and isotopic signatures in the mound carbonates have been obliterated by diagenesis, a postimpact calcite vein from brecciated gneiss of the subsurface crater floor revealed a flat rare earth element pattern with a clear positive Eu anomaly, indicating a hydrothermal fluid convection in the crater basement. Finally, the strontium isotope stratigraphic correlation of the travertine mound with the crater basin succession suggests a hydrothermal activity for about 250,000yr after the impact, which would be much longer than previously assumed."],["dc.identifier.doi","10.1111/maps.12235"],["dc.identifier.isi","000329022100009"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/28045"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.relation.issn","1945-5100"],["dc.relation.issn","1086-9379"],["dc.title","New evidence for persistent impact-generated hydrothermal activity in the Miocene Ries impact structure, Germany"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.issue","13"],["dc.bibliographiccitation.journal","Geochimica et Cosmochimica Acta"],["dc.bibliographiccitation.volume","73"],["dc.contributor.author","Krabbenhoeft, Anja"],["dc.contributor.author","Eisenhauer, A."],["dc.contributor.author","Vollstaedt, H."],["dc.contributor.author","Augustin, N."],["dc.contributor.author","Fietzke, Jan"],["dc.contributor.author","Liebetrau, V."],["dc.contributor.author","Peucker-Ehrenbrink, B."],["dc.contributor.author","Nolte, N."],["dc.contributor.author","Hansen, Bent T."],["dc.date.accessioned","2018-11-07T08:29:15Z"],["dc.date.available","2018-11-07T08:29:15Z"],["dc.date.issued","2009"],["dc.identifier.isi","000267229901620"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/16604"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Pergamon-elsevier Science Ltd"],["dc.publisher.place","Oxford"],["dc.relation.conference","19th Annual VM Goldschmidt Conference"],["dc.relation.eventlocation","Davos, SWITZERLAND"],["dc.title","Ocean Sr-budget from paired delta Sr-88/86 and Sr-87/Sr-86 -ratios"],["dc.type","conference_abstract"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","76"],["dc.bibliographiccitation.journal","Journal of African Earth Sciences"],["dc.bibliographiccitation.lastpage","96"],["dc.bibliographiccitation.volume","92"],["dc.contributor.author","Dill, Harald G."],["dc.contributor.author","Nolte, Nicole"],["dc.contributor.author","Hansen, Bent T."],["dc.date.accessioned","2018-11-07T09:41:58Z"],["dc.date.available","2018-11-07T09:41:58Z"],["dc.date.issued","2014"],["dc.description.abstract","The Neo-Tethyan basin is known for its sediment-hosted Sr deposits in Spain, Turkey, Cyprus, and the Gulf Region. Sediment-hosted Sr-F deposits with base metals formed in the rim sinks and on top of salt domes resulting from halokinesis of Triassic evaporites near the southern edge of the Mediterranean Sea in Tunisia. These evaporites delivered part of the elements, created a basin-and-swell topography and provided the local and regional unconformities to which many of the mineral deposits are related. Five mineralizing processes, each with characteristic sedimentary ore textures, are related to this subsurface salt movement: (1 + 2) Early- and late-stage replacement (\"zebra rocks\"), (3) hydraulic fracturing (\"fitting breccia\" sensu Dill and Weber, 2010b), (4) remobilization (\"spinifex structures\"), and (5) open-space filling (\"caves and vein-like deposits\"). Basinal brines from Mesozoic aquifers delivered Pb, Zn, Cd, REE, Y, Hg, and Se, while Sr, Cs, Be, Li, Cu and Co have been derived from Cenozoic salinas of the Neo-Tethyan basin. Mixing of Mesozoic and Cenozoic brines between 28 and 19 Ma provoked the emplacement of Sr-F mineralization at temperatures below 200 degrees C under strong alkaline conditions. Epigenetic polyphase Sr-F deposits bearing base-metals which are closely related to salt domes (Tunisian-Type) may be traced into epigenetic monophase Sr deposits within bioherms (Cyprus-Type) devoid of Pb, Zn and F. Moving eastward, syndiagenetic monophase Sr deposits in biostromes (Gulf-Type) herald the beginning of Sr concentration in Miocene sabkhas of the Neo-Tethys. The current results are based upon field-related sediment petrography and on mineralogical studies, which were supplemented by chemical studies. The present studies bridge the gap between epigenetic carbonate-hosted MVT and syndiagenetic evaporite deposits, both of which developed during the same time span (Neogene) and were hosted by the same environment (near-shore marine marginal facies of the Neo-Tethys basin). (C) 2014 Elsevier Ltd. All rights reserved."],["dc.identifier.doi","10.1016/j.jafrearsci.2014.01.009"],["dc.identifier.isi","000334009100008"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/33848"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.relation.issn","1879-1956"],["dc.relation.issn","1464-343X"],["dc.title","Lithology, mineralogy and geochemical characterizations of sediment-hosted Sr-F deposits in the eastern Neo-Tethyan region - With special reference to evaporation and halokinesis in Tunisia"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","173"],["dc.bibliographiccitation.issue","3-4"],["dc.bibliographiccitation.journal","GFF"],["dc.bibliographiccitation.lastpage","194"],["dc.bibliographiccitation.volume","133"],["dc.contributor.author","Nolte, Nicole"],["dc.contributor.author","Kleinhanns, Ilka C."],["dc.contributor.author","Baero, Wiebke"],["dc.contributor.author","Hansen, Bent T."],["dc.date.accessioned","2018-11-07T09:01:21Z"],["dc.date.available","2018-11-07T09:01:21Z"],["dc.date.issued","2011"],["dc.description.abstract","Granitoid to syenitoid petrogenesis along the Laurentia-Baltica continental margin occurred in two cycles. Within the Fennoscandian Shield, the first cycle is correlated with the 1.95-1.8 Ga Svecofennian domain and the second is correlated with the 1.85-1.65 Ga Transscandinavian Igneous Belt (TIB). Affiliation of Palaeoproterozoic granitoids to syenitoids (similar to 1.8 Ga) in a transitional zone between the Svecofennian domain to the north and the TIB to the south in the Vastervik area in southeast Sweden, is highly debated. In this study, the Vastervik granitoids to syenitoids have been studied for major and trace element, whole-rock Sm-Nd and U-Pb single zircon isotopic compositions. Field observations, petrography and geochemical composition allow discrimination into five groups ranging from tonalitic to syenogranitic compositions. Geochemical signatures indicate magnesian, metaluminous cordilleran character for three of them, whereas the two most differentiated groups show a transition into ferroan, peraluminous granites with postorogenic or A-type characters. The former three groups may be correlated with the TIB-1 suite at 1.81-1.77 Ga. The older of the A-type groups may be correlated with the TIB-0 suite that intruded at 1.87-1.84 Ga whereas the younger group possibly is related to the so-called granite-pegmatite suite. An earlier tectonic model implies a migration of the subduction zone system to the present southwest. The defined granitoid to syenitoid groups of the Vastervik region fit nicely into the model and support the idea of a new tectonic cycle to the south of the Bergslagen region."],["dc.identifier.doi","10.1080/11035897.2011.629308"],["dc.identifier.isi","000299035100006"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/24410"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.relation.issn","1103-5897"],["dc.title","Petrography and whole-rock geochemical characteristics of Vastervik granitoids to syenitoids, southeast Sweden: constraints on petrogenesis and tectonic setting at the southern margin of the Svecofennian domain"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","321"],["dc.bibliographiccitation.journal","Lithos"],["dc.bibliographiccitation.lastpage","337"],["dc.bibliographiccitation.volume","212"],["dc.contributor.author","Kleinhanns, Ilka C."],["dc.contributor.author","Whitehouse, Martin J."],["dc.contributor.author","Nolte, Nicole"],["dc.contributor.author","Baero, Wiebke"],["dc.contributor.author","Wilsky, F."],["dc.contributor.author","Hansen, Bent T."],["dc.contributor.author","Schoenberg, R."],["dc.date.accessioned","2018-11-07T10:03:45Z"],["dc.date.available","2018-11-07T10:03:45Z"],["dc.date.issued","2015"],["dc.description.abstract","Observed geochemical and geophysical signatures in the southern Svecofennian domain (SD) and the Transscandinavian Igneous Belt (TIE) are explained through a model of tectonic cycling and episodic southwestward migration of a subduction zone system. The Vastervik area is located between these two major tectonic domains and as such has received much attention. Granitoids of the Vastervik area were recently re-grouped and classified within the context of this larger regional tectonic model, but a discrepancy between previous relative age estimations and the few available granitoid age determinations was noted. To address this issue, we have dated 13 granitoid samples using a high spatial resolution secondary ion mass spectrometry (SIMS) U-Pb technique. Our new results constrain the intrusion of the majority of granitoids to 1819-1795 Ma, thus placing them into the TIB-1 period. This age range also encompasses our new ages from the central granodiorite belt and the Oro-Hamno pluton, demonstrating a previous overestimation of older granitoid generations in the Vastervik area. Nonetheless, it is shown that Askersund/TIB-0 magmatism, represented by an augen gneiss sample dated to 1846 Ma, is unambiguously present as far south as the Vastervik region. The anatectically generated leucogranites reveal TIB-1 ages and, as expected, older inherited zircon derived from the parental metasedimentary Vastervik formation. By simple Sr-Nd isotope modeling it is further possible to deduce that most TIB-1 granitoids follow a simple (assimilation-) fractional crystallization petrogenetic trend. The youngest granitoid generation was produced through low-pressure fluid-absent crustal melting. In conclusion, granitoids of the Vastervik area fit well into the proposed model for south-westward migration of a subduction zone system active in the Svecofennian domain and represent a new tectonic cycle. It is therefore possible to link the Svecofennian domain and the Transscandinavian Igneous Belt within a single evolutionary scenario explaining the observed granitoid petrology, geochemistry and geochronology. The study area is located at the edge of a particularly long-lived active continental margin that started to operate during the supercontinent Columbia at ca. 1.8 Ga and the presented model explains how this margin initiated at its eastern end. (C) 2014 Elsevier B.V. All rights reserved."],["dc.description.sponsorship","Carl-Zeiss-Foundation"],["dc.identifier.doi","10.1016/j.lithos.2014.10.013"],["dc.identifier.isi","000348879200022"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/38542"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.relation.issn","1872-6143"],["dc.relation.issn","0024-4937"],["dc.title","Mode and timing of granitoid magmatism in the Vastervik area (SE Sweden, Baltic Shield): Sr-Nd isotope and SIMS U-Pb age constraints"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","1125"],["dc.bibliographiccitation.issue","7-8"],["dc.bibliographiccitation.journal","Geological Society of America Bulletin"],["dc.bibliographiccitation.lastpage","1145"],["dc.bibliographiccitation.volume","125"],["dc.contributor.author","Arp, Gernot"],["dc.contributor.author","Blumenberg, Martin"],["dc.contributor.author","Hansen, Bent Tauber"],["dc.contributor.author","Jung, Dietmar"],["dc.contributor.author","Kolepka, Claudia"],["dc.contributor.author","Lenz, Olaf"],["dc.contributor.author","Nolte, Nicole"],["dc.contributor.author","Poschlod, Klaus"],["dc.contributor.author","Reimer, Andreas"],["dc.contributor.author","Thiel, Volker"],["dc.date.accessioned","2018-11-07T09:22:43Z"],["dc.date.available","2018-11-07T09:22:43Z"],["dc.date.issued","2013"],["dc.description.abstract","Scientific drilling conducted at the inner slope of the Miocene central Ries impact crater recovered a partial section of crater lake sediments. Four sequences were recovered, composed of suevite-derived sandstones, thin lignite seams, bituminous shales, and marlstones to claystones. These flooding-evaporation sequences reflect the impact of short-term climatic fluctuations on a hydrologically closed basin. The superimposed trend from sequences rich in bituminous shales in the lower parts of the section to sequences dominated by organic-poor claystones and intercalated lignites in the upper parts of the section resembles that of the 300-m-thick central crater basin succession, which has previously been considered to reflect a climate-controlled development from an alkaline saline lake to a freshwater lake with temporary coal swamps. In the sediment core of Enkingen, however, the change from bituminous shales to organic-poor claystones with intercalated lignites is associated with a general increase in salinity, as indicated by (1) palynomorphs, (2) increase in delta C-13 of the lipid biomarker archaeol (bis-O-phytanylglycerol), and (3) the occurrence of C-13-enriched C-20/C-25-archaeol (O-phytanyl-O-sesterterpanylglycerol) specific to halophilic Archaea. In addition, the unidirectional trend in Sr-87/Sr-86 of carbonates, declining from ratios of Variscan basement rocks toward marine ratios, indicates a change from (1) weathering of crystalline rocks and suevite to (2) ejected Jurassic sediments (Bunte Breccia) in the catchment area as the major source of ion influx to the lake. From that trend, a change in lake water composition and a general increase in ion concentrations are inferred. These new results can be applied to a reassessment of major parts of the lacustrine succession of the Ries crater. We use these data to propose a new hypothetical model for the chemical and ecological evolution of the Ries crater lake: (1) After the establishment of a stratified brackish eutrophic soda lake due to silicate weathering and evaporation, the increasing influx of waters from the Bunte Breccia carbonate and authigenic silicate precipitation led to a mesotrophic halite lake with marine-like ion ratios and concentrations. (2) Further increase in ions, among them Mg2+ and Sr2+, resulted in hypersaline conditions with gypsum precipitation, low primary production, and phreatic Sr-rich do-lomitization in marginal carbonates. (3) The final, sudden change to oligotrophic freshwater conditions is explained by the formation of an outlet late in the lake history. We conclude that the chemical and ecological evolution of the Ries lake therefore appears to have been mainly controlled by the weathering history of the catchment area, with climate fluctuations causing superimposed cycles. Similarly, changes in terrestrial palynomorph associations may at least partly reflect a change in soil types in the catchment area, from fertile, moist soils on suevite to dry karst soils and soils on Bunte Breccia. These interpretations imply that the initial suevite blanket of the Ries crater was much more continuous and widespread than previously assumed."],["dc.description.sponsorship","Deutsche Forschungsgemeinschaft [AR 335/5, BL 971/1, BL 971/3, Th 713/3]"],["dc.identifier.doi","10.1130/B30731.1"],["dc.identifier.isi","000323270800005"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/29418"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.relation.issn","1943-2674"],["dc.relation.issn","0016-7606"],["dc.title","Chemical and ecological evolution of the Miocene Ries impact crater lake, Germany: A reinterpretation based on the Enkingen (SUBO 18) drill core"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","275"],["dc.bibliographiccitation.issue","2"],["dc.bibliographiccitation.journal","Chemie der Erde - Geochemistry"],["dc.bibliographiccitation.lastpage","297"],["dc.bibliographiccitation.volume","76"],["dc.contributor.author","Dill, Harald G."],["dc.contributor.author","Luna, Liliana I."],["dc.contributor.author","Nolte, Nicole"],["dc.contributor.author","Hansen, Bent T."],["dc.date.accessioned","2018-11-07T10:20:12Z"],["dc.date.available","2018-11-07T10:20:12Z"],["dc.date.issued","2016"],["dc.description.abstract","Epithermal deposits mined for fluorite in Patagonia, Argentina, are closely related to late Triassic through Jurassic magmatic activity which brought about felsic to intermediate magmatic rocks. The fluorite mineralization in the Patagonian epithermal system resulted from gaseous F-and CO2-enriched magmas which lead to an explosive phreatomagmatic volcanism, when getting in contact with groundwater near the surface. As a result of these hydrothermal processes, rapid cooling took place in the epithermal mineralization. Changes in the viscosity along with the cooling down, of mineralizing fluids caused mottled mineral colors blurring the boundaries between the stages and ore textures. The fluids accountable for the main constituents fluorite, quartz, barite and silica were operative over a vertical extension of roughly 600 m. Their temperature of formation dropped from 379 degrees C through 64 degrees C, while the pH decreased from the heat center towards the paleosurface under oxidizing conditions. This steep temperature gradient conducive to the telescoping of mineral associations into each other was accompanied by a rapid loss in CO2, and a mixing of meteoric and magmatic fluids. Even the boundary between the hypogene and supergene alteration cannot be drawn precisely within the assemblage of Mn oxides, which bridge the gap between hypogene and supergen mineralization. The physical-chemical parameters of the fluids, particularly, the redox conditions did not allow sulfides to be preserved. A classification of the epithermal system as to its degree of sulfidation is based on K-feldspar and kaolinite which are present in significant amounts, whereas APS (aluminum-phosphate-sulfate) minerals are absent. Therefore a categorization as an epithermal fluorite deposit of low- to intermediate sulfidation is justified, because the only mineral of economic interest in the system is fluorite. The data obtained during this joint study render the Patagonian fluorite district a reference type of fluorite in an epithermal system of low- to intermediate sulfidation which are widespread in Argentina, e.g., Sierras Pampeanas, and evolved on part of the stable craton, called Gondwana and which grade into epithermal Au, Ag, In, Pb and Zn deposits. (C) 2016 Elsevier GmbH. All rights reserved."],["dc.identifier.doi","10.1016/j.chemer.2016.03.002"],["dc.identifier.isi","000380418000007"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/41831"],["dc.language.iso","en"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.relation.issn","1611-5864"],["dc.relation.issn","0009-2819"],["dc.title","Chemical, isotopic and mineralogical characteristics of volcanogenic epithermal fluorite deposits on the Permo-Mesozoic foreland of the Andean volcanic arc in Patagonia (Argentina)"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","4097"],["dc.bibliographiccitation.issue","14"],["dc.bibliographiccitation.journal","Geochimica et Cosmochimica Acta"],["dc.bibliographiccitation.lastpage","4109"],["dc.bibliographiccitation.volume","74"],["dc.contributor.author","Krabbenhoeft, Anja"],["dc.contributor.author","Eisenhauer, A."],["dc.contributor.author","Boehm, F."],["dc.contributor.author","Vollstaedt, H."],["dc.contributor.author","Fietzke, Jan"],["dc.contributor.author","Liebetrau, V."],["dc.contributor.author","Augustin, N."],["dc.contributor.author","Peucker-Ehrenbrink, B."],["dc.contributor.author","Mueller, M. N."],["dc.contributor.author","Horn, C."],["dc.contributor.author","Hansen, Bent T."],["dc.contributor.author","Nolte, Nicole"],["dc.contributor.author","Wallmann, K."],["dc.date.accessioned","2018-11-07T08:41:20Z"],["dc.date.available","2018-11-07T08:41:20Z"],["dc.date.issued","2010"],["dc.description.abstract","We present strontium (Sr) isotope ratios that, unlike traditional Sr-87/Sr-86 data, are not normalized to a fixed Sr-88/Sr-86 ratio of 8.375209 (defined as delta Sr-88/86 = 0 relative to NIST SRM 987). Instead, we correct for isotope fractionation during mass spectrometry with a Sr-87-Sr-84 double spike. This technique yields two independent ratios for Sr-87/Sr-86 and Sr-88/Sr-86 that are reported as (Sr-87/Sr-86 ) and (delta Sr-88/86), respectively. The difference between the traditional radiogenic (Sr-87/Sr-86 normalized to Sr-88/Sr-86 = 8.375209) and the new Sr-87/Sr-86 values reflect natural mass-dependent isotope fractionation. In order to constrain glacial/interglacial changes in the marine Sr budget we compare the isotope composition of modern seawater ((Sr-87/Sr-86 , delta Sr-88/86)(Seawater)) and modern marine biogenic carbonates ((Sr-87/Sr-86 , delta(88)/Sr-86)(Carbonates)) with the corresponding values of river waters ((Sr-87/Sr-86 , delta Sr-88/86)(River)) and hydrothermal solutions ((Sr-87/Sr-86 , delta(88)/Sr-86)(HydEnd)) in a triple isotope plot. The measured (Sr-87/Sr-86 , delta(88)/Sr-86)(River)). values of selected rivers that together account for similar to 18% of the global Sr discharge yield a Sr flux-weighted mean of (0.7114(8), 0.315(8)parts per thousand). The average ((Sr-87/Sr-86 , delta Sr-88/86)(HydEnd) values for hydrothermal solutions from the Atlantic Ocean are (0.7045(5), 0.27(3)parts per thousand). In contrast, the (Sr-87/Sr-86 , delta Sr-88/86)(Carbonates) values representing the marine Sr output are (0.70926(2), 0.21(2)parts per thousand). We estimate the modern Sr isotope composition of the sources at (0.7106(8), 0.310(8)parts per thousand). The difference between the estimated (Sr-87/Sr-86 , delta Sr-88/86) and (Sr-87/Sr-86 , delta(88)/Sr-86)(output) values reflects isotope disequilibrium with respect to Sr inputs and outputs. In contrast to the modern ocean, isotope equilibrium between inputs and outputs during the last glacial maximum (10-30 ka before present) can be explained by invoking three times higher Sr inputs from a uniquely \"glacial\" source: weathering of shelf carbonates exposed at low sea levels. Our data are also consistent with the \"weathering peak\" hypothesis that invokes enhanced Sr inputs resulting from weathering of postglacial exposure of abundant fine-grained material. (C) 2010 Elsevier Ltd. All rights reserved."],["dc.description.sponsorship","Deutsche Forschungsgemeinschaft, DFG [Ei272/29-1, Ei272/30-1]"],["dc.identifier.doi","10.1016/j.gca.2010.04.009"],["dc.identifier.isi","000278977100015"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/19447"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.relation.issn","0016-7037"],["dc.title","Constraining the marine strontium budget with natural strontium isotope fractionations (Sr-87/Sr-86 , delta Sr-88/86) of carbonates, hydrothermal solutions and river waters"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.issue","15"],["dc.bibliographiccitation.journal","Geochimica et Cosmochimica Acta"],["dc.bibliographiccitation.volume","71"],["dc.contributor.author","Nolte, Nicole"],["dc.contributor.author","Baero, Wiebke"],["dc.contributor.author","Hansen, Bent Tauber"],["dc.contributor.author","Kleinhanns, Ilka C."],["dc.date.accessioned","2018-11-07T11:00:01Z"],["dc.date.available","2018-11-07T11:00:01Z"],["dc.date.issued","2007"],["dc.identifier.isi","000248789901660"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/50833"],["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.title","Stabilisation of continental crust by dehydration melting: An example from the Vastervik area, SE-Sweden"],["dc.type","conference_abstract"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dspace.entity.type","Publication"]]