We present a dating method for deep-sea sediments that uses the natural radionuclide Th half-life 75, years in analogy to Pb with the constant rate of supply CRS model. An assessment of age uncertainties resulting from analytical errors using a Monte Carlo approach and an analytical solution for error propagation shows good agreement. We also investigate errors due to a violation of model 210pb dating by variable focusing of deep-sea sediments by means of a simulated core. Finally, we use real examples from independently dated sediment cores containing carbonate, using previously existing Th data, to test the approach. The consideration of the systematic errors and the examples suggests that the uncertainties are smallest in the central part of the record and that the variability of focusing conditions controls the accuracy of the Th CRS dates. Our own example demonstrates an excellent agreement of the Th CRS method with independent age constraints, adding an important tool for dating marine records that does not depend on the presence of carbonate. The obtained values are also suitable to calculate Th-normalized preserved vertical rain rates of various sedimentary compounds, 210pb dating an improved quantitative comparison of marine paleorecords with other archives like ice cores. Browse in GEO-LEOe-docs. Alle Publikationen. Geochemie, Mineralogie, Petrologie. Dating Deep-Sea Sediments With Th Excess Using a Constant Rate of Supply Model. Export Options Show all metadata technical view. Geibert, W. Abstract We present a dating method for deep-sea sediments that uses the natural radionuclide Th half-life 75, years in analogy to Pb with the constant rate of supply CRS model. Subjects dating method deep-sea sediments dust flux opal flux Southern Ocean. Collections Geochemie, Mineralogie, Petrologie.
Kategorie : Radiometrische Datierung. Ähnlich wie in anderen Seen wurden auch im Zürichsee in den obersten 6 cm aller untersuchten Kerne konstante Pb-Aktivitäten festgestellt. Eakins J. Finally, we use real examples from independently dated sediment cores containing carbonate, using previously existing Th data, to test the approach. Tracking Hg historical inputs by Pb geochronology for the Itapessoca Estuarine Complex, Pernambuco, Brazil Article 20 July
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Für diese Seite sind keine Informationen verfügbar. Reconstruction of the pollution history of Mumbai mudflat sediments using magnetic, chemical and Pb dating methods ; Nathani Basavaiah at Indian Institute of. We present a dating method for deep-sea sediments that uses the natural radionuclide Th (half-life 75, years) in analogy to Pb with the constant rate.Die Pb-Datierung sprich BleiDatierung ist eine radiometrische Datierungsmethode für siliziklastische Sedimente. KUeR Report, 25 Jahre Radioaktivitätsüberwachung in der Schweiz, Eidg. Kategorie : Radiometrische Datierung. Mit dem Abschluss von der Atmosphäre wird der Zerfall nicht mehr ausgeglichen. Erten Present address: Dept. Rights and permissions Reprints and permissions. We present a dating method for deep-sea sediments that uses the natural radionuclide Th half-life 75, years in analogy to Pb with the constant rate of supply CRS model. Kommission zur Überwachung der Radioaktivität, Fribourg, Switzerland Abstract We present a dating method for deep-sea sediments that uses the natural radionuclide Th half-life 75, years in analogy to Pb with the constant rate of supply CRS model. Acta 44 , Article CAS Google Scholar Züllig H. Erten, H. Dies wird in der Literatur in der Regel auf Bioturbation oder auf sekundäre Durchmischung der stark wassergesättigten Sedimente bei der Probennahme zurückgeführt. Sedimentary characteristics and organic carbon flux in Nansha Sea area based on Pb dating method Article 27 July Dating Deep-Sea Sediments With Th Excess Using a Constant Rate of Supply Model. Collections Geochemie, Mineralogie, Petrologie. Article Google Scholar. Kelts K. Latitude: Sturm M. An assessment of age uncertainties resulting from analytical errors using a Monte Carlo approach and an analytical solution for error propagation shows good agreement. Als PDF herunterladen Druckversion. Provided by the Springer Nature SharedIt content-sharing initiative. Goldberg publiziert. Erten View author publications. Geochemie, Mineralogie, Petrologie. We also investigate errors due to a violation of model assumptions by variable focusing of deep-sea sediments by means of a simulated core. Tracking Hg historical inputs by Pb geochronology for the Itapessoca Estuarine Complex, Pernambuco, Brazil Article 20 July Swiss journal of hydrology Aims and scope Submit manuscript. Stieg, Amelie ; Biskaborn, Boris K ; Herzschuh, Ulrike ; Strauss, Jens ; Pestryakova, Luidmila A ; Meyer, Hanno : Hydroclimatic anomalies detected by a sub-decadal diatom oxygen isotope record of the last years from Lake Khamra, Siberia.
