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作者:Anne-Marie Wefing , Jennifer Arps , Patrick Blaser ...
来源:[J].Chemical Geology(IF 3.154), 2017, Vol.475, pp.140-148
摘要:Abstract(#br)High-precision U-series dating of scleractinian cold-water corals is a key chronological tool for studies of past environmental and climate conditions. Here, we tested and optimized an automated chemical extraction system (ESI prepFAST-MC equipped with an Eichrom T...
作者:Antonis Bartsiokas , Juan Luis Arsuaga , Maxime Aubert ...
来源:[J].Journal of Human Evolution(IF 4.094), 2017, Vol.109, pp.22-29
摘要:Abstract(#br)Laser ablation U-series dating results on a human cranial bone fragment from Apidima, on the western cost of the Mani Peninsula, Southern Greece, indicate a minimum age of 160,000 years. The dated cranial fragment belongs to Apidima 2, which preserves the facial skel...
作者:Massimo Esposito , Jean-Louis Reyss , Yaowalak Chaimanee ...
来源:[J].Journal of Archaeological Science(IF 1.889), 2002, Vol.29 (4), pp.341-349
摘要:... on the other hand, previous U-series dating of carbonates furnished a lower limit for the fossils of about 130 ky.(#br)In order to achieve a better comprehension of the chronology of the cave, the Uranium-series method for absolute age determination has been applied to some c...
作者:Richard Ortega , Richard Maire , Guillaume Devès ...
来源:[J].Earth and Planetary Science Letters(IF 4.349), 2005, Vol.237 (3), pp.911-923
摘要:... This recrystallization process may explain the uranium loss in neogenic calcite deposits and consequently the opening of the geochemical system, which can lead to errors in age dating with the U-series dating method. Uranium loss in recrystallized calcite is one of the imp...
作者:Hua Tu , Guanjun Shen , Xuebing Liu ...
来源:[J].Quaternary International(IF 1.962), 2015
摘要:... This paper reports high-precision mass spectrometric U-series dating of eight calcite samples from the extant cross-section. Based on the dates on the overlying flowstone layers, the hominin teeth should be definitely older than 292 ± 10 ka. Furthermore, as indicated by the ...
作者:Guanjun Shen , Wei Wang , Qian Wang ...
来源:[J].Journal of Human Evolution(IF 4.094), 2002, Vol.43 (6), pp.817-829
摘要:... Here we present the results of stratigraphic studies and U-series dating of the Tongtianyan Cave, the discovery site of the Liujiang hominid, which represents one of the few well-preserved fossils of modern Homo sapiens in China. The human fossils are inferred to come fro...
作者:Helena Hercman , Michał Gradziński , Pavel Bella
来源:[J].Geochronometria(IF 1.653), 2008, Vol.32 (-1), pp.1-12
摘要:Evolution of Brestovská Cave Based on U-Series Dating of Speleothems The U-series dating indicates five episodes of flowstone growth in Brestovská Cave, namely: ca. 200 ka, ca. 128-88 ka, ca. 82-65 ka, ca. 64-50 ka, and during the Holocene. The age of flowstones and their ...
作者:M. Sambridge , R. Grün , S. Eggins
来源:[J].Quaternary Geochronology(IF 4.015), 2012, Vol.9, pp.42-53
摘要:Abstract(#br)A new theory is described for the uptake of U in an open system applied to the dating of archaeological bones. Analytical solutions are obtained for the rate of radioactive decay of 238 U, 234 U and 230 Th as a function of position for the case where both 238 U and...
作者:J.M. Alcaraz-Pelegrina , A. Martínez-Aguirre , J. Rodríguez-Vidal
来源:[J].Applied Radiation and Isotopes(IF 1.179), 2012, Vol.70 (10), pp.2275-2281
摘要:Abstract(#br)The uranium-series method is applied to date relic flowstone from karstic mountains in the south of Spain. Geomorphological mapping shows three staircased erosion surfaces with a typical karst landform. Exhumed flowstones fill the surficial palaeosinkholes and o...
作者:E. Hernández-Mendiola , J.P. Bernal , E. Lounejeva ...
来源:[J].Quaternary Geochronology(IF 4.015), 2011, Vol.6 (6), pp.564-573
摘要:... Our results indicate that ICP-QMS is suitable to obtain valuable meaningful geochronological data, but it is limited to dating samples older than 1 ka, and younger than 400 ka. Our methodology thus represents an attractive alternative to obtain geochonological data to se...

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