Application of the mixing-line model for two components has proved successful to the dating of carbonaceous samples and been extended to the domain of uranium-series chronology, as weU as to the Late Quaternary record...Application of the mixing-line model for two components has proved successful to the dating of carbonaceous samples and been extended to the domain of uranium-series chronology, as weU as to the Late Quaternary records by providing significant scientific data. The experimental studies and preliminary results have been reported by the authors. In this note, a theoretical exposition on the assumption of two-component carbonaceous samples, the criteria and practical cases on the mixing-line model for dating and some related problems are discussed.展开更多
It has yet been a new approach to apply the uranium-series dating method to determination of peat age. In our previous work, preliminary results and corresponding experimental procedures of researches in the feasibili...It has yet been a new approach to apply the uranium-series dating method to determination of peat age. In our previous work, preliminary results and corresponding experimental procedures of researches in the feasibility in this field have been reported. In this article, the uranium-series dating on peat samples, from Yubi profile in the Tengchong Basin is made and the results are basically in agreement with those yielded by 14C dating.展开更多
210Pb dating method is an isotopic chronological method used for determining geological age of the past hundred years. Recently it has played a more and more active role in measuring sedimentation rates of lake facies...210Pb dating method is an isotopic chronological method used for determining geological age of the past hundred years. Recently it has played a more and more active role in measuring sedimentation rates of lake facies, continental slope and shelf, estuary and debouch, as well as the age of snow and ice, in studying recent sedimentation and enrichment of 210Pb in sea-surface micro-layers and in discussing pollution history in the past hundred years. As a result of research, many valuable achievements have been obtained.展开更多
基金Project supported by the Nationsl Natural Science Foundation. of China
文摘Application of the mixing-line model for two components has proved successful to the dating of carbonaceous samples and been extended to the domain of uranium-series chronology, as weU as to the Late Quaternary records by providing significant scientific data. The experimental studies and preliminary results have been reported by the authors. In this note, a theoretical exposition on the assumption of two-component carbonaceous samples, the criteria and practical cases on the mixing-line model for dating and some related problems are discussed.
基金Project supported by the National Natural Science Foundation of China
文摘It has yet been a new approach to apply the uranium-series dating method to determination of peat age. In our previous work, preliminary results and corresponding experimental procedures of researches in the feasibility in this field have been reported. In this article, the uranium-series dating on peat samples, from Yubi profile in the Tengchong Basin is made and the results are basically in agreement with those yielded by 14C dating.
文摘210Pb dating method is an isotopic chronological method used for determining geological age of the past hundred years. Recently it has played a more and more active role in measuring sedimentation rates of lake facies, continental slope and shelf, estuary and debouch, as well as the age of snow and ice, in studying recent sedimentation and enrichment of 210Pb in sea-surface micro-layers and in discussing pollution history in the past hundred years. As a result of research, many valuable achievements have been obtained.
