摘要:

The boundary between the last two geological epochs, the Pleistocene and the Holocene, is placed at ‘the date 10,000 B.P., measured in radiocarbon years’. In the European chronostratigraphy, this corresponds to the Younger Dryas/Preboreal boundary, the pollen zone III/IV boundary and the Late Glacial/Postglacial boundary. The stratal sequence in the Botanical Garden of Gothenburg is proposed as a suitable boundary‐stratotype of the Pleistocene/Holocene that fulfils the stratigraphical rules of marine environment and accessibility. A core, labelled B 873, has been analyzed for multiple parameters by various authors. The suggested Pleistocene/Holocene boundary in Core B 873 is indicated by a lithologic boundary, a palynological change tentatively correlated with the pollen zone III/IV boundary, and a distinct palaeomagnetic intensity maximum, the ‘Gålön Magnetic Intensity Maximum’, identified in numerous other cores at the Younger Dryas/Preboreal boundary and at the drainage of the Baltic Ice Lake in varved clay sequences (with the peak dated at the drainage ±4 varves). This boundary is closely radiocarbon dated at 10,000 B.P. (10,000–9950 B.P.) in terrestrial‐lacustrine sequences within the proposed type area in Gothenburg and in Southern Sweden, the established type region for the Pleistocene/Holocene boundary. The corresponding varve date is 9965 varves B.P. (De Geer's varve –1073). The various parameters directly and indirectly connected with the study of Core B 873 make global correlations possible. Because every region has its own local characteristics, however, it will be necessary to establish regional type section

ISSN:0300-9483    

DOI:10.1111/j.1502-3885.1976.tb00263.x

出版商:Blackwell Publishing Ltd    

年代:1976

数据来源: WILEY

摘要:

The various problems in defining and dating a Pleistocene/Holocene boundary in Core B 873, proposed as the world boundary‐stratotype by N.‐A. Mörner, are pointed out. It is suggested that a terrestrial‐lacustrine section might be a better alter

ISSN:0300-9483    

DOI:10.1111/j.1502-3885.1976.tb00264.x

出版商:Blackwell Publishing Ltd    

年代:1976

数据来源: WILEY

ISSN:0300-9483    

DOI:10.1111/j.1502-3885.1976.tb00262.x

出版商:Blackwell Publishing Ltd    

年代:1976

数据来源: WILEY