AMS Radiocarbon and Varve Chronology from the Annually Laminated Sediment Record of Lake Meerfelder Maar, Germany
Issue Date
2000-01-01Keywords
Lake Meerfelder Maarlaminations
Lake Holzmaar
relative age
accelerator mass spectra
planar bedding structures
sedimentary structures
varves
Germany
mass spectra
spectra
Holocene
correlation
chronology
Central Europe
Europe
Cenozoic
Quaternary
C 14
carbon
dates
isotopes
radioactive isotopes
absolute age
Metadata
Show full item recordCitation
Brauer, A., Endres, C., Zolitschka, B., & Negendank, J. F. (2000). AMS radiocarbon and varve chronology from the annually laminated sediment record of Lake Meerfelder Maar, Germany. Radiocarbon, 42(3), 355-368.Journal
RadiocarbonAdditional Links
http://radiocarbon.webhost.uits.arizona.edu/Abstract
The Holocene varve chronology of annually laminated sediment sequences from Lake Meerfelder Maar agree for most of the record with dendro-calibrated accelerator mass spectronomy radiocarbon dates from the same site. Only between 9710 and 9950 cal BP does an offset of 240 yr appear between both data sets. At this position, a micro-disturbance in the varve succession has been detected by thin section analyses and was quantified in terms of missing varves. A comparison with the nearby record from Lake Holzmaar, as well providing high resolution AMS 14C and varve chronologies, revealed that such gaps (ca. 2% in time for the entire Holocene) are exceptional for these long-varved maar lake records. Moreover, since sections of missing years appear for both profiles at different stratigraphic positions, a combination of both the Meerfelder Maar and Holzmaar records enables us to bridge erroneous zones in varve chronologies. This confirms the high potential of two long-varved records in close vicinity to each other for the elimination of dating errors and for increasing chronological precision at a time resolution that is normally regarded as within the counting errors. Late Glacial varve and 14C data beyond the dendro-calibration from Meerfelder Maar and their tentative tele-connections to other high resolution data sets reveal unexplained age discrepancies in the calendar year time scale of about 200 years.Type
Articletext
Language
enISSN
0033-8222ae974a485f413a2113503eed53cd6c53
10.1017/S0033822200030307