Radiocarbon dating marine sediments
In addition, terrestrial plant remains and shells of living specimens were dated to assess the presence and magnitude of a reservoir effect. A potential indicator for copper production and radiocarbon dating marine sediments of China. Deglaciation of the outer-mid-shelf areas took place before 10 14C ka BP, and was largely controlled by the rising global sea level.
Two lacustrine sediment sequences, La Olla 1 and Laguna del Sauce Grande, on the southern coast of Buenos Aires Province, Argentina, were investigated for carbon reservoir effects, which may influence age-depth chronologies. We performed AMS 14C dating on 20 bulk sediments of a sediment core collected from Grande Valley, on Fildes Peninsula, Antarctica, a typical fjord environment during the Holocene period.
The Holocene marine limit around Antarctica dates to ka BP. The radiocarbon dating marine sediments of the chronology was confirmed by comparing the inferred geochemical and geophysical parameters with previous studies.
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This publication is from a journal that may support self archiving. However, the ages of samples along the sediment core were not in chronological order as they should be.
Fruits of the submerged macrophyte Ruppia cf.
A year record of copper pollution in South China Sea derived from seabird excrements: Publisher conditions are provided by RoMEO. Continued deglaciation occurred gradually over ka BP.
Finally, we successfully applied this method to the selection of bulk sediment dating samples in a sediment core collected in Arctic, which testifies to the its effectiveness. Keywords Asia C 14 Cenozoic Europe Holocene Quaternary United States Western Europe absolute age archaeology carbon charcoal dates geochronology isotopes methods organic compounds radioactive isotopes sediments stable isotopes wood.
In the Chinese feudal era, copper was widely used in coinage and weapons, and its production was coupled with political stability and economic prosperity. The evidence for the continued existence of Abraxas Lake includes a 14C date that significantly predates the Last Glacial Maximum though this cannot be considered direct proof of the existence of the lake prior to the Last Glacial Maximum ; the presence of saline porewater throughout the core, including in compacted sediments deposited during the glacial period, which implies that the lake obtained its salt prior to any Holocene marine highstand; and the occurrence of marine-derived fauna from the onset of significant biological activity late in the Pleistocene.
Thereafter, neoglacial readvances are recorded.
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