Bridging the gap between 210Pb and radiocarbon age dating
PEAT319 -21 October 2016
1st DANTE workshop
Dating the ANThropocene in Environmental archives
The workshop aims to present to the paleocommunity the latest achievements in lake, peat and marine geochronology for the Anthropocene, especially on combining 210Pb dates with traditional and bomb-pulse 14C dates.
Overview (background, objectives)
High resolution chronologies are needed for the last 500 years to reconstruct pollutant deposition, calibrate atmospheric transport models, investigate biodiversity changes in the past, understand long term sequestration of organic matter and carbon, validate and calibrate environmental archives-based paleoclimate records with instrumental and monitoring data, amongst others. Traditional sediment dating using conventional radiocarbon for deeper layers and 210Pb for upper layers are the common used geochronological methods. Additional chronomarkers like 137Cs pulse, well-known sedimentary events or relative changes in exotic pollen taxa are also frequently used. Despite that, there are issues on the precision and the quality of the ages provided by all techniques. There is an urgent need to develop and validate an integrated approach to make compatible the results of the resulting chronologies and integrate them into a unique conceptual and numerical approach.
The workshop aims to present to the paleocommunity the latest achievements in lake and peat geochronology for the Anthropocene, especially on combining 210Pb dates with traditional and bomb-pulse 14C dates. The workshop will be divided in 2 parts:
1. Users will be trained using idealized datasets and their own datasets. A special focus will be given on uncertainties and cross-checking between the different geochronological methods to ensure best practice and valuable data.
2. Time will be dedicated for a number of talks, posters and free discussions.
Proposed sessions are:
Confirmed invited speakers/lecturers:
Dr. Maarten Blaauw (Queen's University, Belfast, UK)
Dr. Joan-Albert Sanchez-Cabeza (Universidad Nacional Autonoma de Mexico, Mexico)
Marco Aquino López