Geochronological database and classification system for age uncertainties in Neotropical pollen records

Type Article
Date 2016
Language English
Author(s) Flantua S. G. A.1, Blaauw M.2, Hooghiemstra H.1
Affiliation(s) 1 : Univ Amsterdam, Inst Biodivers & Ecosyst Dynam IBED, Res Grp Palaeoecol & Landscape Ecol, Sci Pk 904, NL-1098 XH Amsterdam, Netherlands.
2 : Queens Univ Belfast, Sch Geog Archaeol & Palaeoecol, Belfast, Antrim, North Ireland.
Source Climate Of The Past (1814-9324) (Copernicus Gesellschaft Mbh), 2016 , Vol. 12 , N. 2 , P. 387-414
DOI 10.5194/cp-12-387-2016
WOS© Times Cited 13
Note Special issue : Millennial-scale variability in the American tropics and subtropics Editor(s): D. Urrego, M. Power, J. P. Bernal, and T. Kiefer
Abstract

The newly updated inventory of palaeoecological research in Latin America offers an important overview of sites available for multi-proxy and multi-site purposes. From the collected literature supporting this inventory, we collected all available age model metadata to create a chronological database of 5116 control points (e.g. C-14, tephra, fission track, OSL, Pb-210) from 1097 pollen records. Based on this literature review, we present a summary of chronological dating and reporting in the Neotropics. Difficulties and recommendations for chronology reporting are discussed. Furthermore, for 234 pollen records in northwest South America, a classification system for age uncertainties is implemented based on chronologies generated with updated calibration curves. With these outcomes age models are produced for those sites without an existing chronology, alternative age models are provided for researchers interested in comparing the effects of different calibration curves and age-depth modelling software, and the importance of uncertainty assessments of chronologies is highlighted. Sample resolution and temporal uncertainty of ages are discussed for different time windows, focusing on events relevant for research on centennial- to millennial-scale climate variability. All age models and developed R scripts are publicly available through figshare, including a manual to use the scripts.

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Final revised paper 28 3 MB Open access
Corrigendum 1 82 KB Open access
Supplement to the final revised paper 15 375 KB Open access
Discussion paper 44 2 MB Open access
Supplement to the discussion paper 68 KB Open access
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