Bayesian age-depth model for sediment core of Lake Chalco, Mexico (40-0 kcal BP) (NERC Grant NE/S009035/1)
A Bayesian age-depth model was constructed of the radiocarbon dates of the MexiDrill composite core. The age-depth model was produced using rbacon (Blaauw and Christen 2011, Bayesian Analysis 6(3): 457-474, doi: 10.1214/11-BA618), and was run in R as rbacon (CRAN version 3.2.0) using all default settings except for: thick=0.2, depth.units="m", ka=TRUE, acc.mean=2000. The output consists of a pdf of the age-depth model and its settings, a file containing the 95% age ranges, medians and means for every 0.1m of the core depths, a settings file and the .csv file that was used to produce the age-depth model. During the age-modelling, rbacon used the IntCal20 northern hemisphere terrestrial calibration curve (Reimer et al. 2020, Radiocarbon 62, 725-757, doi:10.1017/RDC.2020.41).
non geographic dataset
:
http://data.bgs.ac.uk/id/dataHolding/13608177
English
Geoscientific information
GEMET - INSPIRE themes, version 1.0:
BGS Thesaurus of Geosciences:
NGDC Deposited Data
Carbon dating
Age determination methods
Free:
Free:
NERC_DDC
creation: 2024-01-17
2018-07-01
-
2023-06-30
Queens University Belfast
Dr Maarten Blaauw
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Role: originator
British Geological Survey
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British Geological Survey
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Data Quality
The (uncalibrated) radiocarbon dates and their associated (composite, event-free) depths were input into the Bayesian age-depth modelling software Bacon (Blaauw an Christen 2011 DOI: 10.1214/11-BA618), using the open-source CRAN R package rbacon (https://cran.r-project.org/package=rbacon; version 3.2.0). As calibration curve we used the northern hemisphere terrestrial curve IntCal20 (Reimer et al. 2020, doi:10.1017/RDC.2020.41). All used settings were defaults, except for: section thickness set to 0.2, prior mean accumulation rate 2000, depth units "m", years in kcal BP.
INSPIRE Implementing rules laying down technical arrangements for the interoperability and harmonisation of Geology
Commission Regulation (EU) No 1089/2010 of 23 November 2010 implementing Directive 2007/2/EC of the European Parliament and of the Council as regards interoperability of spatial data sets and services
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The copyright of materials derived from the British Geological Survey's work is vested in the Natural Environment Research Council [NERC]. No part of this work may be reproduced or transmitted in any form or by any means, or stored in a retrieval system of any nature, without the prior permission of the copyright holder, via the BGS Intellectual Property Rights Manager. Use by customers of information provided by the BGS, is at the customer's own risk. In view of the disparate sources of information at BGS's disposal, including such material donated to BGS, that BGS accepts in good faith as being accurate, the Natural Environment Research Council (NERC) gives no warranty, expressed or implied, as to the quality or accuracy of the information supplied, or to the information's suitability for any use. NERC/BGS accepts no liability whatever in respect of loss, damage, injury or other occurence however caused.
Available under the Open Government Licence subject to the following acknowledgement accompanying the reproduced NERC materials "Contains NERC materials ©NERC [year]"
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Metadata about metadata
0f4c7754-48f2-3a60-e063-0937940a0705
British Geological Survey
Environmental Science Centre,Keyworth,
NOTTINGHAM,
NG12 5GG,
United Kingdom
tel: +44 115 936 3100
email:
enquiries@bgs.ac.uk
Role: point of contact
2024-04-24