Identification info

Metadata Language

English (en)

Dataset Reference Date ()

2022-01-13

Identifier

http://data.bgs.ac.uk/id/dataHolding/13607887

Maintenance and update frequency

notApplicable

GEMET - INSPIRE themes

• Geology

Keywords

• NERC_DDC

Limitations on Public Access

otherRestrictions

Other constraints

licenceOGL

Other constraints

Available under the Open Government Licence subject to the following acknowledgement accompanying the reproduced NERC materials "Contains NERC materials ©NERC [year]"

Use constraints

otherRestrictions

Other constraints

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.

Other constraints

Available under the Open Government Licence subject to the following acknowledgement accompanying the reproduced NERC materials "Contains NERC materials ©NERC [year]"

Topic category

• Geoscientific information

 

Distribution Information

Data format

• MS Excel

  ()

• MS Word

  ()

 

Quality Scope

nonGeographicDataset

Other

non geographic dataset

Statement

We present a new δ13Ccarb framework for the Ediacaran Nama Group of southern Namibia. These data are correlated regionally by combined litho-, chemo-, and sequence stratigraphy, constrained in time using high precision U-Pb ages determined via zircon chemical abrasion isotope dilution thermal ionization mass spectrometry (CA-ID-TIMS). Trends in the Nama reference curve are corelated with δ13Ccarb data from globally distributed sections that are well constrained by interbedded zircon ages, and robust high-resolution regional section correlation, for the interval ~ 551 to 517 Ma in multiple regions. Compiled data act as framework curves to reveal trends in the global data that can be confidently constrained in age. These curves are used to anchor a wider correlation in order to best fit high-resolution δ13Ccarb data from key sections that lack robust radiometric constraints. This allows construction of four possible composite carbon isotope curves and age models, comprising 130 globally distributed sections (Australia, Brazil, Kazakhstan, Mongolia, Morocco, Namibia, Mexico, USA, Canada, Oman, Siberia and South China). These curves are consistent with all reliable radiometric age data and strontium isotope (87Sr/86Sr) records between ~551–517 Ma. All First Appearance Datums (FADs) and, for Ediacaran taxa, Last Appearance Datums (LADs) of key fossil occurrences are calibrated within this framework. This provides the basis for biotic temporal and spatial distributions to be accurately constrained and visualized.

Metadata

File identifier

d6792c84-852b-72c9-e054-002128a47908 XML

Metadata Language

English (en)

Resource type

nonGeographicDataset

Hierarchy level name

non geographic dataset

Metadata Date

2023-03-21

Metadata standard name

UK GEMINI

Metadata standard version

2.3