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Intra-crystalline protein degradation dating of proboscidean enamel from the UK (NERC Grant NE/K500987/1)

The concentration of both L and D amino acid isomers was determined by HPLC (High-performance liquid chromatography) for multiple amino acids. 30 samples of proboscidean enamel were taken from the collections at BGS. Samples of enamel (~30 mg) was removed from the teeth of proboscideans using a small electric drill. All of the samples were from UK sites dating to the Quaternary. These samples were used to build a regional geochronology based on the extent of racemisation of amino acids from the intra-crystalline fraction (Dickinson, 2018). Thesis http://etheses.whiterose.ac.uk/22261. A published paper 'A new method for enamel amino acid racemization dating: A closed system approach' is also available; https://doi.org/10.1016/j.quageo.2018.11.005

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Identification info

Metadata Language
English (en)
Dataset Reference Date ()
2020-11-27
Identifier

http://data.bgs.ac.uk/id/dataHolding/13607694

 

University of York

-

Marc Dickinson

(

Chemistry Department

)

York

,

YO10 5DD

,
 

British Geological Survey

-

Enquiries


Environmental Science Centre, Nicker Hill, Keyworth

,

NOTTINGHAM

,

NOTTINGHAMSHIRE

,

NG12 5GG

,

United Kingdom

0115 936 3143
0115 936 3276
 

British Geological Survey

-

Enquiries


Environmental Science Centre, Nicker Hill, Keyworth

,

NOTTINGHAM

,

NOTTINGHAMSHIRE

,

NG12 5GG

,

United Kingdom

0115 936 3143
0115 936 3276
Maintenance and update frequency
notApplicable
GEMET - INSPIRE themes
  • Geology
BGS Thesaurus of Geosciences
  • Racemization dating

  • Age determination methods

  • Geochronology

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]"

Spatial representation type
textTable
Topic category
  • Geoscientific information
Extent

ENG

Dataset Reference Date ()
2009

Extent

ENGLAND [id=150000]

Dataset Reference Date ()
1979

N
S
E
W


Begin date
2017-05-08
End date
2018-07-01
 

Spatial Reference System

No information provided.

Distribution Information

Data format
  • Images (JPEG)

    ()

  • MS Excel

    ()

Resource Locator
http://etheses.whiterose.ac.uk/22261
Resource Locator
https://doi.org/10.1016/j.quageo.2018.11.005
Resource Locator
Data
Resource Locator
http://etheses.whiterose.ac.uk/22261
Resource Locator
https://doi.org/10.1016/j.quageo.2018.11.005
Resource Locator
Data
 
Quality Scope
dataset
Other

dataset

Report

Dataset Reference Date ()
2011
Explanation

See the referenced specification

Degree

Report

Dataset Reference Date ()
2010-12-08
Explanation

See http://eur-lex.europa.eu/LexUriServ/LexUriServ.do?uri=OJ:L:2010:323:0011:0102:EN:PDF

Degree
Statement

Samples of enamel (~30 mg) were powdered and exposed to NaOCl (12%) for 72 h. The NaOCl was removed and the powdered enamel was washed 5X with water and 1X with MeOH. Powdered enamel samples were split into 2 fractions. One sample was treated for their free amino acid (FAA) content and the other their total hydrolysable amino acid (THAA) content. THAA samples were dissolved in HCl (7M) and heated at 110 ̊C for 24 h. THAA samples were re-dissolved in HCl (1 M, 20 μLmg−1) and FAA samples were demineralised in HCl (1 M, 25 μLmg−1). KOH (1 M, 28 μLmg−1) was added to the acidified solutions. The sample was centrifuged for 10 min causing a clear supernatant to form above a gel; the biphasic separation. The supernatant was extracted and dried by centrifugal evaporation and analysed by HPLC. All methods are outlined in Dickinson et al., 2019.

Metadata

File identifier
b5a67555-ae07-3623-e054-002128a47908 XML
Metadata Language
English (en)
Resource type
dataset
Metadata Date
2023-03-30
Metadata standard name
UK GEMINI
Metadata standard version

2.3

 

British Geological Survey


Environmental Science Centre,Keyworth

,

NOTTINGHAM

,

NOTTINGHAMSHIRE

,

NG12 5GG

,

United Kingdom

+44 115 936 3100
 
 

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