Identification info

Metadata Language

English (en)

Dataset Reference Date ()

2020-11-27

Identifier

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

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

Begin date

2017-05-08

End date

2018-07-01

 

Distribution Information

Data format

• Images (JPEG)

  ()

• MS Excel

  ()

 

Quality Scope

dataset

Other

dataset

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

2023-05-11

Metadata standard name

UK GEMINI

Metadata standard version

2.3