Date ( Creation )

2021-06-28

Identifier

http://data.bgs.ac.uk/id/dataHolding/13607784

Maintenance and update frequency

notApplicable notApplicable

GEMET - INSPIRE themes

• Geology

BGS Thesaurus of Geosciences

• Oxygen isotopes , Iron oxides , Goethite , Weathering , Porphyry copper deposits , Hematite

Keywords

• NERC_DDC

Access constraints

otherRestrictions Other restrictions

Use constraints

otherRestrictions Other restrictions

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 Text, table

Metadata language

English English

Topic category

• Geoscientific information

N

S

E

W

Distribution format

• MS Excel ()

OnLine resource

Data  

Hierarchy level

dataset Dataset

Other

dataset

Statement

Oxygen isotope analysis of 21 hematite(goethite) samples (Spence, 15; Cerro Colorado, 6) was conducted at the SUERC Stable Isotope Facility (East Kilbride) via laser fluorination (e.g. Guiliani et al., 2005). For each measurement, 3–5 mg of hematite(goethite) was heated with a CO2 laser in the presence of a fluorine-based reagent (ClF3). After passing through an in-line Hg-diffusion pump, liberated oxygen was converted to CO2 using a heated rod of platinised graphite. Isotopic measurements were made using a BG Optima dual-inlet mass spectrometer. Isotopic values were calculated using the mass measurements of CO2 isotopologues and are reported as δ18O ‰ vsmow. Calibration on three secondary standards (UWG2, GP147 (international garnet standards), YP2 (internal quartz standard)) gave a standard error of 0.07 and R2=0.9999. Internal uncertainty on the isotopic measurements is <0.1 ‰ (1σ).

gmd:MD_Metadata

File identifier

c68b8657-2491-5206-e054-002128a47908   XML

Metadata language

English English

Hierarchy level

dataset Dataset

Date stamp

2021-12-08

Metadata standard version

2.3

Dataset URI

http://data.bgs.ac.uk/id/dataHolding/13607784