Data · dataset · 2024
Lead isotope data for metal artefacts, marls and shales
Listed in Teesside University Research Data Repository
Lead isotope compositions for metal samples 1 to 30 and 32 (31 was excluded) and samples 33–36 (marls, shales) were submitted as small chips.
Description
The samples were analysed by multicollector-inductively coupled plasma mass spectrometry (MC-ICP-MS) at the University of Melbourne, Australia. Samples (1–241 mg) were weighed into Savillex PFA beakers and reacted with 7M HNO3 (2 mL, 120°C, 15 h).
Cu-rich samples formed blue solutions with minor residue while marl/ shale samples produced abundant residue. After drying, the samples were re-dissolved in 0.6M HBr, followed by Pb extraction on small (15 × 0.4 mm) beds of AG1-X8 (100–200 mesh) anion resin, using the HBr-HCl technique. Pb isotope ratios were measured on a Nu Plasma MC-ICP-MS with sample introduction via a low-uptake PFA nebuliser and Aridus desolvator.
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Data were collected using total Pb signal of 10–12 V, and instrumental mass bias was corrected using thallium doping (Woodhead, 2002). The thallium doping technique is expected to yield iPb/204Pb results with an external precision of 0.04%–0.08% (2std dev). This is confirmed by the results for the SRM 981 Pb standard, analysed as unknowns in the same sessions.
Seven analyses of Pb extracted from the BCR-2 reference basalt show greater variability, but the average agrees with the GeoREMpreferred composition (georem.mpch-mainz.gwdg.de) and is consistent with the long-term laboratory average and with TIMS reference data.
Links
Where it is published
- DOI doi.org/10.17632/9k9gd7t3w7.1 ↗
DOI / persistent id · from researchdata tees ac uk
Catalogue records · 1
- OAI-PMH record data.mendeley.com/oai?verb=GetRecord&metadataPrefix=oai_dc&identifier=oai%3Adata… ↗
metadata API · from researchdata tees ac uk
Topics
- From keywords
- Earth & Environmental Science · Engineering · Humanities · Life Sciences · Social Science
- Inferred from text
- Isotope geochemistry 77% · Mass spectrometry 75%
Provenance · 1 source records, 12 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| Teesside University Research Data Repository | oai:data.mendeley.com/9k9gd7t3w7.1 | 12 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| access_level | source · researchdata tees ac uk | connector:researchdata_tees_ac_uk@1.0.0 | |
| concepts[field].anzsrc:field:370303 | enrichment · researchdata tees ac uk | taxonomy-embedding@1.0.0 | title+keywords+description (77%) |
| concepts[field].local:field:earth-environmental | mapping · researchdata tees ac uk | connector:researchdata_tees_ac_uk@1.0.0 | |
| concepts[field].local:field:engineering | mapping · researchdata tees ac uk | connector:researchdata_tees_ac_uk@1.0.0 | |
| concepts[field].local:field:humanities | mapping · researchdata tees ac uk | connector:researchdata_tees_ac_uk@1.0.0 | |
| concepts[field].local:field:life-sciences | mapping · researchdata tees ac uk | connector:researchdata_tees_ac_uk@1.0.0 | |
| concepts[field].local:field:social-science | mapping · researchdata tees ac uk | connector:researchdata_tees_ac_uk@1.0.0 | |
| concepts[modality].local:modality:mass-spectrometry | enrichment · researchdata tees ac uk | keyword-concept-rules@1.0.0 | title+description (75%) |
| description | source · researchdata tees ac uk | connector:researchdata_tees_ac_uk@1.0.0 | /metadata/dc/description |
| license | source · researchdata tees ac uk | connector:researchdata_tees_ac_uk@1.0.0 | /metadata/dc/rights |
| publication_date | source · researchdata tees ac uk | connector:researchdata_tees_ac_uk@1.0.0 | |
| title | source · researchdata tees ac uk | connector:researchdata_tees_ac_uk@1.0.0 | /metadata/dc/title |