Structure · dataset · 2023
Dataset for the article "Temperature dependent loss of noble gases from insoluble organic matter and presolar grains during hydrothermal alteration"
Listed in ETH Zürich Research Collection
The effects of hydrothermal alteration on primordial noble gases were investigated by analysing noble gases in aliquots of insoluble organic matter (IOM) from the Murchison meteorite (CM2) that were hydrothermally altered for different durations (27–163 days) and at a range of temperatures (250–450 °C).
Description
The samples contained Q gases, HL from presolar nanodiamonds, and Ne-E from presolar SiC and graphite. We observed changes in the noble gases that correlated with changes in the experimental reaction temperature.
Losses of Ne-E occurred in samples reacted at 250–300 °C (23 % of the Ne-E present in unaltered samples) and in samples reacted at 350–450 °C (72 %). This indicates that temperature drives degassing of Ne-E from presolar SiC and graphite and that Ne-E can be degassed at temperatures below 400 °C under hydrothermal conditions. Elemental ratios of 20Ne/36Ar correlate with reaction temperature.
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This relationship can be used to estimate the peak hydrothermal alteration temperature experienced, as Ne is predominantly carried in presolar diamonds and Ar in Phase Q, which respond differently to hydrothermal alteration. The calculated temperatures using the correlation between 20Ne/36Ar and temperature and 20Ne/36Ar ratios from previously published data agree well with temperatures in the literature determined by other techniques when ratios are between 0.15 and 0.30.
Therefore 20Ne/36Ar ratios have the potential to be used as a parent body hydrothermal alteration thermometer.
Links
Where it is published
- ETH Zürich Research Collection record hdl.handle.net/20.500.11850/640498 ↗
landing page · from research collection ethz ch
- DOI doi.org/10.3929/ethz-b-000640498 ↗
DOI / persistent id · from research collection ethz ch
Catalogue records · 1
- OAI-PMH record research-collection.ethz.ch/oai?verb=GetRecord&metadataPrefix=oai_dc&identifier=oai%3Awww.… ↗
metadata API · from research collection ethz ch
Topics
- From keywords
- Chemistry · Computer Science & AI · Earth & Environmental Science · Economics & Finance · Engineering · Humanities · Life Sciences · Materials Science · Mathematics & Statistics · Medicine & Health · Physics · Psychology & Behavioral Science · Social Science
- Inferred from text
- Climate change science 69%
Provenance · 1 source records, 19 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| ETH Zürich Research Collection | oai:www.research-collection.ethz.ch:20.500.11850/640498 | 11 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| access_level | source · research collection ethz ch | connector:research_collection_ethz_ch@1.0.0 | |
| concepts[field].anzsrc:group:3702 | enrichment · research collection ethz ch | taxonomy-embedding@1.0.0 | title+keywords+description (69%) |
| concepts[field].local:field:chemistry | mapping · research collection ethz ch | connector:research_collection_ethz_ch@1.0.0 | |
| concepts[field].local:field:computer-science-ai | mapping · research collection ethz ch | connector:research_collection_ethz_ch@1.0.0 | |
| concepts[field].local:field:earth-environmental | mapping · research collection ethz ch | connector:research_collection_ethz_ch@1.0.0 | |
| concepts[field].local:field:economics-finance | mapping · research collection ethz ch | connector:research_collection_ethz_ch@1.0.0 | |
| concepts[field].local:field:engineering | mapping · research collection ethz ch | connector:research_collection_ethz_ch@1.0.0 | |
| concepts[field].local:field:humanities | mapping · research collection ethz ch | connector:research_collection_ethz_ch@1.0.0 | |
| concepts[field].local:field:life-sciences | mapping · research collection ethz ch | connector:research_collection_ethz_ch@1.0.0 | |
| concepts[field].local:field:materials-science | mapping · research collection ethz ch | connector:research_collection_ethz_ch@1.0.0 | |
| concepts[field].local:field:mathematics-statistics | mapping · research collection ethz ch | connector:research_collection_ethz_ch@1.0.0 | |
| concepts[field].local:field:medicine-health | mapping · research collection ethz ch | connector:research_collection_ethz_ch@1.0.0 | |
| concepts[field].local:field:physics | mapping · research collection ethz ch | connector:research_collection_ethz_ch@1.0.0 | |
| concepts[field].local:field:psychology-behavioral | mapping · research collection ethz ch | connector:research_collection_ethz_ch@1.0.0 | |
| concepts[field].local:field:social-science | mapping · research collection ethz ch | connector:research_collection_ethz_ch@1.0.0 | |
| description | source · research collection ethz ch | connector:research_collection_ethz_ch@1.0.0 | /metadata/dc/description |
| license | source · research collection ethz ch | connector:research_collection_ethz_ch@1.0.0 | /metadata/dc/rights |
| publication_date | source · research collection ethz ch | connector:research_collection_ethz_ch@1.0.0 | |
| title | source · research collection ethz ch | connector:research_collection_ethz_ch@1.0.0 | /metadata/dc/title |