Data · collection · 2020
Piston Core Xray Florescence (XRF) scan data off the Totten Glacier, Sabrina Coast Antarctica
Listed in NASA Earthdata CMR
Major element analyses of sediment in cores IN2017-V01-A005-PC01 and IN2017-V01-C012-PC05 collected using an Avaatech XRF scanner.
Description
Analyses taken every 50 mm. Piston cores were collected from the continental slope off the Sabrina Coast, seaward of the Totten Glacier.
Cores were split, described and sampled for grain size, diatom assemblages and age dating. The archive half was then scammed using the Avaatech XRF scanner at Australian National University. The scanner works by analysing a spot every 5 cm down core for major elements using Xray Florescence to give an estimate of element abundance in counts per second.
Read the rest (2 more)
This can be converted into weight percent by analysing a calibration set of samples using other techniques (e.g. ICPMS) or to display the relative change in element abundances down core. The full suite of elements are obtained by 3 runs using different source energy levels. The files are labelled according to the energy level (in kv -kilovolts) of the source for 3 runs.
Elements analysed in each run are: 10kv - Al, Si, P, S, Cl, K, Ca, Ti, Cr, Mn, Fe, Rh 30kv - Cu, Zn, Ga, Br, Rb, Sr, Y, Zr, Nb, Mo, Pb, Bi 50kv - Ag, Cd, Sn, Te, Ba.
Links
Get the data
- Download the dataset. data.aad.gov.au/eds/5107/download ↗
download · from NASA CMR
Where it is published
- DOI doi.org/10.26179/5e97d91f0771e ↗
DOI / persistent id · from NASA CMR
Documentation and papers
- data.aad.gov.au /aadc/metadata/citation.cfm?entry_id=AAS_4333_core_XRF ↗
Citation reference for this metadata record and dataset.
documentation · from NASA CMR
- Public information for AAS project AAS_4333 secure3.aad.gov.au/proms/public/projects/report_project_public.cfm?project_no=AAS… ↗
project · from NASA CMR
Catalogue records · 2
- CMR UMM-JSON cmr.earthdata.nasa.gov/search/concepts/C1834759923-AU_AADC.umm_json ↗
metadata API · from NASA CMR
- CMR record cmr.earthdata.nasa.gov/search/concepts/C1834759923-AU_AADC.html ↗
catalogue entry · from NASA CMR
Topics
- Stated by source
- Diatoms · Sediment Chemistry · Sediment Composition · SHIPS · X-Ray Fluorescence Spectrometer
- Inferred from text
- Geochemistry 69%
Provenance · 1 source records, 14 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| NASA Earthdata CMR | C1834759923-AU_AADC | 14 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| access_level | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[field].anzsrc:group:3703 | enrichment · NASA CMR | taxonomy-embedding@1.1.0 | title+keywords+description (69%) |
| concepts[instrument].gcmd_instrument:xrf | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/biological-classification/protists/diatoms | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/oceans/marine-sediments/sediment-chemistry | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/oceans/marine-sediments/sediment-composition | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[platform].gcmd_platform:ships | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| description | source · NASA CMR | connector:nasa_cmr@1.0.0 | /umm/Abstract |
| license_text | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| publication_date | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| spatial | source · NASA CMR | connector:nasa_cmr@1.0.0 | /umm/SpatialExtent |
| temporal | source · NASA CMR | connector:nasa_cmr@1.0.0 | /umm/TemporalExtents |
| title | source · NASA CMR | connector:nasa_cmr@1.0.0 | /umm/EntryTitle |
| version_label | source · NASA CMR | connector:nasa_cmr@1.0.0 |