Data · collection
Sediment cores from Lakes Fryxell, Lake Bonney and Lake Joyce, in the McMurdo Dry Valleys, Antarctica
Listed in NASA Earthdata CMR
Cores were taken from lakes in the McMurdo Oasis to identify and date periods of low lake level to add to the existing record of periods of high lake level, with the intention of comparing the isotopic and geochemical record of millenial scale climate change obtained from analysis of the Taylor Dome ice core.
Description
Four basins in the Taylor Valley were cored: Lake Fryxell, East Lobe Lake Bonney, West Lobe Lake Bonney (15 cores in total), and Lake Joyce (1 core).
In addition, old lacustrine beds were mapped and lacustrine carbonate samples from Nausbaum Reigel, Sollas Platform and Pearce Valley were collected for U/He dating.
Links
Catalogue records · 2
- CMR record cmr.earthdata.nasa.gov/search/concepts/C1214593319-SCIOPS.html ↗
catalogue entry · from NASA CMR
- CMR UMM-JSON cmr.earthdata.nasa.gov/search/concepts/C1214593319-SCIOPS.umm_json ↗
metadata API · from NASA CMR
Topics
- Stated by source
- Carbonate · FIELD INVESTIGATION · GROUND-BASED OBSERVATIONS · Isotopes · Isotopes · Lake Levels · Marine Geochemical Processes · Marine Geochemistry · Not provided · SEDIMENT CORERS · Sediments · VISUAL OBSERVATIONS
- Inferred from text
- Palaeoclimatology 78%
Provenance · 1 source records, 19 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| NASA Earthdata CMR | C1214593319-SCIOPS | 13 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| access_level | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[field].anzsrc:field:370904 | enrichment · NASA CMR | taxonomy-embedding@1.1.0 | title+keywords+description (78%) |
| concepts[instrument].gcmd_instrument:sediment-corers | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[instrument].gcmd_instrument:visual-observations | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/oceans/ocean-chemistry/carbonate | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/oceans/ocean-chemistry/marine-geochemistry | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/paleoclimate/ocean-lake-records/isotopes | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/paleoclimate/ocean-lake-records/lake-levels | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/paleoclimate/ocean-lake-records/sediments | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/solid-earth/geochemistry/geochemical-properties/isotopes | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/solid-earth/geochemistry/marine-geochemical-processes | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[platform].gcmd_platform:field-investigation | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[platform].gcmd_platform:ground-based-observations | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[platform].gcmd_platform:not-provided | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| description | source · NASA CMR | connector:nasa_cmr@1.0.0 | /umm/Abstract |
| 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 |