Data · collection
Examination of the distribution of salts in ice free areas of the McMurdo Dry Valleys and Ross Island
Listed in NASA Earthdata CMR
The distribution of salts in the ice free areas of south Victoria Land were plotted and the physical and chemical forms of salts accumulating in these areas was established to determine the origin and mechanism of migration of these salts.
Description
Detailed and systematic sampling of salt deposits was performed at Capes Evans, Royds and Bird, the Dellbridge Islands, Hut Point Peninsula, Mt Erebus (above the contour approximately 400m bleow the summit), Pearce Valley, Lake Bonney area, the Upper Wright Valley, Shapeless Mountain, Lashly Mountains, Mount Metschel, Alligator Peak, Beacon Valley and Rotunda.
More general sampling was performed at Cape Barne, Turks Head, Tryggve Point, Taylor Dry Valley, New Harbour, Marble Point, Lake Vanda area and the Lower Wright Valley. A series of strata of similar form but containing different minerals were also discovered on the Skelton Neve and at Rotunda. Samples of the minerals and the ice host were taken for analysis and crystallography.
Read the rest (3 more)
Samples of salts were collected and sealed into capillary tubes for crystallographic examination. The salt map of the McMurdo Sound area was extended to these new areas and also to the Wright Valley and Marble Point area. Daily samples of the Onyx River were taken during the flow period and were analysed for Na, K, Ca, Mg and Sr in order to obtain an estimate of the annual ion flow into Lake Vanda.
Chemical analyses and crystallographic examination was carried out on over 400 collected samples. Salt and soil samples were collected at Mount Kempe, table Mountain, Knobhead, Lake Bonney, Black Island and Mount Erebus Summit including the plateau and crater area and Fang Glacier. Soil temperature and moisture profiles were measured.
Systematic sampling on and about mudflows and flooding experiments were conducted at Black Island to determine estimates of the rate of salt movement to the surface in this particular location.
Links
Get the data
- pet.gns.cri.nz ↗
Collected samples are held in the PETLAB database of GNS Science. Search under Collector = JR Keys and Country = Antarctica.
download · from NASA CMR
- researcharchive.vuw.ac.nz /handle/10063/760 ↗
This study was pat of a PhD thesis and this is an online link for the thesis of J.R. Keys
download · from NASA CMR
Catalogue records · 2
- CMR record cmr.earthdata.nasa.gov/search/concepts/C1214594110-SCIOPS.html ↗
catalogue entry · from NASA CMR
- CMR UMM-JSON cmr.earthdata.nasa.gov/search/concepts/C1214594110-SCIOPS.umm_json ↗
metadata API · from NASA CMR
Topics
- Stated by source
- FIELD INVESTIGATION · FIELD SURVEYS · GROUND-BASED OBSERVATIONS · Not provided · Sediment Chemistry · Soil Salinity/Soil Sodicity · SOIL SAMPLER · VISUAL OBSERVATIONS
- Inferred from text
- Tabular 65%
Provenance · 1 source records, 15 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| NASA Earthdata CMR | C1214594110-SCIOPS | 15 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| access_level | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[instrument].gcmd_instrument:soil-sampler | 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/land-surface/erosion-sedimentation/sediment-chemistry | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/land-surface/soils/soil-salinity-soil-sodicity | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[modality].local:modality:tabular | enrichment · NASA CMR | keyword-concept-rules@1.0.0 | title+description (65%) |
| concepts[platform].gcmd_platform:field-investigation | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[platform].gcmd_platform:field-surveys | 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 |