Data · collection
Investigation of the factors controlling the distribution of desert varnish in the Wright Valley
Listed in NASA Earthdata CMR
An investigation of the factors controlling the distribution of desert varnish in the Wright Valley, Antarctica was conducted.
Description
Traverses were made on foot throughout the Wright Valley and revealed that desert varnish is found almost exclusively in high altitude areas and is dominantly associated with dolerite. It is considered that the formation of this coating on the rocks is a surface weathering phenomenon resulting from the wind induced forced advection of moisture from the surface of the rock.
This causes the deposition of a thin layer of manganese and iron oxides on the surface of the rock.
Links
Catalogue records · 2
- CMR record cmr.earthdata.nasa.gov/search/concepts/C1214594092-SCIOPS.html ↗
catalogue entry · from NASA CMR
- CMR UMM-JSON cmr.earthdata.nasa.gov/search/concepts/C1214594092-SCIOPS.umm_json ↗
metadata API · from NASA CMR
Topics
- Stated by source
- FIELD INVESTIGATION · FIELD SURVEYS · GROUND-BASED OBSERVATIONS · Igneous Rocks · Not provided · VISUAL OBSERVATIONS · Weathering
- Inferred from text
- Physical geography and environmental geoscience 71%
Provenance · 1 source records, 14 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| NASA Earthdata CMR | C1214594092-SCIOPS | 14 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| access_level | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[field].anzsrc:group:3709 | enrichment · NASA CMR | taxonomy-embedding@1.1.0 | title+keywords+description (71%) |
| 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/weathering | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/solid-earth/rocks-minerals-crystals/igneous-rocks | 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: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 |