Data · collection
The concentration of major elements in fresh gneiss rocks (F) and weathered gneiss rocks (W) from Maitri Station, East Antarctica
Listed in NASA Earthdata CMR
Rock weathering is the breakdown and alteration of rock near the earth's surface to produce materials that are more in equilibrium with newly imposed physico-chemical environments.
Description
Many rocks were originally formed in earth lithosphere at high temperature, high pressure and in the absence of air and water. Therefore, the rock is weathered when it is exposed on the earth's surface.
Climate influences in a major way the types of weathering that will take place in any region. In polar climate the principal weathering is physical. Physical weathering causing the rocks to break into small fragments.
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In contrast, in a tropical climate chemical weathering is very intensive. The alteration of rocks is shown by the development of saprolites and soils. Rock vary in the mineralogy, therefore the type of soil formed is depend on the type of rocks.
Links
Catalogue records · 2
- CMR record cmr.earthdata.nasa.gov/search/concepts/C1214621880-SCIOPS.html ↗
catalogue entry · from NASA CMR
- CMR UMM-JSON cmr.earthdata.nasa.gov/search/concepts/C1214621880-SCIOPS.umm_json ↗
metadata API · from NASA CMR
Topics
- Stated by source
- Chemical Weathering · Not provided · Soil Chemistry · Weathering
- Inferred from text
- Geology 70%
Provenance · 1 source records, 11 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| NASA Earthdata CMR | C1214621880-SCIOPS | 11 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| access_level | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[field].anzsrc:group:3705 | enrichment · NASA CMR | taxonomy-embedding@1.1.0 | title+keywords+description (70%) |
| concepts[measured_variable].gcmd:earth-science/agriculture/soils/soil-chemistry | 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/geochemistry/geochemical-processes/chemical-weathering | 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 |