Data · collection · 1999
Geochemestry of basic magmatism on Byers Peninsula, Antarctica
Listed in NASA Earthdata CMR
In this field campaign 59 samples of volcanic and subvolcanic rocks were collected.
Description
Ten of these samples were analyzed via ICP at the Department of Geology, U. de Chile. The samples are subalkaline rocks ranging in composition between basalt and rhyolite, with a predominance of basaltic to "basaltic-andesitic" magnetism with transitional affinities between tholeitic and calcalkine.
The rocks show a high degree of fractionation and high rates of partial fusion, indicating origin in an island arc tectonic setting. The magnetism of the arc probably occurred during the early Cretaceous to the early Tertiary.
Links
Catalogue records · 2
- CMR record cmr.earthdata.nasa.gov/search/concepts/C1214614901-SCIOPS.html ↗
catalogue entry · from NASA CMR
- CMR UMM-JSON cmr.earthdata.nasa.gov/search/concepts/C1214614901-SCIOPS.umm_json ↗
metadata API · from NASA CMR
Topics
- Stated by source
- Geochemistry · Igneous Rocks · Inductively Coupled Plasma Mass Spectrometer · Magma Composition/Texture · Not provided
Provenance · 1 source records, 13 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| NASA Earthdata CMR | C1214614901-SCIOPS | 11 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| access_level | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[instrument].gcmd_instrument:icp-ms | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/solid-earth/geochemistry | 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[measured_variable].gcmd:earth-science/solid-earth/tectonics/volcanic-activity/eruption-dynamics/magma-composition-texture | 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 |
| 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 |