Data · collection
The Ordovician System in Antarctica
Listed in NASA Earthdata CMR
Ordovician rocks were recognized in the Trans Antarctic Mountains, Ross Orogen, inside the sector claimed by Argentina, and close to this area, in the Ellsworth Mountains.
Description
In the Trans Antarctic Mountains, coarse sediments of a probable Ordovician age and radiometrically dated volcanics were recognized. The Pensacola and Patuxent Mounts comprise the Neptune Group, which consists largely of conglomerate to quartzose sandstone.
In Shackleton Range the Blaiklock Group overlies the Shackleton Range Metamorphic Complex. Some other areas like Bowers Terrane and Robertson Bay Terrane display remarkable Ordovician outcrops. The Ross Orogen is largely represented with several magmatic exposures.
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Resumen: EL SISTEMA ORDOVICICO EN ANTARTIDA. En el Territorio Antartico, el Ordovicico ha sido reconocido en localidades en el ambito de los Montes Transantarticos, el denominado orogeno de Ross o Sistema de Ross dentro del sector reclamado por la Republica Argentina y en areas cercanas tales como los montes Ellsworth. En el ambito del los Montes Transantarticos se ha reconocido sedimentos gruesos de probable edad ordovicica y vulcanitas con dataciones radimetricas.
En los Montes Pensacola y Patuxent se encuentra el Grupo Neptuno, el cual incluye conglomerados y areniscas cuarzosas. En los Montes Shackleton el Grupo Glaciar Blailock se apoya sobre el Complejo Metamorfico Montes Shackleton. Algo mas alejadas, se han encontrado afloramientos ordovicos en los Terrenis Bowers, y Bahia Robertson.
La orogenia Ross se encuentra ampliamente distribuida con presencia de rocas magmaticas.
Links
Catalogue records · 2
- CMR record cmr.earthdata.nasa.gov/search/concepts/C1214613380-SCIOPS.html ↗
catalogue entry · from NASA CMR
- CMR UMM-JSON cmr.earthdata.nasa.gov/search/concepts/C1214613380-SCIOPS.umm_json ↗
metadata API · from NASA CMR
Topics
- Stated by source
- Geochemistry · Geomorphic Landforms/Processes · Not provided · Sediment Composition · Topography
Provenance · 1 source records, 12 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| NASA Earthdata CMR | C1214613380-SCIOPS | 15 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| access_level | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/land-surface/erosion-sedimentation/sediment-composition | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/land-surface/geomorphic-landforms-processes | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/land-surface/topography | 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[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 | |
| 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 |