Data · collection
GEOLOGY OF LIVINGSTON AND HALF MOON ISLANDS, SOUTH SHETLAND, ANTARCTICA
Listed in NASA Earthdata CMR
ENGLISH Most of the geological features described for the South Shetlands are sustained on isolated and scattered information (except for King George Island).
Description
The goal expected in this project is based on the continuity of the former project and the new obtained data on field information, geochemistry, stable isotopes and geochronology trying to link all into the regional geological and paleogeographical settings. The development of detailed sampling, mapping, profiles and transects will be necessary.
Samples will be processed by petrography and selected ones for geochemistry (major, minor and trace elements), geochronology (Rb/Sr, Ar/K) and stable isotopes (18-O and 13-C). Because one of the main problems in the Shetlands is the positioning with elder maps, it is necessary to make corrections, sometimes very deeply, with GPS technology to made accurate maps. The use of a portable lab for thin sections had demonstrated to be very useful for a better understanding of the lithologies in the field.
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SPANISH La evolucion geologica de las islas Shetland del Sur por el momento se halla sustentada sobre datos aislados e informacion procedente de observaciones de escasa significacion para las modernas tecnologias aplicadas al campo de la geologia y la tectonica. Se pretende profundizar el conocimiento evolutivo de las Shetland sobre bases geoquimicas, geocronologicas y observaciones de campo detalladas, con el fin de integrarlas al contexto regional.
Se torna imprescindible el muestreo prolijo, mapeo y construccion de perfiles o transectas en el terreno. Las muestras se analizan petrograficamente y se seleccionan para su procesamiento en laboratorios para analisis quimicos (mayoritarios, minoritarios y traza) e isotopicos (tanto para geoquimica isotopica -Sr, 18-O, 13-C, Nd, como para geocronologia, metodos Rb/Sr, K/Ar). Como apoyo al desarrollo del Proyecto, y ya se ha efectuado anteriormente (isla Media Luna), es menester efectuar un prolijo posicionamiento con GPS de diversos accidentes geograficos.
En cuanto a las tareas de laboratorio en el terreno, la experiencia demuestra que contar con el laboratorio de cortes petrograficos portatil resulta en un mejor conocimiento la litologia en el terreno su interpretacion, y optimizacion de los muestreos para posteriores analisis.
Links
Catalogue records · 2
- CMR record cmr.earthdata.nasa.gov/search/concepts/C1214620920-SCIOPS.html ↗
catalogue entry · from NASA CMR
- CMR UMM-JSON cmr.earthdata.nasa.gov/search/concepts/C1214620920-SCIOPS.umm_json ↗
metadata API · from NASA CMR
Topics
- Stated by source
- FIELD INVESTIGATION · Geochemistry · Isotopes · Major Elements · Sediment Chemistry · Sediment Composition · Sediments · Sediments · Soil Chemistry · Stratigraphic Sequence · Topography · Trace Elements
- Inferred from text
- Geology 71%
Provenance · 1 source records, 20 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| NASA Earthdata CMR | C1214620920-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:3705 | enrichment · NASA CMR | taxonomy-embedding@1.1.0 | title+keywords+description (71%) |
| 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/erosion-sedimentation/sediment-composition | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/land-surface/erosion-sedimentation/sediments | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/land-surface/erosion-sedimentation/stratigraphic-sequence | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/land-surface/soils/soil-chemistry | 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[measured_variable].gcmd:earth-science/solid-earth/geochemistry/geochemical-properties/isotopes | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/solid-earth/rocks-minerals-crystals/elements/major-elements | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/solid-earth/rocks-minerals-crystals/elements/trace-elements | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/solid-earth/rocks-minerals-crystals/sediments | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[platform].gcmd_platform:field-investigation | 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 |