Data · collection · 1995
Alaska Radiocarbon Data Base; USGS, Menlo Park
Listed in NASA Earthdata CMR
This data base contains published radiocarbon dates with entries consisting of laboratory and reference numbers.
Description
The data set is subdivided into two segments including RCFILE which contains the radiocarbon dates and author citation; and RCBIB which is a complete bibliography of all published dates. The RCFILE can be sorted by date, author citation, latitude and longitude, geographic region, and quadrangle.
The RCFILE is run using the software program 'Nutshell.' The combined size of the two files is 1,092,908 bytes. There are 3,609 radiocarbon age determinations (published ages with a reference). The following is a breakdown of the number of age determinations by geographic region: Northern 997, East-Central 417, West-Central 332, Southern 769, Southwestern 603, Southeastern 448, Offshore 35, and General 8.
Links
Catalogue records · 2
- CMR record cmr.earthdata.nasa.gov/search/concepts/C2231549723-CEOS_EXTRA.html ↗
catalogue entry · from NASA CMR
- CMR UMM-JSON cmr.earthdata.nasa.gov/search/concepts/C2231549723-CEOS_EXTRA.umm_json ↗
metadata API · from NASA CMR
Topics
- Stated by source
- Age Determinations · Isotopes · Not provided · Radiocarbon · Radiocarbon · Sedimentary Rocks · Stratigraphic Sequence · Stratigraphic Sequence · Stratigraphic Sequence · Stratigraphic Sequence
- Inferred from text
- Geology 69%
Provenance · 1 source records, 18 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| NASA Earthdata CMR | C2231549723-CEOS_EXTRA | 15 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 (69%) |
| 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/paleoclimate/land-records/radiocarbon | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/paleoclimate/land-records/stratigraphic-sequence | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/paleoclimate/ocean-lake-records/radiocarbon | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/paleoclimate/ocean-lake-records/stratigraphic-sequence | 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/age-determinations | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/solid-earth/rocks-minerals-crystals/sedimentary-rocks | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/solid-earth/tectonics/plate-tectonics/stratigraphic-sequence | 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 |
| 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 |