Blue Ice Tephra II - Mt. DeWitt, Version 1

This data set is the result of a study of volcanic ash and rock fragment (tephra) layers in exposed blue ice areas on Mt. DeWitt, Antarctica (77.12 deg S, 159.51 deg E). Tephra samples were collected between 15 November 1996 and 15 January 1997.

Data include the following information for each sample site: a general description, electron microprobe analysis, GPS location, neutron activation analysis, and a visual description of the petrography. Data are provided as an Excel 97 data file, (this file is also divided into various text files) and TIF images. Data are available via ftp.

Antarctic ice sheets preserve a record of the volcanic ash layers and chemical aerosol signatures of local and distant volcanic eruptions. Correlation of individual tephra layers, or sets of layers, in blue ice areas will allow a better understanding of the geometry of ice flow in these areas. Tephra layers in deep ice cores can also provide unique time-stratigraphic markers in cores that are difficult to date.

Data e Risorse

Campo Valore
accessLevel public
bureauCode {026:00}
catalog_@context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
catalog_@id https://data.nasa.gov/data.json
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citation Blue Ice Tephra II - Mt. DeWitt, Version 1. Version 1. Archived by National Aeronautics and Space Administration, U.S. Government, National Snow and Ice Data Center. https://doi.org/doi:10.7265/N5GQ6VPV.
identifier C1386208143-NSIDCV0
issued 1996-01-01
landingPage https://doi.org/doi:10.7265/N5GQ6VPV
language {en-US}
metadata_type geospatial
modified 1997-12-31
programCode {026:001}
publisher National Snow and Ice Data Center
resource-type Dataset
source_datajson_identifier true
source_hash ce50b7ee96c66708e3c167c1c6506c2cc0fc2808
source_schema_version 1.1
spatial {"type": "Polygon", "coordinates": [[[-159.51, -77.12], [-159.51, -77.12], [-159.51, -77.12], [-159.51, -77.12], [-159.51, -77.12]]]}
temporal 1996-01-01T00:00:00Z/1997-12-31T23:59:59.999Z
theme {geospatial}
Gruppi
  • AmeriGEOSS
  • National Provider
  • North America
Tag
  • amerigeo
  • amerigeoss
  • ckan
  • cryosphere
  • earth-science
  • geo
  • geoss
  • glaciers-ice-sheets
  • ice-core-records
  • national
  • north-america
  • paleoclimate
  • terrestrial-hydrosphere
  • united-states
isopen False
license_id notspecified
license_title License not specified
maintainer NSIDC Services
maintainer_email nsidc@nsidc.org
metadata_created 2025-11-22T07:31:17.613358
metadata_modified 2025-11-22T07:31:17.613362
notes This data set is the result of a study of volcanic ash and rock fragment (tephra) layers in exposed blue ice areas on Mt. DeWitt, Antarctica (77.12 deg S, 159.51 deg E). Tephra samples were collected between 15 November 1996 and 15 January 1997. Data include the following information for each sample site: a general description, electron microprobe analysis, GPS location, neutron activation analysis, and a visual description of the petrography. Data are provided as an Excel 97 data file, (this file is also divided into various text files) and TIF images. Data are available via ftp. Antarctic ice sheets preserve a record of the volcanic ash layers and chemical aerosol signatures of local and distant volcanic eruptions. Correlation of individual tephra layers, or sets of layers, in blue ice areas will allow a better understanding of the geometry of ice flow in these areas. Tephra layers in deep ice cores can also provide unique time-stratigraphic markers in cores that are difficult to date.
num_resources 3
num_tags 14
title Blue Ice Tephra II - Mt. DeWitt, Version 1