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This is a Non-Federal dataset covered by different Terms of Use than Data.gov.

The ~400 yr B.P. eruption of Half Cone, a post-caldera composite cone within Aniakchak caldera, Alaska Peninsula

Metadata Updated: July 5, 2023

DGGS Professional Report 126, The ~400 yr B.P. eruption of Half Cone, a post-caldera composite cone within Aniakchak caldera, Alaska Peninsula, presents an investigation of the ~400 yr B.P. Half Cone eruption. This eruption is the largest post-caldera eruption yet identified from the Aniakchak volcano. Our goals for this study are to (1) describe the dispersal and volume of the ~400 yr B.P. Half Cone eruption based on stratigraphic characteristics of the resulting deposits, (2) evaluate the pre-eruption storage conditions of magmas expelled during the ~400 yr B.P. Half Cone eruption based on both whole-rock geochemical analyses of juvenile material and in situ geochemical analyses of mineral and glass regions of deposits, and (3) synthesize stratigraphic and geochemical observations into a chronology for the ~400 yr B.P. eruption. All files are available from the DGGS website: http://doi.org/10.14509/30839.

Access & Use Information

Non-Federal: This dataset is covered by different Terms of Use than Data.gov. License: No license information was provided.

Downloads & Resources

Dates

Metadata Date April 14, 2022
Metadata Created Date July 5, 2023
Metadata Updated Date July 5, 2023
Reference Date(s) January 1, 2022 (publication)
Frequency Of Update notPlanned

Metadata Source

Harvested from Alaska Division of Geological and Geophysical Surveys

Additional Metadata

Resource Type Dataset
Metadata Date April 14, 2022
Metadata Created Date July 5, 2023
Metadata Updated Date July 5, 2023
Reference Date(s) January 1, 2022 (publication)
Responsible Party Alaska Division of Geological & Geophysical Surveys (Point of Contact)
Contact Email
Guid c1a66046-dd00-4525-b0b0-88598512ef1f_source
Access Constraints Use Constraints: Any hard copies or published datasets utilizing these datasets shall clearly indicate their source. If the user has modified the data in any way, the user is obligated to describe the types of modifications the user has made. The user specifically agrees not to misrepresent these datasets, nor to imply that changes made by the user were approved by the State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys. The State of Alaska makes no express or implied warranties (including warranties for merchantability and fitness) with respect to the character, functions, or capabilities of the electronic data or products or their appropriateness for any user's purposes. In no event will the State of Alaska be liable for any incidental, indirect, special, consequential, or other damages suffered by the user or any other person or entity whether from the use of the electronic services or products or any failure thereof or otherwise. In no event will the State of Alaska's liability to the Requestor or anyone else exceed the fee paid for the electronic service or product., Access Constraints: This report, map, and/or dataset is available directly from the State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys (see contact information below).
Bbox East Long -155.785900
Bbox North Lat 58.933900
Bbox South Lat 56.801500
Bbox West Long -158.226500
Coupled Resource
Frequency Of Update notPlanned
Harvest Object Id c1a66046-dd00-4525-b0b0-88598512ef1f
Harvest Source Id 8f77b6d5-f630-4995-bdf3-0aee7158a7f3
Harvest Source Title Alaska Division of Geological and Geophysical Surveys
Licence The State of Alaska makes no expressed or implied warranties (including warranties for merchantability and fitness) with respect to the character, functions, or capabilities of the electronic data or products or their appropriateness for any user's purposes. In no event will the State of Alaska be liable for any incidental, indirect, special, consequential, or other damages suffered by the user or any other person or entity whether from the use of the electronic services or products or any failure thereof or otherwise. In no event will the State of Alaska's liability to the Requestor or anyone else exceed the fee paid for the electronic service or product.
Lineage This lineage was generated by the FGDC CSDGM to 19139 transformation
Metadata Language eng; USA
Metadata Type geospatial
Old Spatial {"type": "Polygon", "coordinates": [[[-158.2265, 56.8015], [-155.7859, 56.8015], [-155.7859, 58.9339], [-158.2265, 58.9339], [-158.2265, 56.8015]]]}
Progress completed
Spatial Data Service Type
Spatial Reference System
Spatial Harvester True

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