Dataset Name

Tephra distribution database

Bibliographic Reference

Mulliken, K.M., Schaefer, J.R., and Cameron, C.E., 2018, Geospatial distribution of tephra fall in Alaska: a geodatabase compilation of published tephra fall occurrences from the Pleistocene to the present: Alaska Division of Geological & Geophysical Surveys Miscellaneous Publication 164, 46 p. https://doi.org/10.14509/29847

Table of Contents

Layer Name: metadata
Layer Description: metadata files, read me files and reports
/metadata/MP164.faq.html
/metadata/MP164.txt
/metadata/MP164.xml

Layer Name: alaska_tephra_database
Layer Description: Comprehensive geospatial database of Pleistocene, Holocene, and historical tephra deposit distribution throughout Alaska, includes geodatabase, ArcMap file, and ArcGIS layer files.
/arc_gis_pub/mp164-layer-files/Alaska Tephra All.lyr
/arc_gis_pub/mp164-layer-files/Aniakchak 1931.lyr
/arc_gis_pub/mp164-layer-files/Aniakchak II CFE.lyr
/arc_gis_pub/mp164-layer-files/Augustine 1976.lyr
/arc_gis_pub/mp164-layer-files/Augustine 2006.lyr
/arc_gis_pub/mp164-layer-files/Augustine Tephra B.lyr
/arc_gis_pub/mp164-layer-files/Augustine Tephra C.lyr
/arc_gis_pub/mp164-layer-files/Augustine Tephra H.lyr
/arc_gis_pub/mp164-layer-files/Augustine Tephra I.lyr
/arc_gis_pub/mp164-layer-files/Augustine Tephra M.lyr
/arc_gis_pub/mp164-layer-files/Crater Peak, Spurr 1953.lyr
/arc_gis_pub/mp164-layer-files/Crater Peak, Spurr 1992.lyr
/arc_gis_pub/mp164-layer-files/Drum Sheep Creek Tephra-F.lyr
/arc_gis_pub/mp164-layer-files/Edgecumbe Dacite (MED).lyr
/arc_gis_pub/mp164-layer-files/Edgecumbe Tephra Set.lyr
/arc_gis_pub/mp164-layer-files/Emmons Lake Volcanic Center Dawson Tephra-C2 CFE.lyr
/arc_gis_pub/mp164-layer-files/Emmons Lake Volcanic Center Old Crow Tephra.lyr
/arc_gis_pub/mp164-layer-files/Fisher Funk Ash CFE.lyr
/arc_gis_pub/mp164-layer-files/Fisher Maar.lyr
/arc_gis_pub/mp164-layer-files/Hayes Oshetna Tephra.lyr
/arc_gis_pub/mp164-layer-files/Hayes Tephra Set H.lyr
/arc_gis_pub/mp164-layer-files/Kaguyak CFE.lyr
/arc_gis_pub/mp164-layer-files/Katmai Lethe Assemblage.lyr
/arc_gis_pub/mp164-layer-files/Mageik Lower Grey Ash.lyr
/arc_gis_pub/mp164-layer-files/Mageik Orange Dacite Lapilli.lyr
/arc_gis_pub/mp164-layer-files/Makushin Driftwood Pumice.lyr
/arc_gis_pub/mp164-layer-files/Mt. Churchill White River Ash-East.lyr
/arc_gis_pub/mp164-layer-files/Mt. Churchill White River Ash-North.lyr
/arc_gis_pub/mp164-layer-files/Mt. Churchill White River Ash-all.lyr
/arc_gis_pub/mp164-layer-files/Novarupta 1912 CFE.lyr
/arc_gis_pub/mp164-layer-files/Okmok 2008.lyr
/arc_gis_pub/mp164-layer-files/Okmok Middle Scoria.lyr
/arc_gis_pub/mp164-layer-files/Pavlof general.lyr
/arc_gis_pub/mp164-layer-files/Redoubt 1966.lyr
/arc_gis_pub/mp164-layer-files/Redoubt 1989-1990.lyr
/arc_gis_pub/mp164-layer-files/Redoubt 2009.lyr
/arc_gis_pub/mp164-layer-files/Shishaldin 1999.lyr
/arc_gis_pub/mp164-layer-files/Ukinrek Maars 1977.lyr
/arc_gis_pub/mp164-layer-files/Unknown vent Lower Ash Layer.lyr
/arc_gis_pub/mp164-layer-files/Unknown vent Middle Basic Layer.lyr
/arc_gis_pub/mp164-layer-files/Unknown vent Variegated Tephra.lyr
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Supplemental Information


 >alaska_tephra_contours: polylines representing digitized tephra fall contours
 >alaska_tephra_footprints: polygons representing maximum tephra fall distribution extents
 >geodiva_stations_12072017: points that represent tephra sample locations
 >table_alaska_tephra_contours_figures: list of figures with data that was digitized, with figures attached for user reference
 >table_geodiva_samples_12072017: list of tephra samples and metadata
 >table_references: list of references for all digitized data
 >relationship_classes: geodatabase relationship classes that associate feature classes/tables to each other
 >layer-files: layer files provide pre-queried data on deposit contours, maximum distribution footprints, tephra sample locations, and vent locations.

Metadata

Metadata is the data about the data and answers "Who, what, when, where, how and why?" about the dataset. Please see the DGGS Metadata README page for information about our metadata.

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.

Distribution Contact Information

Metadata Manager
Alaska Division of Geological & Geophysical Surveys
3354 College Road
Fairbanks, AK 99709-3707
Phone Number: (907)451-5020
Fax Number: (907)451-5050
E-mail: dggspubs@alaska.gov