Dataset Name

Geologic map of Mount Chiginagak volcano

Bibliographic Reference

Schaefer, J.R., Scott, W.E., and Layer, P.W., 2017, Geologic map of Mount Chiginagak volcano, Alaska: Alaska Division of Geological & Geophysical Surveys Report of Investigation 2017-10, 32 p., 1 sheet, scale 1:25,000.

Table of Contents

Layer Name: metadata
Layer Description: metadata files, read me files and reports

Layer Name: Geodatabase
Layer Description: Geodatabase and ArcMap files

Supplemental Information

This digital data distribution package provides shapefiles and geodatabase that portray features presented in RI 2017-10. Field names and values are organized according to the NCGMP09 - Draft Standard Format for Digital Publication of Geologic Maps, Version 1.1 by the USGS National Cooperative Geologic Mapping Program (NCGMP). This metadata file lists the table names and field names used in the geodatabase. Table and field names in the shapefiles are truncated at 10 characters. The geodatabase and selected shapefiles provide the following features:
 >Basemap: Geodatabase feature dataset that provides topographic contours, hydrology, and geographic place names
 >CorrelationOfMapUnits: Geodatabase feature dataset that depicts the map unit correlation chart; includes applicable unit designators, brackets, dividing lines, and text
 >ContactsAndFaults: Line features that depict faults and geologic contacts
 >DataSourcePolys: Polygons that delineate the data sources for various parts of the map
 >DataSources: Non-spatial reference table that provides bibliographic references for the datasets or information used to generate or interpret geologic or geographic features
 >DescriptionOfMapUnits: Non-spatial reference table that provides key information about each map unit. Additional information may be found in an accompanying report.
 >GenericPoints: A point file that provides locations and labels for key geologic features or observations.
 >GeochronPoints: Geochronology sample location points.
 >GeologicLines: Dikes, coal seams, ash beds, glacial features, anticline and syncline hinge-surface traces, and other kinds of key beds that do not participate in map-unit topology
 >MapUnitPolys: Polygons that record the distribution of mapped or interpreted geologic units
 >OtherPolys: Polygons that record the location and extent of geologic or geographic features other than the geologic units
 >RepurposedSymbols: Non-spatial reference table that documents cases in which FGDC Standard symbols are supplemented with custom symbols or with FGDC symbols repurposed for the map.
 >Stations: Field observation locations and descriptions


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