Geologic Map Index of Alaska

DGGS Staff2013Geologic Map Index of Alaskainteractive mapDigital Data SeriesDDS 5Fairbanks, AK, USAState of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveyshttps://doi.org/10.14509/25601http://doi.org/10.14509/mapindexThe Geologic Map Index of Alaska (Map Index) is a GIS web feature service paired with an interactive web map application that provides access to an actively growing geographic index of geology-related maps of Alaska and adjacent areas. This online research tool provides the locations and outlines of most DGGS and U.S. Geological Survey (USGS) geologic maps of Alaska in a single, interactive web application. It allows searches of the map database by geographic area of interest, keywords, publishing agency, dates, and other criteria. The search results link DGGS's comprehensive, multi-agency publications database, where users can view and download publications for free. Map Index provides access to traditional geologic maps and sample location, geologic hazards, and geologic resources maps. In addition, DGGS plans to add outlines and data to the application for new and remaining geologic maps published by DGGS, USGS, U.S. Bureau of Mines, and U.S. Bureau of Land Management. Reports without maps can be accessed through DGGS's comprehensive publications database, <http://dggs.alaska.gov/pubs/advanced-search>.The Map Index interactive web mapping application facilitates the discovery of geologic maps needed to perform research, make informed resource- and land-management decisions, and better understand the geology across Alaska.DGGS appreciates the collaborative support from the U.S. Geological Survey's National Geologic Map Database project (David Soller, USGS Project Chief), which provided data for thousands of U.S. Geological Survey geology-related maps in Alaska.20002021in developmentin workirregular140-658018ISO 19115 Topic CategorygeoscientificInformationNoneAlaska Statewide MapsGeologic MapAnalytical ResultsEnergy ResourcesEngineering GeologyEnvironmentalGeochemical DataGeologic HazardsGeologic MaterialsGeologyMineral ResourcesNoneAlaska, State ofAlaska Statewide QuadrangleRussiaCanadaThis 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).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.Alaska Division of Geological & Geophysical SurveysMetadata Managermailing and physical

3354 College Road

FairbanksAK99709-3707USA(907)451-5020(907)451-5050dggspubs@alaska.gov8 am to 4:30 pm, Monday through Friday, except State holidaysPlease view our website (https://www.dggs.alaska.gov) for the latest information on available data. Please contact us using the e-mail address provided above when possible.The online Map Index dataset and application were compiled and developed through funding from the federal Minerals Data and Information Rescue in Alaska (MDIRA) program and State of Alaska's General Fund, and continue to be supported by the State of Alaska General Fund. The redesigned 2021 web map application was funded by the USGS National Geological and Geophysical Data Preservation Program under award number G20AP00103 and the State of Alaska General Fund and implemented by Michael Hendricks (GIS analyst), Susan Seitz (database manager/programmer), Jennifer Athey (project manager, geologist), and Simone Montayne (geologist). The following DGGS employees helped create the 2013 Map Index application: Jennifer Athey (project manager, geologist), Susan Seitz (database manager/programmer), Anonymous (programmer), Simone Montayne (geologist), and Ken Woods (systems administrator). Application design ideas and an application prototype were provided by Will Fisher, Geographic Information Network of Alaska (programmer). DGGS staff responsible for original data compilation: Laurel Burns (project manager, geophysicist), Robin Smith (geologist), Shelley Hicks (geologist), and Heather Erickson (geologist). USGS collaborator David Soller (Chief, National Geologic Map Database project) provided data for Alaska's thousands of U.S. Geological Survey geology-related maps.The dataset is stored in a PostgreSQL database and made available to the Map Index Web App through a GIS-enabled table.Map Index records are checked programmatically to be consistent with other publication databases. Errors, inconsistencies, and missing records may be reported to <dnr.dggs.webapps@alaska.gov>.Referential integrity among the tables is enforced by the database system.On its launch, Map Index contained records for approximately 90 percent of DGGS's total geology-related map collection and approximately 70 percent of the USGS's map collection. The collection currently contains about 99 percent of DGGS' maps and 90 percent of Alaska USGS maps. DGGS plans to add outlines and data to the application for new and remaining geologic maps published by DGGS, USGS, U.S. Bureau of Mines, and U.S. Bureau of Land Management. The application will be updated irregularly with new map publications as they become available.All maps have an associated spatial footprint, either as an outline surrounding the area that was mapped or as a rectangular outline representing the extent of geologic mapping. The map outlines are generalized and do not correspond exactly with the actual mapped area.U.S. Geologic SurveyunknownNational Geologic Map Database <http://ngmdb.usgs.gov/>electronic databaseunknowndate of informationUSGS Staff, unknownAlaska maps were subset out of the NGMDB database and loaded into DGGS's publications database for the Map Index application. Alaska information can also be searched through the NGMDB Map Catalog, <http://ngmdb.usgs.gov/ngm-bin/ngm_compsearch.pl>.DGGS and USGS publication and geospatial data were compiled from 2000-2005 by DGGS employees. In 2003, in cooperation with DNR's Land Records Information Section (now Information Resource Management), DGGS released the first version of the "Geologic Map Index of Alaska" web application. The beta-application was desupported in 2009 and decommissioned in 2011.2011In 2011, DGGS received additional MDIRA funds to create a new search interface for the Map Index web search engine. The new application was initially designed and built by programmer Will Fisher, UAF-Geographic Information Network of Alaska, and then later overhauled by DGGS programmers to better fit with DGGS's I.T. platform. Data from the 2000-2005 compilation was imported into DGGS's enterprise database and programmatically quality checked. Additional Alaska USGS publication and geospatial information were provided by the USGS National Geologic Map Database (unknown USGS), loaded into the DGGS enterprise database, and cross-checked with existing USGS publications. DGGS continues to update the Map Index application with additional legacy maps and new maps as they are published.2013In 2020, DGGS received funding from the USGS National Geological and Geophysical Data Preservation Program under award number G20AP00103 and the State of Alaska General Fund to redesign the Map Index online application. The Map Index data were migrated from an Oracle to PostgreSQL database platform. Map Index data are made available to the application through a feature service from a concatenated table in the PostgreSQL database. The custom web mapping application was redesigned using Esri ArcGIS Enterprise Portal version 10.8.1 and Web AppBuilder. DGGS continues to update the database with map publications as part of its regular publication process. USGS maps are updated irregularly.2021VectorGS_1984_Web_Mercator_Auxiliary_Sphere0000coordinate pair0.000000010.00000001metersD_WGS_1984WGS_19846378137.000000298.257223563Geologic Map Index of AlaskaThe DGGS Map Index feature service, data dictionary, and user guide.Alaska Division of Geological & Geophysical Surveysfeature servicecitation_idThe unique identifier of the citation information.Alaska Division of Geological & Geophysical SurveysLong integerpublication_numberThe alpha numeric value the publisher assigns to the publication. This value along with publication year and publication series make up the publication identifier or pub designator.Alaska Division of Geological & Geophysical SurveysText(100)authorAuthor(s) of the specified publication.Alaska Division of Geological & Geophysical SurveysText(60000)titleThe title or name of the citation, this is a text string created by the authors or publishers to identify and describe the information contained in the group of data or publication.Alaska Division of Geological & Geophysical SurveysText(500)publication_dateThe actual date that the publication was released for public distribution.Alaska Division of Geological & Geophysical SurveysDateagencyThe name of the organization responsible for the origination of a publication.Alaska Division of Geological & Geophysical SurveysText(7)urlUnique address to the publication's citation page on DGGS' website.Alaska Division of Geological & Geophysical SurveysText(100)keywordWord or phrase used to describe the subject of the data set.Alaska Division of Geological & Geophysical SurveysText(60000)map_labelValue of the publication number to be used to identify the map in the Map Index Application.Alaska Division of Geological & Geophysical SurveysText(50)map_scale_denominatorDenominator of the unitless map scale ratio, i.e., 24000 if the map scale is 1:24,000.Alaska Division of Geological & Geophysical SurveysLong integeroutline_sourceDescribes the spatial object representing the boundary of the map. May be either a Map Extent (bounding box around the mapped area), Map Outline (actual area of the mapping), or Statewide (generally covering the entire state).Alaska Division of Geological & Geophysical SurveysText(30)area_sq_miArea of the spatial object in square miles.Alaska Division of Geological & Geophysical SurveysDoubledigital_dataIndicates whether the map product is published with digital data, e.g., GIS files, database, csv.Alaska Division of Geological & Geophysical SurveysText(1)Alaska Division of Geological & Geophysical SurveysMetadata Managermailing and physical

3354 College Road

FairbanksAK99709-3707USA(907)451-5020(907)451-5050dggspubs@alaska.gov8 am to 4:30 pm, Monday through Friday, except State holidaysFGDC Content Standard for Digital Geospatial MetadataFGDC-STD-001-1998If the user has modified the data in any way they are obligated to describe the types of modifications they have performed in the supporting metadata file. User specifically agrees not to imply that changes they made were approved by the Alaska Department of Natural Resources or Division of Geological & Geophysical Surveys.https://dggs.alaska.gov/metadata/dggs.extdggs metadata extensions