Alaska Geologic Data Index (AGDI)

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Frequently anticipated questions:


What does this data set describe?

Title: Alaska Geologic Data Index (AGDI)
Abstract:
The Alaska Geologic Data Index (AGDI) is an actively growing index of unpublished geologic data collected throughout the state of Alaska. The records captured range from project documents to imagery to geochemical data. The index is designed to contain data and documents pertaining to all related fields of geology, including oil and gas, geologic engineering, minerals industry, scientific data, and agency archives. The index can refer to paper or digital information. Agencies, institutions, and the public are encouraged to contribute unpublished data to this dataset. Data owners can pick from three levels of data availability. These include: public - the data records in AGDI are visible to the public, and the archived documents are also available to the public; limited - the data records in AGDI are visible to the public, but the archived documents may not be available or are available at the discretion of the data owner; and private - records are visible only to the owner of the records and AGDI database administrator, and the archived documents may not be available or are available at the discretion of the data owner. If you would like to contribute data to this index, please contact the Alaska Division of Geological & Geophysical Surveys (DGGS) at dnr.dggs.webapps@alaska.gov to obtain a username and password for the application. A username and password may either be assigned to a specific individual or designed to be shared among individuals. For example, a username and password may be shared within the organization so that more than one individual in the organization can edit the records and query records that are private. Maintaining the appropriate privacy of a username and password is the responsibility of the record owner.
Supplemental_Information: None
  1. How should this data set be cited?

    Crafford, T.C., Crafford, Elizabeth, and others, 2012, Alaska Geologic Data Index (AGDI): Digital Data Series DDS 1, State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys, Fairbanks, AK, USA.

    Online Links:

    Other_Citation_Details: web application

  2. What geographic area does the data set cover?

    West_Bounding_Coordinate: 167
    East_Bounding_Coordinate: -129
    North_Bounding_Coordinate: 72
    South_Bounding_Coordinate: 46

  3. What does it look like?

  4. Does the data set describe conditions during a particular time period?

    Beginning_Date: unknown
    Ending_Date: unknown
    Currentness_Reference: in development

  5. What is the general form of this data set?

    Geospatial_Data_Presentation_Form: interactive map

  6. How does the data set represent geographic features?

    1. How are geographic features stored in the data set?

      This is a Point data set.

    2. What coordinate system is used to represent geographic features?

      The map projection used is GS_1984_Web_Mercator_Auxiliary_Sphere.

      Projection parameters:
      Standard_Parallel: 0
      Longitude_of_Central_Meridian: 0
      False_Easting: 0
      False_Northing: 0

      Planar coordinates are encoded using coordinate pair
      Abscissae (x-coordinates) are specified to the nearest 0.00000001
      Ordinates (y-coordinates) are specified to the nearest 0.00000001
      Planar coordinates are specified in meters

      The horizontal datum used is D_WGS_1984.
      The ellipsoid used is WGS_1984.
      The semi-major axis of the ellipsoid used is 6378137.000000.
      The flattening of the ellipsoid used is 1/298.257223563.

  7. How does the data set describe geographic features?

    Aggregate view of tables within DGGS Oracle database
    Points and polygons with attribute data (Source: Alaska Division of Geological & Geophysical Surveys)

    Entity_and_Attribute_Overview:
    The elements, values, and definitions are available in the data dictionary. Additional information may be found online in the user guide <http://maps.dggs.alaska.gov/agdi/help.pdf>.
    Entity_and_Attribute_Detail_Citation: AGDI_data_dictionary.csv


Who produced the data set?

  1. Who are the originators of the data set? (may include formal authors, digital compilers, and editors)

  2. Who also contributed to the data set?

    The online AGDI 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. The following DGGS employees helped create the ADGI application: Jennifer Athey (project manager, geologist), Susan Seitz (database manager/programmer), Simone Montayne (geologist), Ken Woods (systems administrator) and other programming staff.

  3. To whom should users address questions about the data?

    Alaska Division of Geological & Geophysical Surveys
    GIS Manager
    3354 College Road
    Fairbanks, AK 99709-3707
    USA

    (907)451-5020 (voice)
    dggsgis@alaska.gov

    Hours_of_Service: 8 am to 4:30 pm, Monday through Friday, except State holidays


Why was the data set created?

AGDI includes information about industry reports and maps, field notes, drill logs, and other data from the private sector. The data are available through a web application with a text- and map-based search interface, data input and editing functionality, and data administration capability. The archived data are held and controlled by government agencies, institutions, and private companies; the index points to the physical location of the data, provides a basic description, and contains information on accessibility. This project is funded through the federal Minerals Data and Information Rescue in Alaska (MDIRA) program. The primary objective of the MDIRA program is to ensure that all available Alaska minerals data are securely archived in perpetuity and in a format readily accessible by all potential users. Information on mineral resources is important for management policy decisions in both the public and private sectors. Increased use of high-quality data in all sub-disciplines of geology should lead to better economic, legislative, and environmental decisions.


How was the data set created?

  1. From what previous works were the data drawn?

    Anaconda collection (source 1 of 2)
    Co., Anaconda Minerals, Unpublished material, Unpublished Anaconda Alaska collection.

    Type_of_Source_Media: electronic database
    Source_Contribution: Dataset is contained within AGDI database.

    Crafford, 2003 (source 2 of 2)
    Crafford, Tom, 2003, Minerals Data Information Rescue in Alaska (MDIRA): Anaconda Collection and More: Alaska Miners Association, 2003 Annual Convention, Anchorage, Alaska, November 3-8, 2003.

    Other_Citation_Details: p. 24
    Type_of_Source_Media: paper
    Source_Contribution:
    Provided information on the indexing of initial data in the AGDI database.

  2. How were the data generated, processed, and modified?

    Date: 2003 (process 1 of 2)
    As part of the original BLM-funded MDIRA project, the Anaconda collection and approximately 2500 records of privately held minerals information were indexed into the Alaska Mineral Industry Data Index (AKMIDI) database. The collection includes about 10,500 records of more than 10 years of minerals exploration data collected throughout Alaska by the Anaconda Minerals Company and data from various other mining companies (Crafford, 2003). In total, the AKMIDI database contains 15,981 records from 20 different data sources. The data set includes geological, geochemical, and geophysical reports, surveys, field notes, maps, and images. The AKMIDI Access database was designed, indexed, and managed by T. Crafford & Associates professional geologists to ensure that the relevant information required by the minerals industry would be captured. The first set of records indexed was the Anaconda Collection, including digital photography of the maps and figures. This work was performed by Bristol Environmental and Engineering Corp. under contract to UAA. Anaconda Collection maps and files from outside of the Cook Inlet Region Incorporated (CIRI) region were donated to the University of Alaska Anchorage (UAA). The UAA-ARLIS library houses the regular-sized files while DGGS's Geologic Materials Center in Eagle River houses the over-sized maps and illustrations. Under contract by BLM, T. Crafford & Associates continued the project to obtain data from other data sources, focusing on native corporations. Nineteen other groups either entered their own data into a slightly modified version of the database or data entry was performed by T. Crafford & Associates. The 20 databases were merged into one Master AKMIDI database and the final product was delivered to the BLM in 2003.

    Date: 2012 (process 2 of 2)
    In 2011, DGGS received additional MDIRA funds to create a new search interface for the AKMIDI web search engine, which was desupported in 2009. The AKMIDI data structure was rebuilt and refined, and the data were ported into DGGS's Oracle database. The new data structure and AGDI application was enhanced to include all sub-disciplines of geology. The application contains a text- and map-based search interface, data input and editing functionality, and data administration capability. The data will also be available as WFS and KML.

  3. What similar or related data should the user be aware of?


How reliable are the data; what problems remain in the data set?

  1. How well have the observations been checked?

    AGDI records are entered by the owners of the dataset and may vary in accuracy. Data may be unknown or poorly known.

  2. How accurate are the geographic locations?

    Horizontal accuracy varies widely for each record. Location may be assigned by place name, quadrangle, area, or point. An "Estimated Location Accuracy" is requested (when known) for records located by area or point.

  3. How accurate are the heights or depths?

  4. Where are the gaps in the data? What is missing?

    AGDI contains a small subset of the unpublished geologic information of Alaska. We encourage agencies, institutions, and private entities to populate and use the database.

  5. How consistent are the relationships among the observations, including topology?

    Referential integrity among the tables is enforced by the database system.


How can someone get a copy of the data set?

Are there legal restrictions on access or use of the data?

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).
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 &amp; 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.

  1. Who distributes the data set? (Distributor 1 of 1)

    Alaska Division of Geological & Geophysical Surveys
    3354 College Road
    Fairbanks, AK 99709-3707
    USA

    (907)451-5020 (voice)
    (907)451-5050 (FAX)
    dggspubs@alaska.gov

    Hours_of_Service: 8 am to 4:30 pm, Monday through Friday, except State holidays
    Contact_Instructions:
    Please view our website (<http://www.dggs.alaska.gov>) for the latest information on available data. Please contact us using the e-mail address provided above when possible.
  2. What's the catalog number I need to order this data set?

    DDS 1

  3. What legal disclaimers am I supposed to read?

    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.

  4. How can I download or order the data?

  5. Is there some other way to get the data?

    DGGS publications are available as free online downloads or you may purchase paper hard-copies or digital files on CD/DVD or other digital storage media over the counter, by mail, phone, fax, or email from the DGGS Fairbanks office. Turnaround time is 1-2 weeks unless special arrangements are made and an express fee is paid. Shipping charge will be the actual cost of postage and will be added to the total amount due. Contact us for exact shipping amount.


Who wrote the metadata?

Dates:
Last modified: 04-Dec-2013
Metadata author:
Alaska Division of Geological & Geophysical Surveys
Metadata Manager
3354 College Road
Fairbanks, AK 99709-3707
USA

(907)451-5020 (voice)

Metadata standard:
FGDC Content Standard for Digital Geospatial Metadata (FGDC-STD-001-1998)
Metadata extensions used:


Generated by mp version 2.9.21 on Wed Dec 4 14:18:16 2013