Identification_Information: Citation: Citation_Information: Originator: Cameron, C.E. Originator: Nye, C.J. Publication_Date: 2014 Title: Preliminary database of Quaternary vents in Alaska Geospatial_Data_Presentation_Form: report,digital data Series_Information: Series_Name: Miscellaneous Publication Issue_Identification: MP 153 Publication_Information: Publication_Place: Fairbanks, Alaska, United States Publisher: Alaska Division of Geological & Geophysical Surveys Other_Citation_Details: 11 p. Online_Linkage: http://dx.doi.org/10.14509/27357 Description: Abstract: The Alaska Volcano Observatory (AVO) uses an informal set of names for about 140 'volcanoes.' Some names refer to large, complex volcanic centers, while others indicate only a specific cone. This publication expands the list of 140 named volcanoes to include all volcanic vents where magma has reached the surface over the past 2.6 million years. This database of all known (published, or unpublished with permission) Quaternary volcanic vents was developed to better describe the nature and character of Quaternary volcanism in Alaska and specifically to aid in the discussion of spatial and temporal patterns of Alaska volcanism. This list is a preliminary starting point, and we hope that it is updated and expanded by the addition of newly discovered subaerial and submarine vents. We invite the community of volcanologists who study Alaska volcanism to help us develop this database by adding new vents as they are discovered and by improving the geologic descriptions of known vents as new information becomes available. Purpose: The Alaska Volcano Observatory (AVO) uses an informal set of names for about 140 'volcanoes'. Some names refer to large, complex volcanic centers, while others indicate only a specific cone. This publication expands the list of 140 volcanoes to include all volcanic vents where magma has reached the surface over the past 2.6 million years, and currently comprises 1,187 entries. This database of all known (published, or unpublished with permission) Quaternary volcanic vents was developed to better describe the nature and character of Quaternary volcanism in Alaska and specifically to aid in the discussion of spatial and temporal patterns of Alaska volcanism. This list is a preliminary starting point, and we hope that it is updated and expanded by the addition of newly discovered subaerial and submarine vents. We invite the community of volcanologists who study Alaska volcanism to help us develop this database by adding new vents as they are discovered and by improving the geologic descriptions of known vents as new information becomes available. Supplemental_Information: The DGGS metadata standard extends the FGDC standard to include elements that are required to facilitate our internal data management. These elements, referred to as "layers," group and describe files that have intrinsic logical or topological relationships and correspond to subdirectories within the data distribution package. The metadata layer provides an FGDC metadata file and may include other documentation files. Attribute information for each data layer is described in this metadata file under the "Entity_and_Attribute_Information" section. Data layer contents: >border: A polygon shapefile that provides generalized outlines of the geographic areas noted within this report. Historic volcanic vents occur in many places throughout Alaska. The border file is a multipart polygon that roughly outlines groups of adjacent vents. The vent groups are based on a calculated buffer of geographic proximity. This file is intended provide a broad overview of where vents occur throughout the state and should not be used for any other purpose. >AK_Q_vents: A table that lists basic information about each vent; the accompanying manuscript provides a comprehensive list and description of each field. >full_citation: A table of citation information for each reference used in vent reference list; the accompanying manuscript provides a comprehensive list and description of each field in this table. >vent_reference: A table that joins the list of vents to the applicable references in the "full_citation" table. The accompanying manuscript provides a comprehensive list and description of each field in this table. Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 2014 Currentness_Reference: ground condition Status: Progress: complete Maintenance_and_Update_Frequency: as needed Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -179.990768 East_Bounding_Coordinate: 179.998208 North_Bounding_Coordinate: 66.505900 South_Bounding_Coordinate: 51.374900 Keywords: Theme: Theme_Keyword_Thesaurus: ISO 19115 Topic Category Theme_Keyword: geoscientificInformation Theme: Theme_Keyword_Thesaurus: Alaska Division of Geological & Geophysical Surveys Theme_Keyword: Hazards Theme_Keyword: Volcanic Eruption Theme_Keyword: Volcanoes Theme_Keyword: Volcanology Place: Place_Keyword_Thesaurus: Alaska Division of Geological & Geophysical Surveys Place_Keyword: Adak Quadrangle Place_Keyword: Alaska Peninsula Place_Keyword: Aleutian Islands Place_Keyword: Amukta Quadrangle Place_Keyword: Atka Quadrangle Place_Keyword: Baird Inlet Quadrangle Place_Keyword: Bendeleben Quadrangle Place_Keyword: Candle Quadrangle Place_Keyword: Chignik Quadrangle Place_Keyword: Cold Bay Quadrangle Place_Keyword: Cook Inlet Place_Keyword: Craig Quadrangle Place_Keyword: Fairbanks Quadrangle Place_Keyword: False Pass Quadrangle Place_Keyword: Gareloi Island Quadrangle Place_Keyword: Goodnews Bay Quadrangle Place_Keyword: Gulkana Quadrangle Place_Keyword: Healy Quadrangle Place_Keyword: Hooper Bay Quadrangle Place_Keyword: Iliamna Quadrangle Place_Keyword: Karluk Quadrangle Place_Keyword: Kenai Quadrangle Place_Keyword: Ketchikan Quadrangle Place_Keyword: Kiska Quadrangle Place_Keyword: Kotzebue Quadrangle Place_Keyword: Kwiguk Quadrangle Place_Keyword: Lake Clark Quadrangle Place_Keyword: Marshall Quadrangle Place_Keyword: McCarthy Quadrangle Place_Keyword: Mount Katmai Quadrangle Place_Keyword: Nabesna Quadrangle Place_Keyword: Naknek Quadrangle Place_Keyword: Nunivak Island Quadrangle Place_Keyword: Petersburg Quadrangle Place_Keyword: Port Moller Quadrangle Place_Keyword: Pribilof Islands Quadrangle Place_Keyword: Rat Islands Quadrangle Place_Keyword: Saint Lawrence Quadrangle Place_Keyword: Saint Michael Quadrangle Place_Keyword: Samalga Island Quadrangle Place_Keyword: Seguam Quadrangle Place_Keyword: Selawik Quadrangle Place_Keyword: Seward Peninsula Place_Keyword: Sitka Quadrangle Place_Keyword: Southeast Alaska Place_Keyword: Stepovak Bay Quadrangle Place_Keyword: Sutwik Island Quadrangle Place_Keyword: Tanacross Quadrangle Place_Keyword: Tyonek Quadrangle Place_Keyword: Ugashik Quadrangle Place_Keyword: Umnak Quadrangle Place_Keyword: Unalakleet Quadrangle Place_Keyword: Unalaska Quadrangle Place_Keyword: Unimak Quadrangle Place_Keyword: Valdez Quadrangle Place_Keyword: Wrangell Mountains Temporal: Temporal_Keyword_Thesaurus: Walker, J.D., Geissman, J.W., Bowring, S.A, and Babcock, L.E., comp., 2012, Geologic Time Scale v. 4.0: Geological Society of America Temporal_Keyword: Holocene Temporal_Keyword: Pleistocene 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 & 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. Point_of_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: Alaska Division of Geological & Geophysical Surveys Contact_Position: GIS Manager Contact_Address: Address_Type: mailing and physical Address: 3354 College Road City: Fairbanks State_or_Province: AK Postal_Code: 99709-3707 Country: USA Contact_Voice_Telephone: (907)451-5020 Contact_Electronic_Mail_Address: dggsgis@alaska.gov Hours_of_Service: 8 am to 4:30 pm, Monday through Friday, except State holidays Data_Set_Credit: The authors thank Janet Schaefer (ADGGS/AVO), Charlie Bacon (USGS), Tina Neal (USGS/AVO), Michelle Coombs (USGS/AVO), Brian Jicha (University of Wisconsin Madison), Gene Yogodzinski (University of South Carolina), and Pete Stelling (Western Washington University) for providing unpublished vent data and/or review of volcanic centers. Data_Quality_Information: Attribute_Accuracy: Attribute_Accuracy_Report: This database attempts to note all the locations where magma is known to have reached the surface in the last 2.6 million years. Given the spotty coverage of geologic mapping, geophysical studies, geochemical analyses, and geochronology in Alaska, this list is incomplete. Vent locations come from published and unpublished sources, and are subject to limitations of mapping scale and various mapping priorities, as well as problems such as erosion, glaciation, or destruction of the vent. An additional uncertainty arises around eroded domes or plugs-whether or not many of these features ever had a vent that made it to the surface is often unknown. Largely because of unavailable data, this list also does not adequately address the problems of trying to determine locations for vents that are now obscured or obliterated (during caldera formation, perhaps). There are also complications in determining the criteria that might be used to either group or separate vents. The accompanying report includes discussion of issues that complicate classification of Alaska's volcanic vents. The information in this publication release has been reviewed for consistency and completeness by several geologists who are familiar with the subject matter. Logical_Consistency_Report: not applicable Completeness_Report: This list is a preliminary starting point, and we hope that it is updated and expanded by the addition of newly discovered subaerial and submarine vents. We invite the community of volcanologists who study Alaska volcanism to help us develop this database by adding new vents as they are discovered and by improving the geologic descriptions of known vents as new information becomes available. Positional_Accuracy: Horizontal_Positional_Accuracy: Horizontal_Positional_Accuracy_Report: In some case the location coordinate listed in spreadsheets may provide a higher degree of location precision than is appropriate. To determine degree of uncertainty associated with the location of each vent users should review the 'Loc_conf' value in the spreadsheet and the accompanying report. Lineage: Process_Step: Process_Description: Compilation - We compiled a database of information about all known (published, or unpublished with permission) Quaternary volcanic vents in Alaska. The references used to compile the database are provided as a component of this publication. Process_Date: 2014 Spatial_Data_Organization_Information: Direct_Spatial_Reference_Method: point Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Geographic: Latitude_Resolution: 0.001 Longitude_Resolution: 0.001 Geographic_Coordinate_Units: decimal degrees Geodetic_Model: Horizontal_Datum_Name: World Geodetic System of 1984 Ellipsoid_Name: WGS 84 Semi-major_Axis: 6378137 Denominator_of_Flattening_Ratio: 298.257223563 Entity_and_Attribute_Information: Detailed_Description: Entity_Type: Entity_Attribute_Layer_Name: border Entity_Type_Label: mp153-border.shp Entity_Type_Definition: A polygon shapefile that provides generalized outlines of the geographic areas noted within this report. Historic volcanic vents occur in many places throughout Alaska. The border file is a multipart polygon that roughly outlines groups of adjacent vents. The vent groups are based on a calculated buffer of geographic proximity. This file is intended provide a broad overview of where vents occur throughout the state and should not be used for any other purpose. Entity_Type_Definition_Source: Alaska Division of Geological & Geophysical Surveys Detailed_Description: Entity_Type: Entity_Attribute_Layer_Name: AK_Q_vents Entity_Type_Label: mp153-AK_Q_vents.csv Entity_Type_Definition: A table that lists basic information about each vent; the accompanying manuscript provides a comprehensive list and description of each field. Entity_Type_Definition_Source: Alaska Division of Geological & Geophysical Surveys Detailed_Description: Entity_Type: Entity_Attribute_Layer_Name: full_citation Entity_Type_Label: mp153-full_citation.csv Entity_Type_Definition: A table of citation information for each reference used in vent reference list; the accompanying manuscript provides a comprehensive list and description of each field in this table. Entity_Type_Definition_Source: Alaska Division of Geological & Geophysical Surveys Detailed_Description: Entity_Type: Entity_Attribute_Layer_Name: vent_reference Entity_Type_Label: mp153-vent_reference.csv Entity_Type_Definition: A table that joins the list of vents to the applicable references in the "full_citation" table. The accompanying manuscript provides a comprehensive list and description of each field in this table. Entity_Type_Definition_Source: Alaska Division of Geological & Geophysical Surveys Distribution_Information: Distributor: Contact_Information: Contact_Organization_Primary: Contact_Organization: Alaska Division of Geological & Geophysical Surveys Contact_Address: Address_Type: mailing and physical Address: 3354 College Road City: Fairbanks State_or_Province: AK Postal_Code: 99709-3707 Country: USA Contact_Voice_Telephone: (907)451-5020 Contact_Facsimile_Telephone: (907)451-5050 Contact_Electronic_Mail_Address: 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. Resource_Description: MP 153 Distribution_Liability: 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. Standard_Order_Process: Non-digital_Form: 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 by mail, phone, fax, or email from the DGGS Fairbanks office. To purchase this or other printed reports and maps, contact DGGS by phone (907-451-5020), e-mail (dggspubs@alaska.gov), or fax (907-451-5050). Payment accepted: Cash, check, money order, VISA, or MasterCard. 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 the exact shipping amount. Fees: Contact DGGS for current pricing Standard_Order_Process: Digital_Form: Digital_Transfer_Information: Format_Name: ASCII tabular files Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: http://dx.doi.org/10.14509/27357 Fees: Free download Metadata_Reference_Information: Metadata_Date: 20140902 Metadata_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: Alaska Division of Geological & Geophysical Surveys Contact_Position: Metadata Manager Contact_Address: Address_Type: mailing and physical Address: 3354 College Road City: Fairbanks State_or_Province: AK Postal_Code: 99709-3707 Country: USA Contact_Voice_Telephone: (907)451-5020 Metadata_Standard_Name: FGDC Content Standard for Digital Geospatial Metadata Metadata_Standard_Version: FGDC-STD-001-1998 Metadata_Use_Constraints: If 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. Metadata_Extensions: Online_Linkage: http://www.dggs.alaska.gov/metadata/dggs.ext Profile_Name: dggs metadata extensions