Identification_Information: Citation: Citation_Information: Originator: McConnell, V.S. Originator: Beget, J.E. Originator: Roach, A.L. Originator: Bean, K.W. Originator: Nye, C.J. Publication_Date: 1998 Title: Geologic map of the Makushin volcanic field, Unalaska Island, Alaska Geospatial_Data_Presentation_Form: geodatabase Series_Information: Series_Name: Report of Investigation Issue_Identification: RI 97-20 Publication_Information: Publication_Place: Fairbanks, Alaska, United States Publisher: Alaska Division of Geological & Geophysical Surveys Other_Citation_Details: 2 sheets, scale 1:63,360 Online_Linkage: https://doi.org/10.14509/2576 Description: Abstract: Report of Investigation 97-20, Geologic map of the Makushin volcanic field, Unalaska Island, Alaska, covers most of the north end of Unalaska Island, which is the extent of the Quaternary Makushin volcanic field. This study emphasizes the Holocene-Pleistocene eruptive history of Makushin Volcano and its satellite vents. The complete report, geodatabase, and ESRI fonts and style files are available from the DGGS website: http://doi.org/10.14509/2576. Purpose: Geologic mapping of the Makushin volcanic field was developed by Alaska Volcano Observatory staff to support public land-use planning, development of emergency response plans, and provide the general public awareness of the nature of volcanic activity in Alaska. Supplemental_Information: This geodatabase is organized according to the AK GeMS mapping schema Hendricks, M.D., Ekberg, P.G., Athey, J.E., Wyatt, W.C., Willingham, A.L., and Naibert, T.J., 2021, AK GeMS data dictionary: A description of the Alaska geologic mapping schema: Alaska Division of Geological & Geophysical Surveys Miscellaneous Publication 170, 10 p. https://doi.org/10.14509/30669. The distribution package includes ESRI fonts and style files, along with usage instructions. Further documentation of the symbology is provided by Ekberg, P.G., Hendricks, M.D., and Athey, J.E., 2021, AK GeMS symbology: A description of the AK GeMS style file: Alaska Division of Geological & Geophysical Surveys Miscellaneous Publication 169, 7 p. https://doi.org/10.14509/30584 Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1997 Currentness_Reference: ground condition Status: Progress: complete Maintenance_and_Update_Frequency: None planned Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -167.166216 East_Bounding_Coordinate: -166.496437 North_Bounding_Coordinate: 54.018952 South_Bounding_Coordinate: 53.753343 Keywords: Theme: Theme_Keyword_Thesaurus: ISO 19115 Topic Category Theme_Keyword: geoscientificInformation Theme: Theme_Keyword_Thesaurus: Alaska Division of Geological & Geophysical Surveys Theme_Keyword: Active Volcanoes Theme_Keyword: Alluvial Theme_Keyword: Alluvial Deposits Theme_Keyword: Alluvial Fan Theme_Keyword: Alluvium Theme_Keyword: Ar-Ar Theme_Keyword: Basalt Theme_Keyword: Bedrock Theme_Keyword: Bedrock Geology Theme_Keyword: C14 Theme_Keyword: Caldera Theme_Keyword: Coastal and River Theme_Keyword: Colluvial Deposits Theme_Keyword: Colluvium Theme_Keyword: Debris Avalanche Theme_Keyword: DGGS Theme_Keyword: Erosion Theme_Keyword: Flood Theme_Keyword: GeMS Theme_Keyword: GeMS NCGMP09 Theme_Keyword: Geochemical Surveys Theme_Keyword: Geochemistry Theme_Keyword: Geologic Map Theme_Keyword: Geology Theme_Keyword: Granodiorite Theme_Keyword: Lava Flow Theme_Keyword: Major Oxides Theme_Keyword: Pyroclastic Fall Theme_Keyword: Pyroclastic Flow Theme_Keyword: Pyroclastics Theme_Keyword: Radiocarbon Ages Theme_Keyword: Radiocarbon Dating Theme_Keyword: Rockfall Theme_Keyword: Rocks Theme_Keyword: Sample Location Theme_Keyword: Surficial Theme_Keyword: Tephra Theme_Keyword: Trace Elements Theme_Keyword: Trace Geochemical Theme_Keyword: Tuff Theme_Keyword: Unconsolidated Deposits Theme_Keyword: Volcanic Theme_Keyword: Volcanic Ash Theme_Keyword: Volcanic Eruption Theme_Keyword: Volcanic Landslide Theme_Keyword: Volcanic Rocks Theme_Keyword: Volcaniclastic Deposits Theme_Keyword: Volcaniclastics Theme_Keyword: Volcanoes Theme_Keyword: Volcanology Place: Place_Keyword_Thesaurus: Alaska Division of Geological & Geophysical Surveys Place_Keyword: Aleutians West CRSA Coastal District Place_Keyword: Makushin Volcano Place_Keyword: Pakushin Cone Place_Keyword: Table Top Mountain Place_Keyword: Unalaska Stratum: Stratum_Keyword_Thesaurus: Alaska Division of Geological & Geophysical Surveys Stratum_Keyword: Unalaska Formation 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 Temporal_Keyword: Quaternary Temporal_Keyword: Tertiary 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: 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 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 (https://www.dggs.alaska.gov) for the latest information on available data. Please contact us using the e-mail address provided above when possible. Data_Set_Credit: This research was supported by the Alaska Volcano Observatory (AVO). AVO is a joint program of the U.S. Geological Survey (USGS), the Geophysical Institute of the University of Alaska Fairbanks (UAFGI), and the State of Alaska Division of Geological and Geophysical Surveys (ADGGS). The Ounalaska Corporation of Unalaska Island provided permission to traverse their territory during fieldwork. The report benefitted from review by T.E.C. Keith, S.A. Liss, and D.H. Richter. Cross_Reference: Citation_Information: Originator: Beget, J.E. Originator: Nye, C.J. Originator: Bean, K.W. Publication_Date: 2000 Title: Preliminary volcano-hazard assessment for Makushin Volcano, Alaska Series_Information: Series_Name: Report of Investigation Issue_Identification: RI 2000-4 Publication_Information: Publication_Place: Fairbanks, Alaska, United States Publisher: Alaska Division of Geological & Geophysical Surveys Other_Citation_Details: 22 p., 1 sheet, scale 1:100,000 Online_Linkage: https://doi.org/10.14509/2679 Cross_Reference: Citation_Information: Originator: Schaefer, J.R.G. Originator: Perreault, J.M. Originator: Larsen, J.F. Originator: Vallance, J.W. Publication_Date: 2020 Title: Makushin Volcano ash hazards Series_Information: Series_Name: Information Circular Issue_Identification: IC 86 Publication_Information: Publication_Place: Fairbanks, Alaska, United States Publisher: Alaska Division of Geological & Geophysical Surveys Other_Citation_Details: 2 p Online_Linkage: https://doi.org/10.14509/30411 Data_Quality_Information: Attribute_Accuracy: Attribute_Accuracy_Report: Certainty in attribute interpretation varies throughout the map and is scale-dependent. Attribute fields within each feature class record the authors' degree of confidence in the existence or identity of applicable features. Logical_Consistency_Report: All polygon features were topologically validated according to specifications of the AK GeMS geologic mapping schema. Completeness_Report: This publication is released as a DGGS Report of Investigations (RI). An RI is the completed product of original research and analysis, and RIs use professional cartography and undergo rigorous peer review, editing, and revision to ensure accuracy. Positional_Accuracy: Horizontal_Positional_Accuracy: Horizontal_Positional_Accuracy_Report: Certainty in feature boundaries or location varies throughout the map. Data fields within each feature class and the accompanying orientation and location confidence lookup tables record the authors' degree of confidence in the location of applicable features. Lineage: Source_Information: Source_Citation: Citation_Information: Originator: Drewes, H.F. Originator: Fraser, G.D. Originator: Snyder, G.L. Originator: Barnett, H.F., Jr. Publication_Date: 1961 Title: Geology of Unalaska Island and adjacent insular shelf, Aleutian Islands, Alaska Series_Information: Series_Name: Bulletin Issue_Identification: B 1028-S Publication_Information: Publication_Place: United States Publisher: U.S. Geological Survey Other_Citation_Details: p. 583-676, 4 sheets, scale 1:250,000 Online_Linkage: https://dggs.alaska.gov/pubs/id/3585 Source_Scale_Denominator: 250000 Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1961 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Drewes, H.F. and others, 1961 Source_Contribution: Geologic mapping Source_Information: Source_Citation: Citation_Information: Originator: Ekberg, P.G. Originator: Hendricks, M.D. Originator: Athey, J.E. Publication_Date: 2021 Title: AK GeMS symbology: A description of the AK GeMS style file Series_Information: Series_Name: Miscellaneous Publication Issue_Identification: MP 169 Publication_Information: Publication_Place: Fairbanks, Alaska, United States Publisher: Alaska Division of Geological & Geophysical Surveys Other_Citation_Details: 7 p Online_Linkage: https://doi.org/10.14509/30584 Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 2021 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Ekberg, P.G. and others, 2021 Source_Contribution: GIS analysis and digital cartography Source_Information: Source_Citation: Citation_Information: Originator: Hendricks, M.D. Originator: Ekberg, P.G. Originator: Athey, J.E. Originator: Wyatt, W.C. Originator: Willingham, A.L. Originator: Naibert, T.J. Publication_Date: 2021 Title: AK GeMS data dictionary: A description of the Alaska geologic mapping schema Series_Information: Series_Name: Miscellaneous Publication Issue_Identification: MP 170 Publication_Information: Publication_Place: Fairbanks, Alaska, United States Publisher: Alaska Division of Geological & Geophysical Surveys Other_Citation_Details: 10 p Online_Linkage: https://doi.org/10.14509/30669 Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 2021 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Hendricks, M.D. and others, 2021 Source_Contribution: GIS analysis and digital cartography Source_Information: Source_Citation: Citation_Information: Originator: Nye, C.J. Originator: Queen, L.D. Originator: Motyka, R.J. Publication_Date: 1984 Title: Geologic map of the Makushin geothermal area, Unalaska Island, Alaska Series_Information: Series_Name: Report of Investigation Issue_Identification: RI 84-3 Publication_Information: Publication_Place: Fairbanks, Alaska, United States Publisher: Alaska Division of Geological & Geophysical Surveys Other_Citation_Details: 2 sheets, scale 1:24,000 Online_Linkage: https://doi.org/10.14509/2362 Source_Scale_Denominator: 24000 Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1984 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Nye, C.J. and others, 1984 Source_Contribution: Geologic mapping Process_Step: Process_Description: Geologic mapping - During the summers of 1996 and 1983, Alaska Volcano Observatory (AVO) geologists from the University of Alaska, Fairbanks (UAF), the US Geological Survey (USGS), and the Alaska Division of Geological & Geophysical Surveys (DGGS) conducted fieldwork throughout the Makushin volcanic field. Geologists traversed the map area to collect analytical samples of rock and ash and examine and map the existence and extent of lava flows, lahars, tephras, fumaroles, debris avalanches, and other geologically significant features. Source_Used_Citation_Abbreviation: Drewes, H.F. and others, 1961 Source_Used_Citation_Abbreviation: Nye, C.J. and others, 1984 Process_Date: 1996 Process_Step: Process_Description: Geologic map compilation - Field data were digitized from Mylar geologic field map compilations in 1996 and 1983. These compilations were done on a one-to-one scale, stable Mylar of the USGS topographic base for the 1:63,360 scale USGS topographic bases included in the map area. Field data were assimilated with regional geologic mapping and prior DGGS detailed mapping of the Makushin geothermal areas. Map unit delineations and stratigraphic interpretations were supported by whole-rock major-oxide and trace-element geochemistry, as well as 40Ar/39Ar and radiocarbon geochronology. Project staff and peer reviewers evaluated the report and accompanying data for readability and logical consistency with related information sources. Process_Date: 1997 Process_Step: Process_Description: GIS analysis and digital cartography - The geologic and geographic features portrayed in this data distribution package were organized and attributed according to the AK GeMS geologic mapping schema. Source_Used_Citation_Abbreviation: Ekberg, P.G. and others, 2021 Source_Used_Citation_Abbreviation: Hendricks, M.D. and others, 2021 Process_Date: 2021 Spatial_Data_Organization_Information: Direct_Spatial_Reference_Method: vector Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Planar: Grid_Coordinate_System: Grid_Coordinate_System_Name: Universal Transverse Mercator Universal_Transverse_Mercator: UTM_Zone_Number: 3 Transverse_Mercator: Scale_Factor_at_Central_Meridian: 0.999600 Longitude_of_Central_Meridian: -165 Latitude_of_Projection_Origin: 0 False_Easting: 500000.000000 False_Northing: 0 Planar_Coordinate_Information: Planar_Coordinate_Encoding_Method: coordinate pair Coordinate_Representation: Abscissa_Resolution: .00000001 Ordinate_Resolution: .00000001 Planar_Distance_Units: Meters Geodetic_Model: Horizontal_Datum_Name: NAD83 Ellipsoid_Name: GRS 80 Semi-major_Axis: 6378137 Denominator_of_Flattening_Ratio: 298.257222101000025 Entity_and_Attribute_Information: Detailed_Description: Entity_Type: Entity_Type_Label: makushin_ak_gems_db_pkg Entity_Type_Definition: Geodatabase, layer files, style files, and fonts Entity_Type_Definition_Source: Alaska Division of Geological & Geophysical Surveys Entity_Attribute_Layer_Name: makushin_ak_gems_db_pkg Detailed_Description: Entity_Type: Entity_Type_Label: makushin_fed_gems_db_pkg Entity_Type_Definition: Geodatabase, layer files, style files, and fonts Entity_Type_Definition_Source: Alaska Division of Geological & Geophysical Surveys Entity_Attribute_Layer_Name: makushin_fed_gems_db_pkg Detailed_Description: Entity_Type: Entity_Type_Label: makushin_fed_gems_shapefile_pkg Entity_Type_Definition: Shapefiles and open data files Entity_Type_Definition_Source: Alaska Division of Geological & Geophysical Surveys Entity_Attribute_Layer_Name: makushin_fed_gems_shapefile_pkg Distribution_Information: Distributor: 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 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 (https://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: RI 97-20 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: geodatabase Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: https://doi.org/10.14509/2576 Fees: Free download Metadata_Reference_Information: Metadata_Date: 20210807 Metadata_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: Alaska Division of Geological & Geophysical Surveys Contact_Person: Simone Montayne 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 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 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: https://dggs.alaska.gov/metadata/dggs.ext Profile_Name: dggs metadata extensions