Identification_Information: Citation: Citation_Information: Originator: Larsen, J.F. Originator: Neal, C.A. Originator: Cameron, C.E Publication_Date: 2020 Title: Major-oxide and trace-element geochemical data from rocks collected on Little Sitkin Island, from Little Sitkin Volcano, Alaska Geospatial_Data_Presentation_Form: report and digital data Series_Information: Series_Name: Raw Data File Issue_Identification: RDF 2020-4 Publication_Information: Publication_Place: Fairbanks, Alaska, United States Publisher: Alaska Division of Geological & Geophysical Surveys Other_Citation_Details: 4 p. Online_Linkage: http://doi.org/10.14509/30440 Description: Abstract: During the 2005 summer field season, geologists from the University of Alaska, Fairbanks and the U.S. Geological Survey, Alaska Volcano Observatory (AVO) conducted fieldwork in the western Aleutians, on Little Sitkin Island, Alaska. The primary purpose of the fieldwork was to install geophysical networks for volcano monitoring. As part of this effort, AVO geologists conducted reconnaissance fieldwork focused primarily on sample collection for geochemistry. The analytical data table associated with this report is available in digital format as .csv and is also available in .html and .csv from the AVO Geochemical Database (https://avo.alaska.edu/geochem/). Sample descriptions, locations, and sample types are included in the analytical data table. Files can also be downloaded from the DGGS website (http://doi.org/10.14509/30440). Purpose: Geochemical data from these localities provide insight into the eruptive history and character of volcanic deposits and eruptions throughout Alaska. Supplemental_Information: >geochem-data: Major-oxide XRF and trace-element XRF and ICP-MS analyses of volcanic rocks collected on the surface of Little Sitkin volcano. Time_Period_of_Content: Time_Period_Information: Multiple_Dates/Times: Single_Date/Time: Calendar_Date: 2005 Single_Date/Time: Calendar_Date: 2020 Currentness_Reference: ground condition Status: Progress: complete Maintenance_and_Update_Frequency: None planned Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: 178.484270 East_Bounding_Coordinate: 178.531300 North_Bounding_Coordinate: 51.904117 South_Bounding_Coordinate: 51.928761 Keywords: Theme: Theme_Keyword_Thesaurus: ISO 19115 Topic Category Theme_Keyword: geoscientificInformation Theme: Theme_Keyword_Thesaurus: Alaska Division of Geological & Geophysical Surveys Theme_Keyword: Analyses Theme_Keyword: Analyses and Sampling Theme_Keyword: Analytical Lab Results Theme_Keyword: Analytical Results Theme_Keyword: Geochemical Data Theme_Keyword: Geochemistry Theme_Keyword: Geologic Theme_Keyword: Geologic Hazards Theme_Keyword: Geology Theme_Keyword: Major Oxides Theme_Keyword: Rocks Theme_Keyword: Sample Location Theme_Keyword: Surface Theme_Keyword: Trace Elements Theme_Keyword: Trace Geochemical Theme_Keyword: Volcanic 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: Aleutian Islands Place_Keyword: Rat Islands 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 Data_Set_Credit: We thank George Rains and the crew of the Maritime Maid, who provided safe and efficient logistical support to access the field area. Helicopter pilot Bill Springer was a pleasure to work with and his expert skills enabled us to work to work effectively in the remote western Aleutians. We thank the U.S. Fish and Wildlife Service for permitting and logistical support in Adak, Alaska. Thank you to John Perreault for the location figure for this report. Cross_Reference: Citation_Information: Originator: Cameron, C.E. Originator: Mulliken, K.M. Originator: Crass, S.W. Originator: Schaefer, J.R. Originator: Wallace, K.L. Publication_Date: 2019 Title: Alaska Volcano Observatory geochemical database, version 2 Series_Information: Series_Name: Digital Data Series Issue_Identification: DDS 8 v. 2 Publication_Information: Publication_Place: Fairbanks, Alaska, United States Publisher: Alaska Division of Geological & Geophysical Surveys Other_Citation_Details: 22 p Online_Linkage: http://doi.org/10.14509/30058 Cross_Reference: Citation_Information: Originator: Nye, C.J. Originator: Beget, J.E. Originator: Layer, P.W. Originator: Mangan, M.T. Originator: McConnell, V.S. Originator: McGimsey, R.G. Originator: Miller, T.P. Originator: Moore, R.B. Originator: Stelling, P.L. Publication_Date: 2018 Title: Geochemistry of some quaternary lavas from the Aleutian Arc and Mt. Wrangell Series_Information: Series_Name: Raw Data File Issue_Identification: RDF 2018-1 Publication_Information: Publication_Place: Fairbanks, Alaska, United States Publisher: Alaska Division of Geological & Geophysical Surveys Other_Citation_Details: 29 p Online_Linkage: http://doi.org/10.14509/29843 Cross_Reference: Citation_Information: Originator: Snyder, G.L. Publication_Date: 1959 Title: Geology of Little Sitkin Island, Alaska Series_Information: Series_Name: Bulletin Issue_Identification: B 1028-H Publication_Information: Publication_Place: United States Publisher: U.S. Geological Survey Other_Citation_Details: p. 169-210, 1 sheet, scale 1:20,000 Online_Linkage: http://dggs.alaska.gov/pubs/id/3574 Data_Quality_Information: Attribute_Accuracy: Attribute_Accuracy_Report: This publication is intended for the timely release of raw field and/or analytical data and does not include interpretations (other than brief discussion of geologic context) of the data presented. It has undergone limited internal review and does not necessarily conform to the DGGS editorial standards. The analyses reported here represent the same protocols applied by Nye and others (2018). The analytical precision and accuracy and significant digits of this dataset are consistent with the overview provided by Nye and others (2018). AVO geochemical analyses were re-calibrated in 2007 so that they are time-consistent, and the analyses reported here are internally consistent with data collected post-2007 (Nye and others, 2018). Logical_Consistency_Report: not applicable Completeness_Report: This data release is complete. Positional_Accuracy: Horizontal_Positional_Accuracy: Horizontal_Positional_Accuracy_Report: Location data were collected using handheld GPS devices and recorded in field notebooks. Location data utilize the WGS84 datum. Lineage: Process_Step: Process_Description: Field data collection - Rock samples were collected with the purpose of verifying the geochemistry of some of the prominent and possibly recent lava flows outcropping on the flanks of Little Sitkin volcano. With only two days of reconnaissance fieldwork, we targeted the voluminous block and ash flow deposits associated with the Patterson Point (Qp) unit, which was summarized by Snyder (1959) and representing a caldera forming eruption. The West Cove lava flow (Qlw) possibly represents one of the youngest eruptions from Little Sitkin (Miller and others, 1998). However, its young age has not been verified with age dating methods. Lava flow samples were chipped from the flows using a sledge hammer. Juvenile samples from fragmental units were either hand-picked as whole bomb or lapilli samples. Surface float was sampled from the ground surface. Process_Date: 2005 Process_Step: Process_Description: Rock sample analysis - Samples were chipped in the lab after fieldwork was completed to remove surface alteration. After chipping, the samples were cleaned in water in an ultrasonic bath and then dried at 60oC for 48 hours. Whole-rock major- and trace-element analyses were conducted by the Peter Hooper Geoanalytical lab at Washington State University (WSU). X-ray fluorescence (XRF) and Inductively-Coupled-Plasma Mass Spectrometry (ICP-MS) analyses were collected following the methods of Johnson and others (1999) and Knaack and others (unpub. data, 1994). The analyses reported here represent the same protocols applied by Nye and others (2018). The analytical precision and accuracy and significant digits of this dataset are consistent with the overview provided by Nye and others (2018). AVO geochemical analyses were re-calibrated in 2007 so that they are time-consistent, and the analyses reported here are internally consistent with data collected post-2007 (Nye and others, 2018). Process_Date: 2005 Spatial_Data_Organization_Information: Direct_Spatial_Reference_Method: point Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Geographic: Latitude_Resolution: 0.000001 Longitude_Resolution: 0.000001 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: 298.257223563000025 Entity_and_Attribute_Information: Detailed_Description: Entity_Type: Entity_Attribute_Layer_Name: geochem-data Entity_Type_Label: rdf2020-4-geochem-data.csv, rdf2020-4-geochem-data-dictionary.csv Entity_Type_Definition: Major-oxide XRF and trace-element XRF and ICP-MS analyses of volcanic rocks collected on the surface of Little Sitkin volcano. Entity_Type_Definition_Source: Alaska Division of Geological & Geophysical Surveys, Alaska Volcano Observatory, and University of Alaska Fairbanks, Department of Geosciences 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 Resource_Description: RDF 2020-4 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://doi.org/10.14509/30440 Fees: Free download Metadata_Reference_Information: Metadata_Date: 20200616 Metadata_Contact: Contact_Information: Contact_Organization_Primary: Contact_Person: Simone Montayne 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 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