Metadata: Identification_Information: Citation: Citation_Information: Originator: Carver, G.A Originator: Bemis, S.P. Originator: Solie, D.N. Originator: Obermiller, K.E. Publication_Date: 200811 Title: Active and potentially active faults in or near the Alaska Highway corridor, Delta Junction to Dot Lake, Alaska Geospatial_Data_Presentation_Form: tabular digital data Series_Information: Series_Name: Preliminary Interpretive Report Issue_Identification: PIR 2008-3D Publication_Information: Publication_Place: Fairbanks, Alaska - USA Publisher: State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys Other_Citation_Details: 32 p. Online_Linkage: http://www.dggs.alaska.gov/pubs/pubs Description: Abstract: During the 2006 and 2007 field seasons, geologic features indicative of possible youthful surface faulting in or near the Alaska Highway corridor between Delta Junction and Dot Lake were identified by helicopter and fixed-wing air reconnaissance, augmented by interpretation of stereo air photos, remotely sensed images, and aeromagnetic and electromagnetic (EM) datanction to the eastern boundary of the Mt. Hayes Quadrangle. The largest of these faults is the previously unrecognized Dot "T" Johnson fault, a major west-trending, south-dipping thrust fault bordering the northern margin of the Alaska Range along the south side of the Tanana River valley. Two other faults identified as active in this study, the Canteen and Granite Mountain-Panoramic faults, are northeast-trending, left-lateral, strike-slip faults that connect segments of the Dot "T" Johnson thrust system, where they are separated by large left steps. The Billy Creek fault is a northeast-trending, left-lateral, strike-slip fault in the Yukon-Tanana Upland north of the Tanana River valley. Purpose: This report is a part of ADGGS's Alaska Natural Gas Pipeline Geology and Geohazards project. The study was done in anticipation of the proposed natural gas pipeline along the Alaska Highway corridor. Recognition of potentially active faults is an important factor in design engineering of infrastructure. Supplemental_Information: Attribute information for the following tables (entities) is included in this metadata file under the "Entity_and_Attribution_Information" section. Layers include: > Table1_Coordinates geographic coordinates for trenches, core site, and profiles > Appendix1_14C_Ages analytical results for radiocarbon samples Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 2006 Ending_Date: 2007 Currentness_Reference: ground condition Status: Progress: Complete Maintenance_and_Update_Frequency: Unknown Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -145.50000 East_Bounding_Coordinate: -143.90000 North_Bounding_Coordinate: 64.00000 South_Bounding_Coordinate: 63.50000 Keywords: Theme: Theme_Keyword_Thesaurus: None Theme_Keyword: Alaska Pipeline Theme_Keyword: C14 Theme_Keyword: Geologic Hazards Theme_Keyword: Faults Theme_Keyword: Faulting Theme_Keyword: Strike-Slip Theme_Keyword: Structural Geology Theme_Keyword: Structure Theme_Keyword: Thrust Theme_Keyword: Transportation Corridor Place: Place_Keyword_Thesaurus: None Place_Keyword: Alaska Highway Corridor Place_Keyword: Big Delta Place_Keyword: Big Delta Quadrangle Place_Keyword: Delta Junction Place_Keyword: Delta River Place_Keyword: Mount Hayes Quadrangle Place_Keyword: Tanana River Place_Keyword: Dot Lake Stratum: Stratum_Keyword_Thesaurus: None Stratum_Keyword: White River Ash Stratum_Keyword: Nenana Gravel Stratum_Keyword: Yukon-Tanana Upland Stratum_Keyword: Denali Fault Temporal: Temporal_Keyword_Thesaurus: None Temporal_Keyword: Holocene Temporal_Keyword: Quaternary Temporal_Keyword: Pleistocene Access_Constraints: This report, map, and/or dataset are 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. 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. Point_of_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys Contact_Position: GIS Data Manager/Cartographer Contact_Address: Address_Type: mailing and physical Address: 3354 College Road City: Fairbanks State_or_Province: AK Postal_Code: 99709-3707 Contact_Voice_Telephone: (907) 451-5029 Contact_Voice_Telephone: (907) 451-5020 Contact_Facsimile_Telephone: (907) 451-5050 Contact_Electronic_Mail_Address: dggspubs@alaska.gov Contact_Instructions: You may view our web site at http://www.dggs.alaska.gov for the latest information on available data. Please e-mail your questions and data requests when possible since our web site and e-mail address will remain current even if our phone number and mailing address change. Data_Set_Credit: This research was supported by 2005 and 2006 Alaska State Capital Improvement Projects funding. Additional Acknowledgments: Ray J. Weldon (University of Oregon) for reviews of the Billy Creek, Canteen, and Dot "T" Johnson I and II trenches; Peter Haeussler (USGS) and Gordon Seitz (San Diego State University) for reviews of the Sears Creek trench. Valuable discussions with Richard D. Reger (Reger Geologic Consulting), Robert F. Swenson (ADGGS Director and State Geologist), and Rodney A. Combellick (ADGGS Deputy Director) are also acknowledged. The report was reviewed by Richard D. Reger. Native_Data_Set_Environment: Adobe Acrobat Reader, and any text editor. Cross_Reference: Citation_Information: Originator: Reger, R.D. Originator: Stevens, D.S.P. Originator: Solie, D.N. Publication_Date: 2008 Title: Surficial-geologic map, Alaska Highway Corridor, Delta Junction to Dot Lake, Alaska Geospatial_Data_Presentation_Form: map Series_Information: Series_Name: Preliminary Interpretive Report Issue_Identification: PIR 2008-3a Publication_Information: Publication_Place: Fairbanks AK Publisher: Alaska Division of Geological & Geophysical Surveys Other_Citation_Details: 2 sheets, scale 1:63,360 Cross_Reference: Citation_Information: Originator: Reger, R.D. Originator: Solie, D.N. Publication_Date: 2008 Title: Engineering-geologic map, Alaska Highway Corriodor, Delta Junction to Dot Lake, Alaska Geospatial_Data_Presentation_Form: tabular digital data Series_Information: Series_Name: Preliminary Interpretive Report Issue_Identification: PIR 2008-3b Publication_Information: Publication_Place: Fairbanks AK Publisher: Alaska Division of Geological & Geophysical Surveys Other_Citation_Details: 2 sheets, scale 1:63,360 Data_Quality_Information: Attribute_Accuracy: Attribute_Accuracy_Report: Locations of trenches, core sites and profiles are given for the approximate mid-point of each feature. The radiocarbon samples were carefully extracted from trench walls and cores to minimize contamination. Samples were stored in the field in aluminum foil packets which were placed in labeled plastic bags after air-drying, and the dry samples transferred to labeled glass vials once they were out of the field. Before being sent to the laboratory for analyses, each sample was inspected through a binocular microscope, picked clean of mineral debris, and for some samples, individual plant macrofossils or charcoal grains were separated for analysis. Beta Analytic Radiocarbon Dating Laboratory in Miami Florida performed the radiocarbon age analyses on the 14C samples. Samples were pretreated using the acid/alkali/acid standard pretreatment protocol. All analysis was done using AMS methods and included 13C corrections. Quoted errors for laboratory ages represent 1 standard deviation statistics (68% probability) and are based on combined measurements of the sample, background, and modern reference standards. Measured 13C/12C ratios were calculated relative to the PDB-1 international standard and the radiocarbon years before present ("Lab Age") were normalized to -25 per mil. Laboratory ages were then calibrated using the OxCal v4.0 calibration program and the IntCal 04 calibration curve. All calibrated ages are reported as calibrated 2 sigma ranges before present (cal BP). The data in Appendix 1 report the method used, material type, paleoseismic significance, sample and lab numbers, lab age, 13C/12C ratios, and two-sigma calendar calibration result for each of the 20 radiocarbon samples. References for the calibration methods, as reported by Beta Analytic Inc. are: Stuiver, M., and van der Plicht, H., Radiocarbon, 1998, vol. 40, no. 3, p. xii-xiii. Stuiver, M. and others, Radiocarbon, 1998, vol. 40, no. 3, p. 1041-1083. Talma, A.S. and Vogel, J.C., Radiocarbon, 1993, vol. 35, no. 2, p. 317-322. Logical_Consistency_Report: not applicable Completeness_Report: This dataset includes 18 of the 23 carbon samples that were submitted from this project to Beta Analytic Inc. after the 2007 field season. Of the 23 submitted, three did not have sufficient carbon material to date and the analyses were cancelled. The two unreported samples, from the Billy Creek Trench, yielded results with modern 14C signatures. These samples, both from within a half meter from the surface, are interpreted as being the result of recent localized animal activity and thus not representative. Positional_Accuracy: Horizontal_Positional_Accuracy: Horizontal_Positional_Accuracy_Report: Locations of points recorded in the table were recorded using a Garmin GPS model 76CSx with a horizontal error of 4 meters or less. The locations are for approximate mid-point of each trench. Individual radiocarbon age samples in Apppendix 1 are referred to their respective trenches and core sites whose locations are listed in Table 1. The actual location of each radiocarbon sample within the trench or core is shown in the trench logs and core logs in the figures of this report. Locations shown on the logs were determined using a metric tape, measuring distances from defined origins, to half-centimeter accuracy. Lineage: Source_Information: Source_Citation: Citation_Information: Originator: Bemis, S.P. Originator: Wallace, W.K. Publication_Date: 2007 Title: Neotectonic framework of the north-central Alaska Range foothills Geospatial_Data_Presentation_Form: book chapter Series_Information: Series_Name: Geological Society of America Special Paper 431 Issue_Identification: SP 431 Other_Citation_Details: p. 549-572 Larger_Work_Citation: Citation_Information: Originator: Ridgeway, K.D. Originator: Trop, J.M. Originator: Glen, M.G. Originator: O'Neill, J.M. Publication_Date: 2007 Title: Tectonic growth of a collisional continental margin Geospatial_Data_Presentation_Form: document Series_Information: Series_Name: Geological Society of America Special Paper Issue_Identification: Speical Paper 431 Other_Citation_Details: editors Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 2007 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Bemis and Wallace, 2007 Source_Contribution: tectonic framework Source_Information: Source_Citation: Citation_Information: Originator: Bemis, S.P. Publication_Date: 2004 Title: Neotectonic framework of the north-central Alaska Range foothills Geospatial_Data_Presentation_Form: document Publication_Information: Publication_Place: Fairbanks, AK Publisher: University of Alaska Fairbanks Other_Citation_Details: Masters Theses, 142 pages Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 2004 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Bemis thesis, 2004 Source_Contribution: tectonic framework Source_Information: Source_Citation: Citation_Information: Originator: Bemis, S.P. Originator: Weldon, R.J. Originator: Burns, P.A.C. Publication_Date: 2005 Title: Progress in characterizing active faults of the northern flank of the Alaska Range Geospatial_Data_Presentation_Form: conference proceedings Series_Information: Series_Name: Geological Society of America Abstracts with Programs Issue_Identification: v. 37, no. 7, p.78 Other_Citation_Details: Geological Society of America Abstracts with Programs, vol.37, no. 7, p. 78, Annual Meeting, October 16, 2005 Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 2005 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Bemis, Weldon & Burns, 2005 Source_Contribution: Canteen fault abstract Source_Information: Source_Citation: Citation_Information: Originator: Burns, L.E. Originator: Fugro Airborne Surveys Originator: Stevens Exploration Management Corp. Publication_Date: 2006 Title: Line, grid and vector data, and plot files for the airborne geophysical survey of the Alaska Highway corridor, east-central Alaska Geospatial_Data_Presentation_Form: vector digital data Series_Information: Series_Name: Geophysical Report Issue_Identification: GR 2006-6 Publication_Information: Publication_Place: Fairbanks AK Publisher: Alaska Division of Geological & Geophysical Surveys Type_of_Source_Media: DVD Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 2006 Source_Currentness_Reference: ground condition Source_Citation_Abbreviation: Burns, 2006 Source_Contribution: airborne geophysical data Source_Information: Source_Citation: Citation_Information: Originator: Carver, G.A. Originator: Plafker, George Originator: Metz, Mike Originator: Cluff, Lloyd Originator: Slemmons, Burt Originator: Johnson, Elden Originator: Roddick, Jim Originator: Sorensen, Steve Publication_Date: 2004 Title: Surface rupture on the Denali fault interpreted from tree damage during the 1912 Delta River MW7.2-7.4 earthquake: Implications for the 2002 Denali fault earthquake slip distribution Geospatial_Data_Presentation_Form: journal article Series_Information: Series_Name: Bulletin of the Seismological Society of America Issue_Identification: vol 94, no. 6B Other_Citation_Details: p. S58-S71 Larger_Work_Citation: Citation_Information: Originator: Rowe, C.A. Originator: Christensen, Doug Originator: Carver, G.A. Publication_Date: 2004 Title: The 2002 Denali fault earthquake sequence Geospatial_Data_Presentation_Form: document Series_Information: Series_Name: Bulletin of the Seismoloigcal Society of America Issue_Identification: Dedicated Issue Other_Citation_Details: v.94, no.6B Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 2002 Source_Currentness_Reference: ground condition Source_Citation_Abbreviation: Carver and others, 2004 Source_Contribution: Denali fault surface rupture Source_Information: Source_Citation: Citation_Information: Originator: Carver, G.A. Originator: Plafker, George Originator: Metz, Mike Originator: Cluff, Lloyd Originator: Bemis, Sean Originator: Roddick, Jim Originator: Redington, Julie Originator: Sorensen, Steve Publication_Date: 2006 Title: Late Quaternary growth of thrust faults and associated folds in the eastern part of the Northern Foothills Fold and Thrust Belt, central Alaska Range, Alaska Geospatial_Data_Presentation_Form: conference proceedings Publication_Information: Publication_Place: Alaska Publisher: American Geophysical Union Other_Citation_Details: Chapman Conference on Active Tectonics and Seismic Potential of Alaska, May 11-14, 2006 Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 2006 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Carver and others, 2006 Source_Contribution: eastern Northern Foothills fold and thrust belt Source_Information: Source_Citation: Citation_Information: Originator: Matmon, Ari Originator: Schwartz, D.P. Originator: Haeussler, P.J. Originator: Finkel, Robert Originator: Lienkaemper, J.J. Originator: Stenner, H.D. Originator: Dawson, T.E. Publication_Date: 2006 Title: Denali fault slip rates and Holocene-late Pleistocene kinematics of central Alaska Geospatial_Data_Presentation_Form: journal article Series_Information: Series_Name: Geology Issue_Identification: v.34, no.8 Other_Citation_Details: p.645-648 Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 2006 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Matmon and others, 2006 Source_Contribution: Denali slip rates, central Alaska kinematics Source_Information: Source_Citation: Citation_Information: Originator: Page, R.A. Originator: Plafker, George Originator: Pulpan, Hans Publication_Date: 1995 Title: Block rotation in east-central Alaska: a framework for evaluating earthquake potential? Geospatial_Data_Presentation_Form: journal article Series_Information: Series_Name: Geology Issue_Identification: v.23, no.7 Other_Citation_Details: p.629-632 Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1995 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Page and others, 1995 Source_Contribution: block rotation in east-central Alaska Source_Information: Source_Citation: Citation_Information: Originator: Plafker, George Originator: Gilpin, L.M. Originator: Lahr, J.C. Publication_Date: 1994 Title: Neotectonic map of Alaska Geospatial_Data_Presentation_Form: book chapter Other_Citation_Details: scale 1:2,500,000 Larger_Work_Citation: Citation_Information: Originator: Plafker, George Originator: Berg, H.C. Publication_Date: 1994 Title: The geology of Alaska Geospatial_Data_Presentation_Form: document Series_Information: Series_Name: DNAG Issue_Identification: v.G-1 Publication_Information: Publication_Place: Boulder, CO Publisher: Geological Society of America Other_Citation_Details: editors 12 plates Type_of_Source_Media: paper Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 1994 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Plafker and others, 1994 Source_Contribution: Neotectonic map of Alaska Source_Information: Source_Citation: Citation_Information: Originator: Reger, R.D. Originator: Stevens, D.S.P. Originator: Solie, D.N. Publication_Date: 2008 Title: Surficial-geologic map of the Alaska Highway corridor, Delta Junction to Dot Lake, Alaska Geospatial_Data_Presentation_Form: map Series_Information: Series_Name: Preliminary Interpretive Report Issue_Identification: PIR 2008-3a Publication_Information: Publication_Place: Fairbanks, AK Publisher: Alaska Division of Geological & Geophysical Surveys Other_Citation_Details: 2 sheets, scale 1:63,360 Type_of_Source_Media: digital database file Source_Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 2008 Source_Currentness_Reference: publication date Source_Citation_Abbreviation: Reger and others, 2008 Source_Contribution: surficial geology map Process_Step: Process_Description: Initial reconnaissance - an initial interpretation of stereo air photos, remote sensed images, DEM's, and topographic maps of the corridor and surrounding regions was done prior to fieldwork. We also conducted a review of published and unpublished reports and geologic and geophysical survey maps to identify and locate lineaments and potentially active faults for further study. This initial phase was followed by fixed wing and helicopter reconnaissance of the corridor and adjacent regions with emphasis on potential faults and lineaments identified from the review of literature, air photos, remote sensed images, and maps. Based on the initial studies and the air reconnaissance, we identified lineaments and potentially active faults judged to warrant further studied in the field and selected sites for detailed investigation. Source_Used_Citation_Abbreviation: Bemis and Wallace, 2007 Source_Used_Citation_Abbreviation: Bemis thesis, 2004 Source_Used_Citation_Abbreviation: Bemis, Weldon & Burns, 2005 Source_Used_Citation_Abbreviation: Burns, 2006 Source_Used_Citation_Abbreviation: Carver and others, 2004 Source_Used_Citation_Abbreviation: Carver and others, 2006 Source_Used_Citation_Abbreviation: Matmon and others, 2006 Source_Used_Citation_Abbreviation: Page and others, 1995 Source_Used_Citation_Abbreviation: Plafker and others, 1994 Source_Used_Citation_Abbreviation: Reger and others, 2008 Process_Date: 2007 Process_Step: Process_Description: Fieldwork - In July-August 2007, to further study specific sites identified in preliminary reconnaissance. The detailed investigations included geologic and geomorphic mapping, scarp profiling, measurement of scarp height and fault offset, and at selected sites, trenching and coring to develop paleoseismic information for active fault characterization Process_Date: 2007 Process_Step: Process_Description: Trenching - Trench sites were chosen to transect features suspected to be active faults, in order to expose a cross sectional view of faults and the most recent stratigraphy. At sites that were inaccessible to motorized excavation equipment we hand-dug the trenches. To facilitate field interpretation and logging we used nails to pin colored flagging along exposed contacts and faults on the cleaned trench walls. Logging of the trench walls was done by placing a grid of horizontal and vertical string lines over the exposed trench wall, and used this grid to accurately measure and transfer each feature to cross section Mylar. Each stratigraphic layer and feature of interest was described and locations of radiocarbon samples were recorded. Soil and sediment colors for each stratigraphic unit were defined using a Munsell Soil Color chart. Where possible, we collected radiocarbon samples from layers bounding faulting events to bracket the age of paleo-earthquakes interpreted from the stratigraphy. Upon completion, we backfilled the trenches, re-contoured the trench sites and replaced the natural vegetation. Process_Date: 2007 Process_Step: Process_Description: Labwork - The radiocarbon samples were carefully extracted to minimize contamination. Samples were stored in the field in aluminum foil bindles which were placed in labeled plastic bags after air-drying, and the dry samples transferred to labeled glass vials once they were out of the field. Before being sent to the laboratory for analyses, each sample was inspected through a binocular microscope, picked clean of mineral debris, and for some samples, individual plant macrofossils or charcoal grains were separated for analysis. Beta Analytic Radiocarbon Dating Laboratory in Miami Florida performed the radiocarbon age analyses on the 14C samples. Process_Date: 2007 Process_Step: Process_Description: Metadata creation - Metadata were assembled by D.N. Solie to FGDC Standards using Metavist 1.2, DGGS 7.05, a data entry program for FGDC metadata with XML output. Process_Date: 2008 Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Planar: Grid_Coordinate_System: Grid_Coordinate_System_Name: Universal Transverse Mercator Universal_Transverse_Mercator: UTM_Zone_Number: 6 Transverse_Mercator: Scale_Factor_at_Central_Meridian: 0.9996 Longitude_of_Central_Meridian: -147.00000 Latitude_of_Projection_Origin: 0 False_Easting: 500000.0 False_Northing: 0 Planar_Coordinate_Information: Planar_Coordinate_Encoding_Method: coordinate pair Coordinate_Representation: Abscissa_Resolution: 0.0005 Ordinate_Resolution: 0.0005 Planar_Distance_Units: meters Planar_Coordinate_Layer_Name: UTM Geodetic_Model: Horizontal_Datum_Name: North American Datum of 1927 Ellipsoid_Name: Clarke 1866 Semi-major_Axis: 6378206.4 Denominator_of_Flattening_Ratio: 294.978698 Entity_and_Attribute_Information: Detailed_Description: Entity_Type: Entity_Attribute_Layer_Name: Table1_coordinates Entity_Type_Label: Table1_coordinates.csv Entity_Type_Definition: Geographic coordinates for trenches, core site and profiles Entity_Type_Definition_Source: Alaska Division of Geological & Geophysical Surveys Attribute: Attribute_Label: Name Attribute_Definition: Name of the trench, core site or profile Attribute_Definition_Source: Alaska Division of Geological & Geophysical Surveys Attribute_Domain_Values: Unrepresentable_Domain: Name of the trench, core site or profile Attribute: Attribute_Label: Latitude Attribute_Definition: Latitude of trench, core site or profile, NAD 27 Alaska datum. Attribute_Definition_Source: Alaska Division of Geological & Geophysical Surveys Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 63.6067 Range_Domain_Maximum: 63.8421 Attribute_Units_of_Measure: degrees Attribute: Attribute_Label: Longitude Attribute_Definition: Longitude of trench, core site or profile, NAD 27 Alaska datum Attribute_Definition_Source: Alaska Division of Geological & Geophysical Surveys Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: -145.4560 Range_Domain_Maximum: -143.9254 Attribute_Units_of_Measure: degrees Attribute: Attribute_Label: UTM E NAD 27 Attribute_Definition: Easting in UTM zone 6 or 7, NAD 27, Clark 1866 Attribute_Definition_Source: Alaska Division of Geological & Geophysical Surveys Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 351570 Range_Domain_Maximum: 638523 Attribute_Units_of_Measure: meters Attribute: Attribute_Label: UTM N NAD 27 Attribute_Definition: Northing in UTM, zone 6 or 7, NAD 27, Clark 1866 Attribute_Definition_Source: Alaska Division of Geological & Geophysical Surveys Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 7057887 Range_Domain_Maximum: 7080146 Attribute_Units_of_Measure: meters Attribute: Attribute_Label: UTM Zone Attribute_Definition: UTM zone in which trench, core site or profile is located Attribute_Definition_Source: Alaska Division of Geological & Geophysical Surveys Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 6 Range_Domain_Maximum: 7 Attribute_Units_of_Measure: zone Attribute: Attribute_Label: USGS quadrangle Attribute_Definition: 1:63,360 USGS quadrangle in which trench, core site or profile is located Attribute_Definition_Source: Alaska Division of Geological & Geophysical Surveys Attribute_Domain_Values: Unrepresentable_Domain: 1:63,360 USGS quadrangle in the Mount Hayes or Tanacross quadrangles. Detailed_Description: Entity_Type: Entity_Attribute_Layer_Name: Appendix1_14C_ages Entity_Type_Label: Appendix1_14C_ages.csv Entity_Type_Definition: Analytical results for radiocarbon samples Entity_Type_Definition_Source: Alaska Division of Geological & Geophysical Surveys and Beta Analytic Inc. Attribute: Attribute_Label: Site Attribute_Definition: Name of the trench, core site or profile Attribute_Definition_Source: Alaska Division of Geological & Geophysical Surveys Attribute_Domain_Values: Unrepresentable_Domain: Name of the trench, core site or profile Attribute: Attribute_Label: Sample Number Attribute_Definition: Sample number which is unique identifier for each radiocarbon sample, based on an abbreviation for trench followed by a consecutive number of sample collected from trench and depth in cm from surface. Attribute_Definition_Source: Alaska Division of Geological & Geophysical Surveys Attribute_Domain_Values: Unrepresentable_Domain: Unique sample number given to each radiocarbon sample analyzed. Attribute: Attribute_Label: Location Attribute_Definition: Location of sample within trench wall, as shown on gridded trench log, or in core. Attribute_Definition_Source: Alaska Division of Geological & Geophysical Surveys Attribute_Domain_Values: Unrepresentable_Domain: Description of location of each sample based on trench log. Attribute: Attribute_Label: Sample Material Attribute_Definition: Type of carbon material dated Attribute_Definition_Source: Alaska Division of Geological & Geophysical Surveys Attribute_Domain_Values: Unrepresentable_Domain: Type of carbon analyzed (ie, detrital charcoal, peaty material, wood, charcoal). Attribute: Attribute_Label: Paleoseismic Significance Attribute_Definition: Purpose for obtaining the age date; what constraints on timing the age imparts Attribute_Definition_Source: Alaska Division of Geological & Geophysical Surveys Attribute_Domain_Values: Unrepresentable_Domain: Paleoseismic event or timing constrained by age date. Attribute: Attribute_Label: Lab Number Attribute_Definition: Unique identifying sample number assigned by the laboratory at Beta Analytic Inc. Attribute_Definition_Source: Beta Analytic Inc. Attribute_Domain_Values: Unrepresentable_Domain: Unique sample identifying numbers, preceded by "Beta" (eg, Beta-235569) Attribute: Attribute_Label: Lab_Age_BP Attribute_Definition: Radiocarbon years before present, ("present" being 1950). Quoted errors represent 1 standard deviation statistics. Attribute_Definition_Source: Alaska Division of Geological & Geophysical Surveys and Beta Analytic Inc. Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 10 Range_Domain_Maximum: 8690 Attribute_Units_of_Measure: years Attribute: Attribute_Label: 13C/12C Attribute_Definition: Measured ratio of 13C to 12C, calculated relative to the PCB-1 international standard. Attribute_Definition_Source: Alaska Division of Geological & Geophysical Surveys and Beta Analytic Inc. Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: -28.2 Range_Domain_Maximum: -23.5 Attribute_Units_of_Measure: 0/00 Attribute: Attribute_Label: Cal BP Attribute_Definition: Radiocarbon age calibrated to calendar years using the OxCal v4.0 calibration program and teh IntCal 04 calibration curve. Ages reported as calibrated 2 sigma ranges before present. Attribute_Definition_Source: Alaska Division of Geological & Geophysical Surveys and Beta Analytic In. Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 12,870 Attribute_Units_of_Measure: years Distribution_Information: Distributor: Contact_Information: Contact_Organization_Primary: Contact_Organization: State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys Contact_Position: Natural Resource Technician 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_TDD/TTY_Telephone: None available. 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 Web site (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: Preliminary Interpretive Report PIR 2008-3D Distribution_Liability: The State of Alaska makes no express or implied warranties (including warranties of merchantability and fitness) with respect to the character, function, or capabilities of the electronic services 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, any failure thereof, or otherwise, and in no event will the State of Alaska's liability to the requester or anyone else exceed the fee paid for the electronic service or product. Standard_Order_Process: Non-digital_Form: Current publication is available on paper. 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. Fees: Printed publication can be purchased for $4, (contact information below) plus shipping if mailed. Standard_Order_Process: Digital_Form: Digital_Transfer_Information: Format_Name: PDF Format_Version_Number: 1.6 File_Decompression_Technique: No compression applied Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: http://www.dggs.alaska.gov/pubs/ Digital_Form: Digital_Transfer_Information: Format_Name: CSV Format_Version_Number: 2008 File_Decompression_Technique: No compression applied Digital_Transfer_Option: Offline_Option: Offline_Media: CD-ROM Recording_Format: Joliet Fees: Digital files on CD-ROM are available for $10.00 (contact information below). Scanned images of these products may be viewed online or downloaded for free from the DGGS Web site. Ordering_Instructions: Order 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: Two weeks unless special arrangements are made and an express fee is paid. Metadata_Reference_Information: Metadata_Date: 20080930 Metadata_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys Contact_Position: Metadata Manager Contact_Address: Address_Type: mailing and physical address Address: 3354 College Road City: Fairbanks State_or_Province: AK Postal_Code: 99709-3707 Country: USA Contact_Voice_Telephone: 907-451-5039 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 contact us through the e-mail address above whenever possible. Metadata_Standard_Name: FGDC Content Standard for Digital Geospatial Metadata Metadata_Standard_Version: FGDC-STD-001-1998 Metadata_Access_Constraints: none 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 State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys.