Identification_Information: Citation: Citation_Information: Originator: Newberry, R.J. Originator: Herriott, T.M. Originator: Wartes, M.A. Originator: Gillis, R.J. Originator: Wypych, Alicja Publication_Date: 2016 Title: Major-oxide and trace-element geochemistry of mafic rocks in the Carboniferous Lisburne Group, Ivishak River area, northeastern Brooks Range, Alaska Geospatial_Data_Presentation_Form: report and digital data Series_Information: Series_Name: Raw Data File Issue_Identification: RDF 2016-2 Publication_Information: Publication_Place: Fairbanks, Alaska, United States Publisher: Alaska Division of Geological & Geophysical Surveys Other_Citation_Details: 2 p. Online_Linkage: http://dx.doi.org/10.14509/29563 Description: Abstract: The Alaska Division of Geological & Geophysical Surveys, in collaboration with the University of Alaska Fairbanks, collected mafic rocks in the Ivishak River area of the northeastern Brooks Range during summer 2009 for geochemical sampling. The sampled rocks, including lava flows, sills, and limy volcaniclastic strata, crop out within the carbonate-platform succession of the Carboniferous Lisburne Group. Refer to Herriott and others (2011) for additional information regarding the geologic and geographic context of these samples, preliminary implications of the geochemical data presented here, and a summary of known mafic rock occurrences in the Arctic Alaska terrane. The analytical data tables associated with this report are being released in digital format as comma-delimited text (CSV) files. Purpose: Mafic rock samples were collected from the Lisburne Group for petrographic, geochronologic, and geochemical analyses. Supplemental_Information: >border: Outline of the study area. >rock-major-minor-oxide-trace-element: Major- and minor-oxide and trace-element analysis of rock samples Time_Period_of_Content: Time_Period_Information: Single_Date/Time: Calendar_Date: 2009 Currentness_Reference: publication date Status: Progress: complete Maintenance_and_Update_Frequency: None planned Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -147.730504 East_Bounding_Coordinate: -147.704670 North_Bounding_Coordinate: 69.079843 South_Bounding_Coordinate: 69.000217 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 and Sampling Theme_Keyword: Geochemical Data Theme_Keyword: Geochemistry Theme_Keyword: Igneous Theme_Keyword: Igneous Rocks Theme_Keyword: Major Oxides Theme_Keyword: Trace Elements Place: Place_Keyword_Thesaurus: Alaska Division of Geological & Geophysical Surveys Place_Keyword: Brooks Range Place_Keyword: Ivishak River Place_Keyword: Sagavanirktok Quadrangle Stratum: Stratum_Keyword_Thesaurus: Alaska Division of Geological & Geophysical Surveys Stratum_Keyword: Ellesmerian Sequence Stratum_Keyword: Lisburne Group 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: Carboniferous 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: Wesley K. Wallace (deceased) collected additional samples from the Lisburne Group mafic rocks and mapped the geology of the area with Herriott and Gillis. This work was funded by the State of Alaska. Cross_Reference: Citation_Information: Originator: Herriott, T.M. Originator: Wartes, M.A. Originator: Newberry, R.J. Originator: Wallace, W.K. Originator: Gillis, R.J. Publication_Date: 2011 Title: Geology, geochemistry, and regional implications of mafic igneous rocks in the Carboniferous Lisburne Group, Ivishak River area, northeastern Brooks Range, Alaska (poster): The Sixth International Conference on Arctic Margins, 31 May-2 June 2011, Fairbanks, Alaska Series_Information: Series_Name: Poster and Presentation Issue_Identification: Herriott, T.M. and others, 2011 Publication_Information: Publication_Place: Fairbanks, Alaska, United States Publisher: Alaska Division of Geological & Geophysical Surveys Other_Citation_Details: 1 sheet Online_Linkage: http://dx.doi.org/10.14509/29562 Data_Quality_Information: Attribute_Accuracy: Attribute_Accuracy_Report: The chemistry of these rocks was determined using Slab XRF petrographic analysis because it is an expedient and cost-effective method of determining the bulk rock composition of fine-grained igneous rocks. The analytical results presented in this report were qualitatively evaluated by DGGS staff for general consistency with the geologic setting. However, significant additional geochemical analysis and geologic study would be required to fully evaluate petrogenesis and tectonic setting of the study area. Logical_Consistency_Report: not applicable Completeness_Report: This work should be considered reconnaissance in nature. Significant additional geochemical analysis and geologic study would be required to fully evaluate petrogenesis and tectonic setting of the mafic rocks in the Ivishak River area. Positional_Accuracy: Horizontal_Positional_Accuracy: Horizontal_Positional_Accuracy_Report: Location data were collected with handheld GPS devices, with location accuracy error typically less than 10 meters. Lineage: Source_Information: Source_Citation: Citation_Information: Originator: Keller, A.S. Originator: Morris, R.H. Originator: Detterman, R.L. Publication_Date: 1961 Title: Geology of the Shaviovik and Sagavanirktok rivers region, Alaska Series_Information: Series_Name: Professional Paper Issue_Identification: P 303-D Publication_Information: Publication_Place: United States Publisher: U.S. Geological Survey Other_Citation_Details: p. 169-222, 6 sheets, scale 1:500,000 Online_Linkage: http://dggs.alaska.gov/pubs/id/3831 Source_Scale_Denominator: 500000 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: Keller, A.S. and others, 1961 Source_Contribution: sample selection Process_Step: Process_Description: Sample selection - Mafic rock samples were collected from the Lisburne Group for petrographic, geochronologic, and geochemical analyses. A diverse suite of geochemistry samples was obtained to evaluate petrogenesis and tectonic setting for the mafic rocks and to constrain the lithologic variability in the interval. We typically collected several kilograms of rock at each sampling locality, using a rock hammer to sample material beneath the weathering rind of an outcrop's surface. Sampled material was placed in muslin or canvas bags that were labeled with pertinent stratigraphic and location information. Source_Used_Citation_Abbreviation: Keller, A.S. and others, 1961 Process_Date: 2009 Process_Step: Process_Description: Sample preparation - Rock samples were prepared by Advanced Instrumentation Laboratory at the University of Alaska Fairbanks. The preparation included cutting samples into 4-cm-diameter discs and polishing them on a lapidary wheel. Process_Date: 2009 Process_Step: Process_Description: Slab XRF analysis - The polished sample slabs were directly analyzed using the PANalytical Axios wavelength-dispersive XRF and SuperQ(tm) software. Nb, Rb, Sr, Y, and Zr were measured using the 37mmRbSrYZr analytical routine; other elements were measured with the IQ+37mmVac analytical routine. The 37mmRbSrYZr routine uses specific predetermined peak and background positions for which X-ray intensities are measured for 2-800 seconds (depending on the element). The intensity of the Rh Compton peak was used to estimate mass-absorption coefficients (MACs) for both unknowns and well-characterized natural standards. Peak intensities were computed and converted to concentrations using calibration curves employing at least ten natural rock standards. These procedures were routinely checked by analysis of secondary natural standards that were not employed in making the calibration curves. Elemental abundances are typically within 2-5 percent of the amount present for concentrations greater than 10 times the detection limit; within 5-10 percent of the amount present for concentrations 4-10 times the detection limit; and within 30 percent of the amount present for concentrations near the detection limit. The IQ+37mmVac program scans over a series of energies corresponding to a range from Ce K-alpha to O K-alpha. Peak heights and backgrounds and X-ray elemental interferences were picked with the software and checked manually to ensure quality control. Elemental abundances for all elements with atomic numbers between 8 and 92 were estimated from artificial standards; these estimations were used to calculate MACs for each element present above the detection limit. Revised concentrations were employed to calculate revised MACs until a stable solution was determined. Elemental abundances were then normalized to 100 percent. The software was routinely checked using pressed pellets of well-characterized natural rock standards. Elemental abundances are within 1-2 percent of the amount present for major elements, 2-5 percent of the amount present for minor elements, and 5-10 percent of the amount present for trace elements. Process_Date: 2009 Spatial_Data_Organization_Information: Direct_Spatial_Reference_Method: point Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Geographic: Latitude_Resolution: .000001 Longitude_Resolution: .000001 Geographic_Coordinate_Units: decimal degrees Geodetic_Model: Horizontal_Datum_Name: North American Datum of 1927 Ellipsoid_Name: Clarke 1866 Semi-major_Axis: 6378206.4 Denominator_of_Flattening_Ratio: 294.9786982 Entity_and_Attribute_Information: Detailed_Description: Entity_Type: Entity_Type_Label: rdf2016-2-border.shp Entity_Type_Definition: Outline of the study area. Entity_Type_Definition_Source: Alaska Division of Geological & Geophysical Surveys Entity_Attribute_Layer_Name: border Detailed_Description: Entity_Type: Entity_Attribute_Layer_Name: rock-major-minor-oxide-trace-element Entity_Type_Label: rdf2016-2-rock-major-minor-oxide-trace-element.csv, rdf2016-2-rock-major-minor-oxide-trace-element-methods.csv Entity_Type_Definition: Major- and minor-oxide and trace-element analysis of rock samples. Entity_Type_Definition_Source: Alaska Division of Geological & Geophysical Surveys Attribute: Attribute_Label: SAMPLE Attribute_Definition: Label assigned to identify the sample. Attribute_Definition_Source: Alaska Division of Geological & Geophysical Surveys Attribute_Domain_Values: Unrepresentable_Domain: Generic example of a sample identifier: YYAAA9999X: YY=last two digits of year, AAA=geologist's initials (one to three characters), 9999=unique station number, X= optional alpha character which indicates that multiple samples were collected at a given location or that multiple observations were recorded in the project database. Attribute: Attribute_Label: LONGITUDE Attribute_Definition: Longitude, NAD27 Attribute_Definition_Source: Alaska Division of Geological & Geophysical Surveys Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: -147.72647 Range_Domain_Maximum: -147.70869 Attribute_Units_of_Measure: decimal degrees Attribute: Attribute_Label: LATITUDE Attribute_Definition: Latitude, NAD27 Attribute_Definition_Source: Alaska Division of Geological & Geophysical Surveys Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 69.00166 Range_Domain_Maximum: 69.0784 Attribute_Units_of_Measure: decimal degrees Attribute: Attribute_Label: COLLECTOR Attribute_Definition: The geologist who collected the sample. Attribute_Definition_Source: Alaska Division of Geological & Geophysical Surveys Attribute_Domain_Values: Unrepresentable_Domain: The samples presented in this report were collected by: Gillis, Robert J., and Herriott, Trystan M. Attribute: Attribute_Label: DESCRIPTION Attribute_Definition: Description of the sample Attribute_Definition_Source: Alaska Division of Geological & Geophysical Surveys Attribute_Domain_Values: Unrepresentable_Domain: Characters 1 to 254 of a brief sample or station description. Attribute: Attribute_Label: DESCRIP_2 Attribute_Definition: Extension of the sample or station description for descriptions greater than 254 characters in length Attribute_Definition_Source: Alaska Division of Geological & Geophysical Surveys Attribute_Domain_Values: Unrepresentable_Domain: Characters greater than 254 of the sample or station description. Attribute: Attribute_Label: DESCRIP_3 Attribute_Definition: Extension of the sample or station description for descriptions greater than 508 characters in length Attribute_Definition_Source: Alaska Division of Geological & Geophysical Surveys Attribute_Domain_Values: Unrepresentable_Domain: Characters greater than 508 of the sample or station description. Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: NULL Enumerated_Domain_Value_Definition: The descriptive text is shorter than 508 characters. 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Enumerated_Domain_Value_Definition_Source: Advanced Instrumentation Laboratory at the University of Alaska Fairbanks Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 41.6 Range_Domain_Maximum: 41.6 Attribute_Units_of_Measure: percent Attribute: Attribute_Label: CaO_pct Attribute_Definition: Calcium oxide values measured in percent; Method: X-Ray Fluorescence Attribute_Definition_Source: Advanced Instrumentation Laboratory at the University of Alaska Fairbanks Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: NULL Enumerated_Domain_Value_Definition: Blank (NULL) field values may indicate that either the chemical species was not analyzed or that it was measured but found to be below detection limits. Enumerated_Domain_Value_Definition_Source: Advanced Instrumentation Laboratory at the University of Alaska Fairbanks Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.759 Range_Domain_Maximum: 8.1 Attribute_Units_of_Measure: percent Attribute: Attribute_Label: FeO_pct Attribute_Definition: Iron oxide (+2) values measured in percent; Method: X-Ray Fluorescence Attribute_Definition_Source: Advanced Instrumentation Laboratory at the University of Alaska Fairbanks Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.333 Range_Domain_Maximum: 9.52 Attribute_Units_of_Measure: percent Attribute: Attribute_Label: FeS2_pct Attribute_Definition: Iron disulfide values measured in percent; Method: Calculation Attribute_Definition_Source: Advanced Instrumentation Laboratory at the University of Alaska Fairbanks Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: NULL Enumerated_Domain_Value_Definition: Blank (NULL) field values may indicate that either the chemical species was not analyzed or that it was measured but found to be below detection limits. Enumerated_Domain_Value_Definition_Source: Advanced Instrumentation Laboratory at the University of Alaska Fairbanks Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 6.08 Range_Domain_Maximum: 6.08 Attribute_Units_of_Measure: percent Attribute: Attribute_Label: K2O_pct Attribute_Definition: Potassium oxide values measured in percent; Method: X-Ray Fluorescence Attribute_Definition_Source: Advanced Instrumentation Laboratory at the University of Alaska Fairbanks Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 1.03 Range_Domain_Maximum: 1.2 Attribute_Units_of_Measure: percent Attribute: Attribute_Label: MgO_pct Attribute_Definition: Magnesium oxide values measured in percent; Method: X-Ray Fluorescence Attribute_Definition_Source: Advanced Instrumentation Laboratory at the University of Alaska Fairbanks Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 3.59 Range_Domain_Maximum: 5.52 Attribute_Units_of_Measure: percent Attribute: Attribute_Label: MnO_pct Attribute_Definition: Manganese oxide values measured in percent; Method: X-Ray Fluorescence Attribute_Definition_Source: Advanced Instrumentation Laboratory at the University of Alaska Fairbanks Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.0437 Range_Domain_Maximum: 0.119 Attribute_Units_of_Measure: percent Attribute: Attribute_Label: Na2O_pct Attribute_Definition: Sodium oxide values measured in percent; Method: X-Ray Fluorescence Attribute_Definition_Source: Advanced Instrumentation Laboratory at the University of Alaska Fairbanks Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.0352 Range_Domain_Maximum: 5.56 Attribute_Units_of_Measure: percent Attribute: Attribute_Label: P2O5_pct Attribute_Definition: Phosphorus oxide values measured in percent; Method: X-Ray Fluorescence Attribute_Definition_Source: Advanced Instrumentation Laboratory at the University of Alaska Fairbanks Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.243 Range_Domain_Maximum: 0.58 Attribute_Units_of_Measure: percent Attribute: Attribute_Label: TiO2_pct Attribute_Definition: Titanium dioxide values measured in percent; Method: X-Ray Fluorescence Attribute_Definition_Source: Advanced Instrumentation Laboratory at the University of Alaska Fairbanks Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 1.57 Range_Domain_Maximum: 2.68 Attribute_Units_of_Measure: percent Attribute: Attribute_Label: BaO_pct Attribute_Definition: Barium oxide values measured in percent; Method: X-Ray Fluorescence Attribute_Definition_Source: Advanced Instrumentation Laboratory at the University of Alaska Fairbanks Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: NULL Enumerated_Domain_Value_Definition: Blank (NULL) field values may indicate that either the chemical species was not analyzed or that it was measured but found to be below detection limits. 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Enumerated_Domain_Value_Definition_Source: Advanced Instrumentation Laboratory at the University of Alaska Fairbanks Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 342 Range_Domain_Maximum: 1010 Attribute_Units_of_Measure: parts per million Attribute: Attribute_Label: Sr_ppm Attribute_Definition: Strontium values measured in parts per million; Method: X-Ray Fluorescence Attribute_Definition_Source: Advanced Instrumentation Laboratory at the University of Alaska Fairbanks Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 197.1 Range_Domain_Maximum: 616.6 Attribute_Units_of_Measure: parts per million Attribute: Attribute_Label: V_ppm Attribute_Definition: Vanadium values measured in parts per million; Method: X-Ray Fluorescence Attribute_Definition_Source: Advanced Instrumentation Laboratory at the University of Alaska Fairbanks Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 178 Range_Domain_Maximum: 314 Attribute_Units_of_Measure: parts per million Attribute: Attribute_Label: Zn_ppm Attribute_Definition: Zinc values measured in parts per million; Method: X-Ray Fluorescence Attribute_Definition_Source: Advanced Instrumentation Laboratory at the University of Alaska Fairbanks Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 84 Range_Domain_Maximum: 186 Attribute_Units_of_Measure: parts per million Attribute: Attribute_Label: Zr_ppm Attribute_Definition: Zirconium values measured in parts per million; Method: X-Ray Fluorescence Attribute_Definition_Source: Advanced Instrumentation Laboratory at the University of Alaska Fairbanks Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 152.2 Range_Domain_Maximum: 309 Attribute_Units_of_Measure: parts per million Attribute: Attribute_Label: Nb_ppm Attribute_Definition: Niobium values measured in parts per million; Method: X-Ray Fluorescence Attribute_Definition_Source: Advanced Instrumentation Laboratory at the University of Alaska Fairbanks Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 17.8 Range_Domain_Maximum: 49.5 Attribute_Units_of_Measure: parts per million Attribute: Attribute_Label: Y_ppm Attribute_Definition: Yttrium values measured in parts per million; Method: X-Ray Fluorescence Attribute_Definition_Source: Advanced Instrumentation Laboratory at the University of Alaska Fairbanks Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 15.3 Range_Domain_Maximum: 34 Attribute_Units_of_Measure: parts per million 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. 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