Werdon, M.B. Newberry, R.J. Szumigala, D.J. Freeman, L.K. Athey, J.E. 2007 tabular digital data, report Raw Data File RDF 2007-4 Fairbanks, AK, USA State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys 49 p. http://www.dggs.dnr.state.ak.us/pubs/pubs?reqtype=citation&ID=15840 The rock samples in this publication were collected in 2006 during geologic field mapping within the Council airborne geophysical survey tract. The analyses were acquired to aid interpretation and development of the geologic map and evaluation of the area's mineral potential. To further geologic understanding of the area, igneous and metamorphic rock samples were selected for whole-rock geochemical analysis. Unweathered or minimally weathered rock samples were preferentially selected for analysis. Non-carbonate carbon analyses were obtained to determine the percentage of graphite in metasedimentary rocks. To help evaluate the area's mineral resource potential, rock samples were selected for geochemical analysis; these rocks were either visibly mineralized, or had features that suggested the potential to be mineralized. The analyses in this report were acquired during the second year of a two-year mapping program, the purpose of which is to provide 1:50,000-scale geologic mapping of a portion of the Council airborne geophysical surveys released by DGGS in 2003 (Burns et al., 2003). The geophysical survey (helicopter-based aeromagnetic and electromagnetic data) and geologic mapping are part of the Alaska Airborne Geophysical/Geological Mineral Inventory Program, a special multi-year investment by the State of Alaska to expand Alaska's geologic and mineral resources knowledge base, catalyze future private-sector mineral exploration and development, and guide state planning. This publication contains 22 whole-rock (major-oxide, minor-oxide, +/- trace-element), 211 trace geochemical (metals and semi-metals), and 3 non-carbonate carbon analyses for rocks collected by DGGS in 2006 in the Casadepaga River-Bluff area of the Solomon quadrangle. Two additional whole-rock samples were collected in the Nome quadrangle. Attribute information for the following tables (entities) is included in this metadata file under the "Entity_and_Attribute_Information" section. Each table is listed and described in detail under its own heading starting "Entity_Type_Label." Tables include: >Table2 Trace-element geochemical analyses >Table4 Major-oxide, minor-oxide, and trace-element analyses >Table7 Location and description of rocks 2003 2007 2007 (publication date) Complete none planned -165.2179 -163.6550 64.9263 63.7188 64.9263 -164.5056 64.9263 -163.6550 63.7188 -163.6550 63.7188 -164.5056 64.9263 -164.5056 64.4540 -165.2179 64.5924 -165.2179 64.5924 -165.0467 64.4540 -165.0467 64.4540 -165.2179 ISO 19115 Topic Category geoscientificInformation None Geochemistry Major Oxides STATEMAP Project Trace Metals None Alaska, State of Casadepaga River Bluff Council Council Mining District Nome Quadrangle Seward Peninsula Solomon Quadrangle 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). 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. This project is part of the Alaska Airborne Geophysical/Geological Mineral Inventory Program funded by the Alaska State Legislature and managed by State of Alaska, Department of Natural Resources (DNR), Division of Geological & Geophysical Surveys (DGGS). Partial funding for the geologic mapping and geochemical analyses was also provided through the U.S. Geological Survey STATEMAP Program under award number 06HQAG0024. Microsoft Windows XP SP2, ArcGIS 9.+, and any text editor. Burns, L.E. Fugro Airborne Surveys Stevens Exploration Management Corporation 2003 tabular digital data, raster digital data, vector digital data Geophysical Report GPR 2003-2 Fairbanks, AK, USA State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys 2 CD-ROMs None Pritchard, R.A. Fugro Airborne Surveys 2003 report Geophysical Report GPR 2003-3 Fairbanks, AK, USA State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys http://www.dggs.dnr.state.ak.us/pubs/pubs?reqtype=citation&ID=3247 Burns, L.E. Clautice, K.H. 2003 atlas Geophysical Report GPR 2003-4 Fairbanks, AK, USA State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys Sixteen 8.5" x 11" pages, including 5 color or black and white maps; and 1 topographic overlay on acetate. Publication contains lists of geophysical maps associated with this survey. http://www.dggs.dnr.state.ak.us/pubs/pubs?reqtype=citation&ID=2903 Werdon, M.B. Szumigala, D.J. Newberry, R.J. Athey, J.E. Hicks, S.A. 2005 report and tabular digital data Raw Data File RDF 2005-2 Fairbanks, AK, USA State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys 46 p. http://www.dggs.dnr.state.ak.us/pubs/pubs?reqtype=citation&ID=7130 Werdon, M.B. Stevens, D.S.P. Newberry, R.J. Szumigala, D.J. Athey, J.E. Hicks, S.A. 2005 report Report of Investigation RI 2005-1 Fairbanks, AK, USA State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys 24 p. http://www.dggs.dnr.state.ak.us/pubs/pubs?reqtype=citation&ID=7192 Werdon, M.B. Stevens, D.S.P. Newberry, R.J. Szumigala, D.J. Athey, J.E. Hicks, S.A. 2005 map and vector digital data Report of Investigation RI 2005-1A Fairbanks, AK, USA State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys 1 sheet, 1:50,000 scale. http://www.dggs.dnr.state.ak.us/pubs/pubs?reqtype=citation&ID=14447 Werdon, M.B. Newberry, R.J. Szumigala, D.J. Athey, J.E. Hicks, S.A. 2005 map and vector digital data Report of Investigation RI 2005-1B Fairbanks, AK, USA State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys 1 sheet, 1:50,000 scale. http://www.dggs.dnr.state.ak.us/pubs/pubs?reqtype=citation&ID=7193 Stevens, D.S.P. 2005 map and vector digital data Report of Investigation RI 2005-1C Fairbanks, AK, USA State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys 1 sheet, 1:50,000 scale. http://www.dggs.dnr.state.ak.us/pubs/pubs?reqtype=citation&ID=14445 Newberry, R.J. Werdon, M.B. Stevens, D.S.P. Athey, J.E. Szumigala, D.J. 2005 map and vector digital data Report of Investigation RI 2005-1D Fairbanks, AK, USA State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys 1 sheet, 1:50,000 scale. http://www.dggs.dnr.state.ak.us/pubs/pubs?reqtype=citation&ID=14448 Newberry, R.J. Werdon, M.B. Athey, J.E. Szumigala, D.J. 2005 map and vector digital data Report of Investigation RI 2005-1E Fairbanks, AK, USA State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys 1 sheet, 1:50,000 scale. http://www.dggs.dnr.state.ak.us/pubs/pubs?reqtype=citation&ID=7194 Stevens, D.S.P. 2005 map and vector digital data Report of Investigation RI 2005-1F Fairbanks, AK, USA State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys 1 sheet, 1:50,000 scale. http://www.dggs.dnr.state.ak.us/pubs/pubs?reqtype=citation&ID=14446 All geochemical, whole rock, and non-carbonate carbon analyses were performed by ALS Chemex, except for trace elements presented in RDF 2007-4, table 4, which were determined at the Advanced Instrumentation Laboratory at the University of Alaska Fairbanks (UAF). Geochemical samples were analyzed for gold using atomic absorption spectroscopy following a fire assay fusion (FA-AAS). For samples with greater than 10 parts per million gold, these samples were also assayed using fire assay and gravimetric finish (FA-GRAV). Mercury was analyzed by cold-vapor atomic absorption spectroscopy and inductively coupled plasma-atomic emission spectroscopy (ICP-AES) methods following an aqua regia digestion. For samples with greater than 10,000 parts per million copper, these samples were also assayed by atomic absorption spectroscopy. All other geochemical analyses were performed by the ICP-AES method after aqua regia digestion. This method of digestion is possibly incomplete for certain elements and may result in lower analytical results. The elements that may be affected by incomplete digestion, as well as the analytical methods, and upper and lower detection limits for each element, are tabulated in RDF 2007-4, Table 5. For the whole rock samples, major- and minor-element oxides were determined by X-ray fluorescence spectrometry following a lithium borate fusion (LBF-XRF). All trace elements (Nb, Rb, Sr, Y, Zr) were determined by wavelength dispersive X-ray fluorescence on pressed pellets, first by ALS Chemex, and then by UAF. Analytical methods, and detection limits for each element for the whole rock analyses are tabulated in RDF 2007-4, Table 6. All upper and lower detection limits listed are those reported by ALS Chemex or UAF. For the non-carbonate carbon samples, concentration values were determined by Leco induction furnace pyrolysis following a dilute acid digestion. Analytical methods, and detection limits for each element for the non-carbonate carbon analyses are tabulated in RDF 2007-4, Table 7. Upper and lower detection limits listed are those reported by ALS Chemex. No topologic relationships are present in data. This dataset contains all of the analyses for samples collected for trace-element geochemistry, whole rock, and non-carbonate carbon analyses in the Solomon and Nome quadrangles during the summer of 2006. Location data were downloaded from Garmin 12XL GPS units into an Access database. 6 A value of estimated position error in meters was calculated by Garmin 12XL GPS units and recorded for each sample location. Estimated position error calculated by Garmin 12XL units was not better than 3 meters and averaged approximately 6 meters. The GPS system suffers from calculation and geometric error. This error results from items such as error in satellite positions, mathematical error introduced by the formulas used by the GPS unit for calculating position, and errors caused by narrow satellite alignments. Estimated position error is a value determined by the GPS manufacturer for the calculation and geometric error as a whole. 'Selective availability', a deliberate degradation of GPS data managed by the U.S. government, was not operating during the time period these samples were collected. Fieldwork - During the summer of 2006 DGGS conducted a 1:50,000-scale geologic field mapping project within parts of the Council airborne geophysical survey tract. As part of this project, 211 rock samples were collected for geochemical trace-element analysis, 24 rock samples were collected for whole rock (major- and minor-oxides, and petrogenetically important trace-elements) analysis, and 3 samples were collected for non-carbonate carbon analyses to determine the graphite content of various lithologies. Unweathered or minimally weathered rock samples were preferentially selected for analysis. 2006 All trace-element geochemical analyses (Table 2) collected in 2006 were performed by ALS Chemex. Rock samples were crushed with a Terminator jaw crusher with chrome steel alloy plates so that at least 70 percent of the material passed through a -10 (2 mm) mesh screen. Representative splits of 250 grams and 30 grams each were taken using a stainless steel riffle splitter. These samples were then pulverized in a chrome steel ring mill so that 85 percent of the sample passed through a -200 (75 micron) mesh screen. Most trace-element analyses were performed on the 250 gram split while gold analyses were performed on the 30 gram representative split. Geochemical samples were analyzed for gold using atomic absorption spectroscopy following a fire assay fusion (FA-AAS). For samples with greater than 10 parts per million gold, these samples were also assayed using fire assay and gravimetric finish (FA-GRAV). For samples with greater than 10,000 parts per million copper, these samples were also assayed using atomic absorption spectroscopy (AAS). Mercury was analyzed by cold-vapor atomic absorption spectroscopy and inductively coupled plasma-atomic emission spectroscopy (ICP-AES) methods following an aqua regia digestion. All other geochemical analyses were performed by the ICP-AES method after aqua regia digestion. This method of digestion is possibly incomplete for some elements and may result in lower analytical results for certain elements. The elements that may be affected by incomplete digestion as well as analytical methods, and lower and upper detection limits are tabulated in Table 5. 2006 All whole rock analyses (Table 4) were first performed by ALS Chemex. For the whole rock samples, major- and minor-element oxides were determined by X-ray fluorescence spectrometry (XRF) following a lithium tetraborate fusion. All trace elements (Nb, Rb, Sr, Y, Zr) were analyzed by wavelength dispersive X-ray fluorescence on pressed pellets. In order to check assay values reported by laboratories, DGGS inserts well- characterized rock standards throughout our sample order. Upon inspection of the analyses of DGGS whole rock standards, we observed that pressed-pellet XRF values for yttrium (Y) reported by ALS Chemex were too low. Upon our request, ALS Chemex examined their internal standards and stated that the Y values were within their accepted range of standard deviation. To examine this issue further, DGGS submitted the leftover pulps from basalt and gabbro samples to the University of Alaska Fairbanks (UAF) Advanced Instrumentation Laboratory for comparative XRF analyses. XRF analyses at UAF were conducted on pressed pellets using standard Norrish and Hutton (1969) procedures as described in Cameron (2000). Well-calibrated international standards were used as a check of the analyses. The routine was customized for inter-elemental X-ray interferences in rocks of basaltic composition. The UAF-derived XRF analyses for Y are significantly (5-25%) higher than those reported by ALS Chemex (both analyses are reported in Table 4). The UAF Y values are more comparable to the independently derived Y XRF analyses of Amato and others (2003) (ran at New Mexico State University) for basalts and gabbros of the same age in the Nome Quadrangle immediately to the west of the Council project area. We conclude that all of the UAF-derived trace-element analyses (Nb, Rb, Sr, Y, and Zr) more closely reflect the true concentration values, and hence recommend the use of the UAF values over those reported by ALS Chemex. Analytical detection limits are tabulated in Table 6. 2006 All non-carbonate carbon analyses (Table 7) were performed by ALS Chemex. Non-carbonate carbon was determined by Leco induction furnace pyrolysis following a dilute acid digestion. Analytical detection limits are noted in the title for Table 7. 2006 Table2.csv Trace-element geochemical analyses for rocks collected in the Solomon Quadrangle, Seward Peninsula, Alaska. Elements that were not analyzed for a particular sample are denoted by '-'. Alaska Division of Geological & Geophysical Surveys and ALS Chemex. Table2 Sample_Number Unique sequential sample identifier Alaska Division of Geological & Geophysical Surveys and ALS Chemex Generic example of unique sample identifier: 20YYAAA9999X: YY=last two digits of year, AAA=geologist's initials (one to three characters), 9999=unique station number, X=unique alpha character designating a sample was taken at the field station. Geologists' initials represent the following: 'JEA' = Jen Athey; 'MBW' = Melanie Werdon; 'RN' = Rainer Newberry; 'LF' = Larry Freeman; 'Z' = David Szumigala. Au Gold values acquired by analysis with fire assay-atomic absorption spectroscopy (FA-AAS) and shown in parts per million (ppm). Alaska Division of Geological & Geophysical Surveys and ALS Chemex. 0.005 10 Au(+) Gold values acquired by analysis with fire assay-gravimetric finish (FA-GRAV) and shown in parts per million (ppm). Alaska Division of Geological & Geophysical Surveys and ALS Chemex. 0.05 1000 Ag Silver values acquired by analysis with inductively coupled plasma-atomic emission spectroscopy (ICP-AES) and shown in parts per million (ppm). Alaska Division of Geological & Geophysical Surveys and ALS Chemex. 0.2 1000 Al Aluminum values acquired by analysis with inductively coupled plasma-atomic emission spectroscopy (ICP-AES) and shown in percent. Possibly incomplete digestion for this element, depending on mineralogy of sample, may result in lower analytical results. Alaska Division of Geological & Geophysical Surveys and ALS Chemex. 0.01 25 As Arsenic values acquired by analysis with inductively coupled plasma-atomic emission spectroscopy (ICP-AES) and shown in parts per million (ppm). Alaska Division of Geological & Geophysical Surveys and ALS Chemex. 2 10000 B Boron values acquired by analysis with inductively coupled plasma-atomic emission spectroscopy (ICP-AES) and shown in parts per million (ppm). Possibly incomplete digestion for this element, depending on mineralogy of sample, may result in lower analytical results. Alaska Division of Geological & Geophysical Surveys and ALS Chemex. 10 10000 Ba Barium values acquired by analysis with inductively coupled plasma-atomic emission spectroscopy (ICP-AES) and shown in parts per million (ppm). Possibly incomplete digestion for this element, depending on mineralogy of sample, may result in lower analytical results. Alaska Division of Geological & Geophysical Surveys and ALS Chemex. 10 10000 Be Beryllium values acquired by analysis with inductively coupled plasma-atomic emission spectroscopy (ICP-AES) and shown in parts per million (ppm). Possibly incomplete digestion for this element, depending on mineralogy of sample, may result in lower analytical results. Alaska Division of Geological & Geophysical Surveys and ALS Chemex. 0.5 1000 Bi Bismuth values acquired by analysis with inductively coupled plasma-atomic emission spectroscopy (ICP-AES) and shown in parts per million (ppm). Alaska Division of Geological & Geophysical Surveys and ALS Chemex. 2 10000 Ca Calcium values acquired by analysis with inductively coupled plasma-atomic emission spectroscopy (ICP-AES) and shown in percent. Possibly incomplete digestion for this element, depending on mineralogy of sample, may result in lower analytical results. Alaska Division of Geological & Geophysical Surveys and ALS Chemex. 0.01 25 Cd Cadmium values acquired by analysis with inductively coupled plasma-atomic emission spectroscopy (ICP-AES) and shown in parts per million (ppm). Alaska Division of Geological & Geophysical Surveys and ALS Chemex. 0.5 1000 Co Cobalt values acquired by analysis with inductively coupled plasma-atomic emission spectroscopy (ICP-AES) and shown in parts per million (ppm). Alaska Division of Geological & Geophysical Surveys and ALS Chemex. 1 10000 Cr Chromium values acquired by analysis with inductively coupled plasma-atomic emission spectroscopy (ICP-AES) and shown in parts per million (ppm). Possibly incomplete digestion for this element, depending on mineralogy of sample, may result in lower analytical results. Alaska Division of Geological & Geophysical Surveys and ALS Chemex. 1 10000 Cu Copper values acquired by analysis with inductively coupled plasma-atomic emission spectroscopy (ICP-AES) and shown in parts per million (ppm). Alaska Division of Geological & Geophysical Surveys and ALS Chemex. 1 10000 Cu(+) Copper values acquired by analysis with atomic absorption spectroscopy (AAS) and shown in percent. Alaska Division of Geological & Geophysical Surveys and ALS Chemex. 0.01 40 Fe Iron values acquired by analysis with inductively coupled plasma-atomic emission spectroscopy (ICP-AES) and shown in percent. Alaska Division of Geological & Geophysical Surveys and ALS Chemex. 0.01 50 Ga Gallium values acquired by analysis with inductively coupled plasma-atomic emission spectroscopy (ICP-AES) and shown in parts per million (ppm). Possibly incomplete digestion for this element, depending on mineralogy of sample, may result in lower analytical results. Alaska Division of Geological & Geophysical Surveys and ALS Chemex. 10 10000 Hg Mercury values acquired by analysis with inductively coupled plasma-atomic emission spectroscopy (ICP-AES) and shown in parts per million (ppm). Alaska Division of Geological & Geophysical Surveys and ALS Chemex. 1 10000 Hg(+) Mercury values acquired by analysis with atomic absorption spectroscopy (AAS) and shown in parts per million (ppm). Alaska Division of Geological & Geophysical Surveys and ALS Chemex. 0.01 100 K Potassium values acquired by analysis with inductively coupled plasma-atomic emission spectroscopy (ICP-AES) and shown in percent. Possibly incomplete digestion for this element, depending on mineralogy of sample, may result in lower analytical results. Alaska Division of Geological & Geophysical Surveys and ALS Chemex. 0.01 10 La Lanthanum values acquired by analysis with inductively coupled plasma-atomic emission spectroscopy (ICP-AES) and shown in parts per million (ppm). Possibly incomplete digestion for this element, depending on mineralogy of sample, may result in lower analytical results. Alaska Division of Geological & Geophysical Surveys and ALS Chemex. 10 10000 Mg Magnesium values acquired by analysis with inductively coupled plasma-atomic emission spectroscopy (ICP-AES) and shown in percent. Possibly incomplete digestion for this element, depending on mineralogy of sample, may result in lower analytical results. Alaska Division of Geological & Geophysical Surveys and ALS Chemex. 0.01 25 Mn Manganese values acquired by analysis with inductively coupled plasma-atomic emission spectroscopy (ICP-AES) and shown in parts per million (ppm). Alaska Division of Geological & Geophysical Surveys and ALS Chemex. 5 50000 Mo Molybdenum values acquired by analysis with inductively coupled plasma-atomic emission spectroscopy (ICP-AES) and shown in parts per million (ppm). Alaska Division of Geological & Geophysical Surveys and ALS Chemex. 1 10000 Na Sodium values acquired by analysis with inductively coupled plasma-atomic emission spectroscopy (ICP-AES) and shown in percent. Possibly incomplete digestion for this element, depending on mineralogy of sample, may result in lower analytical results. Alaska Division of Geological & Geophysical Surveys and ALS Chemex. 0.01 10 Ni Nickel values acquired by analysis with inductively coupled plasma-atomic emission spectroscopy (ICP-AES) and shown in parts per million (ppm). Alaska Division of Geological & Geophysical Surveys and ALS Chemex. 1 10000 P Phosphorus values acquired by analysis with inductively coupled plasma-atomic emission spectroscopy (ICP-AES) and shown in parts per million (ppm). Alaska Division of Geological & Geophysical Surveys and ALS Chemex. 10 10000 Pb Lead values acquired by analysis with inductively coupled plasma-atomic emission spectroscopy (ICP-AES) and shown in parts per million (ppm). Alaska Division of Geological & Geophysical Surveys and ALS Chemex. 2 10000 S Sulfur values acquired by analysis with inductively coupled plasma-atomic emission spectroscopy (ICP-AES) and shown in percent. Alaska Division of Geological & Geophysical Surveys and ALS Chemex. 0.01 10 Sb Antimony values acquired by analysis with inductively coupled plasma-atomic emission spectroscopy (ICP-AES) and shown in parts per million (ppm). Alaska Division of Geological & Geophysical Surveys and ALS Chemex. 2 10000 Sc Scandium values acquired by analysis with inductively coupled plasma-atomic emission spectroscopy (ICP-AES) and shown in parts per million (ppm). Possibly incomplete digestion for this element, depending on mineralogy of sample, may result in lower analytical results. Alaska Division of Geological & Geophysical Surveys and ALS Chemex. 1 10000 Sr Strontium values acquired by analysis with inductively coupled plasma-atomic emission spectroscopy (ICP-AES) and shown in parts per million (ppm). Possibly incomplete digestion for this element, depending on mineralogy of sample, may result in lower analytical results. Alaska Division of Geological & Geophysical Surveys and ALS Chemex. 1 10000 Ti Titanium values acquired by analysis with inductively coupled plasma-atomic emission spectroscopy (ICP-AES) and shown in percent. Possibly incomplete digestion for this element, depending on mineralogy of sample, may result in lower analytical results. Alaska Division of Geological & Geophysical Surveys and ALS Chemex. 0.01 10 Tl Thallium values acquired by analysis with inductively coupled plasma-atomic emission spectroscopy (ICP-AES) and shown in parts per million (ppm). Possibly incomplete digestion for this element, depending on mineralogy of sample, may result in lower analytical results. Alaska Division of Geological & Geophysical Surveys and ALS Chemex. 10 10000 U Uranium values acquired by analysis with inductively coupled plasma-atomic emission spectroscopy (ICP-AES) and shown in parts per million (ppm). Alaska Division of Geological & Geophysical Surveys and ALS Chemex. 10 10000 V Vanadium values acquired by analysis with inductively coupled plasma-atomic emission spectroscopy (ICP-AES) and shown in parts per million (ppm). Alaska Division of Geological & Geophysical Surveys and ALS Chemex. 1 10000 W Tungsten values acquired by analysis with inductively coupled plasma-atomic emission spectroscopy (ICP-AES) and shown in parts per million (ppm). Possibly incomplete digestion for this element, depending on mineralogy of sample, may result in lower analytical results. Alaska Division of Geological & Geophysical Surveys and ALS Chemex. 10 10000 Zn Zinc values acquired by analysis with inductively coupled plasma-atomic emission spectroscopy (ICP-AES) and shown in parts per million (ppm). Alaska Division of Geological & Geophysical Surveys and ALS Chemex. 2 10000 Table4.csv Major-oxide, minor-oxide, and trace-element analyses for rocks collected in the Solomon and Nome Quadrangles, Seward Peninsula, Alaska. Elements that were not analyzed for a particular sample are denoted by '-'. Alaska Division of Geological & Geophysical Surveys Table4 Sample Unique sample identifier Alaska Division of Geological & Geophysical Surveys Generic example of unique sample identifier: 20YYAAA9999X, where YY=last two digits of year, AAA=geologist's initials (one to three characters), 9999=unique station number, X=unique alpha character designating a sample was taken at the field station Al2O3 Al2O3 values acquired by analysis with lithium borate fusion and X-ray fluorescence spectrometry (LBF-XRF) and shown in percent. Alaska Division of Geological & Geophysical Surveys and ALS Chemex. 0.01 100 BaO BaO values acquired by analysis with lithium borate fusion and X-ray fluorescence spectrometry (LBF-XRF) and shown in percent. Alaska Division of Geological & Geophysical Surveys and ALS Chemex. 0.01 100 CaO CaO values acquired by analysis with lithium borate fusion and X-ray fluorescence spectrometry (LBF-XRF) and shown in percent. Alaska Division of Geological & Geophysical Surveys and ALS Chemex. 0.01 100 Cr2O3 Cr2O3 values acquired by analysis with lithium borate fusion and X-ray fluorescence spectrometry (LBF-XRF) and shown in percent. Alaska Division of Geological & Geophysical Surveys and ALS Chemex. 0.01 100 Fe2O3 Fe2O3 values acquired by analysis with lithium borate fusion and X-ray fluorescence spectrometry (LBF-XRF) and shown in percent. All iron is expressed as Fe2O3. Alaska Division of Geological & Geophysical Surveys and ALS Chemex. 0.01 100 K2O K2O values acquired by analysis with lithium borate fusion and X-ray fluorescence spectrometry (LBF-XRF) and shown in percent. Alaska Division of Geological & Geophysical Surveys and ALS Chemex. 0.01 100 MgO MgO values acquired by analysis with lithium borate fusion and X-ray fluorescence spectrometry (LBF-XRF) and shown in percent. Alaska Division of Geological & Geophysical Surveys and ALS Chemex. 0.01 100 MnO MnO values acquired by analysis with lithium borate fusion and X-ray fluorescence spectrometry (LBF-XRF) and shown in percent. Alaska Division of Geological & Geophysical Surveys and ALS Chemex. 0.01 100 Na2O Na2O values acquired by analysis with lithium borate fusion and X-ray fluorescence spectrometry (LBF-XRF) and shown in percent. Alaska Division of Geological & Geophysical Surveys and ALS Chemex. 0.01 100 P2O5 P2O5 values acquired by analysis with lithium borate fusion and X-ray fluorescence spectrometry (LBF-XRF) and shown in percent. Alaska Division of Geological & Geophysical Surveys and ALS Chemex. 0.01 100 SiO2 SiO2 values acquired by analysis with lithium borate fusion and X-ray fluorescence spectrometry (LBF-XRF) and shown in percent. Alaska Division of Geological & Geophysical Surveys and ALS Chemex. 0.01 100 SrO SrO values acquired by analysis with lithium borate fusion and X-ray fluorescence spectrometry (LBF-XRF) and shown in percent. Alaska Division of Geological & Geophysical Surveys and ALS Chemex. 0.01 100 TiO2 TiO2 values acquired by analysis with lithium borate fusion and X-ray fluorescence spectrometry (LBF-XRF) and shown in percent. Alaska Division of Geological & Geophysical Surveys and ALS Chemex. 0.01 100 LOI Loss on ignition (LOI) values shown in percent. Alaska Division of Geological & Geophysical Surveys and ALS Chemex. 0.01 100 Total Calculated total for oxides in sample. Shown in percent. Alaska Division of Geological & Geophysical Surveys and ALS Chemex. 0.01 105 Nb Niobium values acquired by X-ray fluorescence spectrometry (PP-XRF) on a pressed pellet, and shown in parts per million (ppm). Alaska Division of Geological & Geophysical Surveys and ALS Chemex. 2 10000 Rb Rubidium values acquired by X-ray fluorescence spectrometry (PP-XRF) on a pressed pellet, and shown in parts per million (ppm). Alaska Division of Geological & Geophysical Surveys and ALS Chemex. 2 10000 Sr Strontium values acquired by X-ray fluorescence spectrometry (PP-XRF) on a pressed pellet, and shown in parts per million (ppm). Alaska Division of Geological & Geophysical Surveys and ALS Chemex. 2 10000 Y Yttrium values acquired by X-ray fluorescence spectrometry (PP-XRF) on a pressed pellet, and shown in parts per million (ppm). Alaska Division of Geological & Geophysical Surveys and ALS Chemex. 2 10000 Zr Zirconium values acquired by X-ray fluorescence spectrometry (PP-XRF) on a pressed pellet, and shown in parts per million (ppm). Alaska Division of Geological & Geophysical Surveys and ALS Chemex. 2 10000 Nb* Niobium values acquired by X-ray fluorescence spectrometry (PP-XRF) on a pressed pellet, and shown in parts per million (ppm). Alaska Division of Geological & Geophysical Surveys and UAF. 1 100000 Rb* Rubidium values acquired by X-ray fluorescence spectrometry (PP-XRF) on a pressed pellet, and shown in parts per million (ppm). Alaska Division of Geological & Geophysical Surveys and UAF. 0.5 100000 Sr* Strontium values acquired by X-ray fluorescence spectrometry (PP-XRF) on a pressed pellet, and shown in parts per million (ppm). Alaska Division of Geological & Geophysical Surveys and UAF. 0.5 100000 Y* Yttrium values acquired by X-ray fluorescence spectrometry (PP-XRF) on a pressed pellet, and shown in parts per million (ppm). Alaska Division of Geological & Geophysical Surveys and UAF. 1 100000 Zr* Zirconium values acquired by X-ray fluorescence spectrometry (PP-XRF) on a pressed pellet, and shown in parts per million (ppm). Alaska Division of Geological & Geophysical Surveys and UAF. 1 100000 Table7.csv Location and description of rocks collected for non-carbonate carbon analyses in the Solomon Quadrangle, Seward Peninsula, Alaska. Carbon (non-carbonate) was analyzed by induction furnace pyrolysis following dilute acid digestion. The lower detection limit is 0.01 percent, and the upper detection limit is 50 percent carbon. Alaska Division of Geological & Geophysical Surveys Table7 Sample Number Unique sample identifier Alaska Division of Geological & Geophysical Surveys Generic example of unique sample identifier: 20YYAAA9999X, where YY=last two digits of year, AAA=geologist's initials (one to three characters), 9999=unique station number, X=unique alpha character designating a sample was taken at the field station Latitude Latitude Alaska Division of Geological & Geophysical Surveys Latitude in degrees for UTM Zone 3, NAD 27 Longitude Longitude Alaska Division of Geological & Geophysical Surveys Longitude in degrees for UTM Zone 3, NAD 27 UTM E Easting Alaska Division of Geological & Geophysical Surveys Easting for UTM Zone 3, NAD 27 UTM N Northing Alaska Division of Geological & Geophysical Surveys Northing for UTM Zone 3, NAD 27 Description Brief rock description Alaska Division of Geological & Geophysical Surveys Brief rock description Non-carbonate Carbon (percent) Non-carbonate carbon values acquired by analysis with Leco induction furnace pyrolysis following dilute acid digestion, and shown in percent. Alaska Division of Geological & Geophysical Surveys and University of Alaska Fairbanks. 0.01 50 RDF 2007-4 has eight entities containing attributes that need to be defined. Four of the tables, those involving sample locations, detection limits, and methods, are described here. The other three are data tables and are described in the "Detailed_Description" below. Items in the Sample_Number field (a unique sample identifier present in Tables 1, 2, 3, 4, and 7) are based on the following generic example: 20YYAAA9999X: YY=last two digits of year, AAA=geologist's initials (one to three characters), 9999=unique station number, X=unique alpha character designating a sample was taken at the field station. Geologists' initials represent the following: 'JEA' = Jennifer Athey; 'MBW' = Melanie Werdon; 'RN' = Rainer Newberry; 'LF' = Larry Freeman; 'Z' = David Szumigala. Table 1. Location and description of rocks collected for trace-element geochemical analyses in the Solomon Quadrangle, Seward Peninsula, Alaska. > Attribute Definition > Sample_Number Unique sample number following rules above. > Latitude Latitude for UTM Zone3, NAD 27 > Longitude Longitude for UTM Zone3, NAD 27 > UTM_E Easting for UTM Zone3, NAD 27 > UTM_N Northing for UTM Zone3, NAD 27 > Description Brief rock description Table 3. Location and description of rocks collected for major-oxide, minor-oxide, and trace-element analyses in the Solomon and Nome Quadrangles, Seward Peninsula, Alaska. > Attribute Definition > Sample_Number Unique sample number following rules above. > Latitude Latitude for UTM Zone3, NAD 27 > Longitude Longitude for UTM Zone3, NAD 27 > UTM_E Easting for UTM Zone3, NAD 27 > UTM_N Northing for UTM Zone3, NAD 27 > Description Brief rock description Table 5. Detection limits for geochemical analyses. > Attribute Definition > Element Element analyzed. Asterisk (*) on element name denotes possibly incomplete digestion dependent on mineralogy. A plus sign (+) on gold denotes the sample contained greater than 10 parts per million gold and was additionally assayed by the FA-GRAV method. A plus sign (+) on mercury denotes the sample was additionally assayed by the atomic absorption spectroscopy method. > Units parts per million (ppm), or percent > Lower detection limit Lower detection limit > Upper detection limit Upper detection limit > Analytical Methods FA-AAS = Fire Assay-Atomic Absorption Spectroscopy FA-GRAV = Fire Assay-Gravimetric Finish ICP-AES = Inductively Coupled Plasma - Atomic Emission Spectroscopy AAS = Atomic Absorption Spectroscopy Table 6. Detection limits for major-oxide, minor-oxide, and trace-element analyses. > Attribute Definition > Element Element analyzed. Also includes 'Fe2O3' (Total iron as Fe2O3), 'LOI' (Loss on ignition), and 'Total' (calculated total). > Units parts per million (ppm), or percent > Lower detection limit Lower detection limit > Upper detection limit Upper detection limit > Analytical Methods LBF-XRF = Lithium Borate Fusion and X-Ray Fluorescence Spectroscopy PP-XRF = X-Ray Fluorescence Spectroscopy on Pressed Pellet none State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys mailing and physical

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Fairbanks AK 99709-3707 USA 907-451-5020 None available 907-451-5050 dggspubs@alaska.gov 8 am to 4:30 pm, Monday through Friday, except State holidays Please view our web site (http://www.dggs.dnr.state.ak.us) for the latest information on available data. Please contact us using the e-mail address provided above when possible. Raw Data File 2007-4 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. 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. Printed publication can be purchased for $5.00 (contact information below) plus shipping if mailed. PDF 1.6 No compression applied http://www.dggs.dnr.state.ak.us/pubs/pubs?reqtype=citation&ID=15840 CSV 2007 No compression applied http://www.dggs.dnr.state.ak.us/pubs/pubs?reqtype=citation&ID=15840 CD-ROM Joliet Digital files on CD-ROM are available for $10.00 (contact information below). No fees charged for downloaded files. Order by phone (907-451-5020), e-mail (dggspubs@alaska.gov), or fax (907-451-5050). The DGGS web site (http://www.dggs.dnr.state.ak.us/) has a list of electronic data available and an order form that can be printed. Payment accepted: Cash, check, money order, VISA, or MasterCard. Digital downloads: less than 30 minutes for most files. Offline CD/DVD-ROMs: 1-2 weeks unless special arrangements are made and an express fee is paid. CSV (Comma Separated Value) files can be imported and formatted with Microsoft Excel, OpenOffice.org Calc, or most spreadsheet and text editor programs. 20080506 20080506 20091018 State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys Melanie Werdon Geologist in the DGGS Minerals Section mailing and physical address

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Fairbanks AK 99709-3707 USA 907-451-5020 None available. 907-451-5050 dggspubs@alaska.gov 8:00 am to 4:30 pm, Monday through Friday, except State holidays. Please contact us through the e-mail address given above whenever possible. FGDC Content Standards for Digital Geospatial Metadata FGDC-STD-001-1998 local time none If the user has modified the data in any way the user is obligated to describe the types of modifications the user has performed in the supporting metadata file. User specifically agrees not to imply that changes made by the user were approved by the State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys.