Werdon, M. B. Gallagher, P. E. Blessington, M. J. 2012 document, digital download Raw Data File RDF 2012-2 Fairbanks, AK, USA State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys 2 p., digital download http://www.dggs.alaska.gov/pubs/id/23843 Mineral-resources personnel from the Alaska Division of Geological & Geophysical Surveys conducted reconnaissance sampling of the William Henry Bay area in the Juneau C-4 and D-4 quadrangles, August 9-13, 2011. This sampling project was part of a statewide assessment of Alaska's potential for rare-earth element mineralization. During the William Henry Bay field project 46 rock, sediment, and heavy-mineral concentrate samples were collected for geochemical analysis (geochemical, major oxide, minor oxide, trace element, and rare earth elements). Fieldwork was performed to evaluate the mineral-resource potential of a block of State land near the mouth of William Henry Creek, and to investigate reported rare-earth-element, uranium, and thorium mineral occurrences on adjacent Tongass National Forest land. This fieldwork and sampling was conducted as part of the State's Rare Earth Element and Strategic Minerals Assessment project, which is designed to evaluate Alaska's potential for these resources. The DGGS metadata standard extends the FGDC standard to include elements that are required to facilitate our internal data management. These elements, referred to as "layers," group and describe files that have intrinsic logical or topological relationships. Layers are named to correspond with the name(s) of the file(s). This dataset is described as a single layer titled: > geochemical_data: table (CSV format) listing analyses for the full suite of rare-earth elements to characterize the area's igneous and mineralized rocks 2011 2012 ground condition Complete None planned -135.2885 -135.2312 58.7621 58.7172 ISO 19115 Topic Category geoscientificInformation Alaska Division of Geological & Geophysical Surveys Geochemistry Gold Major Oxides Minor Oxides Rare Earth Elements Trace Elements Critical Minerals Strategic Minerals Alaska Division of Geological & Geophysical Surveys Alaska, State of Juneau Quadrangle Lynn Canal Juneau Mining District William Henry Bay William Henry Creek Endicott River Lance Point 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. 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. State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys mailing and physical

3354 College Road

Fairbanks AK 99709-3707 907-451-5020 907-451-5050 dggspubs@alaska.gov 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. This project is part of the State's Rare Earth Elements and Strategic Minerals Assessment CIP funded by the Alaska State Legislature and managed by the State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys. Adobe Acrobat Reader, any spreadsheet program or text editor. All geochemical, major-oxide, minor-oxide, trace-element, and rare-earth-element analyses were conducted by Actlabs. Analytical methods and detection limits are listed in attribute definitions. In addition to the internal quality-control program at Actlabs, DGGS monitored analysis quality by inserting igneous-rock and REE standards of known composition into the sample roster for every sample batch. not applicable This dataset contains all of the analysis for major-oxide, minor-oxide, trace-element, and rare-earth-element geochemistry complete at the time of publication for all samples collected in the William Henry Bay area during August 2011. Location data were downloaded from Garmin eTrex Legend HCx GPS units into a Microsoft 2007 Access database. 3 A value of estimated position error in meters was calculated by Garmin eTrex Legend HCx GPS units and recorded for each sample location. Estimated position error calculated by Garmin eTrex Legend HCx units had a minimum of 1 meter, a maximum of 9 meters, and an average of approximately 3 meters. The GPS system suffers from calculation and geometric error such as error in satellite positions, mathematical error introduced by the GPS formulas used to calculate 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 - Rock, stream sediment, and heavy-mineral pan-concentrate samples were collected from outcrops, float fields, and stream beds in the William Henry Bay area. Rock samples were chosen and collected on the basis of potential for mineralization (as identified by visual inspection). Igneous rocks as well as rocks that exhibited veining or alteration were preferentially chosen for geochemical examination. Heavy mineral concentrates were isolated by hand-panning in the field. 201108 Sample Prep - All sample preparation for analysis was performed by Actlabs. Rocks intended for whole-rock analysis by Actlabs and those with a weathering rind were trimmed at DGGS with a tile saw prior to sample preparation at the laboratory. Rock samples were crushed to minus-10 mesh (1.7mm), mechanically split by riffling, and then pulverized to 95% minus-150 mesh (105 microns). A mild steel mill was used for pulverizing to minimize contamination of samples. Stream sediment and pan concentrate samples were dried at a temperature of 60C and then sieved to minus 80 mesh (177 microns). For Code-8 REE analysis, both rock and sediment samples were further pulverized to minus-200 mesh (0.074mm) using a mild-steel mill. Cleaning sand was used after every sample preparation to prevent contamination. 201110 Sample Analysis - All samples were analyzed for major oxides, minor oxides and petrologic trace elements, as well as ore-related trace elements and rare earth elements. In addition to the internal quality-control program at Actlabs, DGGS monitored analysis quality by inserting igneous-rock and REE standards of known composition into the sample roster for every sample batch. The major oxide, minor oxide, petrographic trace-element, and ore-related trace-element analyses were conducted using inductively-coupled plasma (ICP) and inductively-coupled plasma mass spectrometry (ICP-MS) following lithium metaborate/tetraborate fusion. Mass balance was used for the major-oxide and minor-oxide analyses as an additional quality control technique, requiring elemental totals of oxides to be between 98 and 101 percent. Gold assays were performed using gravimetric analysis following fire assay (FA-GRAV) on 29.16 grams of material. Separate splits of 4 samples were reanalyzed for gold using Instrumental Neutron Activation Analysis following fire assay (FA-INAA); grams of material analyzed is noted in the .csv file. Detection limits for each of the reported oxide and elemental values obtained by the various methods are documented in the metadata file. 201110 point 0.0001 0.0001 decimal degrees North American Datum of 1927 Clarke 1866 6378206.4 294.978698214 geochemical-data rdf2012-2-geochemical-data.csv Coordinates, descriptions, and geochemical data for rock, pan concentrate, and stream sediment samples. Alaska Division of Geological & Geophysical Surveys Sample_Num Unique sample identifier Alaska Division of Geological & Geophysical Surveys 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: 'MBW' = Melanie B. Werdon. Latitude Latitude, NAD27 Alaska Division of Geological & Geophysical Surveys 58.7172 58.7621 decimal degrees Longitude Longitude, NAD27 Alaska Division of Geological & Geophysical Surveys -135.2885 -135.2312 decimal degrees Descript1 First 254 characters of brief field description of sample. Alaska Division of Geological & Geophysical Surveys Characters 1-254 of brief field description. Descript2 Extension of brief sample description for descriptions extending past 254 characters in length. Alaska Division of Geological & Geophysical Surveys Characters 255 to 508 of brief field description. Descript3 Extension of brief sample description for descriptions extending past 508 characters in length. Alaska Division of Geological & Geophysical Surveys Characters 509 to 762 of brief field description. SiO2_pct SiO2 values obtained by analysis by inductively-coupled plasma following metaborate/tetraborate fusion. Results presented in percentage. Lower detection limit 0.01%, upper detection limit 100.00%. Alaska Division of Geological & Geophysical Surveys 11.65 91.19 % TiO2_pct TiO2 values obtained by analysis by inductively-coupled plasma following metaborate/tetraborate fusion. Results presented in percentage. Lower detection limit 0.001%, upper detection limit 100.00%. Alaska Division of Geological & Geophysical Surveys. 0.007 2.595 % Al2O3_pct Al2O3 values obtained by analysis by inductively-coupled plasma following metaborate/tetraborate fusion. Results presented in percentage. Lower detection limit 0.01%, upper detection limit 100.00%. Alaska Division of Geological & Geophysical Surveys 1.49 23.33 % Fe2O3t_pct Total Fe2O3 values obtained by analysis by inductively-coupled plasma following metaborate/tetraborate fusion. Results presented in percentage. Lower detection limit 0.01%, upper detection limit 100.00%. Alaska Division of Geological & Geophysical Surveys 0.68 15.99 % MnO_pct MnO values obtained by analysis by inductively-coupled plasma following metaborate/tetraborate fusion. Results presented in percentage. Lower detection limit 0.001%, upper detection limit 100.00%. Alaska Division of Geological & Geophysical Surveys 0.035 0.362 % MgO_pct MgO values obtained by analysis by inductively-coupled plasma following metaborate/tetraborate fusion. Results presented in percentage. Lower detection limit 0.01%, upper detection limit 100.00%. Alaska Division of Geological & Geophysical Surveys. 0.11 10.32 % CaO_pct CaO values obtained by analysis by inductively-coupled plasma following metaborate/tetraborate fusion. Results presented in percentage. Lower detection limit 0.01%, upper detection limit 100.00%. Alaska Division of Geological & Geophysical Surveys. 0.2 40.33 % Na2O_pct SiO2 values obtained by analysis by inductively-coupled plasma following metaborate/tetraborate fusion. Results presented in percentage. Lower detection limit 0.01%, upper detection limit 100.00%. Alaska Division of Geological & Geophysical Surveys. 0.03 6.72 % K2O_pct K2O values obtained by analysis by inductively-coupled plasma following metaborate/tetraborate fusion. Results presented in percentage. Lower detection limit 0.01%, upper detection limit 100.00%. Alaska Division of Geological & Geophysical Surveys. 0.03 10.61 % P2O5_pct P2O5 values obtained by analysis by inductively-coupled plasma following metaborate/tetraborate fusion. Results presented in percentage. Lower detection limit 0.01%, upper detection limit 100.00%. Alaska Division of Geological & Geophysical Surveys. 0.01 1.36 % LOI_pct Percentage of sample lost as a result of heating, determined through gravimetric analysis and presented as a percentage. Alaska Division of Geological & Geophysical Surveys. 0.79 36.52 % Total_pct Mathematically derived sum of all major oxides, minor oxides, and material lost during heating (LOI). Alaska Division of Geological & Geophysical Surveys. 88.27 100.90 % Au_g_tonne Au values were obtained through gravimetric analysis following fire assay. Results presented in grams per metric ton, lower detection limit 0.03 g/tonne. Alaska Division of Geological & Geophysical Surveys and Actlabs. -1 Below detection limit of 0.03 grams/tonne Alaska Division of Geological & Geophysical Surveys and Actlabs. NULL Null value; not analyzed. Alaska Division of Geological & Geophysical Surveys and Actlabs 0.03 1.97 g/tonne Au2_ppb Au values obtained through instrumental neutron activation analysis (INAA) following fire assay. Results presented in parts per billion, lower detection limit 1 ppb. Alaska Division of Geological & Geophysical Surveys and Actlabs. -1 Below detection limit of 1 ppb. Alaska Division of Geological & Geophysical Surveys and Actlabs. NULL Null value; not analyzed. Alaska Division of Geological & Geophysical Surveys and Actlabs Mass_g Mass of sample in grams for samples analyzed for Au by INAA (Au2_ppb). Alaska Division of Geological & Geophysical Surveys and Actlabs. NULL Null value; not analyzed. Alaska Division of Geological & Geophysical Surveys and Actlabs 8.49 12.5 g Ag_ppm Ag values obtained by inductively coupled plasma - mass spectrometry (ICP-MS) following metaborate/tetraborate fusion. Results presented in parts per million, lower detection limit 0.5 ppm. Alaska Division of Geological & Geophysical Surveys and Actlabs. -1 Below detection limit of .5 ppm. Alaska Division of Geological & Geophysical Surveys and Actlabs. 0.60 3.80 ppm As_ppm As values obtained by inductively coupled plasma - mass spectrometry (ICP-MS) following metaborate/tetraborate fusion. Results presented in parts per million, lower detection limit 5 ppm. Alaska Division of Geological & Geophysical Surveys and Actlabs. -1 Below detection limit of 5 ppm. Alaska Division of Geological & Geophysical Surveys and Actlabs. 6.00 26.00 ppm Ba_ppm Ba values obtained by inductively coupled plasma (ICP) analysis following metaborate/tetraborate fusion. Results presented in parts per million, lower detection limit 3 ppm. Alaska Division of Geological & Geophysical Surveys and Actlabs. 17.00 83430.0 ppm Be_ppm Be values obtained by inductively coupled plasma (ICP) analysis following metaborate/tetraborate fusion. Results presented in parts per million, lower detection limit 1 ppm. Alaska Division of Geological & Geophysical Surveys and Actlabs. -1 Below detection limit of 1 ppm. Alaska Division of Geological & Geophysical Surveys and Actlabs. 1 5 ppm Bi_ppm Bi values obtained by inductively coupled plasma - mass spectrometry (ICP-MS) following metaborate/tetraborate fusion. Results presented in parts per million, lower detection limit 0.4 ppm. Alaska Division of Geological & Geophysical Surveys and Actlabs. -1 Below detection limit of 0.4 ppm. Alaska Division of Geological & Geophysical Surveys and Actlabs. 0.4 5.1 ppm Co_ppm Co values obtained by inductively coupled plasma - mass spectrometry (ICP-MS) following metaborate/tetraborate fusion. Results presented in parts per million, lower detection limit 1 ppm. Alaska Division of Geological & Geophysical Surveys and Actlabs. -1 Below detection limit of 1 ppm. Alaska Division of Geological & Geophysical Surveys and Actlabs. 1.00 43.00 ppm Cr_ppm Ag values obtained by inductively coupled plasma - mass spectrometry (ICP-MS) following metaborate/tetraborate fusion. Results presented in parts per million, lower detection limit 20 ppm. Alaska Division of Geological & Geophysical Surveys and Actlabs. -1 Below detection limit of 20 ppm. Alaska Division of Geological & Geophysical Surveys and Actlabs. 20.00 350.00 ppm Cs_ppm Cs values obtained by inductively coupled plasma - mass spectrometry (ICP-MS) following metaborate/tetraborate fusion. Results presented in parts per million, lower detection limit 0.5 ppm. Alaska Division of Geological & Geophysical Surveys and Actlabs. -1 Below detection limit of 0.5 ppm. Alaska Division of Geological & Geophysical Surveys and Actlabs. 0.50 2.90 ppm Cu_ppm Cu values obtained by inductively coupled plasma - mass spectrometry (ICP-MS) following metaborate/tetraborate fusion. Results presented in parts per million, lower detection limit 10 ppm. Alaska Division of Geological & Geophysical Surveys and Actlabs. -1 Below detection limit of 10 ppm. Alaska Division of Geological & Geophysical Surveys and Actlabs. 10.00 170.00 ppm Ga_ppm Ga values obtained by inductively coupled plasma - mass spectrometry (ICP-MS) following metaborate/tetraborate fusion. Results presented in parts per million, lower detection limit 1 ppm. Alaska Division of Geological & Geophysical Surveys and Actlabs. 1 35 ppm Hf_ppm Hf values obtained by inductively coupled plasma - mass spectrometry (ICP-MS) following metaborate/tetraborate fusion. Results presented in parts per million, lower detection limit 0.2 ppm. Alaska Division of Geological & Geophysical Surveys and Actlabs. -1 Below detection limit of 0.2 ppm. Alaska Division of Geological & Geophysical Surveys and Actlabs. 0.30 8.60 ppm In_ppm In values obtained by inductively coupled plasma - mass spectrometry (ICP-MS) following metaborate/tetraborate fusion. Results presented in parts per million, lower detection limit 0.2 ppm. Alaska Division of Geological & Geophysical Surveys and Actlabs. -1 Below detection limit of 0.2 ppm Alaska Division of Geological & Geophysical Surveys and Actlabs. Mo_ppm Mo values obtained by inductively coupled plasma - mass spectrometry (ICP-MS) following metaborate/tetraborate fusion. Results presented in parts per million, lower detection limit 2 ppm. Alaska Division of Geological & Geophysical Surveys and Actlabs. -1 Below detection limit of 2 ppm. Alaska Division of Geological & Geophysical Surveys and Actlabs. 2.00 11.00 ppm Nb_ppm Nb values obtained by inductively coupled plasma - mass spectrometry (ICP-MS) following metaborate/tetraborate fusion. Results presented in parts per million, lower detection limit 1 ppm. Alaska Division of Geological & Geophysical Surveys and Actlabs. -1 Below detection limit of 1 ppm. Alaska Division of Geological & Geophysical Surveys and Actlabs. 1.00 59.00 ppm Ni_ppm Ni values obtained by inductively coupled plasma - mass spectrometry (ICP-MS) following metaborate/tetraborate fusion. Results presented in parts per million, lower detection limit 20 ppm. Alaska Division of Geological & Geophysical Surveys and Actlabs. -1 Below detection limit of 20 ppm. Alaska Division of Geological & Geophysical Surveys and Actlabs. 20.00 90.00 ppm Ge_ppm Ge values obtained by inductively coupled plasma - mass spectrometry (ICP-MS) following metaborate/tetraborate fusion. Results presented in parts per million, lower detection limit 1 ppm. Alaska Division of Geological & Geophysical Surveys and Actlabs. -1 Below detection limit of 1 ppm. Alaska Division of Geological & Geophysical Surveys and Actlabs. 1.00 3.00 ppm Pb_ppm Pb values obtained by inductively coupled plasma - mass spectrometry (ICP-MS) following metaborate/tetraborate fusion. Results presented in parts per million, lower detection limit 5 ppm. Alaska Division of Geological & Geophysical Surveys and Actlabs. -1 Below detection limit of 5 ppm. Alaska Division of Geological & Geophysical Surveys and Actlabs. 5.00 279.00 ppm Rb_ppm Rb values obtained by inductively coupled plasma - mass spectrometry (ICP-MS) following metaborate/tetraborate fusion. Results presented in parts per million, lower detection limit 2 ppm. Alaska Division of Geological & Geophysical Surveys and Actlabs. -1 Below detection limit of 2 ppm. Alaska Division of Geological & Geophysical Surveys and Actlabs. 3 182 ppm Sb_ppm Ag values obtained by inductively coupled plasma - mass spectrometry (ICP-MS) following metaborate/tetraborate fusion. Results presented in parts per million, lower detection limit 0.5 ppm. Alaska Division of Geological & Geophysical Surveys and Actlabs. -1 Below detection limit of 0.5 ppm. Alaska Division of Geological & Geophysical Surveys and Actlabs. 0.9 6.5 ppm Sc_ppm Sc values obtained by inductively coupled plasma (ICP) analysis following metaborate/tetraborate fusion. Results presented in parts per million, lower detection limit 1 ppm. Alaska Division of Geological & Geophysical Surveys and Actlabs. -1 Below detection limit of 1 ppm. Alaska Division of Geological & Geophysical Surveys and Actlabs. 1 45 ppm Sn_ppm Sn values obtained by inductively coupled plasma - mass spectrometry (ICP-MS) following metaborate/tetraborate fusion. Results presented in parts per million, lower detection limit 1 ppm. Alaska Division of Geological & Geophysical Surveys and Actlabs. -1 Below detection limit of 1 ppm. Alaska Division of Geological & Geophysical Surveys and Actlabs. 1 2 ppm Sr_ppm Sr values obtained by inductively coupled plasma (ICP) analysis following metaborate/tetraborate fusion. Results presented in parts per million, lower detection limit 2 ppm. Alaska Division of Geological & Geophysical Surveys and Actlabs. 58 2583 ppm Ta_ppm Ta values obtained by inductively coupled plasma - mass spectrometry (ICP-MS) following metaborate/tetraborate fusion. Results presented in parts per million, lower detection limit 0.1 ppm. Alaska Division of Geological & Geophysical Surveys and Actlabs. -1 Below detection limit of 0.1 ppm. Alaska Division of Geological & Geophysical Surveys and Actlabs. 0.1 3.2 ppm Th_ppm Th values obtained by inductively coupled plasma - mass spectrometry (ICP-MS) following metaborate/tetraborate fusion. Results presented in parts per million, lower detection limit 0.1 ppm. Alaska Division of Geological & Geophysical Surveys and Actlabs. 0.1 47.5 ppm Tl_ppm Tl values obtained by inductively coupled plasma - mass spectrometry (ICP-MS) following metaborate/tetraborate fusion. Results presented in parts per million, lower detection limit 0.1 ppm. Alaska Division of Geological & Geophysical Surveys and Actlabs. -1 Below detection limit of 0.1 ppm. Alaska Division of Geological & Geophysical Surveys and Actlabs. 0.1 2.3 ppm U_ppm U values obtained by inductively coupled plasma - mass spectrometry (ICP-MS) following metaborate/tetraborate fusion. Results presented in parts per million, lower detection limit 0.1 ppm. Alaska Division of Geological & Geophysical Surveys and Actlabs. -1 Below detection limit of 0.1 ppm Alaska Division of Geological & Geophysical Surveys and Actlabs. 0.1 14.8 ppm V_ppm V values obtained by inductively coupled plasma (ICP) analysis following metaborate/tetraborate fusion. Results presented in parts per million, lower detection limit 5 ppm. Alaska Division of Geological & Geophysical Surveys and Actlabs. 13 410 ppm W_ppm W values obtained by inductively coupled plasma - mass spectrometry (ICP-MS) following metaborate/tetraborate fusion. Results presented in parts per million, lower detection limit 1 ppm. Alaska Division of Geological & Geophysical Surveys and Actlabs. -1 Below detection limit of 1 ppm. Alaska Division of Geological & Geophysical Surveys and Actlabs. 1 4 ppm Y_ppm Y values obtained by inductively coupled plasma (ICP) analysis following metaborate/tetraborate fusion. Results presented in parts per million, lower detection limit 2 ppm. Alaska Division of Geological & Geophysical Surveys and Actlabs. -1 Below detection limit of 2 ppm. Alaska Division of Geological & Geophysical Surveys and Actlabs. 4 37 ppm Zn_ppm Zn values obtained by inductively coupled plasma - mass spectrometry (ICP-MS) following metaborate/tetraborate fusion. Results presented in parts per million, lower detection limit 30 ppm. Alaska Division of Geological & Geophysical Surveys and Actlabs. -1 Below detection limit of 30 ppm. Alaska Division of Geological & Geophysical Surveys and Actlabs. 40 350 ppm Zr_ppm Zr values obtained by inductively coupled plasma (ICP) analysis following metaborate/tetraborate fusion. Results presented in parts per million, lower detection limit 4 ppm. Alaska Division of Geological & Geophysical Surveys and Actlabs. -1 Below detection limit of 4 ppm. Alaska Division of Geological & Geophysical Surveys and Actlabs. 11 547 ppm La_ppm La values obtained by inductively coupled plasma - mass spectrometry (ICP-MS) following metaborate/tetraborate fusion. Results presented in parts per million, lower detection limit 0.1 ppm. Alaska Division of Geological & Geophysical Surveys and Actlabs. 0.4 187 ppm Ce_ppm Ce values obtained by inductively coupled plasma - mass spectrometry (ICP-MS) following metaborate/tetraborate fusion. Results presented in parts per million, lower detection limit 0.1 ppm. Alaska Division of Geological & Geophysical Surveys and Actlabs. 0.7 318 ppm Pr_ppm Pr values obtained by inductively coupled plasma - mass spectrometry (ICP-MS) following metaborate/tetraborate fusion. Results presented in parts per million, lower detection limit 0.05 ppm. Alaska Division of Geological & Geophysical Surveys and Actlabs. 0.07 29.4 ppm Nd_ppm Nd values obtained by inductively coupled plasma - mass spectrometry (ICP-MS) following metaborate/tetraborate fusion. Results presented in parts per million, lower detection limit 0.1 ppm. Alaska Division of Geological & Geophysical Surveys and Actlabs. 0.3 86.3 ppm Sm_ppm Sm values obtained by inductively coupled plasma - mass spectrometry (ICP-MS) following metaborate/tetraborate fusion. Results presented in parts per million, lower detection limit 0.1 ppm. Alaska Division of Geological & Geophysical Surveys and Actlabs. -1 Below detection limit of 0.1 ppm. Alaska Division of Geological & Geophysical Surveys and Actlabs. 0.1 14.8 ppm Eu_ppm Eu values obtained by inductively coupled plasma - mass spectrometry (ICP-MS) following metaborate/tetraborate fusion. Results presented in parts per million, lower detection limit 0.05 ppm. Alaska Division of Geological & Geophysical Surveys and Actlabs. -1 Below detection limit of 0.05 ppm. Alaska Division of Geological & Geophysical Surveys and Actlabs. 0.1 3.95 ppm Gd_ppm Gd values obtained by inductively coupled plasma - mass spectrometry (ICP-MS) following metaborate/tetraborate fusion. Results presented in parts per million, lower detection limit 0.1 ppm. Alaska Division of Geological & Geophysical Surveys and Actlabs. -1 Below detection limit of 0.1 ppm. Alaska Division of Geological & Geophysical Surveys and Actlabs. 0.6 10.1 ppm Tb_ppm Tb values obtained by inductively coupled plasma - mass spectrometry (ICP-MS) following metaborate/tetraborate fusion. Results presented in parts per million, lower detection limit 0.1 ppm. Alaska Division of Geological & Geophysical Surveys and Actlabs. -1 Below detection limit of 0.1 ppm Alaska Division of Geological & Geophysical Surveys and Actlabs. 0.1 1.4 ppm Dy_ppm Dy values obtained by inductively coupled plasma - mass spectrometry (ICP-MS) following metaborate/tetraborate fusion. Results presented in parts per million, lower detection limit 0.1 ppm. Alaska Division of Geological & Geophysical Surveys and Actlabs. -1 Below detection limit of 0.1 ppm. Alaska Division of Geological & Geophysical Surveys and Actlabs. 0.1 7.3 ppm Ho_ppm Ho values obtained by inductively coupled plasma - mass spectrometry (ICP-MS) following metaborate/tetraborate fusion. Results presented in parts per million, lower detection limit 0.1 ppm. Alaska Division of Geological & Geophysical Surveys and Actlabs. -1 Below detection limit of 0.1 ppm. Alaska Division of Geological & Geophysical Surveys and Actlabs. 0.1 1.4 ppm Er_ppm Er values obtained by inductively coupled plasma - mass spectrometry (ICP-MS) following metaborate/tetraborate fusion. Results presented in parts per million, lower detection limit 0.1 ppm. Alaska Division of Geological & Geophysical Surveys and Actlabs. -1 Below detection limit of 0.1 ppm. Alaska Division of Geological & Geophysical Surveys and Actlabs. 0.1 3.9 ppm Tm_ppm Tm values obtained by inductively coupled plasma - mass spectrometry (ICP-MS) following metaborate/tetraborate fusion. Results presented in parts per million, lower detection limit 0.05 ppm. Alaska Division of Geological & Geophysical Surveys and Actlabs. -1 Below detection limit of 0.05 ppm. Alaska Division of Geological & Geophysical Surveys and Actlabs. 0.05 0.64 ppm Yb_ppm Yb values obtained by inductively coupled plasma - mass spectrometry (ICP-MS) following metaborate/tetraborate fusion. Results presented in parts per million, lower detection limit 0.1 ppm. Alaska Division of Geological & Geophysical Surveys and Actlabs. -1 Below detection limit of 0.1 ppm. Alaska Division of Geological & Geophysical Surveys and Actlabs. 0.2 4.5 ppm Lu_ppm Lu values obtained by inductively coupled plasma - mass spectrometry (ICP-MS) following metaborate/tetraborate fusion. Results presented in parts per million, lower detection limit 0.04 ppm. Alaska Division of Geological & Geophysical Surveys and Actlabs. -1 Below detection limit of 0.04 ppm. Alaska Division of Geological & Geophysical Surveys and Actlabs. 0.05 0.77 ppm State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys mailing and physical

3354 College Road

Fairbanks AK 99709-3707 USA 907-451-5020 907-451-5050 dggspubs@alaska.gov 8 am to 4:30 pm, Monday through Friday, except State holidays Please view our website (http://www.dggs.alaska.gov) for the latest information on available data. Please contact us using the e-mail address provided above when possible. RDF 2012-2 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. DGGS publications are available as free online downloads or you may purchase paper hard-copies or digital files on CD/DVD or other digital storage media by mail, phone, fax, or email from the DGGS Fairbanks office. To purchase this or other printed reports and maps, contact DGGS by phone (907-451-5020), e-mail (dggspubs@alaska.gov), or fax (907-451-5050). Payment accepted: Cash, check, money order, VISA, or MasterCard. Turn around time is 1-2 weeks unless special arrangements are made and an express fee is paid. Shipping charge will be the actual cost of postage and will be added to the total amount due. Contact us for the exact shipping amount. see http://www.dggs.alaska.gov/pubs/id/23843 CSV http://www.dggs.alaska.gov/pubs/id/23843 Free download 20120423 Metadata manager mailing and physical

3354 College Road

Fairbanks AK 99709-3707 USA 907-451-5020 FGDC Content Standard for Digital Geospatial Metadata FGDC-STD-001-1998 If the user has modified this metadata file in any way, the user is obligated to describe the types of modifications the user has made. User specifically agrees not to misrepresent this metadata file, 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. http://www.dggs.alaska.gov/metadata/dggs.ext dggs metadata extensions