0277a20e-e9a2-4951-939f-3a9a595c57f3_source eng; USA utf8 dataset Simone Montayne Alaska Division of Geological & Geophysical Surveys Metadata Manager (907)451-5020 (907)451-5050 3354 College Road Fairbanks AK 99709-3707 USA dggspubs@alaska.gov 8 am to 4:30 pm, Monday through Friday, except State holidays pointOfContact 2020-04-30 ISO 19115 Geographic Information - Metadata ISO 19115:2003/Cor.1:2006(E) Hetta electromagnetic and magnetic airborne geophysical survey data compilation 2020-01-01 publication Alaska Division of Geological & Geophysical Surveys Fairbanks Alaska, United States publisher Burns, L.E. originator Graham, G.R.C. originator Barefoot, J.D. originator American Copper & Nickel Company, Inc. originator Geoterrex-Dighem originator WGM, Inc. originator http://doi.org/10.14509/30433 DIGITAL DATA Geophysical Report GPR 2020-8 16 p. The Hetta geophysical survey is located in southeast Alaska in the Ketchikan area, about 350 kilometers south of Juneau, Alaska. Frequency domain electromagnetic and magnetic data were collected with the DIGHEMV system in May 1992. A total of 1,707 line kilometers were collected covering 323.3 square kilometers. Line spacing was 200 meters (m). Data were collected approximately 30 m above the ground cover or tree canopy from a helicopter-towed sensor platform ("bird") on a 30-m-long line. The large trees and steep terrain resulted in an average ground clearance of 150 m. The Hetta survey was flown for the American Copper & Nickel Company, Inc. and provided to DGGS by the Sealaska Corporation. The data were merged and released with the 1999 Ketchikan geophysical survey maps. Map sheets and some of the other files in this data release contain data from adjacent or nearby surveys. The data, as well as additional metadata, are available from the DGGS website: http://doi.org/10.14509/30433. This airborne geophysical survey is part of a program to acquire data on Alaska's most promising mineral belts and districts. The information acquired is aimed at catalyzing new private-sector exploration, discovery, and ultimate development and production. The purpose of the survey was to map the magnetic and conductive properties of the survey area. The survey area includes the past-producing Jumbo Cu-Au-Ag mine and other Cu-Fe skarn and massive sulfide prospects. Other gold and base-metal anomalies, altered zones, favorable lithologies, and structural zones are known to exist throughout the survey area. Funding and/or data were provided by the U.S. Department of the Interior Bureau of Land Management (BLM), Ketchikan Gateway Borough, Sealaska Corporation, Alaska State Mental Health Trust Land Office, the cities of Thorne Bay and Coffman Cove, and American Copper & Nickel Company, Inc. completed Alaska Division of Geological & Geophysical Surveys Metadata Manager (907)451-5020 (907)451-5050 3354 College Road Fairbanks AK 99709-3707 USA dggspubs@alaska.gov 8 am to 4:30 pm, Monday through Friday, except State holidays pointOfContact notPlanned Aeromagnetic Aeromagnetic Data Aeromagnetic Map Aeromagnetic Survey Airborne Geophysical Survey Analytic Signal Apparent Resistivity Data Apparent Resistivity Map Apparent Resistivity Survey Conductivity Survey Electromagnetic Data Electromagnetic Survey Exploration First Vertical Derivative Frequency Domain Electromagnetic Data Geologic Geology Geophysical Map Geophysical Survey Geophysics Geophysics Search Tag Gridded Data Line Data Magnetic Data Magnetic Survey Magnetics Remote Sensing Resistivity Resistivity Survey theme Alaska Division of Geological & Geophysical Surveys Beaver Creek Billie Mountain Bully Boy Creek Cholmondeley Sound Clarence Strait Copper Harbor Copper Mountain Corbin Mine Cordova Bay Deer Bay Dell Island Dolomi Bay Dolomi Mountain Eek Lake Golden Fleece Mine Gould Island Gould Passage Halibut Creek Hetta Creek Hetta Inlet Hetta Lake Hetta Mountain Hydaburg River James Lake John Creek Jumbo Creek Jumbo Island Ketchikan Mining District Lake Josephine Lake Marge Lake Mellen Lake Williams Mount Jumbo Mud Bay Natzuhini Bay Nutkwa Falls Paul Lake Perry Creek Port Johnson Portage Bay Reynolds Creek Southeast Alaska Sulzer Passage Summit Lake Wright Creek place Alaska Division of Geological & Geophysical Surveys The State of Alaska makes no expressed or implied warranties (including warranties for merchantability and fitness) with respect to the character, functions, or capabilities of the electronic data or products or their appropriateness for any user's purposes. In no event will the State of Alaska be liable for any incidental, indirect, special, consequential, or other damages suffered by the user or any other person or entity whether from the use of the electronic services or products or any failure thereof or otherwise. In no event will the State of Alaska's liability to the Requestor or anyone else exceed the fee paid for the electronic service or product. otherRestrictions 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. otherRestrictions 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). Airborne GeophysWeb: A compilation of geophysical data from DGGS and cooperating agencies 2014-01-01 publication Alaska Division of Geological & Geophysical Surveys Fairbanks Alaska, United States publisher DGGS Staff originator http://doi.org/10.14509/27222 Digital Data Series DDS 2 crossReference Alaska merged geophysical data grids 2016-01-01 publication Alaska Division of Geological & Geophysical Surveys Fairbanks Alaska, United States publisher DGGS Staff originator http://doi.org/10.14509/29555 Digital Data Series DDS 12 3 p crossReference eng; USA geoscientificInformation -132.855817 -132.470175 55.050596 55.321683 1992-01-01 >ascii_data: ASCII format line data, other ASCII data >databases_geosoft: Geosoft format database of line data, other Geosoft format databases >documents: Project and field reports, survey background information, gridded data explanations, other supporting documentation >grids_ermapper: Geographically registered gridded data, ER Mapper ERS format >grids_geosoft: Geosoft-format binary grids, these grids can be viewed in ESRI ArcMap using a free plugin from Geosoft or using the free viewer available from Geosoft >images_registered: GeoTiff format images of all gridded data >kmz: Keyhole markup language (kml) kmz archive files of project data. Viewable in Google Earth and other compatible programs >maps_pdf_format: Printable maps in pdf format >maps_prn_format: Printable maps in HPGL/2 printer file format with extension .prn >profiles_stacked: Distance-based profiles of the digitally recorded geophysical data are generated and plotted at an appropriate scale. The profiles display electromagnetic anomalies with their respective interpretive symbols >vector_data: Line path, data contours, and survey boundary in ESRI shapefile (SHP) format, ESRI Geodatabase format, and/or AutoCAD dxf format true DGGS geophysics datasets are typically compilations of multiple digital data file formats. These formats may include: GeoTiff, ESRI shapefile, Geosoft binary grid (GRD), Microsoft Office documents, PDF, ER Mapper ERS, ASCII text files (including CSV), Geosoft ASCII grid (GXF), Geosoft database, AutoCAD DXF, Geosoft plot file (PLT), Printer files (HPP, PRN, or other), digital images (multiple formats), digital video (multiple formats), Geosoft ASCII XYZ, Geosoft ASCII files (PLY, i0, EXP), and KMZ unknown Alaska Division of Geological & Geophysical Surveys Metadata Manager (907)451-5020 (907)451-5050 3354 College Road Fairbanks AK 99709-3707 USA dggspubs@alaska.gov 8 am to 4:30 pm, Monday through Friday, except State holidays distributor Contact DGGS for current pricing Free download http://doi.org/10.14509/30433 DGGS geophysics datasets are typically compilations of multiple digital data file formats. These formats may include: GeoTiff, ESRI shapefile, Geosoft binary grid (GRD), Microsoft Office documents, PDF, ER Mapper ERS, ASCII text files (including CSV), Geosoft ASCII grid (GXF), Geosoft database, AutoCAD DXF, Geosoft plot file (PLT), Printer files (HPP, PRN, or other), digital images (multiple formats), digital video (multiple formats), Geosoft ASCII XYZ, Geosoft ASCII files (PLY, i0, EXP), and KMZ CSDGM IMPORT ERROR: No digtinfo/formcont information dataset Horizontal Positional Accuracy Report These data are positioned with post-processed differential GPS. Discussion of grid resolution and factors that may impact the overall horizontal accuracy of the gridded data is available in the documents directory of this data distribution package. Vertical Positional Accuracy Report Not applicable This data set includes files that contain processed aeromagnetic measurements, electromagnetic measurements, altimetry measurements, and locational data for the entire survey area. This data set includes files that contain processed aeromagnetic measurements, electromagnetic measurements, altimetry measurements, and locational data for the entire survey area. Data originate from one company using the same contract specifications for all data. The originating coordinate system was retained for all publication products. This lineage was generated by the FGDC CSDGM to 19139 transformation Historic data collection and processing - The airborne geophysical data for the Dolomi, Kasaan, and Hetta projects were acquired by Dighem under contract with American Copper & Nickel Company, Inc. 1992-01-01T00:00:00 Data collection, processing, and delivery - The airborne geophysical data were acquired under contract with WGM Mining and Geological Consultants, Inc. and Geoterrex-Dighem. The contractor's project report and other supporting documents are in the "documents" digital data package. They provide detailed documentation of the system specifications, data collection, processing, and delivery. 1999-01-01T00:00:00 Database development - Line data for the Ketchikan survey was delivered in several parts by the contractor. Most of the line data is in NAD 27 UTM Zone 8N, however, some data were collected in Zone 9N. These latter data were reprojected to UTM Zone 8N so grid development was possible. Original position data is noted in the database as "x_utm9" and "y_utm9." The line data were also merged into one database and then exported to an .xyz file using the Export Database option in Geosoft Oasis Montaj v9. The same was done for the electromagnetic anomaly data. 2019-01-01T00:00:00 Grid development - Grids provided by the contractor were merged with the Dolomi, Kasaan, and Hetta surveys, so each grid was regenerated to only include the data for the Ketchikan survey. Channels MAGF, RES900, RES7200, and RES56K were gridded using the Minimum Curvature option in Geosoft Oasis Montaj v9 with the following settings: grid cell size = 80 m, blanking distance = 800, cells to extend beyond data = 1. The analytic signal grid was generated by using the analytic signal function in Geosoft Oasis Montaj v9 on 100m upward continued simulated total magnetic field grid. The calculated first vertical derivative grid was created during the analytic signal process. The derivatives in the analytic signal calculation were computed using a fast Fourier transform (FFT) based 2D filter. 2019-01-01T00:00:00 RGB GeoTiff creation - RGB GeoTIFF raster files of gridded data were exported using Geosoft v9 by loading each Geosoft grid onto a map and using the map export tool. 2019-01-01T00:00:00 GeoPDF creation - Geospatial pdf file created using the Export Map function in Geosoft Oasis Montaj v9 with all maps layers visible. 2019-01-01T00:00:00 DXF conversion and geographic referencing - The contractor provided AutoCAD DXF files were converted to an ESRI Geodatabase in ArcMap v10 using the CAD to Geodatabase tool. 2019-01-01T00:00:00 Standard Boundary Polygon - The final boundary polygon was generated by loading the line data in Geosoft Oasis Montaj v9. The channel MAG was gridded using the Minimum Curvature option with the following settings: grid cell size = 25, blanking distance = 800, cells to extend beyond data = 2. The polygon file was created using Grid Outline tool with edge resolution = 1. The polygon file was exported to ESRI shapefile. 2019-01-01T00:00:00 Keyhole markup language (kml) KMZ archive creation - Data were exported from Geosoft and ESRI ArcMap to kml format files and/or KMZ archives. These files were then combined and modified in Google Earth Pro to create the final KMZ file. 2019-01-01T00:00:00 Simulated Magnetic Total Field - In this publication's older products and documentation the magnetic data products have been referred to as Total Field Magnetics on the maps and the MAGF channel in the line data and 'mag' as a filename abbreviation. The new term 'sim_magtf' has been created to rename and clarify that the data are not representative of the true total magnetic field as the IGRF values have been removed with a single average value added back to the entire dataset, resulting in the IGRF gradient being removed. The term simulated magnetic total field and the filename abbreviation 'sim_magtf' is now used to identify these magnetic data. 2019-01-01T00:00:00 Data cataloged for archival and publication - All files were renamed and placed in a standardized set of folders according to the DGGS Geophysics Data Management Manual. Where applicable and as needed data were converted to newer file formats and new files were created. Supporting documentation including but not limited to readme text files, maps, figures, survey overview report, missing data type explanations, and metadata were created. 2019-01-01T00:00:00 Source Contribution: Data collection, processing, and deliverySource Type: paper Portfolio of aeromagnetic and resistivity maps of selected areas near Ketchikan, southeastern Alaska 1999-01-01 publication Alaska Division of Geological & Geophysical Surveys Fairbanks Alaska, United States publisher Burns, L.E. originator http://doi.org/10.14509/318 Geophysical Report GPR 1999-13 18 p 1999-01-01 Source Contribution: Data collection, processing, and deliverySource Type: paper 63360 56,000 Hz coplanar resistivity of selected areas near Ketchikan, southeastern Alaska, Map A - Salt Chuck and Kasaan Peninsula, Prince of Wales Island 1999-01-01 publication Alaska Division of Geological & Geophysical Surveys Fairbanks Alaska, United States publisher Burns, L.E. originator Geoterrex-Dighem originator WGM, Inc. originator U.S. Bureau of Land Management originator http://doi.org/10.14509/310 Geophysical Report GPR 1999-11A 1 sheet, scale 1:63,360 1999-01-01 Source Contribution: Data collection, processing, and deliverySource Type: paper 63360 56,000 Hz coplanar resistivity of selected areas near Ketchikan, southeastern Alaska, Map A - Salt Chuck and Kasaan Peninsula, Prince of Wales Island 1999-01-01 publication Alaska Division of Geological & Geophysical Surveys Fairbanks Alaska, United States publisher Burns, L.E. originator Geoterrex-Dighem originator WGM, Inc. originator U.S. Bureau of Land Management originator http://doi.org/10.14509/274 Geophysical Report GPR 1999-2A 1 sheet, scale 1:63,360 1999-01-01 Source Contribution: Data collection, processing, and deliverySource Type: paper 63360 56,000 Hz coplanar resistivity of selected areas near Ketchikan, southeastern Alaska, Map A - Salt Chuck and Kasaan Peninsula, Prince of Wales Island 1999-01-01 publication Alaska Division of Geological & Geophysical Surveys Fairbanks Alaska, United States publisher Burns, L.E. originator Geoterrex-Dighem originator WGM, Inc. originator U.S. Bureau of Land Management originator http://doi.org/10.14509/294 Geophysical Report GPR 1999-7A 1 sheet, scale 1:63,360 1999-01-01 Source Contribution: Data collection, processing, and deliverySource Type: paper 63360 56,000 Hz coplanar resistivity of selected areas near Ketchikan, southeastern Alaska, Map B - north, Prince of Wales Island 1999-01-01 publication Alaska Division of Geological & Geophysical Surveys Fairbanks Alaska, United States publisher Burns, L.E. originator Geoterrex-Dighem originator WGM, Inc. originator U.S. Bureau of Land Management originator http://doi.org/10.14509/311 Geophysical Report GPR 1999-11B 1 sheet, scale 1:63,360 1999-01-01 Source Contribution: Data collection, processing, and deliverySource Type: paper 63360 56,000 Hz coplanar resistivity of selected areas near Ketchikan, southeastern Alaska, Map B - north, Prince of Wales Island 1999-01-01 publication Alaska Division of Geological & Geophysical Surveys Fairbanks Alaska, United States publisher Burns, L.E. originator Geoterrex-Dighem originator WGM, Inc. originator U.S. Bureau of Land Management originator http://doi.org/10.14509/275 Geophysical Report GPR 1999-2B 1 sheet, scale 1:63,360 1999-01-01 Source Contribution: Data collection, processing, and deliverySource Type: paper 63360 56,000 Hz coplanar resistivity of selected areas near Ketchikan, southeastern Alaska, Map B - north, Prince of Wales Island 1999-01-01 publication Alaska Division of Geological & Geophysical Surveys Fairbanks Alaska, United States publisher Burns, L.E. originator Geoterrex-Dighem originator WGM, Inc. originator U.S. Bureau of Land Management originator http://doi.org/10.14509/295 Geophysical Report GPR 1999-7B 1 sheet, scale 1:63,360 1999-01-01 Source Contribution: Data collection, processing, and deliverySource Type: paper 63360 56,000 Hz coplanar resistivity of selected areas near Ketchikan, southeastern Alaska, Map C - south, Prince of Wales Island 1999-01-01 publication Alaska Division of Geological & Geophysical Surveys Fairbanks Alaska, United States publisher Burns, L.E. originator Geoterrex-Dighem originator WGM, Inc. originator U.S. Bureau of Land Management originator http://doi.org/10.14509/312 Geophysical Report GPR 1999-11C 1 sheet, scale 1:63,360 1999-01-01 Source Contribution: Data collection, processing, and deliverySource Type: paper 63360 56,000 Hz coplanar resistivity of selected areas near Ketchikan, southeastern Alaska, Map C - south, Prince of Wales Island 1999-01-01 publication Alaska Division of Geological & Geophysical Surveys Fairbanks Alaska, United States publisher Burns, L.E. originator Geoterrex-Dighem originator WGM, Inc. originator U.S. Bureau of Land Management originator http://doi.org/10.14509/276 Geophysical Report GPR 1999-2C 1 sheet, scale 1:63,360 1999-01-01 Source Contribution: Data collection, processing, and deliverySource Type: paper 63360 56,000 Hz coplanar resistivity of selected areas near Ketchikan, southeastern Alaska, Map C - south, Prince of Wales Island 1999-01-01 publication Alaska Division of Geological & Geophysical Surveys Fairbanks Alaska, United States publisher Burns, L.E. originator Geoterrex-Dighem originator WGM, Inc. originator U.S. Bureau of Land Management originator http://doi.org/10.14509/296 Geophysical Report GPR 1999-7C 1 sheet, scale 1:63,360 1999-01-01 Source Contribution: Data collection, processing, and deliverySource Type: paper 63360 56,000 Hz coplanar resistivity of selected areas near Ketchikan, southeastern Alaska, Map D - western and eastern parts, Gravina Island 1999-01-01 publication Alaska Division of Geological & Geophysical Surveys Fairbanks Alaska, United States publisher Burns, L.E. originator Geoterrex-Dighem originator WGM, Inc. originator U.S. Bureau of Land Management originator http://doi.org/10.14509/313 Geophysical Report GPR 1999-11D 1 sheet, scale 1:63,360 1999-01-01 Source Contribution: Data collection, processing, and deliverySource Type: paper 63360 56,000 Hz coplanar resistivity of selected areas near Ketchikan, southeastern Alaska, Map D - western and eastern parts, Gravina Island 1999-01-01 publication Alaska Division of Geological & Geophysical Surveys Fairbanks Alaska, United States publisher Burns, L.E. originator Geoterrex-Dighem originator WGM, Inc. originator U.S. Bureau of Land Management originator http://doi.org/10.14509/277 Geophysical Report GPR 1999-2D 1 sheet, scale 1:63,360 1999-01-01 Source Contribution: Data collection, processing, and deliverySource Type: paper 63360 56,000 Hz coplanar resistivity of selected areas near Ketchikan, southeastern Alaska, Map D - western and eastern parts, Gravina Island 1999-01-01 publication Alaska Division of Geological & Geophysical Surveys Fairbanks Alaska, United States publisher Burns, L.E. originator Geoterrex-Dighem originator WGM, Inc. originator U.S. Bureau of Land Management originator http://doi.org/10.14509/297 Geophysical Report GPR 1999-7D 1 sheet, scale 1:63,360 1999-01-01 Source Contribution: Data collection, processing, and deliverySource Type: paper 63360 7200 Hz coplanar resistivity of selected areas near Ketchikan, southeastern Alaska, Map A - Salt Chuck and Kasaan Peninsula, Prince of Wales Island 1999-01-01 publication Alaska Division of Geological & Geophysical Surveys Fairbanks Alaska, United States publisher Burns, L.E. originator Geoterrex-Dighem originator WGM, Inc. originator U.S. Bureau of Land Management originator http://doi.org/10.14509/314 Geophysical Report GPR 1999-12A 1 sheet, scale 1:63,360 1999-01-01 Source Contribution: Data collection, processing, and deliverySource Type: paper 63360 7200 Hz coplanar resistivity of selected areas near Ketchikan, southeastern Alaska, Map A - Salt Chuck and Kasaan Peninsula, Prince of Wales Island 1999-01-01 publication Alaska Division of Geological & Geophysical Surveys Fairbanks Alaska, United States publisher Burns, L.E. originator Geoterrex-Dighem originator WGM, Inc. originator U.S. Bureau of Land Management originator http://doi.org/10.14509/278 Geophysical Report GPR 1999-3A 1 sheet, scale 1:63,360 1999-01-01 Source Contribution: Data collection, processing, and deliverySource Type: paper 63360 7200 Hz coplanar resistivity of selected areas near Ketchikan, southeastern Alaska, Map A - Salt Chuck and Kasaan Peninsula, Prince of Wales Island 1999-01-01 publication Alaska Division of Geological & Geophysical Surveys Fairbanks Alaska, United States publisher Burns, L.E. originator Geoterrex-Dighem originator WGM, Inc. originator U.S. Bureau of Land Management originator http://doi.org/10.14509/298 Geophysical Report GPR 1999-8A 1 sheet, scale 1:63,360 1999-01-01 Source Contribution: Data collection, processing, and deliverySource Type: paper 63360 7200 Hz coplanar resistivity of selected areas near Ketchikan, southeastern Alaska, Map B - north, Prince of Wales Island 1999-01-01 publication Alaska Division of Geological & Geophysical Surveys Fairbanks Alaska, United States publisher Burns, L.E. originator Geoterrex-Dighem originator WGM, Inc. originator U.S. Bureau of Land Management originator http://doi.org/10.14509/315 Geophysical Report GPR 1999-12B 1 sheet, scale 1:63,360 1999-01-01 Source Contribution: Data collection, processing, and deliverySource Type: paper 63360 7200 Hz coplanar resistivity of selected areas near Ketchikan, southeastern Alaska, Map B - north, Prince of Wales Island 1999-01-01 publication Alaska Division of Geological & Geophysical Surveys Fairbanks Alaska, United States publisher Burns, L.E. originator Geoterrex-Dighem originator WGM, Inc. originator U.S. Bureau of Land Management originator http://doi.org/10.14509/279 Geophysical Report GPR 1999-3B 1 sheet, scale 1:63,360 1999-01-01 Source Contribution: Data collection, processing, and deliverySource Type: paper 63360 7200 Hz coplanar resistivity of selected areas near Ketchikan, southeastern Alaska, Map B - north, Prince of Wales Island 1999-01-01 publication Alaska Division of Geological & Geophysical Surveys Fairbanks Alaska, United States publisher Burns, L.E. originator Geoterrex-Dighem originator WGM, Inc. originator U.S. Bureau of Land Management originator http://doi.org/10.14509/299 Geophysical Report GPR 1999-8B 1 sheet, scale 1:63,360 1999-01-01 Source Contribution: Data collection, processing, and deliverySource Type: paper 63360 7200 Hz coplanar resistivity of selected areas near Ketchikan, southeastern Alaska, Map C - south, Prince of Wales Island 1999-01-01 publication Alaska Division of Geological & Geophysical Surveys Fairbanks Alaska, United States publisher Burns, L.E. originator Geoterrex-Dighem originator WGM, Inc. originator U.S. Bureau of Land Management originator http://doi.org/10.14509/316 Geophysical Report GPR 1999-12C 1 sheet, scale 1:63,360 1999-01-01 Source Contribution: Data collection, processing, and deliverySource Type: paper 63360 7200 Hz coplanar resistivity of selected areas near Ketchikan, southeastern Alaska, Map C - south, Prince of Wales Island 1999-01-01 publication Alaska Division of Geological & Geophysical Surveys Fairbanks Alaska, United States publisher Burns, L.E. originator Geoterrex-Dighem originator WGM, Inc. originator U.S. Bureau of Land Management originator http://doi.org/10.14509/280 Geophysical Report GPR 1999-3C 1 sheet, scale 1:63,360 1999-01-01 Source Contribution: Data collection, processing, and deliverySource Type: paper 63360 7200 Hz coplanar resistivity of selected areas near Ketchikan, southeastern Alaska, Map C - south, Prince of Wales Island 1999-01-01 publication Alaska Division of Geological & Geophysical Surveys Fairbanks Alaska, United States publisher Burns, L.E. originator Geoterrex-Dighem originator WGM, Inc. originator U.S. Bureau of Land Management originator http://doi.org/10.14509/300 Geophysical Report GPR 1999-8C 1 sheet, scale 1:63,360 1999-01-01 Source Contribution: Data collection, processing, and deliverySource Type: paper 63360 7200 Hz coplanar resistivity of selected areas near Ketchikan, southeastern Alaska, Map D - western and eastern parts, Gravina Island 1999-01-01 publication Alaska Division of Geological & Geophysical Surveys Fairbanks Alaska, United States publisher Burns, L.E. originator Geoterrex-Dighem originator WGM, Inc. originator U.S. Bureau of Land Management originator http://doi.org/10.14509/317 Geophysical Report GPR 1999-12D 1 sheet, scale 1:63,360 1999-01-01 Source Contribution: Data collection, processing, and deliverySource Type: paper 63360 7200 Hz coplanar resistivity of selected areas near Ketchikan, southeastern Alaska, Map D - western and eastern parts, Gravina Island 1999-01-01 publication Alaska Division of Geological & Geophysical Surveys Fairbanks Alaska, United States publisher Burns, L.E. originator Geoterrex-Dighem originator WGM, Inc. originator U.S. Bureau of Land Management originator http://doi.org/10.14509/281 Geophysical Report GPR 1999-3D 1 sheet, scale 1:63,360 1999-01-01 Source Contribution: Data collection, processing, and deliverySource Type: paper 63360 7200 Hz coplanar resistivity of selected areas near Ketchikan, southeastern Alaska, Map D - western and eastern parts, Gravina Island 1999-01-01 publication Alaska Division of Geological & Geophysical Surveys Fairbanks Alaska, United States publisher Burns, L.E. originator Geoterrex-Dighem originator WGM, Inc. originator U.S. Bureau of Land Management originator http://doi.org/10.14509/301 Geophysical Report GPR 1999-8D 1 sheet, scale 1:63,360 1999-01-01 Source Contribution: Data collection, processing, and deliverySource Type: paper CD ROM containing gridded files and section lines of 1999 geophysical survey data for Ketchikan area, parts of the Craig, Dixon Entrance, and Ketchikan quadrangles, southeastern Alaska 1999-01-01 publication Alaska Division of Geological & Geophysical Surveys Fairbanks Alaska, United States publisher Burns, L.E. originator Geoterrex-Dighem originator WGM, Inc. originator U.S. Bureau of Land Management originator http://doi.org/10.14509/319 Geophysical Report GPR 1999-14 1 DVD 1999-01-01 Source Contribution: Data collection, processing, and deliverySource Type: paper CD-ROM containing profile and gridded data and section lines of 1999 geophysical survey data for Ketchikan area, parts of the Craig, Dixon Entrance, and Ketchikan quadrangles, southeastern Alaska 1999-01-01 publication Alaska Division of Geological & Geophysical Surveys Fairbanks Alaska, United States publisher Burns, L.E. originator Geoterrex-Dighem originator WGM, Inc. originator U.S. Bureau of Land Management originator http://doi.org/10.14509/320 Geophysical Report GPR 1999-15 1 DVD 1999-01-01 Source Contribution: Data collection, processing, and deliverySource Type: paper 63360 Color shadow magnetic map of selected areas near Ketchikan, southeastern Alaska, Map A - Salt Chuck and Kasaan Peninsula, Prince of Wales Island 1999-01-01 publication Alaska Division of Geological & Geophysical Surveys Fairbanks Alaska, United States publisher Burns, L.E. originator Geoterrex-Dighem originator WGM, Inc. originator U.S. Bureau of Land Management originator http://doi.org/10.14509/306 Geophysical Report GPR 1999-10A 1 sheet, scale 1:63,360 1999-01-01 Source Contribution: Data collection, processing, and deliverySource Type: paper 63360 Color shadow magnetic map of selected areas near Ketchikan, southeastern Alaska, Map B - north, Prince of Wales Island 1999-01-01 publication Alaska Division of Geological & Geophysical Surveys Fairbanks Alaska, United States publisher Burns, L.E. originator Geoterrex-Dighem originator WGM, Inc. originator U.S. Bureau of Land Management originator http://doi.org/10.14509/307 Geophysical Report GPR 1999-10B 1 sheet, scale 1:63,360 1999-01-01 Source Contribution: Data collection, processing, and deliverySource Type: paper 63360 Color shadow magnetic map of selected areas near Ketchikan, southeastern Alaska, Map C - south, Prince of Wales Island 1999-01-01 publication Alaska Division of Geological & Geophysical Surveys Fairbanks Alaska, United States publisher Burns, L.E. originator Geoterrex-Dighem originator WGM, Inc. originator U.S. Bureau of Land Management originator http://doi.org/10.14509/308 Geophysical Report GPR 1999-10C 1 sheet, scale 1:63,360 1999-01-01 Source Contribution: Data collection, processing, and deliverySource Type: paper 63360 Color shadow magnetic map of selected areas near Ketchikan, southeastern Alaska, Map D - western and eastern parts, Gravina Island 1999-01-01 publication Alaska Division of Geological & Geophysical Surveys Fairbanks Alaska, United States publisher Burns, L.E. originator Geoterrex-Dighem originator WGM, Inc. originator U.S. Bureau of Land Management originator http://doi.org/10.14509/309 Geophysical Report GPR 1999-10D 1 sheet, scale 1:63,360 1999-01-01 Source Contribution: Data collection, processing, and deliverySource Type: paper 63360 Flight lines of selected areas near Ketchikan, southeastern Alaska, Map A - Salt Chuck and Kasaan Peninsula, Prince of Wales Island 1999-01-01 publication Alaska Division of Geological & Geophysical Surveys Fairbanks Alaska, United States publisher Burns, L.E. originator Geoterrex-Dighem originator WGM, Inc. originator U.S. Bureau of Land Management originator http://doi.org/10.14509/282 Geophysical Report GPR 1999-4A 1 sheet, scale 1:63,360 1999-01-01 Source Contribution: Data collection, processing, and deliverySource Type: paper 63360 Flight lines of selected areas near Ketchikan, southeastern Alaska, Map B - north, Prince of Wales Island 1999-01-01 publication Alaska Division of Geological & Geophysical Surveys Fairbanks Alaska, United States publisher Burns, L.E. originator Geoterrex-Dighem originator WGM, Inc. originator U.S. Bureau of Land Management originator http://doi.org/10.14509/283 Geophysical Report GPR 1999-4B 1 sheet, scale 1:63,360 1999-01-01 Source Contribution: Data collection, processing, and deliverySource Type: paper 63360 Flight lines of selected areas near Ketchikan, southeastern Alaska, Map C - south, Prince of Wales Island 1999-01-01 publication Alaska Division of Geological & Geophysical Surveys Fairbanks Alaska, United States publisher Burns, L.E. originator Geoterrex-Dighem originator WGM, Inc. originator U.S. Bureau of Land Management originator http://doi.org/10.14509/284 Geophysical Report GPR 1999-4C 1 sheet, scale 1:63,360 1999-01-01 Source Contribution: Data collection, processing, and deliverySource Type: paper 63360 Flight lines of selected areas near Ketchikan, southeastern Alaska, Map D - western and eastern parts, Gravina Island 1999-01-01 publication Alaska Division of Geological & Geophysical Surveys Fairbanks Alaska, United States publisher Burns, L.E. originator Geoterrex-Dighem originator WGM, Inc. originator U.S. Bureau of Land Management originator http://doi.org/10.14509/285 Geophysical Report GPR 1999-4D 1 sheet, scale 1:63,360 1999-01-01 Source Contribution: Data collection, processing, and deliverySource Type: paper 31680 Total field magnetics and detailed electromagnetic anomalies of selected areas near Ketchikan, southeastern Alaska, parts of Craig B-1 and B-2 quadrangles 1999-01-01 publication Alaska Division of Geological & Geophysical Surveys Fairbanks Alaska, United States publisher Burns, L.E. originator Geoterrex-Dighem originator WGM, Inc. originator U.S. Bureau of Land Management originator http://doi.org/10.14509/324 Geophysical Report GPR 1999-16D 1 sheet, scale 1:31,680 1999-01-01 Source Contribution: Data collection, processing, and deliverySource Type: paper 31680 Total field magnetics and detailed electromagnetic anomalies of selected areas near Ketchikan, southeastern Alaska, parts of Craig B-2 and B-3 quadrangles 1999-01-01 publication Alaska Division of Geological & Geophysical Surveys Fairbanks Alaska, United States publisher Burns, L.E. originator Geoterrex-Dighem originator WGM, Inc. originator U.S. Bureau of Land Management originator http://doi.org/10.14509/323 Geophysical Report GPR 1999-16C 1 sheet, scale 1:31,680 1999-01-01 Source Contribution: Data collection, processing, and deliverySource Type: paper 31680 Total field magnetics and detailed electromagnetic anomalies of selected areas near Ketchikan, southeastern Alaska, parts of Craig B-3 and B-4 quadrangles 1999-01-01 publication Alaska Division of Geological & Geophysical Surveys Fairbanks Alaska, United States publisher Burns, L.E. originator Geoterrex-Dighem originator WGM, Inc. originator U.S. Bureau of Land Management originator http://doi.org/10.14509/322 Geophysical Report GPR 1999-16B 1 sheet, scale 1:31,680 1999-01-01 Source Contribution: Data collection, processing, and deliverySource Type: paper 31680 Total field magnetics and detailed electromagnetic anomalies of selected areas near Ketchikan, southeastern Alaska, parts of Craig C-1 and C-2 quadrangles 1999-01-01 publication Alaska Division of Geological & Geophysical Surveys Fairbanks Alaska, United States publisher Burns, L.E. originator Geoterrex-Dighem originator WGM, Inc. originator U.S. Bureau of Land Management originator http://doi.org/10.14509/321 Geophysical Report GPR 1999-16A 1 sheet, scale 1:31,680 1999-01-01 Source Contribution: Data collection, processing, and deliverySource Type: paper 31680 Total field magnetics and detailed electromagnetic anomalies of selected areas near Ketchikan, southeastern Alaska, parts of Ketchikan A-6, B-5, and B-6 quadrangles 1999-01-01 publication Alaska Division of Geological & Geophysical Surveys Fairbanks Alaska, United States publisher Burns, L.E. originator Geoterrex-Dighem originator WGM, Inc. originator U.S. Bureau of Land Management originator http://doi.org/10.14509/328 Geophysical Report GPR 1999-16H 1 sheet, scale 1:31,680 1999-01-01 Source Contribution: Data collection, processing, and deliverySource Type: paper 31680 Total field magnetics and electromagnetic anomalies of selected areas near Ketchikan, southeastern Alaska (parts of Craig A-1 and Ketchikan A-6 quadrangles) 1999-01-01 publication Alaska Division of Geological & Geophysical Surveys Fairbanks Alaska, United States publisher Burns, L.E. originator Geoterrex-Dighem originator WGM, Inc. originator U.S. Bureau of Land Management originator http://doi.org/10.14509/326 Geophysical Report GPR 1999-16F 1 sheet, scale 1:31,680 1999-01-01 Source Contribution: Data collection, processing, and deliverySource Type: paper 31680 Total field magnetics and electromagnetic anomalies of selected areas near Ketchikan, southeastern Alaska (parts of Craig A-2 and A-3 quadrangles) 1999-01-01 publication Alaska Division of Geological & Geophysical Surveys Fairbanks Alaska, United States publisher Burns, L.E. originator Geoterrex-Dighem originator WGM, Inc. originator U.S. Bureau of Land Management originator http://doi.org/10.14509/325 Geophysical Report GPR 1999-16E 1 sheet, scale 1:31,680 1999-01-01 Source Contribution: Data collection, processing, and deliverySource Type: paper 31680 Total field magnetics and electromagnetic anomalies of selected areas near Ketchikan, southeastern Alaska (parts of Craig A-2 and Dixon Entrance D-2 quadrangles) 1999-01-01 publication Alaska Division of Geological & Geophysical Surveys Fairbanks Alaska, United States publisher Burns, L.E. originator Geoterrex-Dighem originator WGM, Inc. originator U.S. Bureau of Land Management originator http://doi.org/10.14509/327 Geophysical Report GPR 1999-16G 1 sheet, scale 1:31,680 1999-01-01 Source Contribution: Data collection, processing, and deliverySource Type: paper 63360 Total field magnetics and electromagnetic anomalies of selected areas near Ketchikan, southeastern Alaska, Map A - Salt Chuck and Kasaan Peninsula, Prince of Wales Island (diazo film version) 1999-01-01 publication Alaska Division of Geological & Geophysical Surveys Fairbanks Alaska, United States publisher Burns, L.E. originator Geoterrex-Dighem originator WGM, Inc. originator U.S. Bureau of Land Management originator http://doi.org/10.14509/286 Geophysical Report GPR 1999-5A 1 sheet, scale 1:63,360 1999-01-01 Source Contribution: Data collection, processing, and deliverySource Type: paper 63360 Total field magnetics and electromagnetic anomalies of selected areas near Ketchikan, southeastern Alaska, Map A - Salt Chuck and Kasaan Peninsula, Prince of Wales Island 1999-01-01 publication Alaska Division of Geological & Geophysical Surveys Fairbanks Alaska, United States publisher Burns, L.E. originator Geoterrex-Dighem originator WGM, Inc. originator U.S. Bureau of Land Management originator http://doi.org/10.14509/290 Geophysical Report GPR 1999-6A 1 sheet, scale 1:63,360 1999-01-01 Source Contribution: Data collection, processing, and deliverySource Type: paper 63360 Total field magnetics and electromagnetic anomalies of selected areas near Ketchikan, southeastern Alaska, Map B - north, Prince of Wales Island (diazo film version) 1999-01-01 publication Alaska Division of Geological & Geophysical Surveys Fairbanks Alaska, United States publisher Burns, L.E. originator Geoterrex-Dighem originator WGM, Inc. originator U.S. Bureau of Land Management originator http://doi.org/10.14509/287 Geophysical Report GPR 1999-5B 1 sheet, scale 1:63,360 1999-01-01 Source Contribution: Data collection, processing, and deliverySource Type: paper 63360 Total field magnetics and electromagnetic anomalies of selected areas near Ketchikan, southeastern Alaska, Map B - north, Prince of Wales Island 1999-01-01 publication Alaska Division of Geological & Geophysical Surveys Fairbanks Alaska, United States publisher Burns, L.E. originator Geoterrex-Dighem originator WGM, Inc. originator U.S. Bureau of Land Management originator http://doi.org/10.14509/291 Geophysical Report GPR 1999-6B 1 sheet, scale 1:63,360 1999-01-01 Source Contribution: Data collection, processing, and deliverySource Type: paper 63360 Total field magnetics and electromagnetic anomalies of selected areas near Ketchikan, southeastern Alaska, Map C - south, Prince of Wales Island (diazo film version) 1999-01-01 publication Alaska Division of Geological & Geophysical Surveys Fairbanks Alaska, United States publisher Burns, L.E. originator Geoterrex-Dighem originator WGM, Inc. originator U.S. Bureau of Land Management originator http://doi.org/10.14509/288 Geophysical Report GPR 1999-5C 1 sheet, scale 1:63,360 1999-01-01 Source Contribution: Data collection, processing, and deliverySource Type: paper 63360 Total field magnetics and electromagnetic anomalies of selected areas near Ketchikan, southeastern Alaska, Map C - south, Prince of Wales Island 1999-01-01 publication Alaska Division of Geological & Geophysical Surveys Fairbanks Alaska, United States publisher Burns, L.E. originator Geoterrex-Dighem originator WGM, Inc. originator U.S. Bureau of Land Management originator http://doi.org/10.14509/292 Geophysical Report GPR 1999-6C 1 sheet, scale 1:63,360 1999-01-01 Source Contribution: Data collection, processing, and deliverySource Type: paper 63360 Total field magnetics and electromagnetic anomalies of selected areas near Ketchikan, southeastern Alaska, Map D - western and eastern parts, Gravina Island (diazo film version) 1999-01-01 publication Alaska Division of Geological & Geophysical Surveys Fairbanks Alaska, United States publisher Burns, L.E. originator Geoterrex-Dighem originator WGM, Inc. originator U.S. Bureau of Land Management originator http://doi.org/10.14509/289 Geophysical Report GPR 1999-5D 1 sheet, scale 1:63,360 1999-01-01 Source Contribution: Data collection, processing, and deliverySource Type: paper 63360 Total field magnetics and electromagnetic anomalies of selected areas near Ketchikan, southeastern Alaska, Map D - western and eastern parts, Gravina Island 1999-01-01 publication Alaska Division of Geological & Geophysical Surveys Fairbanks Alaska, United States publisher Burns, L.E. originator Geoterrex-Dighem originator WGM, Inc. originator U.S. Bureau of Land Management originator http://doi.org/10.14509/293 Geophysical Report GPR 1999-6D 1 sheet, scale 1:63,360 1999-01-01 Source Contribution: Data collection, processing, and deliverySource Type: paper 63360 Total field magnetics of selected areas near Ketchikan, southeastern Alaska, Map A - Salt Chuck and Kasaan Peninsula, Prince of Wales Island 1999-01-01 publication Alaska Division of Geological & Geophysical Surveys Fairbanks Alaska, United States publisher Burns, L.E. originator Geoterrex-Dighem originator WGM, Inc. originator U.S. Bureau of Land Management originator http://doi.org/10.14509/270 Geophysical Report GPR 1999-1A 1 sheet, scale 1:63,360 1999-01-01 Source Contribution: Data collection, processing, and deliverySource Type: paper 63360 Total field magnetics of selected areas near Ketchikan, southeastern Alaska, Map A - Salt Chuck and Kasaan Peninsula, Prince of Wales Island 1999-01-01 publication Alaska Division of Geological & Geophysical Surveys Fairbanks Alaska, United States publisher Burns, L.E. originator Geoterrex-Dighem originator WGM, Inc. originator U.S. Bureau of Land Management originator http://doi.org/10.14509/302 Geophysical Report GPR 1999-9A 1 sheet, scale 1:63,360 1999-01-01 Source Contribution: Data collection, processing, and deliverySource Type: paper 63360 Total field magnetics of selected areas near Ketchikan, southeastern Alaska, Map B - north, Prince of Wales Island 1999-01-01 publication Alaska Division of Geological & Geophysical Surveys Fairbanks Alaska, United States publisher Burns, L.E. originator Geoterrex-Dighem originator WGM, Inc. originator U.S. Bureau of Land Management originator http://doi.org/10.14509/271 Geophysical Report GPR 1999-1B 1 sheet, scale 1:63,360 1999-01-01 Source Contribution: Data collection, processing, and deliverySource Type: paper 63360 Total field magnetics of selected areas near Ketchikan, southeastern Alaska, Map B - north, Prince of Wales Island 1999-01-01 publication Alaska Division of Geological & Geophysical Surveys Fairbanks Alaska, United States publisher Burns, L.E. originator Geoterrex-Dighem originator WGM, Inc. originator U.S. Bureau of Land Management originator http://doi.org/10.14509/303 Geophysical Report GPR 1999-9B 1 sheet, scale 1:63,360 1999-01-01 Source Contribution: Data collection, processing, and deliverySource Type: paper 63360 Total field magnetics of selected areas near Ketchikan, southeastern Alaska, Map C - south, Prince of Wales Island 1999-01-01 publication Alaska Division of Geological & Geophysical Surveys Fairbanks Alaska, United States publisher Burns, L.E. originator Geoterrex-Dighem originator WGM, Inc. originator U.S. Bureau of Land Management originator http://doi.org/10.14509/272 Geophysical Report GPR 1999-1C 1 sheet, scale 1:63,360 1999-01-01 Source Contribution: Data collection, processing, and deliverySource Type: paper 63360 Total field magnetics of selected areas near Ketchikan, southeastern Alaska, Map C - south, Prince of Wales Island 1999-01-01 publication Alaska Division of Geological & Geophysical Surveys Fairbanks Alaska, United States publisher Burns, L.E. originator Geoterrex-Dighem originator WGM, Inc. originator U.S. Bureau of Land Management originator http://doi.org/10.14509/304 Geophysical Report GPR 1999-9C 1 sheet, scale 1:63,360 1999-01-01 Source Contribution: Data collection, processing, and deliverySource Type: paper 63360 Total field magnetics of selected areas near Ketchikan, southeastern Alaska, Map D - western and eastern parts, Gravina Island 1999-01-01 publication Alaska Division of Geological & Geophysical Surveys Fairbanks Alaska, United States publisher Burns, L.E. originator Geoterrex-Dighem originator WGM, Inc. originator U.S. Bureau of Land Management originator http://doi.org/10.14509/273 Geophysical Report GPR 1999-1D 1 sheet, scale 1:63,360 1999-01-01 Source Contribution: Data collection, processing, and deliverySource Type: paper 63360 Total field magnetics of selected areas near Ketchikan, southeastern Alaska, Map D - western and eastern parts, Gravina Island 1999-01-01 publication Alaska Division of Geological & Geophysical Surveys Fairbanks Alaska, United States publisher Burns, L.E. originator Geoterrex-Dighem originator WGM, Inc. originator U.S. Bureau of Land Management originator http://doi.org/10.14509/305 Geophysical Report GPR 1999-9D 1 sheet, scale 1:63,360 1999-01-01 Source Contribution: Data collection, processing, and deliverySource Type: paper 63360 Project report of the 1999 geophysical survey data for Ketchikan area, parts of the Craig, Dixon Entrance, and Ketchikan quadrangles, southeastern Alaska 1999-01-01 publication Alaska Division of Geological & Geophysical Surveys Fairbanks Alaska, United States publisher Stephens, Mark originator McConnell, Doug originator Rudd, Jonathan originator Geoterrex-Dighem originator http://doi.org/10.14509/329 Geophysical Report GPR 1999-17 240 p., 4 sheets, scale 1:63,360 1999-01-01 otherRestrictions Metadata Use Constraints: If the user has modified the data in any way they are obligated to describe the types of modifications they have performed in the supporting metadata file. User specifically agrees not to imply that changes they made were approved by the Alaska Department of Natural Resources or Division of Geological & Geophysical Surveys. unknown This metadata was automatically generated from the FGDC Content Standard for Digital Geospatial Metadata standard (version FGDC-STD-001-1998) using the 2019-08-12T11:11:00 version of the FGDC CSDGM to ISO 19139 transform. Simone Montayne Alaska Division of Geological & Geophysical Surveys Metadata Manager (907)451-5020 (907)451-5050 3354 College Road Fairbanks AK 99709-3707 USA dggspubs@alaska.gov 8 am to 4:30 pm, Monday through Friday, except State holidays pointOfContact