This is a Non-Federal dataset covered by different Terms of Use than Data.gov.

Linedata and gridded data for the aeromagnetic survey of the Holitna basin area, western Alaska; Parts of the Lime Hills and Sleetmute quadrangles

Metadata Updated: November 10, 2020

This DVD-ROM publication, GPR 2008-4, contains linedata, gridded data, vector data, and browse graphics produced from a fixed-wing aeromagnetic survey conducted in 1997 of the Holitna Basin area, western Alaska. Aeromagnetic data were acquired for about 3234 sq miles for the Alaska Division of Geological & Geophysical Surveys (DGGS) during this fixed-wing survey.

Access & Use Information

Non-Federal: This dataset is covered by different Terms of Use than Data.gov. License: No license information was provided.

Downloads & Resources

Dates

Metadata Date July 23, 2008
Metadata Created Date November 10, 2020
Metadata Updated Date November 10, 2020
Reference Date(s) January 1, 2008 (publication)
Frequency Of Update notPlanned

Metadata Source

Harvested from Alaska Division of Geological and Geophysical Surveys

Additional Metadata

Resource Type Dataset
Metadata Date July 23, 2008
Metadata Created Date November 10, 2020
Metadata Updated Date November 10, 2020
Reference Date(s) January 1, 2008 (publication)
Responsible Party State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys (DGGS) (Point of Contact)
Contact Email
Guid
Access Constraints Use Constraints: Any hard copies or published datasets utilizing these datasets shall clearly indicate their source. If the user has modified the data in any way the user is obligated to describe the types of modifications the user has made. User specifically agrees not to misrepresent these datasets, nor to imply that changes made by the user were approved by the State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys (DGGS)., Access Constraints: This report, map and/or dataset are available directly from the State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys (see contact information below).
Bbox East Long -155.16
Bbox North Lat 62.06
Bbox South Lat 60.95
Bbox West Long -157.47
Coupled Resource
Frequency Of Update notPlanned
Graphic Preview Description The browse graphic file, 'GPR2008-4BrowseGraphic.pdf' contains images of all the geophysical grids contained in this publication and a shaded-relief image of the total magnetic field. Included figures are Figure 1a: Total field magnetic map of the Holitna survey map area; Figure 1b: Total field magnetic map of all the Holitna survey data; Figure 2a: Horizontal gradient (dx) of the Holitna magnetic grid; Figure 2b: Horizontal gradient (dy) of the Holitna magnetic grid; Figure 2c: First vertical derivative (dz) of the Holitna magnetic grid; Figure 3: Color shadow map of the total field magnetic data; Figure 4a: Depth interpretation using Euler deconvolution with dike model, log-linear color method; Figure 4b: Depth interpretation using Euler deconvolution with step model, log-linear color method; Figure 4c: Depth to basement model using Euler deconvolution with dike model, log-linear color method; Figure 4d: Depth to basement model using Euler deconvolution with dike model, normal distribution color method; Figure 4e: Depth to basement model using Euler deconvolution with dike model, histogram equalization color method; Figure 5a: Analytic signal of the total magnetic field computed using Fast Fourier Transforms (FFT) for the z-derivative; log-linear color method; Figure 5b: Analytic signal of the total magnetic field computed using Fast Fourier Transforms (FFT) for the z-derivative; normal distribution color method; Figure 5c: Analytic signal of the total magnetic field computed using Fast Fourier Transforms (FFT) for the z-derivative; histogram equalization color method; Figure 5c: Analytic signal of the total magnetic field computed using Fast Fourier Transforms (FFT) for the z-derivative; histogram equalization color method; and Figure 5d: Analytic signal of the total magnetic field computed using convolution for the z-derivative; histogram equalization color method.
Graphic Preview File GPR2008-4BrowseGraphic.pdf
Graphic Preview Type PDF
Licence 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.
Metadata Language eng; USA
Metadata Type geospatial
Progress completed
Spatial Data Service Type
Spatial Reference System
Spatial Harvester True
Temporal Extent Begin 1997-07-01
Temporal Extent End 2008-07-01

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