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A 300 m grid of airborne radiometric thorium-to-potassium (Th/K) ratios for the Holmes Lake survey area, New Brunswick (1985). |
| summary:
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A 300 m grid of airborne radiometric thorium-to-potassium (Th/K) ratios for the Holmes Lake survey area, New Brunswick (1985). |
| accessInformation:
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NB Dept of Natural Resources, GSB Section |
| thumbnail:
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| typeKeywords:
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["Data","Service","Image Service","ArcGIS Server"] |
| description:
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<DIV STYLE="text-align:Left;"><P STYLE="font-size:16ptmargin:0 0 0 0;"><SPAN><SPAN>A 300 m grid of airborne radiometric thorium-to-potassium (Th/K) ratios for the Holmes Lake survey area, New Brunswick (1985).</SPAN></SPAN></P><DIV><DIV><P><SPAN STYLE="font-size:16pt"><SPAN>This dataset represents the spatial distribution of thorium-to-potassium (Th/K) ratios derived from the Holmes Lake airborne radiometric survey flown in 1985 at 300 m line spacing. The Th/K ratio highlights variations between thorium and potassium abundances within the survey area and supports interpretation of lithological variations and alteration patterns. The dataset is provided in NB Stereographic double (NAD83) for consistent integration with provincial datasets.</SPAN></SPAN></P><P STYLE="font-size:16ptmargin:0 0 0 0;"><SPAN>The HolmesLake_ThK_ratio raster was produced by dividing the compiled thorium (Th) raster by the compiled potassium (K) raster at each 300 m cell. The underlying survey data were microlevled and interpolated to produce seamless 300 m grids prior to ratio calculation. The final raster was delivered as a .ers file in NB Stereographic double (NAD83).</SPAN></P><P><SPAN>The dataset is not updated regularly. Updates occur only if new reprocessing, corrections, or additional surveys become available. As of now, the compilation represents the most recent processing as of December 2025.</SPAN></P></DIV></DIV></DIV> |
| licenseInfo:
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<DIV STYLE="text-align:Left;"><DIV><DIV><P><SPAN>Sensitivity: Public/Unclassified</SPAN></P><P><SPAN>Retention: 5 Years</SPAN></P></DIV></DIV></DIV> |
| catalogPath:
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| title:
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HolmesLake_ThK_ratio |
| type:
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Image Service |
| url:
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http://s25iwvgisapp04.gnb.ca:6080/arcgis/services/Geophysics_Radiometric_Individual/HolmesLake_ThK_ratio/ImageServer |
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[] |
| culture:
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en-US |
| name:
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HolmesLake_ThK_ratio |
| guid:
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| spatialReference:
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NAD_1983_CSRS_New_Brunswick_Stereographic |