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 "description": "<DIV STYLE=\"text-align:Left;\"><P STYLE=\"font-size:16ptmargin:0 0 0 0;\"><SPAN><SPAN>A 200\u202fm grid of airborne radiometric thorium-to-potassium (Th/K) ratios for the Kedgwick survey area, New Brunswick (1999).<\/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 Kedgwick airborne radiometric survey flown in 1999 at 200\u202fm 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 Kedgwick_ThK_ratio raster was produced by dividing the compiled thorium (Th) raster by the compiled potassium (K) raster at each 200\u202fm cell. The underlying survey data were microlevled and interpolated to produce seamless 200\u202fm 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>",
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