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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 New Brunswick.<\/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 across New Brunswick at 200\u202fm resolution, derived from a compilation of NRCan airborne radiometric surveys flown at 1000\u202fm line spacing. The Th/K ratio highlights areas where thorium and potassium abundances differ, providing insights into lithological variations and alteration patterns. The dataset is provided in NB Stereographic double (NAD83) for consistent province-wide coverage.<\/SPAN><\/SPAN><\/P><P STYLE=\"font-size:16ptmargin:0 0 0 0;\"><SPAN>The Th/K ratio grid was produced by dividing the compiled thorium (Th) raster by the compiled potassium (K) raster at each 200\u202fm cell. Individual NRCan radiometric surveys were microlevled and interpolated to produce a seamless 200\u202fm grid. 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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