GRAVITY Natural Resources Canada – Geoscience Data Repository

Canadian gravity anomaly grids (GDR WMS, offline during sweep)

2 km Bouguer, isostatic residual, free-air and first-vertical-derivative gravity grids.

Dense basement blocks and mafic intrusions (Ni-Cu-PGE), evaporite thickness lows, and arch geometry for helium traps.

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COMMODITIES IT DISCRIMINATES (5)

What this layer helps you find

Base metals & Ni-Cu-PGE (Shield and carbonate MVT)HeliumPotashSalt (halite) & brine cavernsDiamonds

Prospectivity envelopes citing this dataset (5)

  • Peace River Arch / Worsley helium fairwayHelium · Basement-sourced helium trapped in Devonian / Cambrian reservoirs on a basement highProfile ↗
  • Sweetgrass Arch / Steveville–KnappenHelium · Helium in Cambrian–Devonian traps over a basement high (Montana–Saskatchewan analogue)Profile ↗
  • Prairie Evaporite potash edge (east-central Alberta)Potash · Sylvinite / carnallite beds at the western edge of the Saskatchewan potash basinProfile ↗
  • Exposed Canadian Shield (Andrew Lake–Fort Chipewyan)Base metals & Ni-Cu-PGE (Shield and carbonate MVT) · Orogenic / magmatic Ni-Cu-PGE, VMS and pegmatite-hosted targets in the Taltson magmatic zoneProfile ↗
  • Devonian carbonate MVT Zn-Pb (Pine Point trend extension)Base metals & Ni-Cu-PGE (Shield and carbonate MVT) · Mississippi Valley-type Zn-Pb in dolomitized Presqu'ile barrier (Pine Point analogue)Profile ↗

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