Top: Triassic-Jurassic boundary, Fundy basin.  The red rocks belong to the upper Blomidon Formation.  The dark brown rocks belong to the North Mountain Basalt.  The white rocks below the basalt have been altered by the heat from the basaltic lava flows.  The Triassic-Jurassic boundary occurs a few meters below the contact between the basalt and the Blomidon Formation.  Photo taken from Old Wife Point in Five Islands Provincial Park, Nova Scotia, Canada, by Roy Schlische. Bottom: Triassic-Jurassic boundary, Argana basin.  The reddish rocks belong to the upper Bigoudine Formation.  The brown rocks belong to the Argana Basalt.  The white rocks below the basalt have been altered by the heat from the basaltic lava flows.  The Triassic-Jurassic boundary occurs a few meters below the contact between the basalt and the Bigoudine Formation.  Photo by Roy Schlische.