Paleo-Hydrothermal Predecessor to Perennial Spring Activity in Thick Permafrost in the Canadian High Arctic, and Its Relation to Deep Salt Structures: Expedition Fiord, Axel Heiberg Island, Nunavut

Figure 2

Generalized geological map showing the location of the White Glacier vein array site (black star) in relation to perennial springs (black triangles) and evaporite diapirs (red); purple and light green units are predominantly sedimentary strata of Mesozoic age; igneous mafic sills and dikes are dark green. Location of apatite fission track samples in Wolf Intrusion and Colour Peak marked as filled yellow circles. Fluid inclusion Striae Hill sample marked by white ring. MARS Camp (McGill Arctic Research Station - X) was used as field base. Geology modified from Harrison and Jackson [27].