At the High Jarvis showing on the Jarvis Glacier a stratiform band of massive pyrite and sphalerite occurs in a sequence of well- bedded limestone, silty limestone, siltstone, and tuffaceous material of Upper Paleozoic or Upper Triassic age. The mineralized zone attains a maximum width of 2 metres and can be traced for 30 metres. It is cut off by a gabbroic intrusive to the southeast. Alteration is minimal. A chip sample over 17 metres assayed 7.64 per cent zinc, 0.28 grams per tonne gold, and 10.3 grams per tonne silver with traces of copper and lead (Assessment Report 12629).