An absolute paleotemperature record from 10 to 6Ka inferred from fluid inclusion D/H ratios of a stalagmite from Vancouver Island, British Columbia, Canada

By using continuous helium flow during the crushing of calcite speleothem samples, we are able to recover liberated inclusion waters without isotopic fractionation. A paleotemperature record for the Jacklah Jill Cave locality, Vancouver Island, BC, was obtained from a 30-cm tall stalagmite that grew 10.3–6.3Ka ago, using δ18O values of the crushed calcite and of the inclusion water as inferred from its δD. It is found that the locality …