Sulfur geochemistry in the HSDP2 Drilling, Hawaii: Effects of lava degassing and sea-water interaction

摘要

The study investigates the geochemistry of sulfur in the sequence of volcanic rocks recovered by a 3098 m deep drilling executed on the flank of the Mauna Kea volcano. Though mineralogic investigations indicate the presence of sulfur beating minerals which may have crystallized directly from the plume melt,contents and isotopic composition of sulfur suggest that the original composition of the melt was altered due to degassing and interaction with seawater derived fluids.