1. Trace Metal Biosignatures Open Access Author: Cameron, Vyllinniskii Title: Trace Metal Biosignatures Graduate Program: Geosciences Keywords: Trace metalsBiosignaturesNickel Stable IsotopesHyperthermophilesMethanogenTungsten File: Download VCThesisFinal.pdf Committee Members: Christopher Howard House, Committee Chair/Co-ChairSusan Louise Brantley, Committee MemberLee Kump, Committee MemberCaryl Ann Gronwall, Committee Member