title: Penciling in details of the Hadean.
authors.affiliation: Department of Geosciences, Penn State Astrobiology Research Center, Pennsylvania State University, University Park, PA 16802 chrishouse@psu.edu.
authors.forename: Christopher H
authors.initials: CH
authors.lastname: House
mesh_terms: D002244:Carbon / Q000032:analysis*; D017640:Silicates / Q000032:analysis*; D015040:Zirconium / Q000032:analysis*
chemical_list: D017640:Silicates; D002244:Carbon; D015040:Zirconium