Table A1 Summary of literature age data for NA Tektites and the Chesapeake Bay impact structure obtained using different analytical techniques: biostratigraphy, fission-track, 40Ar/39Ar total fusion and step heating, K/Ar and U/Pb. Where possible, sample ages have been corrected using the Steiger and Jäger (1977) decay constants and consistent monitor ages (Schwarz and Trieloff, 2007).
Table A2 Chemical composition for a profile along a bediasite obtained by electron microprobe (in wt%).
Table A3 Chemical composition for a profile along a georgiaite obtained by electron microprobe (in wt%).
Appendix tables A4-A20 display measured argon isotopes corrected for mass discrimination, sensitivity, system blanks, decay and relative neutron doses. All isotopes are also corrected for interfering isotopes produced on K and Ca during irradiation.