An official website of the United States government
Here’s how you know
Official websites use .gov
A .gov website belongs to an official government organization in the
United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
Google Analytics Dashboard for Reply to comment on “Precise K–Ar, 40Ar/39Ar, Rb–Sr and U–Pb mineral ages from the 27.5 Ma Fish Canyon Tuff reference standard” by M.A. Lanphere and H. Baadsgaard
Reply to comment on “Precise K–Ar, 40Ar/39Ar, Rb–Sr and U–Pb mineral ages from the 27.5 Ma Fish Canyon Tuff reference standard” by M.A. Lanphere and H. Baadsgaard