So using your super sleuthing geology skills how do you identify which granite intrusions are Mesoproterozoic and which are not?
....
Which is why major multinational mining companies spend money on radiometric dating, and indeed often keep the results confidential to give themselves a competitive advantage.
Nice point. I may have asked this question before, but how is it that you have only 96 posts? This one was a gem and I would like to see more.
Under a government which imprisons any unjustly, the true place for a just man is also in prison. Thoreau: Civil Disobedience (1846)
History will have to record that the greatest tragedy of this period of social transition was not the strident clamor of the bad people, but the appalling silence of the good people. Martin Luther King
I never considered a difference of opinion in politics, in religion, in philosophy, as cause for withdrawing from a friend. Thomas Jefferson
Worrying about the "browning of America" is not racism. -- Faith
Some of us are worried about just how much damage he will do in his last couple of weeks as president, to make it easier for the NY Times and Washington post to try to destroy Trump's presidency. -- marc9000