14.04.2014 Views

The three main methods used to date sedimentary rocks ...

The three main methods used to date sedimentary rocks ...

The three main methods used to date sedimentary rocks ...

SHOW MORE
SHOW LESS

You also want an ePaper? Increase the reach of your titles

YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.

An event marker<br />

A rare example of a globally-reliable event marker: <strong>The</strong> Cretaceous-Tertiary<br />

boundary layer clay, marking a meteorite impact. Frenchman Valley, Saskatchewan

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!