In the News: Zircons Show California Headwaters of Paleo-Rio Grande

August 13, 2021

https://marfapublicradio.org/blog/nature-notes/70-million-years-ago-a-river-ran-through-it-tracing-the-paleo-rio-grande-in-big-bend/

JSG Ph.D. student @CullenKortyna followed a trail of zircons to find the surprising source of the “paleo Rio Grande” — an ancient river that once flowed through @BigBendNPS before disappearing 45 million years ago