The Earth will never catch up to the moon (let’s hope), but the number of Ordovician craters may soon takeoff. That’s because it’s easier and cheaper than ever to sniff out the shocked minerals that confirm an impact.
My work on my impact site, Brussels Hill in Wisconsin, is featured in this article, which is pretty cool! (I’m also quite liking the title of “crater hunter!”)
Brussels Hill actually occurs in Silurian-age target rocks, so the article is incorrect in including it with these Ordovician-age structures, but it’s neat to be included, nonetheless!
Emily Zawacki, Ph.D. 