[Rockhounds] An ancient impact on Earth led to a cascade of cratering

[pmodreski]

Yes, I had just read this somewhere too. And there had been a news story about it back at the time of the total eclipse, where I think, several scientists, including I believe, astronauts Harrison Schmitt and Jim Reilly (then Director of USGS), visited the crater site--and watched the eclipse from there, I think.Sent from my Verizon, Samsung Galaxy smartphone
-------- Original message --------From: "(Alan Silverstein)" <ajs at silgro.com> Date: 2/22/22  1:56 PM  (GMT-07:00) To: rockhounds at rockhounds.drizzle.com Subject: [Rockhounds] An ancient impact on Earth led to a cascade of
  cratering https://www.sciencenews.org/article/crater-ancient-asteroid-meteorite-impact-earth> Blocks of material blasted from one large crater created a wealth of> smaller craters>> A bevy of craters formed by material blasted from the carving of> another, larger crater -- a process dubbed secondary cratering -- have> finally been spotted on Earth.  Several groupings of craters in> southeastern Wyoming, including dozens of pockmarks in all, have the> hallmarks of secondary cratering, researchers report February 11 in> GSA Bulletin...Hopefully that article's not paywalled; I'm a subscriber, but thispopped in my general newsfeed.A few years ago I read or saw something about one crater being suggested-- in a place hard to access, perhaps on a big private ranch if I recallright.  Apparently the same researchers are hot on the trail.  I'mhoping they find the main crater sooner than later.  And I would like tovisit one or more of the secondary craters sometime too.Cheers,Alan Silverstein_______________________________________________Rockhounds mailing listSubscription Services:  http://rockhounds.drizzle.com/mailman/listinfo/rockhounds_rockhounds.drizzle.comList Usage Policy: http://Tomaszewski.net/Kreigh/Rockhounds/Rockhounds.shtml