[meteorite-list] Younger Dryas (pseudo?)-tektites
From: MexicoDoug <mexicodoug_at_meteoritecentral.com>
Date: Mon, 25 Jul 2011 18:38:37 -0400 Message-ID: <8CE1932BAD27ABB-2210-365E_at_Webmail-d107.sysops.aol.com> Hi List, ? I was just curious if anyone has seen and has more information on; or better yet, can post a link to an image, of any of the enigmatic microtektite or microtektite-like things?found in the Younger-Dryas Boundary, and?referred to in West et. al., (where et. al. includes our respected listmember Ted Bunch): ? From their poster at the International Union for Quiarternary Research conference in Bern, Switzerland in progress at the moment, and to be presented tomorrow, Tuesday 26 Jul, from 14:30 to 15:50 in the Bern Expo2 poster hall: ? "Shock-melt Evidence for a Cosmic Impact with Earth during the Younger Dryas at 12.9 ka" ? "Some glassy objects from the YDB are aerodynamically formed into teardrops, dumbbells, and other shapes. These morphologies are common to microtektites and macrotektites from the Southeast Asian strewnfield, but are not apparent in micrometeorite collections." ? Does anyone have a piece of this material - I'd love to see it? ? Kindest wishes Doug (This is a resend since a lightening strike resent my email to RTF and this post in its original form didn't go through) ? ? ? Received on Mon 25 Jul 2011 06:38:37 PM PDT |
StumbleUpon del.icio.us Yahoo MyWeb |