Distal Impact Ejecta Layers: Spherules and More
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Abstract
Research Article| February 01, 2012 Distal Impact Ejecta Layers: Spherules and More Billy P. Glass; Billy P. Glass 1Department of Geological Sciences, University of DelawareNewark, DE 19716, USAE-mail: bglass@udel.edu Search for other works by this author on: GSW Google Scholar Bruce M. Simonson Bruce M. Simonson 2Geology Department, Oberlin CollegeOberlin, OH 44074, USAE-mail: bsimonso@oberlin.edu Search for other works by this author on: GSW Google Scholar Author and Article Information Billy P. Glass 1Department of Geological Sciences, University of DelawareNewark, DE 19716, USAE-mail: bglass@udel.edu Bruce M. Simonson 2Geology Department, Oberlin CollegeOberlin, OH 44074, USAE-mail: bsimonso@oberlin.edu Publisher: Mineralogical Society of America First Online: 09 Mar 2017 Online ISSN: 1811-5217 Print ISSN: 1811-5209 © 2012 by the Mineralogical Society of America Elements (2012) 8 (1): 43–48. https://doi.org/10.2113/gselements.8.1.43 Article history First Online: 09 Mar 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn Email Permissions Search Site Citation Billy P. Glass, Bruce M. Simonson; Distal Impact Ejecta Layers: Spherules and More. Elements 2012;; 8 (1): 43–48. doi: https://doi.org/10.2113/gselements.8.1.43 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentBy SocietyElements Search Advanced Search Abstract During the formation of large impact structures, layers of melted and crushed rock (ejecta) are deposited over large areas of the Earth's surface. Ejecta thrown farther than 2.5 crater diameters are called distal ejecta. At distances greater than ~10 crater diameters, the distal ejecta layers consist primarily of millimeter-scale glassy bodies (impact spherules) that form from melt and vapor-condensate droplets. At least 28 distal ejecta layers have been identified. Distal ejecta layers can be used to place constraints on cratering models, help fill gaps in the cratering record, and provide direct correlation between impacts and other terrestrial events. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.
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