Distal Impact Ejecta Layers: Spherules and More

Title:
Distal Impact Ejecta Layers: Spherules and More
Authors:
Glass, Billy P.; Simonson, Bruce M.
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 similar to 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.
Citation:
Glass, Billy P., and Bruce M. Simonson. 2012. "Distal Impact Ejecta Layers: Spherules and More." Elements 8(1): 43-48.
Publisher:
Mineralogical Society of America
DATE ISSUED:
2012-02-24
Department:
Geology
Type:
Article
PUBLISHED VERSION:
10.2113/gselements.8.1.43
Additional Links:
http://elements.geoscienceworld.org/cgi/doi/10.2113/gselements.8.1.43
PERMANENT LINK:
http://hdl.handle.net/11282/596028

Full metadata record

DC FieldValue Language
dc.contributor.authorGlass, Billy P.en
dc.contributor.authorSimonson, Bruce M.en
dc.date.accessioned2016-02-10T14:33:46Zen
dc.date.available2016-02-10T14:33:46Zen
dc.date.issued2012-02-24en
dc.identifier.citationGlass, Billy P., and Bruce M. Simonson. 2012. "Distal Impact Ejecta Layers: Spherules and More." Elements 8(1): 43-48.en
dc.identifier.issn1811-5209en
dc.identifier.urihttp://hdl.handle.net/11282/596028en
dc.description.abstractDuring 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 similar to 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.en
dc.language.isoen_USen
dc.publisherMineralogical Society of Americaen
dc.identifier.doi10.2113/gselements.8.1.43en
dc.relation.urlhttp://elements.geoscienceworld.org/cgi/doi/10.2113/gselements.8.1.43en
dc.subject.departmentGeologyen_US
dc.titleDistal Impact Ejecta Layers: Spherules and Moreen_US
dc.typeArticleen
dc.identifier.journalElementsen
dc.subject.keywordDistal ejectaen_US
dc.subject.keywordImpact spherulesen_US
dc.subject.keywordMicrotektitesen_US
dc.subject.keywordMicrokrystitesen_US
dc.subject.keywordImpact cratersen_US
dc.subject.keywordShock metamorphismen_US
dc.identifier.volume8en_US
dc.identifier.issue1en_US
dc.identifier.startpage43en_US
dc.rightsArchived with thanks to Elementsen
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