Very high-temperature impact melt products as evidence for cosmic airbursts and impacts 12,900 years ago
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F12%3A10133015" target="_blank" >RIV/00216208:11310/12:10133015 - isvavai.cz</a>
Alternative codes found
RIV/67985831:_____/12:00378869
Result on the web
<a href="http://dx.doi.org/10.1073/pnas.1204453109" target="_blank" >http://dx.doi.org/10.1073/pnas.1204453109</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1073/pnas.1204453109" target="_blank" >10.1073/pnas.1204453109</a>
Alternative languages
Result language
angličtina
Original language name
Very high-temperature impact melt products as evidence for cosmic airbursts and impacts 12,900 years ago
Original language description
It has been proposed that fragments of an asteroid or comet impacted Earth, deposited silica-and iron-rich microspherules and other proxies across several continents, and triggered the Younger Dryas cooling episode 12,900 years ago. Although many independent groups have confirmed the impact evidence, the hypothesis remains controversial because some groups have failed to do so. We examined sediment sequences from 18 dated Younger Dryas boundary (YDB) sites across three continents (North America, Europe,and Asia), spanning 12,000 km around nearly one-third of the planet. All sites display abundant microspherules in the YDB with none or few above and below. In addition, three sites (Abu Hureyra, Syria; Melrose, Pennsylvania; and Blackville, South Carolina) display vesicular, high-temperature, siliceous scoria-like objects, or SLOs, that match the spherules geochemically. We compared YDB objects with melt products from a known cosmic impact (Meteor Crater, Arizona) and from the 1945 Trin
Czech name
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Czech description
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Classification
Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
DC - Seismology, volcanology and Earth structure
OECD FORD branch
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Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2012
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Proceedings of the National Academy of Sciences of the United States of America
ISSN
0027-8424
e-ISSN
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Volume of the periodical
109
Issue of the periodical within the volume
28
Country of publishing house
US - UNITED STATES
Number of pages
10
Pages from-to
"E1903"-"E1912"
UT code for WoS article
000306642100005
EID of the result in the Scopus database
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