Evidence map›Paper›PMID 32144395›Full record

ArticleScientific reports2020

Evidence of Cosmic Impact at Abu Hureyra, Syria at the Younger Dryas Onset (~12.8 ka): High-temperature melting at >2200 °C.

Andrew M T Moore, James P Kennett, William M Napier, Ted E Bunch, James C Weaver, Malcolm LeCompte, A Victor Adedeji, Paul Hackley, Gunther Kletetschka, Robert E Hermes and 4 more

Erratum issuedAbstract read
In one paragraph

Article in Scientific reports, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

9 citing papers in PubMed.

  1. Article
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  4. Article
  5. Article
  6. Article
  7. Timing and structure of the Younger Dryas event and its underlying climate dynamics.Proceedings of the National Academy of Sciences of the United States of America · 2020
    Article
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  9. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

14 authors.

Andrew M T MooreCollege of Liberal Arts, Rochester Institute of Technology, Rochester, NY, 14623, USA.ORCID http://orcid.org/0000-0002-2734-3869
James P KennettDepartment of Earth Science and Marine Science Institute, University of California Santa Barbara, Santa Barbara, CA, 93106, USA.
William M NapierArmagh Observatory and Planetarium, College Hill, Armagh BT61 9DG, Northern Ireland, UK.
Ted E BunchGeology Division, School of Earth and Sustainability, Northern Arizona University, Flagstaff, AZ, 86011, USA.
James C WeaverWyss Institute for Biologically Inspired Engineering, Harvard University, Cambridge, MA, 02138, USA.
Malcolm LeCompteElizabeth City State University, Center of Excellence in Remote Sensing Education and Research, Elizabeth City, NC, 27909, USA.
A Victor AdedejiDepartment of Natural Sciences, Elizabeth City State University, Elizabeth City, NC, 27909, USA.
Paul HackleyU.S. Geological Survey (USGS), 12201 Sunrise Valley Drive, Reston, VA, 20192, USA.
Gunther KletetschkaInstitute of Geology, Czech Academy of Science of the Czech Republic and, Charles University, Faculty of Science, Czech Republic, CZE; and University of Alaska Fairbanks, 903 Koyukuk Drive, Fairbanks, Alaska, 99775, USA.ORCID http://orcid.org/0000-0002-0645-9037
Robert E HermesLos Alamos National Laboratory (retired), White Rock, NM, 87547, USA.
James H WittkeGeology Division, School of Earth and Sustainability, Northern Arizona University, Flagstaff, AZ, 86011, USA.
Joshua J RazinkCenter for Advanced Materials Characterization at Oregon (CAMCOR), University of Oregon, Eugene, OR, 97403, USA.
Michael W GaultoisLeverhulme Research Centre for Functional Materials Design, The Materials Innovation Factory, Department of Chemistry, University of Liverpool, Liverpool, UK.ORCID http://orcid.org/0000-0003-2172-2507
Allen WestComet Research Group, 2204 Lakewood Drive, Prescott, AZ, 86301, USA. CometResearchGroup@gmail.com.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

At Abu Hureyra (AH), Syria, the 12,800-year-old Younger Dryas boundary layer (YDB) contains peak abundances in meltglass, nanodiamonds, microspherules, and charcoal. AH meltglass comprises 1.6 wt.% of bulk sediment, and crossed polarizers indicate that the meltglass is isotropic. High YDB concentrations of iridium, platinum, nickel, and cobalt suggest mixing of melted local sediment with small quantities of meteoritic material. Approximately 40% of AH glass display carbon-infused, siliceous plant imprints that laboratory experiments show formed at a minimum of 1200°-1300 °C; however, reflectance-inferred temperatures for the encapsulated carbon were lower by up to 1000 °C. Alternately, melted grains of quartz, chromferide, and magnetite in AH glass suggest exposure to minimum temperatures of 1720 °C ranging to >2200 °C. This argues against formation of AH meltglass in thatched hut fires at 1100°-1200 °C, and low values of remanent magnetism indicate the meltglass was not created by lightning. Low meltglass water content (0.02-0.05% H

Identifiers

PMID32144395
PMCPMC7060197

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.