nanodiamond-rich layer across three continents consistent with major cosmic impact at 12, 800 Cal BP, Charles R. Kinzie, et al, Journal of Geology, free full text 68 pages CosmicTusk.com George Howard: Rich Murray 2014.09.06
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nanodiamond-rich layer across three continents consistent with major cosmic impact at 12, 800 Cal BP, Charles R. Kinzie, et al, Journal of Geology, free full text 68 pages CosmicTusk.com George Howard: Rich Murray 2014.09.06
 
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nanodiamond-rich layer across three continents consistent with major cosmic impact at 12,800 Cal BP, Charles R. Kinzie, et al, Journal of Geology, free full text 68 pages CosmicTusk.com George Howard: Rich Murray 2014.09.06 CosmicTusk.com August 31st, 2014 Those darn nanodiamonds again: More hard evidence confirms Ice Age castastrophe photo of Newtonville, NJ YDB site free full text 68 pages Nanodiamond-Rich Layer across Three Continents Consistent with Major Cosmic Impact at 12,800 Cal BP Charles R. Kinzie, et al The Journal of Geology, 2014, volume 122, p. 000–000 c 2014 by The University of Chicago. Manuscript received May 19, 2013; accepted April 18, 2014; electronically published August 26, 2014 Allen West [hidden email] Published by: George Howard on Aug 31, 2014 ABSTRACT A major cosmic-impact event has been proposed at the onset of the Younger Dryas (YD) cooling episode at ≈12,800 +- 150 years before present, forming the YD Boundary (YDB) layer, distributed over 150 million km2 on four continents. In 24 dated stratigraphic sections in 10 countries of the Northern Hemisphere, the YDB layer contains a clearly defined abundance peak in nanodiamonds (NDs), a major cosmic-impact proxy. Observed ND polytypes include cubic diamonds, lonsdaleite-like crystals, and diamond-like carbon nanoparticles, called n-diamond and i-carbon. The ND abundances in bulk YDB sediments ranged up to ≈500 ppb (mean: 200 ppb) and that in carbon spherules up to ≈3700 ppb (mean: ≈750 ppb); 138 of 205 sediment samples (67%) contained no detectable NDs. Isotopic evidence indicates that YDB NDs were produced from terrestrial carbon, as with other impact diamonds, and were not derived from the impactor itself. The YDB layer is also marked by abundance peaks in other impact-related proxies, including cosmic-impact spherules, carbon spherules (some containing NDs), iridium, osmium, platinum, charcoal, aciniform carbon (soot), and high-temperature melt-glass. This contribution reviews the debate about the presence, abundance, and origin of the concentration peak in YDB NDs. We describe an updated protocol for the extraction and concentration of NDs from sediment, carbon spherules, and ice, and we describe the basis for identification and classification of YDB ND polytypes, using nine analytical approaches. The large body of evidence now obtained about YDB NDs is strongly consistent with an origin by cosmic impact at ≈12,800 cal BP and is inconsistent with formation of YDB NDs by natural terrestrial processes, including wildfires, anthropogenesis, and/or influx of cosmic dust. Joanne Ballard: Amazing pics from field work in European coversands University of Tennessee Geography Department The Tusk is in touch with Ms. Ballard and asked for some narrative which I will post here when received. But I can’t resist uploading these beautiful and suggestive slides for your perusal in the meantime. Joanne Ballard photo slides 48 pages Published by George Howard Ballard talk on the Younger Dryas Boundary. More info: Published by: George Howard on Aug 12, 2014 Copyright:Traditional Copyright: All rights reserved Availability: Read on Scribd mobile: iPhone, iPad and Android. download as PDF, TXT or read online from Scribd Published by George Howard The Younger Dryas impact hypothesis: a cosmic catastrophe 2014 Journal of Quaternary Science Vance T. Holliday, et al. ABSTRACT: In this paper we review the evidence for the Younger Dryas impact hypothesis (YDIH), which proposes that at ~ 12.9k cal a BP North America, South America, Europe and the Middle East were subjected to some sort of extraterrestrial event. This purported event is proposed as a catastrophic process responsible for: terminal Pleistocene environmental changes (onset of YD cooling, continent-scale wildfires); extinction of late Pleistocene mammals; and demise of the Clovis ‘culture’ in North America, the earliest well-documented, continent-scale settlement of the region. The basic physics in the YDIH is not in accord with the physics of impacts nor the basic laws of physics. No YD boundary (YDB) crater, craters or other direct indicators of an impact are known. Age control is weak to non- existent at 26 of the 29 localities claimed to have evidence for the YDIH. Attempts to reproduce the results of physical and geochemical analyses used to support the YDIH have failed or show that many indicators are not unique to an impact nor to ~ 12.9k cal a BP. The depositional environments of purported indicators at most sites tend to concentrate particulate matter and probably created many ‘YDB zones’. Geomorphic, stratigraphic and fire records show no evidence of any sort of catastrophic changes in the environment at or immediately following the YDB. Late Pleistocene extinctions varied in time and across space. Archeological data provide no indication of population decline, demographic collapse or major adaptive shifts at or just after ~ 12.9 ka. The data and the hypotheses generated by YDIH proponents are contradictory, inconsistent and incoherent. More info: Published by: George Howard on Aug 31, 2014 Copyright:Traditional Copyright: All rights reserved 12.8 Ka impact confirmed by details from MUM7B site in Northern Andes, William C. Mahaney et al: Rich Murray 2013.08.14 Evidence for deposition of 10 million tonnes of impact spherules across four continents 12,800 y ago, James H. Wittke et al, PNAS: Rich Murray 2013.05.22 http://rmforall.blogspot.com/2013/05/evidence-for-deposition-of-10-million.html Dennis Cox blog, plain text, with images of samples of magnetic black glaze on melt rocks from 13 Ka ice comet fragment extreme plasma storm geoablation in Fresno, California: Rich Murray 2010.07.02 pertinent features near Campbell Mountain, studied by Dennis Cox, by his house in Fresno, CA: Rich Murray 2011.06.27 19 images of Fresno mountains and rock samples ?cid=5d6b9f6c30c6fe9f&sc=photos&id=5D6B9F6C30C6FE9F%21\1348 photo of typical air burst geoablation glaze on hard bedrock at top of Mount Helix park, E San Diego: Rich Murray 2012.03.15 10 m broken rock hill with black glazes, W of Rancho Alegre Road, S of Coyote Trail, W of Hwy 14, S of Santa Fe, New Mexico, tour of 50 photos 1 MB size each via DropBox: Rich Murray 2011.07.28 2011.08.03 photos 3-5 of 50 Do you know anyone who lives in Los Alamos, NM -- they can go to the White Rock overlook park platform, and collect plenty of surface melted pieces of black lava rock, on the W edge of the Rio Grande canyon -- the east side has extensive places with surface melted black lava rock all over the large Caja del Rio lava plateau... 35.826624 -106.179553 1.900 km elevation White Rock Overlook Park, NM A: surface melted black lava rocks, a short walk E of CR 24, W of Santa Fe 35.703110 -106.104870 1.951 km elevation I haven't had any success getting experts to check out these sites since fall 2008... The melted surfaces are sometimes 4 cm thick..., and often on vertical walls... For about 100 km or more from San Diego, CA, look for cracked, overturned, and rounded rocks of all sizes, much the same from top to bottom on the sides of 100-1000 m hills and mountains, with surface glazes and coatings, say, the NE corner of Santee... 32.878538 -116.968926 0.329 km elevation, 12 m long white boulders, NE corner of Santee, CA 32.721265 -116.930218 0.214 km elevation road rounded gray-white rock ~4 m high just S of Millar Ranch Road, S of road 94 with road level outcrop rocks to E 32.721265 -116.930218 0.214 km elevation road, just E of huge power lines, N of Mount Miguel. 32.701877 -116.763706 1.142 km elevation top massive layers of exposed gray-white rock Lyons Peak Lyons Peak Fire Lookout Station Lyons Peak Road to top on N side from Lyons Valley Road, in turn S of Skyline Truck Trail and W of N end of Honey Springs Road, which goes W to road 94 32.738895 -116.716424 1.169 km elevation top Gaskill Peak massive layers of cracked geoablated gray-white rocks within the fellowship of service, Rich Murray, MA Boston University Graduate School 1967 psychology, BS MIT 1964 history and physics, 1039 Emory Street, Imperial Beach, CA 91932 505-819-7388 cell 619-623-3468 home rich.murray11 free Skype audio, video chat ============================================================ FRIAM Applied Complexity Group listserv Meets Fridays 9a-11:30 at cafe at St. John's College to unsubscribe http://redfish.com/mailman/listinfo/friam_redfish.com |
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