[meteorite-list] free full 32 pages, Very high-temperature impact melt products as evidence for cosmic airbursts and impacts 12, 900 years ago, TE Bunch et al, PNAS: Rich Murray 2012.06.19

From: Rich Murray <rmforall_at_meteoritecentral.com>
Date: Tue, 19 Jun 2012 09:36:31 -0700
Message-ID: <CAHqJ8pbhpA5c+hDsXicgFOwVTodbtWZJH1SipefaO4O5w2g=yQ_at_mail.gmail.com>

free full 32 pages, Very high-temperature impact melt products as
evidence for cosmic airbursts and impacts 12,900 years ago, TE Bunch
et al, PNAS: Rich Murray 2012.06.19
http://rmforall.blogspot.com/2012/06/free-full-32-pages-very-high.html


www.cosmictusk.com via Scribd (can expand pages)

www.pnas.org/cgi/doi/10.1073/pnas.1204453109
10 page pdf [ once saved, the pdf can be copied ]

This article contains supporting information online at
www.pnas.org/lookup/suppl/doi:10.1073/pnas.1204453109/-/DCSupplemental.
22 page pdf

Very high-temperature impact melt products as evidence for cosmic
airbursts and impacts 12,900 years ago

Ted E. Bunch a,1,
Robert E. Hermes b,
Andrew M.T. Moore c,
Douglas J. Kennett d,
James C. Weaver e,
James H. Wittke a,
Paul S. DeCarli f,
James L. Bischoff g,
Gordon C. Hillman h,
George A. Howard i,
David R. Kimbel j,
Gunther Kletetschka k,l,
Carl P. Lipo m,
Sachiko Sakai m,
Zsolt Revay n,
Allen West o,
Richard B. Firestone p,
and James P. Kennett q.

a Geology Program, School of Earth Science and Environmental Sustainability,
Northern Arizona University, Flagstaff, AZ 86011;

b Los Alamos National Laboratory (retired),
Los Alamos, NM 87545;

c College of Liberal Arts, Rochester Institute of Technology,
Rochester, NY 14623;

d Department of Anthropology, Pennsylvania State University,
University Park, PA 16802;

e Wyss Institute for Biologically Inspired Engineering,
Harvard University, Cambridge, MA 02138;

f SRI International, Menlo Park, CA 94025;

g US Geological Survey, Menlo Park, CA 94025;

h Institute of Archaeology, University College London,
London, United Kingdom;

i Restoration Systems, LLC, Raleigh, NC 27604;

j Kimstar Research, Fayetteville, NC 28312;

k Faculty of Science, Charles University in Prague, and

l Institute of Geology,
Czech Academy of Science of the Czech Republic,
v.v.i., Prague, Czech Republic;

m Institute for Integrated Research in Materials, Environments, and
Society (IIRMES),
California State University, Long Beach, CA 90840;

 nForschungsneutronenquelle
Heinz Maier-Leibnitz (FRM II),
Technische Universit?t M?nchen, Munich, Germany;

o GeoScience Consulting, Dewey, AZ 86327;

p Lawrence Berkeley National Laboratory,
Berkeley, CA 94720; and

q Department of Earth Science and Marine Science Instititute,
University of California, Santa Barbara, CA 93106

Edited by* Steven M. Stanley, University of Hawaii, Honolulu, HI,
and approved April 30, 2012
(received for review March 19, 2012)


Figure S6. [ 8 color photos of 0.2 mm spherules, page 16/32 = 6/22 ]
Light photomicrographs of magnetic and glassy spherules from Melrose, PA.
Shapes include spherules, ovals, teardrops, and dumbbells.
Colors include clear, gray, red, brown, and black.
Note spherule B contains a large bubble.
Both dumbbells (D and H) indicate fusion of molten or semi-plastic spherules.
Note that dumbbell H consists of two dissimilar accretionary spherules,
one clear (Si-rich) and the other opaque (Fe-rich).


photo of typical air burst geoablation glaze on hard bedrock at top of
Mount Helix park, E San Diego: Rich Murray 2012.03.15
http://rmforall.blogspot.com/2012/03/redbrown-glaze-on-hard-crystalline.html
http://rmforall.blogspot.com/2012/03/photo-of-typical-air-burst-geoablation.html
http://tech.groups.yahoo.com/group/astrodeep/message/98

Rich Murray,
MA Boston University Graduate School 1967 psychology,
BS MIT 1964 history and physics,
254-A Donax Avenue, Imperial Beach, CA 91932-1918
rmforall at gmail.com
505-819-7388 cell
619-623-3468 home
rich.murray11 Skype audio, video
http://RMForAll.blogspot.com
rmforallblog.wordpress.com
Received on Tue 19 Jun 2012 12:36:31 PM PDT