[meteorite-list] UPHEAVAL DOME: CONFIRMATION OF IMPACT ORIGIN

[Paul]

Stefan Brandes wrote:

" a newly discovered Crater in Utah:
 http://lpod.wikispaces.com/November+29%2C+2008 "

Look at:

http://www.mail-archive.com/meteorite-list@meteoritecentral.com/msg64615.html

The paper discussing the shocked quartz is:

Buchner, E., and T. Kenkmann, 2008, Upheaval Dome, Utah, USA: 
Impact origin confirmed. Geology. vol.36, no. 3, pp. 227-230.

In part, this abstract stated:

"In this study, we document, for the first time, shocked 
quartz grains from this crater in sandstones of the 
Jurassic Kayenta Formation. The investigated grains 
contain multiple sets of decorated planar deformation 
features. ... The shocked quartz grains were found in 
the periphery of the central uplift in the northeastern 
sector of the crater, which most likely represents the 
cross range crater sector."

http://www.gsajournals.org/perlserv/?request=get-abstract&doi=10.1130%2FG24287A.1
and http://geology.geoscienceworld.org/cgi/content/full/36/3/227?ck=nck

and there is :

I. Upheaval Dome, Utah - Bibliography By Alpha and By 
Reverse Date by K. Fisher, November 25, 2008 at:

http://members.csolutions.net/fisherka/astronote/observed/Upheaval/Bibliography.html

III. Buchner, E., and T. Kenkmann, 2008, Upheaval Dome, 
Utah, USA: Impact Origin Confirmed. Large Meteorite 
Impacts and Planetary Evolution IV, held August 17-21, 
2008 at Vredefort Dome, South Africa. LPI Contribution 
No. 1423, paper id. 3005.

http://adsabs.harvard.edu/abs/2008LPICo1423.3005B

Some interesting related papers are:

W. Alvarez, E. Staley, D. O'Connor, and M. A. Chan, 
1999, Synsedimentary deformation in the Jurassic of 
southeastern Utah; a case of impact shaking? Geology. 
v. 26; no. 7, pp. 579-582.

Abstract at:

http://geology.geoscienceworld.org/cgi/content/abstract/26/7/579
http://www.gsajournals.org/perlserv/?request=get-abstract&doi=10.1130%2F0091-7613(1998)026%3C0579%3ASDITJO%3E2.3.CO%3B2

PDF file at:

http://eps.berkeley.edu/~platetec/125.pdf

Dan Bridges, L. W., W. Alvarez, E. Staley, D. O'Connor, 
and M. A. Chan, 1999, Synsedimentary deformation in the 
Jurassic of southeastern Utah; a case of impact shaking?; 
discussion and reply. Geology. v. 27, no. 7, pp. 661-662

http://www.gsajournals.org/perlserv/?request=get-abstract&doi=10.1130%2F0091-7613(1999)027%3C0661%3ASDITJO%3E2.3.CO%3B2

Yours,

Paul H.