New Paper Argues That Tunguska Blast was Created by Comet Impact

Paul bristolia at yahoo.com
Thu Jun 25 08:23:59 EDT 2009

Space Shuttle Science Shows How 1908 Tunguska Explosion Was
Caused By A Comet, Science Daily, June 25, 2009.,

http://www.sciencedaily.com/releases/2009/06/090624152941.htm

Kelley, M. C., C. E. Seyler, and M. F. Larsen. (2009), Two-dimensional
Turbulence, Space Shuttle Plume Transport in the Thermosphere,
and a Possible Relation to the Great Siberian Impact Event.
Geophysical Research Letters. (accepted 22 June 2009)
DOI: 10.1029/2009GL038362

http://www.agu.org/contents/journals/ViewPapersInPress.do?journalCode=GL

Yours,

Paul H.

100th Anniversary of the Tunguska impact Nature issue

Paul bristolia at yahoo.com
Thu Jun 26 09:05:06 EDT 2008

The latest issue of Nature (Volume 453 Number 7199)
celebrates the 100th Anniversary of the Tunguska impact.
It has papers and articles about impact events on the Moon
and Mars and NEOs. The URL for this issue is:

http://www.nature.com/nature/journal/v453/n7199/

The articles and papers include:

1. Planetary science: Tunguska at 100

2. Planetary science: The hole at the bottom of the Moon

3. Planetary science: The burger bar that saved the world

4. Gallery feature: All craters great and small

5. What Spaceguard did

6. Planetary science: Forming the martian great divide

7. Mega-impact formation of the Mars hemispheric dichotomy
by Margarita M. Marinova, Oded Aharonson & Erik Asphaug
http://www.nature.com/nature/journal/v453/n7199/abs/nature07070.html

8. The Borealis basin and the origin of the martian crustal dichotomy
Jeffrey C. Andrews-Hanna, Maria T. Zuber & W. Bruce Banerdt
http://www.nature.com/nature/journal/v453/n7199/abs/nature07011.html

9. Implications of an impact origin for the martian hemispheric dichotomy
F. Nimmo, S. D. Hart, D. G. Korycansky & C. B. Agnor
http://www.nature.com/nature/journal/v453/n7199/abs/nature07025.html

Giant Asteroid Flattened Half of Mars, Studies Suggest, Scientific American
http://www.sciam.com/article.cfm?id=giant-asteroid-flattened

Mars' two-faced riddle 'solved', BBC News, UK
http://news.bbc.co.uk/2/hi/science/nature/7473128.stm

Yours,

Paul H.

Correct URLS to PDF files of Tunguska “crater” papers

Paul bristolia at yahoo.com
Mon Jun 9 09:30:49 EDT 2008

In my initial post I have the wrong URLs for some of the papers.
which Listed in it. The old post was at:

http://six.pairlist.net/pipermail/meteorite-list/2008-June/045010.html

The correct URLs for the PDF files are:

Gasperini, L., F. Alvisi, G. Biasini, E. Bonatti, G. Longo, M.
Pipan, M. Ravaioli and R. Serra, 2008, A possible impact
crater for the 1908 Tunguska Event. Terra Nova. vol. 19,
no. 4, pp. 245-251 doi: 10.1111/j.1365-3121.2007.00742.x
Correct PDF file

http://www.blackwell-synergy.com/doi/pdf/10.1111/j.1365-3121.2007.00742.x

The comment and reply are:

Collins, G. S., N. Artemieva, K. Wünnemann, P. A. Bland,
W. U. Reimold, and C. Koeberl, 2008, Evidence that Lake
Cheko is not an impact crater. Terra Nova. vol. 20, no. 2,
pp. 165–168 doi:10.1111/j.1365-3121.2008.00791.x
Correct PDF file

http://www.blackwell-synergy.com/doi/pdf/10.1111/j.1365-3121.2008.00791.x

Gasperini, L., Enrico Bonatti, and Giuseppe Longo, 2008,
Lake Cheko and the Tunguska Event: impact or non-impact?
Terra Nova. vol. 20, no. 2, pp. 169-172,
doi: 10.1111/j.1365-3121.2008.00792.x
Correct PDF file

http://www.blackwell-synergy.com/doi/pdf/10.1111/j.1365-3121.2008.00792.x

Yours,

Paul H.

Comment and reply to Tunguska "crater" paper now available online

Paul bristolia at yahoo.com
Sat Jun 7 16:54:18 EDT 2008

The comment and reply on the alleged crater associated with the
Tunguska impact event are now online and free to download.

The original paper is:

Gasperini, L., F. Alvisi, G. Biasini, E. Bonatti, G. Longo, M.
Pipan, M. Ravaioli and R. Serra, 2008, A possible impact
crater for the 1908 Tunguska Event. Terra Nova. vol. 19,
no. 4, pp. 245-251 doi: 10.1111/j.1365-3121.2007.00742.x

Web page
http://www.blackwell-synergy.com/doi/abs/10.1111/j.1365-3121.2007.00742.x

PDF file
http://www.blackwell-synergy.com/doi/pdf/10.1111/j.1365-3121.2008.00792.x

The comment and reply are:

Collins, G. S., N. Artemieva, K. Wünnemann, P. A. Bland,
W. U. Reimold, and C. Koeberl, 2008, Evidence that Lake
Cheko is not an impact crater. Terra Nova. vol. 20, no. 2,
pp. 165–168 doi:10.1111/j.1365-3121.2008.00791.x

Web Page
http://www.blackwell-synergy.com/doi/abs/10.1111/j.1365-3121.2008.00791.x

PDF file
http://www.blackwell-synergy.com/doi/pdf/10.1111/j.1365-3121.2008.00792.x

Gasperini, L., Enrico Bonatti, and Giuseppe Longo, 2008, Lake
Cheko and the Tunguska Event: impact or non-impact? Terra Nova.
vol. 20, no. 2, pp. 169-172, doi: 10.1111/j.1365-3121.2008.00792.x

Web Page
http://www.blackwell-synergy.com/doi/abs/10.1111/j.1365-3121.2008.00792.x

PDF file
http://www.blackwell-synergy.com/doi/pdf/10.1111/j.1365-3121.2008.00792.x

Yours,

Paul H.