Recently Published Papers on Impact Structures and Impactites

Paul
Sun Feb 15 23:11:48 EST 2009

Dear Friends,

Below are some recent papers about impact structures and
alleged impactites that have appeared.

1. Schmieder, M., E. Buchner, and D. P. LeHeron, 2009, The Jebel
Hadid structure (Al Kufrah Basin ,SE Libya)—A possible impact
structure and potential hydrocarbon trap? Marine and Petroleum
Geology. vol 26. no. 3, pp. 310-318. doi:10.1016/j.marpetgeo.2008.04.003

http://dx.doi.org/10.1016/j.marpetgeo.2008.04.003

The Jebel Hadid structure is formed in the Nubian Sandstone and
located in southern Al Kufrah Basin. It is a 4.7 km circular
feature with a set of multiple concentric annular ridges. they
suggest "that the Jebel Hadid structure might represent an
eroded, complex impact structure' much like the Tin Bider
structure in Algeria. Its location is 20º 52' N and 22º 42' E).

2. Ghoneim, E. M., 2008, Ibn-Batutah: A possible simple impact
structure in southeastern Libya, a remote sensing study.
Geomorphology. vol. 103, no. 3, pp. 341-350.

The Ibn-Batutah feature is a circular structure centered on
21° 34′ 10″ N and 20° 50′ 15″ E and located in southeastern
Libya. It is formed in Nubian Sandstone.

http://dx.doi.org/10.1016/j.geomorph.2008.07.005
http://www.bu.edu/remotesensing/faculty/research/ghoneim/index.html

3. McCall, G. J. H., 2009, Half a century of progress in research
on terrestrial impact structures: A review. Earth-Science Reviews.
vol 92, no. 3-4, pp. 99-116.

http://dx.doi.org/10.1016/j.earscirev.2008.11.004

4. McCall, G. J. H., in press, The Carbonado diamond conundrum
Earth-Science Reviews, In Press, Accepted Manuscript, Available
online 13 February 2009. doi:10.1016/j.earscirev.2009.01.002

http://dx.doi.org/10.1016/j.earscirev.2009.01.002

"The reviewer presents the results of a literature search on the
enigmatic occurrences of carbonado; a form (but not the only
form) of polycrystalline diamond, which is mined for industrial
diamonds."

He hypothesizes that "carbonado does stem from terrestrial
eruptive processes" and concludes that much research remains
to be performed before any conclusions can be reached.

5. Schmieder, M., and E. Buchner, 2007, Short note: The Faya
basin (N Chad, Africa) – A possible impact structure? Journal
of African Earth Sciences. vol. 47, pp. 62–68.

The Faya basin is an almost circular structure, centered on
18º 10' N and 19º 34' E. It lies about 55 km ENE of the city
of Faya (Largeau) and has a diameter of about 2 km."

http://dx.doi.org/10.1016/j.jafrearsci.2006.11.004
http://adsabs.harvard.edu/abs/2007JAfES..47...62S

Yours,

Paul

New Online Impact Structures and Impactites Article

Paul H bristolia at yahoo.com
Fri Feb 11 14:09:12 EST 2005

Dear Fellow Meteorite Fans

There is an interesting online article on impactites
and impact structures in the most recent "The
Sedimentary Record", Volume 3, No. 1 - March
2005 at:

http://www.sepm.org/sedrecord/home.htm

It is "The Sedimentary Record of Meteorite Impacts:
An SEPM Research Conference" (1.9 MB PDF File ),
which can downloaded at;

http://www.sepm.org/sedrecord/sedrecord3.1.pdf

Best Regards,

Paul
Baton Rouge, LA

An Opportunity For Public Service, Profit, and Publicity

Paul H bristolia at yahoo.com
Sun Nov 28 20:10:52 EST 2004

While looking around on the Internet, I
found an opportunitye for the meteorite
community to do a public service and, at
the same time possibly profit for their
contributions.

This ooportunity exists at the "Earth
Science World ImageBank" at:

http://www.earthscienceworld.org/imagebank/

"The Earth Science World ImageBank is a
service provided by the American Geological
Institute (AGI). This ImageBank is designed
to provide quality geoscience images to the
public, educators, and the geoscience
community."

First, the meteorite community could do a
public service by submitting representative
pictures of meteorites, tektites, impactites,
impact craters, meteorite thin sections,
and anything else related to meteorites. As
far as I found this database has only one
picture of a meteorite and no images of
tektites. It would certainly would be a
public service to contribute pictures of
meteorites and related items, which can be
used for educational purposes. I am using
the word "contribute" because the person
submitting the pictures still retains
copyright on it and can still require a
fee for any commercial use.

It would be a public service if a collection
of meteorite photographs could be submitted
to this web site that included an example
of each different type of meteorite and a
selection of pictures of historically
important falls. Also, pictures of craters,
meteorites as they are found in the field,
impactites, shocked belenmites, shocked
quartz, etc. would be an important
contribution.

Second, one feature of the image data bank
is that a person can permit the free use
of their images for specific educational
purposes and, yet, require people, who want
to use an image for commercial purposes,
pay them a set fee for each use of one of
their images. Thus, not only can a person
perform a public service by providing
images of meteorites, impact craters,
impactites, tektites, thin sections, and
so forth, they also can profit from an
image in the database, if someone wants
to use it for commercial purposes.

Finally, the people on this list should
note that the name of the person or company
hdoling teh copyright is displayed in the
database. This gives them some free publicity.
Also, if an image is used for educational
purposes, the database requests that the
proper credit be given to it. Again, the
contributors will get some more free
publicity whenever their image is used.

For details of how to contribute, go to:

http://www.earthscienceworld.org/imagebank/submit/index.html

"The Earth Science World ImageBank is
always looking to collect more high-
quality geoscience images for this
growing collection. The primary mission
of the ESWIB is to provide these images
to educators, the geoscience community,
and the public for non-commercial use.
Your contribution and assistance in
helping us develop this lasting resource
will not only benefit the scientific
community, but also help to enhance
Earth System education."

Best Regards,

Paul
Baton Rouge, LA