[meteorite-list] Recently Published Papers on Impact Structures and Impactites

[Paul]

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