Hello, Paul and the list,
you can find a list of the current known impact structures (198 pcs) from Jarmo Moilanen�s site;
http://www.netppl.fi/~jarmom/geo/imp/impacts.htm
Also some quite good information about the topic. I�m living nearby Suvasvesi N impact structure, and it seems, we have a double-one, also Suvasvesi S is an impact crater. Like Clear- water in Canada or Ries-Steinham in Germany. The finnish impact structures can be found from;
http://www.netppl.fi/~jarmom/geo/imp/fincrat_e.htm
and from;
http://www.gsf.fi/paleo/impacts.html
The list of general literature to impact structures and cratering process;
http://www.gsf.fi/paleo/files/literatu.html#general
Well, some good books to read, areromagnetic maps of the area, if you can find any, and so on.Then the legwork; you just have to find some shatter-cones, PDF-formated quarz, suevite and some another impactite materials to prove you have a real crater...;-
There are lot of impact structures to find, and also lot of people, who think, they have found a structure, but they have not, so good luck to you and your crater, keep me updated about the project.
take care,
pekka
Paul Heinrich wrote:
On Tue, 10 Jun 2003 12:33:57 -0500 docnpat [EMAIL PROTECTED] asked:
Nearby is very possibly a large impact crater. I would like to know more about impact craters -- structure, characteristics, etc. Can any of you give me some advice about material to study?
On Tue, 10 Jun 2003 11:41:37 -0700 (PDT) Mark Jackson [EMAIL PROTECTED] replied:
+Books: Rocks From Space by O. Richard Norton
+ Cambridge Encyclopedia Of Meteorites
+ http://www.vftn.org/projects/moschkau/index.htm
+ http://www.unb.ca/passc/ImpactDatabase/
+ http://astrogeology.usgs.gov/
+
+ A few things to get you started . . . good luck. +Impacts are a bear to prove.
I would also recommend looking at:
1. Traces of Catastrophe: A Handbook of Shock-
Metamorphic Effects in Terrestrial Meteorite Impact Structures by Bevan M. French (1998) at:
http://www.lpi.usra.edu/publications/books/CB-954/CB-954.intro.html
2. Koerbel, C., 1997, Impact cratering: the mineralogical and geochemical evidence. , in K. S. Johnson and J. A. Campbell, eds., Ames Structure in Northwest Oklahoma and Similar Features: origin and Petroleum Production (1995 Symposium): Oklahoma Geological Survey Circular, no. 100, p. 30-54.
3. Montanari, A., and Koeberl, C., 2000, Impact Stratigraphy: The Italian Record. Lecture Notes in Earth Sciences, Springer, 364 pp.
4. Grieve, R. A. F., 1991, Terrestrial impact: The record in the rocks: Meteoritics, v. 26, pp. 175-194.
Yours
Paul Baton Rouge, LA
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