Walter Branch asked: >List members, is there such a site?
Yes, there is, there are some references listed in the World Crater Inventory at: http://www.unb.ca/passc/ImpactDatabase/images/marquez.htm It's Latitude is : N 31� 17' and longitude is W 96� 18' It has a diameter of 12.7 km and has been dated as being about 58 million years old. It lies near Marquez, Texas. Also, shattercones have been found in limestone pieces that are found in the area of this impact structure. Go look at: Dietz, R. S., and McHone, J. F., 1991, Astroblemes recently confirmed with shatter cones (abstract). Meteoritics, v. 26, p. 332. Sharpton,, V. L., and Gibson, J. W., Jr., 1990, The Marquez Dome impact structure, Leon County, Texas Abstracts of papers submitted to the Twenty-first Lunar and planetary science conference. vol. 21, pp. 1136-1137, Lunar and Planetary Science Conference, Houston, Texas. Wong, A. C. Sadow, J. C., Reid, A. M., Hall, S. A., and Sharpton, V. L., 1997, The Marquez crater in Leon County, Texas. Ames Structure in Northwest Oklahoma and Similar Features: Origin and Petroleum Production (1995 Symposium), K. S. Johnson and J. A. Campbell, Oklahoma Geological Survey, Norman, Oklahoma, Circular 100, p. 278. A few of many other references are: Buchanan, P.C., Koeberl, C., and Reid, A, M,, 1998, Impact into unconsolidated, water-rich sediments at the Marquez Dome, Texas. Meteoritics & Planetary Science. vol. 33, no. 5, pp. 1053-1064. Gibson, J. L., 1989, Marquez Dome-an impact in Leon County, Texas. Unpublished master's thesis, University of Houston, Houston, Texas. Wong, A., 2001, Reconstruction of the subsurface structure of the Marquez impact crater in Leon County, Texas, USA, based on well-log and gravity data. Meteoritics & Planetary Science, vol. 36, no. 11, pp.1443-1455 Yours, Paul Baton Rouge, LA __________________________________ Do you Yahoo!? SBC Yahoo! DSL - Now only $29.95 per month! http://sbc.yahoo.com ______________________________________________ Meteorite-list mailing list [EMAIL PROTECTED] http://www.pairlist.net/mailman/listinfo/meteorite-list
