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Distal Ejecta from the Ries Crater: Moldavites and ProjectileUsing detailed geological, petrographic, geochemical, and geographical constraints we have performed numerical modeling studies that relate the Steinheim crater (Da = 3.8 km), the Ries crater (D(sub a) = 24 km) in Southern Germany, and the moldavite (tektite) strewn field. The known moldavite strewn field extends from about 200 to 450 km from the center of the Ries to the ENE forming a fan with an angle of about 57 deg. An oblique impact of a binary asteroid from a WSW direction appears to explain the locations of the craters and the formation and distribution of the moldavites. In a presented study we attempt to answer more questions concerning this particular strewn field as well as other questions common for all tektites. What is the maximum 'numerical' size of the moldavite strewn field? How is this size connected with the crater size and the impact conditions? How many tektites may be found theoretically without weathering and surface erosion? What is the size of tektites? Why they are not contaminated by projectile? Where is the projectile material?
Document ID
20030067047
Acquisition Source
Headquarters
Document Type
Conference Paper
Authors
Artemieva, N. A.
(Academy of Sciences (USSR) Moscow, USSR)
Date Acquired
August 21, 2013
Publication Date
January 1, 2003
Publication Information
Publication: Third International Conference on Large Meteorite Impacts
Subject Category
Lunar And Planetary Science And Exploration
Funding Number(s)
CONTRACT_GRANT: RFBR-01-05-64564-a
Distribution Limits
Public
Copyright
Other
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