The theory of jetting - Application to the origin of tektites

Details The theory of jetting - Application to the origin of tektites The theory of jetting - Application to the origin of tektites

Oct 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993icar..105..441v&link_type=abstract

Icarus, vol. 105, p. 441

Physics

15

Tektites, Craters, Earth Surface, Impact, Thin Plates, Half Spaces

Scientific paper

The occurrence of 'jetting' when objects' surfaces converge obliquely, which has been proposed as the basis for the terrestrial-impact origin of tektites, depends on the angle and velocity of their convergence, as well as the objects' material properties. The theory of jetting during the collision of thin plates is here extended to the case of a sphere's impact on a half-space, to model asteroidal impacts at velocities in the 10-30 km/sec range and impact angles of 0 (normal) to 75 deg. Because tektites lack measurable siderophile contamination from projectile material, jetting does not account for the terrestrial impact origin of tektites.

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