J
John A. O'Keefe
Researcher at Goddard Space Flight Center
Publications - 108
Citations - 1998
John A. O'Keefe is an academic researcher from Goddard Space Flight Center. The author has contributed to research in topics: Tektite & Origin of the Moon. The author has an hindex of 23, co-authored 108 publications receiving 1958 citations.
Papers
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Journal ArticleDOI
Shock melting and vaporization of lunar rocks and minerals
Thomas J. Ahrens,John A. O'Keefe +1 more
TL;DR: In this article, the entropy associated with the thermodynamic states produced by hypervelocity meteoroid impacts at various velocities is calculated for a series of lunar rocks and minerals and compared with the entropy values required for melting and vaporization.
Book
Tektites and their origin
TL;DR: In this paper, the authors examined the distribution of tektite distribution, taking into account the Australasian strewn fields, the Ivory Coast strewn field, the Moldavite Strewn Field, the North American strewnfield, the Libyan desert glass, the Aouelloul crater glass, and amerikanites, concluding that tektites cannot be terrestrial in origin.
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Complex craters: Relationship of stratigraphy and rings to impact conditions
John A. O'Keefe,Thomas J. Ahrens +1 more
TL;DR: In this article, the scaling laws of the Chicxulub impact were derived for a range of impactor parameters, including radius, velocity, and density, and the impactor diameter.
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The gravitational field of the earth
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The origin of tektites.
TL;DR: In this paper, the origin of Moung Nong type tektities detached by meteoritic impact, considering lunar origin based on diffusion rates in silicates, is discussed in detail.