D. Wilhelms.

De visie van een geoloog op de geschiedenis van het Maanonderzoek. Wat heeft o.a. het Apollo-project opgeleverd, 477 blz, harde kaft.
...This is a good book and you'll find no better account about the geology of the Moon. My only bone to pick with the author is as follows: on the subject of tektites--those odd-shaped, natural glass stones which show evidence of having entered the Earth's atmosphere at angles which have their starting points on the Moon's surface--Wilhelms displays his conservative bias in favor of the safe diagnosis which chants that tektites are fancy forms of impactites and crater glass. The author fails to report that micro-tektites were indeed discovered on the Moon in several Apollo samples as well as in a sample from the Russian Luna 16 sample return mission! And for at least one Apollo sample, the tektitic material is identical to Earth's tektites; had this rock been found in Antarctica, say, according to retired NASA scientist J.A. O'Keefe, it would have been identified as a tektite! The ghostly mantra of old Harold Urey--that tektites are terrestrial--keeps rearing its head on this topic. When you begin to look at impact structures and tektites, you begin to realize that tektites are not there because of the craters, but vice versa. So, the debate about tektites and their origins is far from settled as Wilhelms, et al, would lead us to believe.!

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