The Great‐Circle Distribution of the Tektites*

Paz, Lincoln La

doi:10.1111/j.1945-5100.1938.tb00182.x

Cited by 2 publications

(2 citation statements)

References 5 publications

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“…Because so little had been published on tektites in the Western Hemisphere, I reviewed world literature on the subject in my publication announcing the discovery of tektites in North America (Barnes, I 940a). Another article appeared after my research was started, in which La Paz (1938) revised the "great circle" theory of tektite distribution of David et al (1927) to two "great circles" after Lacroix (1934) announced the discovery of Ivory Coast tektites.…”

Section: * Barringer Award Papermentioning

confidence: 99%

Tektite research 1936–1990*

Barnes¹

1990

Meteoritics

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— Fifty‐odd years of tektite research are reviewed, proceeding from the discovery of the first North American tektites in 1936. This included the early recognition that tektites were terrestrial objects rather than meteorites and that the glassy particles in tektites were fused quartz (lechatelierite). Later, during National Science Foundation‐supported research, it was found that some tektites appeared to have formed as puddles of melt, that the content and character of bubbles in lechatelierite can be used as a relative temperature scale, that rayed bubbles in tektites formed from hydrous minerals, that bubbles in tektites formed chiefly from water which was absorbed into the walls of the bubbles leaving vacuums, and that “fingers” in the surficial part of some tektites may have formed by differential volatilization. Some unpublished observations and adventures are briefly reported.

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Section: * Barringer Award Papermentioning

confidence: 99%

Tektite research 1936–1990*

Barnes¹

1990

Meteoritics

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“…David, Summers & Ampt (1927) related tektite distribution to a great circle, they wrote before the discovery of Ivory Coast and North American tektites. La Paz (1938) suggested two and later (La Paz, 1944), three great circles. If, in fact, tektite distributions relate to parts of great circles this is evidence for a meteoritic or terrestrial origin, the latter either by impact (producing rays as on the Moon) or by hyper-volcanism.…”

Section: F Great Circle and Other Distributionsmentioning

confidence: 99%

Tektites probably wholly terrestrial and related to continental movement

Crawford

1979

Geol. Mag.

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SummaryThe four groups of tektites are now widely regarded as the product of splash from a meteoritic or cometary impact melt of terrestrial rock. They include two groups (Moldavites and Ivory Coast tektites) attributed to the Nordlinger Ries and Bosumtwi craters. These craters seem unlikely to be of impact origin, though hyper-explosive. Tektites are, therefore, more probably all wholly terrestrial. For much the largest group, those of the combined Southeast Asian-Australian strewnfield, no satisfactory source is known. An origin in Southeast Asia, even by impact, is improbable. A possible source lies in Central Asia. The hyper-explosive activity is regarded as an extreme form of volcanism, a consequence locally and rarely of the continual combined vertical and ‘horizontal’ movements of continents, here termedtribulation.

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The Great‐Circle Distribution of the Tektites*

Cited by 2 publications

References 5 publications

Tektite research 1936–1990*

Tektite research 1936–1990*

Tektites probably wholly terrestrial and related to continental movement

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