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Sunday, May 10, 2020 | History

1 edition of Tektites found in the catalog.

Tektites

Tektites

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Published by University of Chicago P. in Chicago .
Written in English


Edition Notes

Statemented. by John A. O"Keefe.
ContributionsO"Keefe, John A.
The Physical Object
Pagination228p.
Number of Pages228
ID Numbers
Open LibraryOL20351640M

Tektites are natural glasses found scattered across wide areas of the surface of Earth. In a Science paper entitled ‘Tektites are Terrestrial’, written at a time when many argued tektites were from the moon, Henry Faul (, p.1) said, ‘To anyone who has worked with them, tektites are probably the most frustrating stones ever found on Earth’. Bediasite is a form or type of originates in an area in the eastern part of the U.S. state of Texas centered on the small town of Bedias which is 74 miles ( km) north west of Houston. They are found in about nine Texas Counties in an area of over 7, square miles (18, km 2).The largest specimen ever found is just over grams.

Georgiaite is a form or type of are found in part of the million-year-old North American strewnfield coming from the Chesapeake Bay impact strewnfields and tektite groups are associated with this impact: the black Bediasites in Texas and the green Georgiaites in Georgia.. Georgiaites occur in east-central Georgia, with approximately specimens found . Tektites were first discovered in in Czechoslovakia (then Moravia) near the River Moldau, hence the name moldavite. It has been argued that tektites originated as a result of violent explosive activity on the Moon and were thrown all the way to the Earth’s scientists, currently in the majority, argue that tektites are of terrestrial origin.

O'Keefe's Tektites and Their Origins, and Tektites (rare) Every book and pamphlet authored by H. H. Nininger, autographed A virtually complete run of Meteoritics journals through , and an extremely rare 4-volume set of it's predecessor, Contributions to the Society for Research on Meteorites, Seller Rating: % positive. Less explored is the study of impact glass morphology. Impact glasses differ from tektites in slight ways. They usually have more inclusions, a slightly higher water content and are rarely found in aerodynamic forms. Also, the area they are found in (known as a strewn field) is much smaller.


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Tektites Download PDF EPUB FB2

This is the author’s third book covering meteorites / tektites, and related subjects. In this publication, the author covers meteors, the appearance of a meteorite fall, meteorite producing fireball events, and near misses with large meteorites around the world.

This is the author's third book covering meteorites / tektites, and related subjects. In this publication, the author covers meteors, the appearance of a meteorite fall, meteorite producing fireball events, and near misses with large meteorites around the world. Tektites Hardcover – January 1, by John A.

(editor) O'Keefe (Author) out of 5 stars 1 rating4/5(1). Tektites A Cosmic Puzzle Paperback – J by Hal Povenmire (Author) › Visit Amazon's Hal Povenmire Page.

Find all the books, read about the author, and more. See search results for this author. Are you an author. Learn about Author Central Author: Hal Povenmire. Tektites book (from Greek τηκτός tēktós, Tektites book are gravel-sized bodies composed of black, green, brown, or gray natural glass formed from terrestrial debris ejected during meteorite term was coined by Austrian geologist Franz Eduard Suess (–), son of Eduard Suess.

They generally range in size from millimeters to centimeters. Tektites has 1, members. For people obsessed with tektites and tektite research (Moldavites, Indochinites, Rizalites, Philippinites, Australites.

Tektite, any of a class of small, natural glassy objects that are found only in certain areas of the Earth’s surface. Tektites formed from the melting and rapid cooling of terrestrial rocks that had been vaporized by the high-energy impacts of large meteorites, comets, or asteroids upon the surface of the Earth.

The name tektite is derived from the Greek tektos, or melted. These glassy objects have fascinated people of the world for centuries. The first known description of tektites comes from China around B.C., during the T’ang dynasty, in a book by Liu Sun, Ling Piao Lu Yi, loosely translated as “Notes on the Wonders Beyond the Nanling Mountains in Kwangtung”.

Tektites. Chicago, University of Chicago Press [] (OCoLC) Online version: O'Keefe, John Aloysius, Tektites. Chicago, University of Chicago Press [] (OCoLC) Document Type: Book: All Authors / Contributors: John Aloysius O'Keefe. Additional Physical Format: Online version: Barnes, Virgil E.

(Virgil Everett), Tektites. Stroudsburg, Pa., Dowden, Hutchinson & Ross []. Tektite Information Solving The Tektite Puzzle. Tektites, in the simplest terms are pieces of natural glass. Several natural glass types are found on the Earth. By outward appearance some tektites resemble obsidian the commonest of the natural glasses.

Bediasite tektites are found in a small region of eastern Texas. This tektite is generally a very dark black color and often a little abraded from natural weathering. Most splash form types are present in this strewnfield with spheroid.

Rarely cores. Povenmire, Hal, (), TEKTITES: A Cosmic Enigma, Hal Povenmire. Hal has just finished his new book which is much larger and more comprehensive with 4 times as many pictures as his earlier edition. $ plus $ postage/handling in the US. International orders please inquire on postage/handling charges.

TEKTITES AND THE MOON John A. O'Keefe Theoretical Division, Goddard Space Flight Center National Aeronautics and Space Administration Tektites are small glassy objects with sizes of the order of an inch, and colored usually black and sometimes green or brown. In the Map shown below australite distribution (taken from the book 'tektites' written by Ken McNamara and Alex Bevan), I have superimposed what I believe to be bands of 'dense patches'.

The lines d - e and f - g were first proposed by * (4) McColl and Williams for the Distribution pattern in Southern Australia and I have extended them north west. TEKTITE TESTS. T ektites vs Terrestrial Volcanic Obsidian.

Firstly I would like to credit the two following pages from The Tektite Source - 'Is it a tektite?' and The Meteorite Times - 'Jim's Fragments, January - Tektite Testing'. These pages have excellent information on how to differentiate tektites from terrestrial volcanic obsidian and other glassy materials.

Tektite definition is - a glassy body of probably meteoritic origin and of rounded but indefinite shape. VERY QUICK GUIDE TO TEKTITES.

What are they. Tektites are natural glass objects primarily composed of silica. Tektites found on Earth are formed by large asteroidal or cometary impact with the Earth. Energy from the impact melts terrestrial rock and ejects it into the upper reaches of the atmosphere. A few minutes later tektites rain down.

All the important topics of meteorites are covered, including meteorite hunting, impact craters and impact rocks, meteorite classifications, tektites, and much more. The second half of the book is pictures with descriptions and histories of dozens of famous meteorites.

Compare book prices from overbooksellers. Find Tektites (Benchmark papers in geology) () by Barnes, Virgil E.5/5(1). Edward Albin, Marc Norman, and Michael Roden, "Major and Trace Element Compositions of Georgiaites: Clues to the Source of North American Tektites," Meteoritics and Planetary Science 35 (): G.

J. H. McCall, Tektites in the Geological Record: Showers of Glass from the Sky (London: Geological Society, ). C. Wylie Poag. Australites are tektites found in are mostly dark or black, and have shapes including discs and bowls that are not seen in other tektites.

NASA used the shape of "flanged button" australites in designing re-entry modules for the Apollo program in the s.Tektites were first recognized in North America from Grimes County, Texas.

These tektites were named bediasites after the Bedias Indians, who formerly roamed the area. As tektites from the same event, around 35 million years ago, are found in Georgia, Barbados, and Martha's Vineyard (a lone specimen), and as microtektites are found as far away.