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Evidence for this reported tektite strewn field consists of tektites recovered from western Belize in the area of the villages of Bullet Tree Falls, Santa Familia, and Billy White. This area lies about 55 km east-southeast of Tikal, where 13 tektites, two of which were dated as being 820,000 years old, of unknown origin were found.
Their age corresponds with the age of other tektites in the Australian strewn tektite field. [1] In 1964, a very large philippinite, weighing 226.3 grams (0.499 pounds) with dimensions 6.5 x 6.2 x 5.2 cm, was purchased by the University of California, Los Angeles Department of Astronomy.
Impactite includes shock-metamorphosed target rocks, melts and mixtures of the two, as well as sedimentary rocks with significant impact-derived components (shocked mineral grains, tektites, anomalous geochemical signatures, etc.).
The North American tektite strewn field is a large area, known as a strewn field, in North America defined by the presence of tektites consistent with having come from the same bolide. The field is believed to be associated with the Chesapeake Bay impact crater .
Tektite – glassy terrestrial debris created by meteorite impacts. Thumbprinting – see regmaglypts; Total known weight (TKW) – total known mass of a meteorite. Trio – a grouping of three meteorites that share similar characteristics (see Grouplet). Type – subdivision of meteorites. Loosely defined.
The Chesapeake Bay impact crater is a buried impact crater, located beneath the mouth of Chesapeake Bay, United States.It was formed by a bolide that struck the eastern shore of North America about 35.5 ± 0.3 million years ago, in the late Eocene epoch.
Shaded areas represent tektite finds. The Australasian strewnfield is the youngest and largest of the tektite strewnfields, with recent estimates suggesting it might cover 10%–30% of the Earth's surface. [1] [2] [3] Research indicates that the impact forming the tektites occurred around 788,000 years ago, most likely in Southeast Asia.
Less than ten thousand years old, and with a diameter of 100 m (330 ft) or more. The EID lists fewer than ten such craters, and the largest in the last 100,000 years (100 ka) is the 4.5 km (2.8 mi) Rio Cuarto crater in Argentina. [2]
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