- Fenambosy Chevron
The Fenambosy Chevron is one of four chevron-shaped land features on the southwest coast of
Madagascar , near the tip of Madagascar, 600 feet (180 m) high and three miles (5 km) from the ocean. It is composed mainly of material found on theocean floor at coord|25|2|26.17|S|44|09|29.7|E. . Chevrons such as Fenambosy have been hypothesized as providing evidence of "megatsunami s" caused bycomet s orasteroid s crashing intoEarth . "About 900 miles southeast from the Madagascar chevrons, in deep ocean, isBurckle crater , which Dr. Abbott discovered last year. Although itssediment s have not been directly sampled, cores from the area contain high levels ofnickel and magnetic components associated with impact ejecta. Burckle crater has not been dated, but Dr. Abbott estimates that it is 4,500 to 5,000 years old." [ [http://www.nytimes.com/2006/11/14/science/14WAVE.html?_r=1&ref=science&oref=slogin New York Times] article "Ancient Crash, Epic Wave" published November 14, 2006]ources and notes
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