The layer contained the fused glass beads called tektites and shocked quartz grains that are unmistakable signs of a bolide impact.
32.
The tektite melt originated from a sand-rich surface layer that was ejected to distances up to downrange of the crater.
33.
Splash-form and aerodynamically shaped tektites are only differentiated on the basis of their appearance and some of their physical characteristics.
34.
According to one study, a portion of lunar sample 12013 has a chemistry that closely resembles javanite tektites found on Earth.
35.
Two strewnfields and tektite groups are associated with this impact : the black Bediasites in Texas and the green Georgiaites in Georgia.
36.
Chao made many pioneering studies on tektites, and discovered the occurrence of iron-nickel metal in specimens from the Philippines.
37.
The researchers suggest that the event that created the tektites would have caused wide burning and destruction of forests, exposing cobble outcroppings.
38.
Tektites were once thought by many to be obsidian produced by lunar volcanic eruptions, though few scientists now adhere to this hypothesis.
39.
The Ries crater impact event is believed to be the source of Moldavite tektites found in Bohemia and Moravia ( Czech Republic ).
40.
Also, three of the four tektite strewnfields have been linked by their age and chemical and isotopic composition to known impact craters.
