tektite वाक्य
उदाहरण वाक्य
मोबाइल
- It is speculated that the hypothesized Pantasma Impact Crater in northern Nicaragua might be the source of these tektites.
- These are possibly tektite deposits, formed as molten material ejected by a meteorite impact fell back to Earth.
- Molten terrestrial material ejected from a meteorite impact crater can cool and solidify into an object known as a tektite.
- From the 1950s through the 1990s, NASA aerodynamicist Dean Chapman and others advanced the lunar origin theory of tektites.
- Third, tektites contain virtually no water ( < 0.02 wt % ), unlike terrestrial volcanic glasses.
- Recognized types of tektites, grouped according to their known strewn fields, their associated craters, and ages are:
- He suggested that explosive, hydrogen-driven lunar volcanoes may be the mechanism that launched the tektites to Earth.
- Then on Feb . 14, lunchtime, the Universe Cybercafe at Tektite Building will be the venue for the Eyeball.
- Evidence for the impact origin of the crater includes shocked quartz, a gravity anomaly, and tektites in surrounding areas.
- The impact has been identified as the source of the North American tektite field, namely the Georgiaite and Bediasite fields.
- The layer contained the fused glass beads called tektites and shocked quartz grains that are unmistakable signs of a bolide impact.
- The tektite melt originated from a sand-rich surface layer that was ejected to distances up to downrange of the crater.
- Splash-form and aerodynamically shaped tektites are only differentiated on the basis of their appearance and some of their physical characteristics.
- According to one study, a portion of lunar sample 12013 has a chemistry that closely resembles javanite tektites found on Earth.
- Two strewnfields and tektite groups are associated with this impact : the black Bediasites in Texas and the green Georgiaites in Georgia.
- Chao made many pioneering studies on tektites, and discovered the occurrence of iron-nickel metal in specimens from the Philippines.
- The researchers suggest that the event that created the tektites would have caused wide burning and destruction of forests, exposing cobble outcroppings.
- Tektites were once thought by many to be obsidian produced by lunar volcanic eruptions, though few scientists now adhere to this hypothesis.
- The Ries crater impact event is believed to be the source of Moldavite tektites found in Bohemia and Moravia ( Czech Republic ).
- Also, three of the four tektite strewnfields have been linked by their age and chemical and isotopic composition to known impact craters.
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