| 单词 | baddeleyite |
| 例句 | The analysis revealed that the baddeleyite formed over 4.3 billion years ago. Giant meteorite impacts formed parts of moon's crust, scientists reveal 2020-05-12T04:00:00Z The study analyzed some of the oldest known Martian minerals, looking at zircon and baddeleyite grains seen in Martian meteorites, utilizing electron microscopy and atom probe tomography. Mars may have hosted life earlier than Earth did, study says 2019-06-26T04:00:00Z He also noted the presence of micron-scale grains of baddeleyite, a highly durable zirconium-rich mineral that is often used in uranium–lead dating. Solved: The Mystery of the Martian Meteorites 2013-07-26T18:45:00.760Z The impact launched partially melted fragments of the crystallized lava up through the atmosphere and into space, glossing the baddeleyite grains with rims of molten zircon. Solved: The Mystery of the Martian Meteorites 2013-07-26T18:45:00.760Z Using a sophisticated scanning electron microscope, Moser and his colleagues first mapped the baddeleyite grains within a thin cross section of NWA 5298, then closely studied each one for clues about its past. Solved: The Mystery of the Martian Meteorites 2013-07-26T18:45:00.760Z The young baddeleyite formed nearly 200 million years ago when the shergottites’ source rock crystallized on or near the Martian surface. Solved: The Mystery of the Martian Meteorites 2013-07-26T18:45:00.760Z Those baddeleyite grains proved to be keystones for Moser’s subsequent investigations, which found them to be only hundreds of millions of years old. Solved: The Mystery of the Martian Meteorites 2013-07-26T18:45:00.760Z |
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