月球陨石欣赏.docVIP

[转载]月球陨石欣赏 Glass spherules are formed in two ways. 玻璃球体形成两种方式。 Some are formed when a meteorite impact melts material, the melt is ejected from a crater, and small globs of the melt solidify before they land. 有些是形成一个陨石撞击熔化材料时，熔体从火山口喷出，融化的小水珠，巩固他们的土地 。 Such melt bombs are usually spherical and range in size from much less than a millimeter to about a centimeter. 这种融化炸弹通常是球形的大小和范围比约一厘米毫米少得多。 Other glassy spherules derive from magma that is violently erupted from volcanoes - a fire fountain. 其他玻璃状球体来自岩浆从火山猛烈爆发- “火喷泉”。 On Earth, wed call such material volcanic ash. 在地球上，我们会打电话等材料的火山灰 。 On the Moon, its usually called pyroclastic glass. 在月球上，它通常被称为火山碎屑玻璃。 In both cases, molten rock cools and solidifies above the Moons surface, leading to glassy spherules. 在这两种情况下，熔岩冷却和巩固了在月球表面上方，导致玻璃状球体。 The reason agglutinates and glass spherules are special is that both lithologies can only be produced at or above the Moons surface. 烧结和玻璃小球是特殊的原因是，都岩性只能在月球表面或以上生产 。 一个岩相薄片阿波罗16月壤角砾岩60016的照片 。 The longest dimension is 16 mm. 最长的尺寸是16毫米。 A few glass spherules and are evident. 几个玻璃球粒和是显而易见的。 Agglutinates are hard to find in regolith breccuas and there may be none in this section. 烧结是很难找到壤breccuas的，并有可能成为在本节中没有。 除了 ??陨石撞击双双突破岩和胶的岩石碎片重新结合在一起。 During impacts of meteorites that form craters of hundreds of meters in diameter or larger, the material just below the point of impact melts and some even vaporizes. 在影响，形成几百米直径或更大的陨石坑的陨石，撞击点正下方的材料融化，有的甚至汽化 。 Material that is deeper may just shatter in place, creating rock fragments. 可能只是动摇材料，是更深的地方，创造岩石碎片。 When the shock wave associated with the impact passes through fine grained surface material, the material can be compressed into a rock, something like making a snowball by squeezing snow in your hands. 当冲击波影响的推移，通过细粒度的表面材料的物质可以被压缩成岩石，像滚雪球挤压雪在你的手中的东西 。 If the resulting rock contains glass spherules or agglutinates, it is called a regolith breccia . 如果所产生的岩石中含有玻璃小球或烧结，它被称为月壤角砾岩。 If it consistent only of fragmental material with no glass spherules