The geology of Europa
The geology of Europa
复制标题
欧罗巴的地质
DOI：
--
复制
发表时间：
1979
期刊：
影响因子：
--
通讯作者：
L. Soderblom
中科院分区：
文献类型：
--
作者：
B. Lucchitta;L. Soderblom
详细介绍了木卫二的地图单元和线条，并讨论了该卫星的地质过程、历史和厚冰和薄冰模型。结论是，木卫二缺乏水平分层地壳的证据；其地质特征似乎是地壳的破裂和对冰壳的侵入。地表由平原和斑驳的地形组成，前者更古老。在全球和地表尺度上，无数笔直和弯曲的线条、条纹、条纹和条纹横跨木卫二表面。大多数线条似乎与地壳中的裂缝有关。可以看到直径在10到30公里范围内的五个新陨石坑。暗点、条纹和条纹似乎取代了地壳的一部分，这表明物质是从下面的硅酸盐岩石圈运往地表的。木卫二表面重叠的低密度陨石坑表明，木卫二表面大约有1亿年的历史。
The map units and lineations of Europa are detailed, and the geologic processes, and history, and thick and thin ice models of the satellite are discussed. It is concluded that Europa lacks evidence of a horizontally stratified crust; the geology appears characterized by disruption of the crust and intrusions into an icy shell. The surface consists of plains and mottled terrain, the former being older. Numerous straight and curved lineations, streaks, stripes, and bands cross EuropA's surface on a global and surface scale. Most lineations appear related to fractures in the crust. Five fresh craters in the 10 to 30 km diameter range are visible. The dark spots, stripes, and bands that appear to have replaced sections of the crust suggest that material was transported to the surface from the subjacent silicate lithosphere. The apparent low density of craters superposed on Europa's surface suggests that the surface is about 100 million years old.