勒地理上，地壳（英语：Crust）是指一个星球最外层个实心薄壳，可以用化学方法拿渠搭地幔区别。地球，月球，水星，金星，火星搭子其它星球个地壳大部分都是由火成岩形成个，星球个地壳比起渠拉个地幔有更多个不相容成分。
Wikiwand in your browser!
Seamless Wikipedia browsing. On steroids.
Every time you click a link to Wikipedia, Wiktionary or Wikiquote in your browser's search results, it will show the modern Wikiwand interface.
Wikiwand extension is a five stars, simple, with minimum permission required to keep your browsing private, safe and transparent.
