dì / zhì / xué / jiā / rèn / wéi / guī / lǚ / zhì / yán / shí / jiào / qīng / cháng / jiàn / yú / dà / lù / dì / qiào / zhōng地质学家认为,硅铝质岩石较轻,常见于大陆地壳中。Geologists believe that sialic rocks are relatively light and are commonly found in the continental crust.