穹丘的横断面为圆形或卵圆形。
穹丘的横断面为圆形或卵圆形。
它也是在一个火山穹丘硬化和逐步侵蚀中，剥离出洋葱状岩石层形成的。
It formed when a volcanic dome hardened and gradually eroded, exposing the onion-like layers of rock.
尽管它看起来像是一个陨石撞击坑，它是在一个火山穹丘硬化和逐步侵蚀中，剥离出洋葱状岩石层的结果。
Although it resembles an impact crater, it formed when a volcanic dome hardened and gradually eroded, exposing the onion-like layers of rock.
从南坡坠落的拖尾熔岩，形成巨大的分散式沉积物，表明熔岩穹丘最近发生了崩塌，形成巨大的岩屑崩落现象。
The hot trail of material descending to the south forms a large distributed deposit, indicating a recent collapse of the lava dome and formation of a large debris avalanche.
应用推荐