n.破火山口(巨大碗口形火山凹地)

原形：caldera复数：calderas

The Yellowstone Caldera is one of the largest active supervolcanoes in the world.
黄石火山口是世界上最大的活火山口之一。
After the eruption, the volcano formed a caldera that now serves as a lake.
火山喷发后形成了一个火山口湖。
Scientists believe that the Toba catastrophe theory is linked to the formation of the Toba Caldera.
科学家认为通巴大灾难理论与通巴火山口的形成有关。
Lava from the eruption flowed into the caldera and solidified, creating a new island.
喷发的熔岩流入火山口并固化，形成了一个新的岛屿。
The caldera at Mount St. Helens was created during its 1980 eruption.
圣海伦斯火山的火山口是在1980年爆发时形成的。
Tourists often hike around the rim of the caldera for breathtaking views of the surrounding landscape.
游客经常在火山口边缘徒步，欣赏周围令人叹为观止的风景。
The caldera of Crater Lake National Park in Oregon is over a mile deep.
俄勒冈州火山口国家公园的火山口深度超过一英里。
Researchers found evidence of past eruptions in the sediment layers within the caldera.
研究人员在火山口内的沉积层中发现了过去喷发的证据。
A caldera collapse can lead to massive tsunamis, as seen in the case of Krakatoa in 1883.
火山口塌陷可能导致大规模海啸，如1883年的喀拉喀托火山。
The caldera at Lake Tahoe is believed to have been formed by glacial erosion rather than volcanic activity.
湖 Tahoe 的火山口据信是由冰川侵蚀而不是火山活动形成的。