意大利的维苏威、日本的富士山、印度尼西亚的葛林芝、登波,都是以“火山”著称于世的。但是,读者们也许不知道,自然界中还有另一种“火山”,它喷出的不是地壳内部的熔岩热液、高压的气体和火山灰,而是大量的泥块和泥质物。地质学家们把这种“火山”称作“泥火山”。这种“泥火山”外形跟一般火山一样,也是圆锥形 Italy’s Vesuvius, Japan’s Mount Fuji, Indonesia’s Green’s, Dengbo are known as “volcanoes.” However, readers may not know that there is another “volcano” in nature that does not emit lava hydrothermal fluids, high-pressure gas, and volcanic ash inside the earth’s crust, but rather massive mud and mud. Geologists call this “volcano” a “mud volcano.” This “muddy volcano” has the same conical shape as ordinary volcanoes.