几亿年前的古地中海,面积要比现在大得多,那是一片广阔且温暖的浅海,大量的珊瑚在那里生长、死亡、堆积。后来,经过漫长的化学沉积,形成巨厚的石灰岩。随着板块不断运动,地中海的面积逐渐缩小。有的石灰岩受板块挤压抬升后出露于地表,经流水长期溶蚀,在地中海沿岸尤其是巴尔干半岛上形成大量的喀斯特地貌。也有一些石灰岩受到岩浆的高温高压作用,浴火 The ancient Mediterranean, hundreds of millions of years ago, is much larger than it is today. It is a vast and warm shallow sea where large numbers of corals grow, die and pile up. Later, after a long chemical deposition, the formation of huge limestone. As the plate moves continuously, the area of ​​the Mediterranean shrinks. Limestone rocks are extruded and lifted by plate so that they are exposed to the earth’s surface for a long time. After long-term corrosion by water, a large number of karst landforms are formed on the Mediterranean coast, especially the Balkan Peninsula. There are also some limestone by the magma under high temperature and pressure, bath fire