卡帕多西亚的童话烟囱和窑洞，土耳其 Fairy chimneys and cave dwellings in Cappadocia, Türkiye (© Storm Is Me/Shutterstock)

卡帕多西亚的童话烟囱和窑洞，土耳其 Fairy chimneys and cave dwellings in Cappadocia, Türkiye (© Storm Is Me/Shutterstock)

快看，这是沉积岩哦 Sedimentary, my dear

国际岩石日

今天是国际岩石日，我们要讨论的是花岗岩、石灰石和板岩。岩石有三种类型：火成岩是由凝固的岩浆和熔岩形成的；沉积岩是由沉积颗粒（如沙子）层层堆积而成；变质岩是其他岩石受热和受压后形成的。

今天的图片带我们来到位于土耳其中部的卡帕多西亚，这里有一种被称为“精灵烟囱”的石质结构。这些锥形石柱由凝灰岩制成，而凝灰岩正是火山灰和碎屑堆积而成的沉积岩。该地区的古代居民在岩石侧面雕刻了房屋和教堂。此外，该地区的地下城也很有名，这些地下城是从凝灰岩中凿出来的，为人们提供了一个安全的庇护场所。这只是历史上人类对岩石的众多用途之一。

International Rock Day

Are you ready to make some noise? Wait, not that sort of rock. Today, we're all about granite, limestone, and slate. There are three types of rock: igneous rocks formed from magma and lava; sedimentary rocks made from a mixture of particles like sand and mud; and metamorphic rocks that are the result of heat and pressure on other kinds of rock.

Today's image takes us to the 'fairy chimneys' of Cappadocia in central Türkiye. These cone-shaped pillars are made of tuff, a sedimentary rock formed from volcanic ash and debris. In the sides of the rocks, ancient residents carved homes and churches. The area is also famous for its underground cities, which were cut out of the tuff to provide shelter and safety. This is just one of the many uses for rocks that humans have come up with throughout history.