直布罗陀岩山(Rock of Gibraltar),高1396英尺,系由完整的地表岩层——侏罗纪时期的石灰石构成,坐落于伊比利亚半岛,又名“大力神之柱”。它是大约5500万年前非洲板块与欧洲板块猛烈碰撞的产物。石灰岩会被雨水溶解,因此直布罗陀巨岩的内部形成了100多个洞穴。多年以来,这座岩山一直被英国人用 Rock of Gibraltar, 1396 feet high, is composed of a complete surface rock formation - the Jurassic limestone, located in the Iberian Peninsula, also known as the “Column of Hercules.” It was a product of a violent collision between Africa and the European plate some 55 million years ago. The limestone is dissolved by the rain, so more than 100 caves are formed in the interior of the Gibraltar rock. For years, this rock has been used by the British