outcrop [ˈaʊtkrɑ:p]

例句:

• Practically every rock outcrop shows numberless joints.
  实际上所有岩石的露头都显示许许多多的节理.
  
• A little way below the ridge was an outcrop of rock that made a rough shelter.
  山脊下方不远处有一块露出地面的岩石，大致形成了一个掩蔽处。
  
• The Main Chromitite Seam and the Merensky Reef do not outcrop well.
  主铬铁岩矿层及麦仑斯基矿层出露不好.
  
• The second outcrop is called "Kirkwood".
  来自BBC
• The outcrop is thought to contain clays, similar to a rock recently drilled by Curiosity.
  来自BBC
• The ancient rocks found by Opportunity occur as a light-toned outcrop known as Whitewater Lake.
  来自BBC