Police have been 'mining' the tapes 'for' information. [=they have been listening to the tapes in order to get information from them]
The area was soon filled with prospectors who were 'mining for' gold.
He works in 'mining'.
(..) Stronger than a hundred men! Born of cold and winter air And mountain rain combining. This icy force both Foul and Fair. Has a frozen heart worth mining. Cut through the heart, Cold and Clear. Strike for love and strike for fear. There's beauty and there's Danger here. Split the ice apart! (..)2013 Frozen
(..) This icy force both foul and fair. Has a frozen heart worth mining. Cut through the heart, Cold and Clear. Strike for love And Strike for fear. See the beauty Sharp and Sheer. Split the ice apart. And break the frozen heart. (..)2013 Frozen