Sections showing development along fissures from Ahmeek mine to Pennsylvania mine, Keweenaw counyy, Mich.

類似資料

• Sections showing development along mass fissure, Ahmeek mine
  著者:: Estados Unidos Geological Survey
  出版事項: ([19--])
• Development of Minesota fissure and associated Lodes of Michigan mine
  著者:: Estados Unidos Geological Survey
  出版事項: ([19--])
• Longitudinal sections of Allouez conglomerate and Keweenaw mine
  著者:: Estados Unidos Geological Survey
  出版事項: ([19--])
• Geologic sections of Quincy mine, T. 55 N., R. 34 W., Houghton County, Mich.
  著者:: Estados Unidos Geological Survey
  出版事項: ([19--])
• Longitudinal section of forest Lode, evergreen mine
  著者:: Estados Unidos Geological Survey
  出版事項: ([19--])