Browsing Geologic Atlas of the United States by Subject

Now showing items 1-20 of 110

      Subject
      Paleogene - Andesite porphyry; Syenite porphyry [1]
      Paleogene - Arago formation [1]
      Paleogene - Arikaree formation [1]
      Paleogene - Arikaree formation; Brule clay; Chadron sandstone [1]
      Paleogene - Brule clay [1]
      Paleogene - Brule clay; Chadron formation [1]
      Paleogene - Brule clay; Chadron sand [1]
      Paleogene - Brule formation; Chadron formation [1]
      Paleogene - Burns latite; Eureka rhyolite; Picayune andesite; Silverton volcanic series undifferentiated; San Juan tuff; Telluride conglomerate; Potosi volcanic series [1]
      Paleogene - Calico Peak porphyry [1]
      Paleogene - Castle Rock conglomerate; Dawson arkose [1]
      Paleogene - Chadron formation [1]
      Paleogene - Choptank formation; Calvert formation; Nanjemoy formation; Aquia formation [1]
      Paleogene - Cohansey sand; Kirkwood formation [1]
      Paleogene - Difficulty Creek latite; American Flat latite; Cimarron Creek latite; Potosi volcanic series; Henson tuff; Burns tuff; San Juan tuff; Telluride conglomerate [1]
      Paleogene - Ellensburg formation; Guye formation; Manastash formation; Roslyn formation; Naches formation; Swank formation; Howson andesite; Snoqualmie granodiorite; Keechelus andesitic series; Yakima basalt; Taneum andesite; Teanaway basalt; Kachess rhyolite [1]
      Paleogene - Ellensburg formation; Manastash formation; Roslyn formation; Swank formation; Taneum andesite; Teanaway basalt [1]
      Paleogene - Florissant lake-beds [1]
      Paleogene - Fort Union formation; Lance formation [1]
      Paleogene - Huerfano formation; Cuchara formation; Poison Canyon formation; Metamorphosed Eocene [1]