A Geoscience Digital Image Library

TitleNiobrara Formation in Northeast North Dakota
DescriptionThe buff-colored shale is part of the Niobrara Formation which consists of light-gray to yellowish-tan, blocky, calcareous clay. The Niobrara Formation documents a major marine transgression or onlap of the sea, resulting from a high eustatic sea level and crustal subsidence.
LocationUSA ▹ North Dakota ▹ Cavalier. Near Vang. Vang Quadrangle.
PhotographerJoseph Hartman. 2002-05-07.
CollectionJoseph Hartman C9397.
Key words02e, Niobrara, shale
Tech details629 KB. Kodachrome, TIFF.
GeoDIL number2856