Global ETD Search

Petrology of the Sentinel Butte Formation (Paleocene), North Dakota

Forsman, Nels F.

<p> Sedimentary materials of the Sentinel Butte Formation have been petrographically examined using optical and scanning electron micro scope/microprobe techniques. The formation consists of fine-grained materials which generally are classified mineralogically as volcanic litharenites or …

nodak Repository record for Petrology of the Sentinel Butte Formation (Paleocene), North Dakota (opens in a new tab)

Proterozoic structures in north-central North Dakota: a gravity study

Luther, Kathryn C.

… Craton and the Trans-Hudson orogenic belt in north-central North Dakota between latitude 48 and 49 degrees north and longitude 100 and 102 degrees west, using gravity modeling. Major structural and geochronologic boundaries beneath the eastern flank of the Williston Basin in North Dakota and …

nodak Repository record for Proterozoic structures in north-central North Dakota: a gravity study (opens in a new tab)

Paleontology and stratigraphy of the Niobrara Formation (Upper Cretaceous) of eastern North Dakota with emphasis on the calcareous nannoplankton

Reiskind, Jeremy

… Upper Cretaceous Niobrara Formation in eastern North Dakota consists of calcareous shales, chalks, and shaly chalks. The formation was studied from surface exposures, cores, and well logs. The Niobrara is 62 feet (19m) to 272 feet (83 m) and is thickest to the northeast, in a central linear …

nodak Repository record for Paleontology and stratigraphy of the Niobrara Formation (Upper Cretaceous) of eastern North Dakota with emphasis on the calcareous nannoplankton (opens in a new tab)

"Scoria" of North Dakota

Sigsby, Robert J.

nodak Repository record for "Scoria" of North Dakota (opens in a new tab)

Depositional environments and diagenesis of the Mississippian Bottineau interval (Lodgepole) in North Dakota

Heck, Thomas J.

<p>Bottineau interval rocks from the North Dakota part of the Williston Basin comprise a single marine transgression/regression cycle, Early Mississippian (lower Scallion subinterval) marine transgression from the restricted depositional environment of the Bakken Formation resulted in normal marine …

nodak Repository record for Depositional environments and diagenesis of the Mississippian Bottineau interval (Lodgepole) in North Dakota (opens in a new tab)

Petrology of sandstones from the Bullion Creek and Sentinel Butte Formations (Paleocene), Little Missouri Badlands, North Dakota

Steiner, Mark A.

<p>The mineralogy and petrology of sandstones of the Paleocene Bullion Creek and Sentinel Butte Formations were studied from exposures in the Little Missouri River Badlands in Billings, Golden Valley, and McKenzie Counties, North Dakota. Field work was conducted in the summer of 1977. Stratigraphic …

nodak Repository record for Petrology of sandstones from the Bullion Creek and Sentinel Butte Formations (Paleocene), Little Missouri Badlands, North Dakota (opens in a new tab)

Bivalve associations of the Cannonball Formation (Paleocene, Danian) of North Dakota

Lindholm, Rosanne M.

… Danian) is best exposed in southwest-central North Dakota. Here, two major lithotypes, mudstone and sandstone, occur. In this area, the Cannonball can be informally subdivided into four lithologic units: lower (primarily thinly-bedded sandstone and mudstone), lower-middle (sandstone), …

nodak Repository record for Bivalve associations of the Cannonball Formation (Paleocene, Danian) of North Dakota (opens in a new tab)