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Characterization Of Sentinel Butte Petrified Wood And Host Lithology Associations, Todd Lawrence Holweger
Characterization Of Sentinel Butte Petrified Wood And Host Lithology Associations, Todd Lawrence Holweger
Undergraduate Theses and Senior Projects
Large quantities of petrified wood occur in the Paleocene Sentinel Butte Formation in western North Dakota. An examination of this petrified wood has provided information about modes and degrees of fossilization, silica phases present, organic structure preservation, and parent tree type. In the study site, fossilized tree stumps were concentrated along one continuous clay horizon. Twenty petrified wood samples were obtained. Five representative samples were chosen for thin section characterization. Microscopic analyses revealed well preserved plant structures including rays, tracheids, and growth rings. These structures were suitable for identifying parent tree type, which was determined to be a gymnosperm. Silica …
Physical Description And Significance Of The Tills At The Dobmeier Pit Near Park River, North Dakota, Robert A. Burrows
Physical Description And Significance Of The Tills At The Dobmeier Pit Near Park River, North Dakota, Robert A. Burrows
Undergraduate Theses and Senior Projects
This study was conducted to describe an exposure of tills and correlate them with the known sequence of tills elsewhere. The Dobmeier pit is a large spring discharge site approximately 3 miles west of Park River, North Dakota (Edinburg Quadrangle, T157N, R56W, Sec. 23, 1/4SE, 1/4NW, 1/4SE). It is between 50 and 75 meters across and 15 to 20 meters deep. It is located on the east edge of the Edinburg Moraine and the south side of the Park River valley. Exposed at the base is a cross-bedded sand and gravel unit. Above is a compact gray till, which is …
Chemical And Physical Characteristics Of Saline Soils In Grand Forks County North Dakota, Sherry D. Samson
Chemical And Physical Characteristics Of Saline Soils In Grand Forks County North Dakota, Sherry D. Samson
Undergraduate Theses and Senior Projects
Saline soils reduce the productivity of over 80,000 hectares, or 23% of the land area, in Grand Forks County, an agricultural county in eastern North Dakota. A geochemical analysis was completed on soils from two salt-affected areas to determine if the salinity is depression-focused in saline spring areas and dominated by ground-water discharge, or landscape-wide and controlled by saline flushing and evapotranspiration. The areas chosen for study were an ephemerally wet, cultivated farm field and Kellys Slough, a perennial wetland. Two soil borings were completed at each site with samples taken in 15-cm increments to a depth of approximately 1 …
Characterization Of A Riparian Wetland Renwick Reservoir, Pembina County, Nd, Jo Ann Harrer, Constance Holth
Characterization Of A Riparian Wetland Renwick Reservoir, Pembina County, Nd, Jo Ann Harrer, Constance Holth
Undergraduate Theses and Senior Projects
Renwick Reservoir, on the Tongue River near Cavalier, North Dakota, was constructed in 1962 as part of a flood control project. The cost at completion was about $350,000. The reservoir was built assuming a 50-year life expectancy. North Dakota's W ater Quality Assessment Plan concludes that sediment accumulation has already diminished storage capacity and negatively affected recreational uses. Primary problems include pollutants consisting of nutrients, sediment accumulation, turbid water and organic enrichment. Forty-one percent of the sediments deposited are in the newly-formed riparian wetland at the headwaters of the reservoir. This problem illustrates a need to characterize wetlands in reservoirs. …