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- Keyword
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- Beach ridges--Minnesota; Riparian areas--Minnesota--Management; Ecosystem management--Minnesota; Biodiversity conservation--Minnesota (1)
- Coalbed methane--Powder River Basin (Wyo and Mont); Sandstone--Powder River Basin (Wyo and Mont); Gas fields--Powder River Basin (Wyo and Mont) (1)
- Paleoclimatology; Temperature measurements; Climatology; Milankovitch cycles (1)
Articles 1 - 3 of 3
Full-Text Articles in Physical Sciences and Mathematics
Methane Potential Of Upper Fort Union Formation Sandstones, Campbell County, Wyoming, Michael J. Blackstone
Methane Potential Of Upper Fort Union Formation Sandstones, Campbell County, Wyoming, Michael J. Blackstone
Theses and Dissertations
Coalbed methane has been produced from the coalbeds of the Upper Fort Union Formation in the Powder River Basin for many years. The sandstones associated with these coals have also proven to be gas-charged, but industry has done little with the sandstones thus far. The purpose of this study is to determine the paleoenvironrnent responsible for the deposition of the coal and sandstone bodies in an attempt to locate gas-charged sandstone bodies in the Tongue River Member of the Fort Union Formation.
The 30-mile by 90-mile study area was chosen because of the presence of a decrease in thick coalbed …
Developing A Rapid Method For Assessing The Physical Stability Of Streams In Minnesota's Agassiz Beach Ridges, Abigail V. Franklund
Developing A Rapid Method For Assessing The Physical Stability Of Streams In Minnesota's Agassiz Beach Ridges, Abigail V. Franklund
Theses and Dissertations
This thesis assessed the physical characteristics and stability of selected western Minnesota streams that cross the eastern beach ridges of glacial Lake Agassiz. Stream and river channels in this area host unusually diverse aquatic habitat and biodiversity, but incompatible land use along channels and in watersheds impair their quality and function. Previous rapid assessment protocols have been developed for stream attributes and stability, but these methods have been developed elsewhere in the United States and are not necessarily appropriate for western Minnesota’s unique geology and landscape.
A rapid reconnaissance method was developed to assess stream conditions using an integrated numerical …
Resolving Terrain Effects In Borehole Temperature Profiles, Shannon M. Heinle
Resolving Terrain Effects In Borehole Temperature Profiles, Shannon M. Heinle
Theses and Dissertations
The study of borehole paleoclimatology aids scientists in determining past climate changes and in understanding current climate trends. Accurate borehole temperature logs are necessary to obtain a useful temperature profile. However, as many climate workers have discovered, borehole temperature profiles can have many causes of inaccuracy. Uncertainties associated with borehole data include errors stemming from temperature measurement, depth measurement, thermophysical property measurements, and terrain effects. Terrain effects include topography, changes in land cover over time, direct and diffused sun radiation, and groundwater flow.
This study focused on specific terrain effects influencing borehole temperature profiles in the United States borehole dataset …