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Showing 1 to 20 of 98 for “"Red River"”.
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The upper Red River Formation (Ordovician) in western North Dakota
<p>The upper Red River Formation in Western North Dakota consists of cyclic sedimentary rocks having four main porosity zones which contain most of the oil and gas found in the formation. It was divided into three distinct units that were traced throughout western North Dakota on mechanical logs. …
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Reservoir Characterization of the Clarksville Formation in Red River County, Texas
… using integrated core and well log analyses in Red River County, Texas. Three cores (Lennox Unit #1, Reeder Oil Unit #2, and Reeder Oil Unit #7) were analyzed for lithology, mineralogy, porosity, permeability, and fluid saturation, and correlated with 137 well logs to map formation thickness and …
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Ground-Water conditions in the Southern Red River Valley, North Dakota
… Small to copious amounts of water are recovered from glacial drift aquifers, depending on the lithologic and hydrologic characteristics of the associated sand and gravel deposits. Sandy units of the Sheyenne delta, a Lake Agassiz deposit, have high transmissibility and contain considerable …
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Maximum Levee Height as a Function of Red River Valley Foundation Sediments
… Equation. Allowable levee heights with desired construction safety factors are less than heights necessary to protect against a 1997 magnitude flood. </p>
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Fly Ash as a Soil Amendment in the Northern Red River Valley
… of combustion byproducts are produced and captured each year in the United States alone. Disposal of this extraordinary amount of waste is difficult and costly. Finding ways to turn this waste into a resource has been necessary, and at times, profitable.</p> <p>The past fifty years has witnessed …
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Water First : a political history of hydraulics in Vietnam's Red River Delta
… large-scale hydraulic infrastructure in the Red River delta has relied upon the creation of a hydraulic bargain between the state and water users. This is in contrast to Wittfogel's theory of the hydraulic state, insofar as developing hydraulic infrastructure has depended upon the active …
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Water First : a political history of hydraulics in Vietnam's Red River Delta
… large-scale hydraulic infrastructure in the Red River delta has relied upon the creation of a hydraulic bargain between the state and water users. This is in contrast to Wittfogel's theory of the hydraulic state, insofar as developing hydraulic infrastructure has depended upon the active …
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Distribution, Relative Abundance, and Reproductive Seasonality of Larval Fish in the Red River
… and spatial variation in larval fishes in the Red River, samples were collected from the Red River and North Dakota tributaries using ichthyoplankton nets. Collections were made during the spring and summer of 1999, 2000, and 2001. Spatial patterns were examined to uncover any variation in a …
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The Historical Geography of Swiss Settlers at the Red River Colony 1821-1826
… of free land and a better life especially lured many Europeans to North America. When going to a new unsettled area, emigrants have a tendency to go in small, isolated cluster groups which share a primary allegiance to a particular country or province. Such was the case with the Swiss who …
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Depositional and paragenetic controls on porosity development, upper Red River Formation, North Dakota
<p>The upper Red River Formation in North Dakota comprises a subtidal/intertidal facies overlain by three evaporitic sequences of four lithologic units each, labeled "P," "R," and "F" in stratigraphic order. Four porosity zones are recognized in the upper Red River: the subtidal/ intertidal facies …
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Numerical Methods for Parameter Estimation and Optimal Control of the Red River Network
… estimation, and the optimal control of the Red River system are presented. The model of the Red River system is based on the Saint-Venant equation system, which consists of two nonlinear first-order hyperbolic Partial Differential Equations (PDE) in space and in time. In general a system of …
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Cenozoic tectonic and geomorphic evolution of the Red River Region, Yunnan Province, China
… region of maximum dip-slip displacement on the Red River fault. This thesis also develops a new cosmogenic tool for quantitative landscape analysis: using depth dependence data for multiple cosmogenic nuclides from a single site to constrain an erosion history. This method is applied in the Dry …
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Economic Impact of Rock Climbing on the Communities Surrounding the Red River Gorge, Kentucky
… and protect valuable natural resources. The Red River Gorge area hosts thousands of climbers each year and contains over 1,000 climbing routes in ten separate areas with an array of amenities for lodging, food, and other recreation. However, no research has been completed to determine the …
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Lateral Migration of the Red River, in the Vicinity of Grand Forks, North Dakota
<p>River channels are dynamic landforms that play an important role in understanding the alluvial changes occurring within this area. The evolution of the Red River of the North within the shallow alluvial valley was investigated within a 60 river mile area north and south of Grand Forks, North …
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The Ecology Of Host-Seeking Mosquitoes Within The Red River Valley Of Central North Dakota
… are taxing for people and wildlife alike in the Red River Valley (RRV). During the summer massive numbers of mosquitoes swarm the RRV, yet little is known about the ecology and biology of the mosquito species that inhabit this area. This research will help to fill some of those knowledge gaps by …
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The Red River Flood Of 1997: The Role Of Government Agencies In The Flood Plain
<p>This study attempts to identify the roles of three federal agencies in the Grand Forks Flood of 1997. The three agencies were selected for the scope of their impact on the disaster as well as their impact on the community. The United States Army Corps of Engineers, National Weather Service, and …
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The Vascular Flora Of The Red River Gorge In Powell, Menifee, And Wolfe Counties Kentucky
<p>The Red River Gorge (RRG) is a 26,283 ha natural area within Menifee, Powell, and Wolfe counties of Kentucky. This area is in the Cumberland Plateau Physiographic Section which is a southern subsection of the Appalachian Plateau Physiographic Province. It is a mecca of outdoor recreation, …
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Kaolinitic weathering zone on Precambrian basement rocks, Red River Valley, eastern North Dakota and northwestern Minnesota
<p> A suite of 26 drill cores recovered from the Red River Valley Drilling Project has provided new information on the Precambrian basement of eastern North Dakota and northwestern Minnesota. Basement rocks in this area consist of intermediate to felsic coarse-grained massive or gneissic rocks, and …
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Battle Mound: Exploring Space, Place, and History of a Red River Caddo Community in Southwest Arkansas
… such as domestic or community space, can be compared to ethnographic and archaeological data concerning Caddo community structure and landscape use. The research is formulated around three research questions related to spatial organization and settlement patterning, intrasite behavioral practices, …
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