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Showing 1 to 18 of 18 for “"Ouachita Mountains"”.
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Structural Geology of the Caddo Gap Area, Ouachita Mountains, Arkansas
… of the Benton Uplift, the orogenic core of the Ouachita Mountains. Recent field mapping focused on delineating stratigraphic and structural relationships in the southern part of the quadrangle to improve existing reconnaissance-scale maps of the area. New structures were discovered that provide …
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Reproductive Patterns of Three Plethodon Salamanders Endemic to the Ouachita Mountains
… the Caddo Mountain salamander, Plethodon ouachitate, the Rich Mountain salamander and Plethodon fourchensis, the Fourche Mountain salamander were made in 1985 and 1986. Reproductive patterns, fecundity and length-weight relationships were examined. When compared to male SVL, female P. …
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Field-based Constraints on the Origin of the Benton Uplift, Ouachita Mountains
<p>The Ouachita Mountains are an east-west trending fold-and-thrust belt exposed in west central Arkansas and southeastern Oklahoma. The Mississippian-Pennsylvanian Ouachita orogeny occurred when the Sabine arc terrane collided during south-facing subduction, during closure of the Cambrian passive …
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Sedimentary petrology and provenance of the upper Jackfork Sandstone (Morrowan), Ouachita Mountains, Arkansas, U.S.A.
Made available in DSpace on 2017-11-30T21:01:08Z (GMT). No. of bitstreams: 2 803026.pdf: 5872017 bytes, checksum: 14700ecf530d26c68af962c8ddff9ae8 (MD5) license.txt: 4813 bytes, checksum: 715c4321821a960fa1a1e91d2ac7ebce (MD5) Previous issue date: 1984
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The use of right of ways by primary burrowing crayfishes in the Ouachita Mountains Ecoregion of Arkansas
… habitat models for these two species in the Ouachita Mountains Ecoregion (OME) of western Arkansas in the spring of 2014 and 2015. My first objective was to determine the fine-scale habitat preferences of F. harpi and P. reimeri in relation to their occurrence in roadside ditches. My analysis …
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Structural Geology of The Brady Mountain Area, Ouachita Mountains, Arkansas: Integrating Field Mapping, Geospatial Techniques, Photogrammetry And 3D Modeling For Structural Analysis
<p>Much of the Ouachita orogenic belt, representing the deformed Paleozoic rocks flanking the southern margin of the North American craton, is buried beneath post-orogenic Mesozoic and Tertiary sediments composing the Gulf Coastal Plain. The Ouachita Mountains of Arkansas and Oklahoma are the …
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Comparative Mitochondrial DNA Sequence Diversity in Isolated and Open Populations of Southern Flying Squirrels
… of Southern flying squirrels were studied in the Ouachita Mountains of Arkansas to assess the impact of population subdivision-due to island formation--on the population genetics of Glaucomys volans. One island, one mainland, and one open population were investigated. A 367 nucleotide …
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Flight Period and Species Composition of Sirex (Hymenoptera: Siricidae) and Associated Deladenus (Nematoda: Neotylenchidae) within Arkansas Pine Forests
… ecologically distinct regions of Arkansas: Ozark Mountains, Ouachita Mountains, and Gulf Coastal Plain. Specimens collected in these traps were identified and later dissected for presence of Deladenus. One species of Sirex was collected, Sirex nigricornis F., and a single species of Deladenus was …
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Structural Interpretation of an Alkaline-Carbonatite Complex Using Gravity and Magnetic Methods at Magnet Cove, Arkansas
… Magnet Cove alkaline-carbonatite complex in the Ouachita Mountains of south-central Arkansas could be a valuable resource for rare earth elements, though it has not yet been thoroughly studied using geophysical methods, and existing geophysical models simplify its diverse nature. Prior to this …
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Good Neighbors: Agents of Change in the New Rural South, 1900 to 1940
… Howard County is located in the foothills of the Ouachita Mountains, and Union County is located in the foothills of the Appalachian Mountains. This study identifies who in the rural communities was most responsible for bringing positive changes to their communities, questions what motivated their …
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Sedimentary Petrology of the Hartshorne Formation, Southeastern Arkoma Basin, Arkansas
… across central Arkansas immediately north of the Ouachita orogenic belt and south of the Boston Mountains. The unit, composed of massive to cross bedded sandstone ranging to 150m in thickness, was deposited by a west-flowing river system that extended from central Arkansas to southeastern …
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Population Dynamics of Ouachita Dusky Salamanders (Desmognathus brimleyorum) in a Managed Forest Landscape
… on a stream-dwelling salamander endemic to the Ouachita Mountains, Desmognathus brimleyorum. We specifically focused on two possible mechanisms of salamander abundance shifts, survival and movement. We conducted a capture-mark-recapture (CMR) study at three streams within intensely managed pine …
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Amphibian and Reptile Community Responses to Forest and Riparian Disturbance
… a multi-species occupancy approach within the Ouachita Mountains, Arkansas, and along the Broad River in South Carolina, USA. We used a hierarchical Bayesian community occupancy model to estimate species richness and species-specific occupancy responses to SMZ and overstory characteristics. In …
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Joint modeling receiver functions and autocorrelograms to estimate crustal structure in the presence of deep sediments.
… north to south from ~47 km to ~26 km, with the Ouachita Mountains marking boundary in average crystalline crustal Vp values, potentially indicating compositional differences. Our third study models crustal structure in the Bengal Basin. This >20 km deep sedimentary basin lies between the Indian …
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The Structural Analysis of Enola and Greenbrier, Arkansas Earthquake Swarms: Cause and Effect?
… swarm in the eastern Arkoma basin, north of the Ouachita Mountains, the first waste water disposal well became operational in April 2009, and a total of six disposal wells are known to have been operating between 2009 and 2011. The deepest of these was the Wayne Edgmon well, which was injecting …
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Comparative Geochemical Analysis of Ordovician and Mississippian Cherts in Relation to the Northern Arkansas and the Tri-State Mississippi Valley-type Ore Districts
… and clastic formations found within the Ouachita Basin of west-central Arkansas and northward onto the Ozark Dome have experienced interaction with hydrothermal fluids due to tectonic forces produced by the Ouachita Orogeny. Lead (Pb) isotope analyses and resulting values produced through …
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MONITORING SOFT-MAST PRODUCTION IN PINE WOODLAND RESTORATION AREAS ON THE OUACHITA NATIONAL FOREST
… pine (<em>Pinus echinata</em>) woodlands in the Ouachita Mountains. Mature pine habitats maintained with recurrent disturbances have an open understory with a rich floristic diversity that provides quality habitat for many wildlife species, including the endemic and endangered red-cockaded …
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Tales of an 'invisible' life stage : survival and physiology among terrestrial juvenile Ambystomatid salamanders
… annulatum, an endemic species of the Ozark and Ouachita Mountains. This effort demonstrated the utility of life stage-specific demographic and physiological information for guiding the conservation of biodiversity.