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Devonian-Mississippian Boundary, Batesville District, Northeast Arkansas, Steven H. Terry, Deborah E. Coogan

Journal of the Arkansas Academy of Science

The total record of the Devonian System in the Batesville district, northeast Arkansas is represented by the Penters Chert. Conodonts recovered from a thin limestone near the top of the Penters confirm a Lower Devonian age assignment, making this the oldest Devonian formation in northern Arkansas. The contact of the Penters Chert and the overlying Mississippian section is a marked disconformity. Excellent exposures in the bluffs along the east side of the White River exhibit unpredictable distributions of lower Mississippian strata. The most complete representation of the Mississippian sequence includes a basal sandstone of the Bachelor Formation, overlain by several …

Significance Of Major Northeast Trending Lineaments Observed On Landsat Imagery Of Northwestern Arkansas, David A. Smith

Journal of the Arkansas Academy of Science

Examination of LANDSAT 1 satellite imagery covering northwestern Arkansas reveals a set of well-defined northeast trending lineaments. The traces of two such lineaments coincide closely with the strike of the well-known Fayetteville and Drakes Creek faults in this area. The faults are downthrown to the southeast and show a variable amount of vertical displacement (0 to 91 m) along strike. A third major lineament has been recognized that is subparallel to the Fayetteville and Drakes Creek faults and extends from within the Arkoma basin on the south, northeasterly into southern Boone County, Arkansas, fora minimum distance of 85 km and …

Geologic Mapping From Aerial Photography In The Boston Mountains, Northwestern Arkansas, Mikel R. Shinn

Journal of the Arkansas Academy of Science

Aerial photography has been employed to map stratigraphic and structural features in the Boston Mountains of Washington and Crawford Counties, Arkansas. Exposures of resistant stratigraphic units within the lower Atoka Formation were delineated on a series of large scale aerial photographs over an area of about 150 square miles. With the aid of a Bausch & Lomb Zoom Transfer Scope, the positions of the units were subsequently transferred to 1: 24,000 scale topographic base maps. The presense of east trending anticlines and synclines and a series of low displacement normal faults is reflected by either gradual or abrupt changes in …

Middle And Upper Eocene Biostratigraphy (Foraminifera) Of The Cascade Head Area, Lincoln And Tillamook Counties, Oregon, Arden D. Callender Jr.

Dissertations and Theses

An almost complete sequence of middle and upper marine strata, informally designated in this study as the "Strata of Cascade Head", has yielded 334 species and varieties of fossil Foraminifera. The Foraminifera were collected from 38 localities in four stratigraphic sections measured along the Salmon River, Neskowin Creek, Cascade Head Road, and near the town of Three Rocks in the central Oregon Coast Range.

Devonian Sandstone Lithostratigraphy, Northern Arkansas, Jeffery D. Hall, Walter L. Manger

Journal of the Arkansas Academy of Science

Two areas of Devonian sandstone development may be recognized in northern Arkansas. In northwestern Arkansas, the Clifty Formation comprises a massively bedded, super mature quartz arenite of Middle Devonian age overlain by thinner bedded, phosphatic quartz arenite and chert breccia of the Sylamore Sandstone Member, Chattanooga Shale (Upper Devonian). This sequence overlies Ordovician strata (Powell or Everton) and is succeeded by the Chattanooga Shale and strata of Lower Mississippian age. In north-central Arkansas, the Clifty Formation is absent and the Chattanooga Shale may develop sandstone at its base and top. Occasionally the Chattanooga Shale is absent and the entire interval …

Stratigraphy Of The Lower Atoka Formation, Crawford County, Arkansas, John G. Chapman, James P. Thornton, Doy L. Zachry

Journal of the Arkansas Academy of Science

The Atoka Formation (Pennsylvanian) of northwestern Arkansas is a complex succession of sandstone and shale units. Sandstone units in surface sections near the base of the formation in northern Crawford and southern Washington Counties may be correlated with units in the subsurface of the Arkoma Basin. The basal sandstone units of the Atoka Formation as recognized in the Arkoma Basin are correlated with thin, discontinuous sandstones within the Trace Creek Member of the Bloyd Formation in surface exposures to the north. Vertical grain size profiles, electric log profiles and the configuration of thickness trends suggest that lower Atoka sandstone units …

Landsat Linear Trend Analysis - A Tool For Groundwater Exploration In Northern Arkansas, H. C. Macdonald, Kenneth F. Steele, Elizabeth Gaines

Arkansas Water Resources Center Technical Reports

Intelligent development of groundwater resources is a process that requires a thorough understanding of the availability and movement of groundwater. In northern Arkansas knowledge of the deep aquifers is fairly limited, perhaps because economic factors and uncertain yields have discouraged exploitation. The development of these deeper aquifers to their fullest potential as reliable water sources depends on the delineation of high yield areas, a process that may be facilitated by linear trend analysis as outlined in this study. Satellite and photolineament maps of the 13 counties were prepared by use of LANDSAT images and Agricultural Stabilization and Conservation Service photo …

Hydrology And Water Quality In The Central Kentucky Karst: Phase 1, James F. Quinlan, Donald R. Rowe

KWRRI Research Reports

Study of springs and cave streams has shown that heavy metal-rich effluent from a wastewater treatment plant can be traced to Hidden River Cave (beneath the city of Horse Cave) and thence 4 to 5 miles north to a group of 39 springs at 14 locations along a 5-mile reach of Green River. Nickel, chromium, copper and zinc in these effluent-bearing springs are in concentrations of as much as 30 times greater than other springs upstream and downstream from this reach, 20 times greater than the Green River, and 60 times greater than in shallow domestic wells between Horse Cave …

Grindstone Flat And Big Flat Exclosures - A 41-Year Record Of Changes In Clearcut Aspen Communities, United States Department Of Agriculture, Forest Service

Forestry

Deer browsing prevented aspen regeneration in both uncut stands and small 1/20-hectare clearcuts, even though nearby large burns regenerated successfully. Size of the clearcut or burned area may be critical in determining success of aspen regeneration; areas less than about 2 hectares in size may adversely concentrate deer use. Shrub production was less under deer use and forb production was less under cattle use than on protected areas. More apsen suckers were produced in uncut stands where cattle grazed than in stands protected from grazing, suggesting a possible relationship between sucker initiation and reduced competition from the herbaceous understory. Removal …

Estimating Merchantable Volume And Stem Residue In Four Timber Species: Ponderosa Pine, Lodgepole Pine, Western Larch, Douglas-Fir, United States Department Of Agriculture, Forest Service

Forestry

Presents tables and equations for estimating total cubic volumes of wood, wood residue, and bark for ponderosa pine, lodgepole pine, western larch, and Douglas-fir. Tables represent second-growth trees 80 years old or less, ranging in size from 1-1/2 inches d.b.h. to the maximum diameter measured for the respective species. The equations and tables provide a means for estimating wood bark residue volumes from tops, bole sections, and smaller submerchantable stems. Tables and equations can also be used to estimate total cubic volume for the size classes, species, and locale sampled.

Regeneration And Early Growth On Strip Clearcuts In Lodgepole Pine/Bitterbrush Habitat Type, United States Department Of Agriculture, Forest Service

Forestry

Establishment and growth of seedlings 13 years after strip clearcutting was investigated on a lodgepole pine/bitterbrush habitat type in southwestern Montana. Ingress of new seedlings (all from open-coned lodgepole pine) on areas that had been heavily bulldozer scarified was considerably better than on areas without bulldozer scarification. Seed:seedling ratios (established seedlings) ranged from 625:1 to 2,160:1 on scarified sites, and from 1,876:1 to 6,480:1 on unscarified sites. Only 3 years out of 13 resulted in significant numbers of seedlings being established. Advanced regeneration released by logging was growing as rapidly as seedlings established following logging.

Saltland And What To Do About It, C V. Malcolm

Journal of the Department of Agriculture, Western Australia, Series 4

Saltland can be conveniently divided into three main types on the basis of cause. Within each type their is great variation, and the types may merge or overlap.

The three aims of a saltland treatment programme are; reduce the groundwater levels or seepage flows as much as possible,reduce the capillary action which brings salt to the surface, and to revegetate the soils with the most useful plants that can survive.

Tarracolimulus Rieki, Nov. Gen., Nov. Sp., Nuevo Limúlido Del Triásico De Montreal – Alcover (Tarragona), Aldemaro Romero Jr., L. Vía Boada

Publications and Research

No abstract provided.

Development Of Sulfide-Hosting Structures And Mineralization, Pine Point, Northwest Territories, James R. Kyle

Digitized Theses

No abstract provided.

Development Of Sulfide-Hosting Structures And Mineralization, Pine Point, Northwest Territories, James Richard Kyle

Digitized Theses

No abstract provided.

Moisture Responses Of Wheat (Merredin), R Weir

Experimental Summaries - Plant Research

A trial was planted at Merredin in 1976 on Salmon Gum soil with the aim of testing the drought tolerance of Gamenya, Madden and Insignia wheat.

Lupin Trials, J Moore

Experimental Summaries - Plant Research

Trials in lupins this year concentrated on testing herbicide for post emergence use in lupins. Of the 20 herbicides tested 12 did not cause significant decreases in crop density and/or yield. However, weed control was often poor and the herbicide phytotoxicity tended to vary between sites. (Chapman, Badgingarra and Avondale). The Chapman and Avondale trials were not harvested because of drought. Trials in 1978 should determine if any of the herbicides tested can safely be recommended. Lupins - summary. Post emergence lupin herbicides (Badgingarra Research Station) - 77BA36. Post emergence herbicides for lupins (Chapman Research Station) - 77C18. Post emergence …

Vertical Drainage In Field Cores, Larry G. Wells, R. W. Skaggs

Biosystems and Agricultural Engineering Faculty Publications

No abstract provided.

Minimum Tillage Trials 1977, G. A. Pearce

Experimental Summaries - Plant Research

Minimum tillage trials 1977. Locations: Wongan Hills R.S., Avondale, Merredin, Mt. Barker, Esperance. Sites: At each station two sites were used, the first was under crop in 1976 and the trial will be repeated each year on the same area. The second site was under pasture in 1976 and was due to be cropped in 1977 as part of the normal district practice. The trials will be planted on a similar pasture site in 1978. Results. Apart from crop yields, weed counts (before spraying) and crop plant numbers were taken. Other measurements were made by various research officers and reported …

Trace Element Nutrition, J. W. Gartrell

Experimental Summaries - Plant Research

Factors influencing the effectiveness of mixed copper-superphosphate fertilizers. 1. 77LG30 TABLE 1. Variable treatments and treatment numbers. TABLE 2 - Gamenya wheat grain yields from experiment 77LG30 (1977) in which the influence of several variables on the effectiveness of copper fertilisers were tested. TABLE 3 - Cu concentration in youngest-fully emerged leaf (7th-leaf) sampled 31.8.77 from experiment 77LG30 and index of Cu uptake (Cu in YFEL x actual grain yield). TABLE 4: Wheat grain yields and copper content in youngest fully emerged flag leaf sampled 5.10.77. 2. Copper x Nitrogen, Zn and Mo on wheat. 3. Wheat Grain Copper Analysis. …

Phosphorus Sources Trials, M Da Bolland, M J. Baker

Experimental Summaries - Plant Research

HIGH RAINFALL AREAS -Sand 76BU1 - New land phosphorus sources trial (pasture) T. O'Byrne, Yalingup. 76BU4 - Old land phosphorus sources trial (pasture) T. Combe, Busselton. Gravel 76MT10 - New land phosphorus sources trial (pasture) Mt. Barker Research Station. 76MT9 - Old land phosphorus sources trial (pasture) Mt. Barker Research Station. 77MT1 - Newland particle size and method of cultivation phosphorus source trial (pasture) Mt. Barker Research Station. 77MT2 - Old land phosphorus sources cropping trial (oats every 3rd year) Mt. Barker Research Station. MEDIUM RAINFALL AREAS Sand 76ES37 - Young land phosphorus sources trial (pasture) F. Fels, Esperance. 77E1 …

Phosphorus And Sulphur Group, J. W. Bowden, R J. Lunt, K F. Longbottom

Experimental Summaries - Plant Research

Long Term Trials Stocking and superphosphate trials - 66M30, 68BR7. Maintenance Phosphorus x Sulphur trials - 65A1, 65N5, 65C5, 69WH15, 68B1, 69AL3 and 67N05. Low Rainfall Crops and Pastures. Residual phosphorus trials - 76ES8, 75KA4, 75LG26 and 76NA5. Miscellaneous Cropping Trials. Rate of phosphorus on wheat - 77ES2, 77ME5, 77N03. N. P and seed rates on wheat - 77JE1. Row spacing, phosphorus and seed rate on wheat - 77ME6. Phosphorus on nitrogen build up - 77M033. Rate of super on old land lupins - 77A18 & 19, 77BA13 & 14, 77E20. Pasture Trials. Phosphorus and Sulphur on old land pasture …

Longevity Of Doublegee Seed Under Continuous Pasture, D J. Gilbey

Experimental Summaries - Plant Research

Locality: Avondale, Wongan Hills and Chapman Research Stations. Background. Since 1974 pegged areas on the three research stations have been under continuous pasture and have been sampled annually to study the fate of the viable doublegee seed population. Each site was sprayed for doublegee control in the growing season before the first samples were taken in late summer of 73/74. The sites were again sprayed in the 1974 growing season except for Wongan Hills. The Wongan Hills site was cropped in 1976 and no further data is available. 74C7, 75WH65, 75WH66, 76AL11, 76C9, 76C6, 77C3, 77GE9, 77LC26, 77ME28, 77M028, 77N034, …

Summary Of 1977 Field Trials, M. L. Poole

Experimental Summaries - Plant Research

Competition between wheat and annual ryegrass at six rates of seeding wheat, six ryegrass densities and five rates of nitrogen fertiliser (Wongan Hills Research Station) - 77WH6. Time of removal of annual ryegrass from a wheat crop (Wongan Hills Research Station)- 77WH7. Effect of different tillage systems on establishment and yield of wheat (Merredin Research Station) - 77M52. Rapeseed variety trial (Lancelin) - 77MO30. Shedding losses in rapeseed (Mount Barker Research Station) - 77MT25. Time of germination of ryegrass on wheat yield (Wongan Hills Research Station) - 77WH47. Sunflower agronomy trial (Bramley research Station) - 77B5. Other trials: 1. Co-operative …

Potassium Trials, W. J. Cox

Experimental Summaries - Plant Research

1. Potassium Trials. 77MO1, 76MO1, 77MO2, 77MO27, 76MO3. Lost due to drought effects: 77GE4, 77GE5, 77GE6, 77TS1, 77TS2, 77TS4, 77TS11.

Planting Systems Investigations, D Tennant

Experimental Summaries - Plant Research

Planting systems investigation. l. Planting depths. 2. Soil water (0-lOcm) near planting. 3. Mineralised N near planting. Planting systems investigation. Two trials were initiated on each of five Research Stations in collaboration with G.A. Pearce and J.E. Holmes. Details in respect of treatments, operations, fertilisers, rainfall, yields and weed populations are provided by these officers in their respective reports. For the purposes of this report, attention is drawn to two findings of a preliminary study of similar planting systems in 1976. TABLE 1. DepthS of planting (cm). Means of 40 to 80 estimates - 77A16, 77E18, 77M13, 77MT15, 77WH17. TABLE …

Grain Legume Agronomy 1976-1977, G H. Walton

Experimental Summaries - Plant Research

76B1, Lupin agronomy, high rainfall area.

CB49, Lupin crop establishment methods.

76JE7, Lupin agronomy and soil fertility improvement.

74MO11, Seedling regeneration.

75MO7, Pasture establishment under unicrop and soil fertility improvement.

76MO13, L. cosentinii cv CB49 agronomy.

76MO14, Amino acid sequence study in the maturation of lupin seed.

76MT4, Chick pea response to plant density.

76MT5, Effect of waterlogging on lupin species.

76NA9, Polyculture of wheat and lupin.

76NA10, Pasture establishment under cover crops.

76TS12, L cosentinii cv agronomy.

Pawnee County, Table Rock Area, R. K. Pabian

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.

Coal Resources Of Nebraska, R. R. Burchett

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.

Remnant Prairie Plots Of Benton County, Arkansas, Maxine B. Clark

Journal of the Arkansas Academy of Science

No abstract provided.