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Backfilling Canals To Mitigate Wetland Dredging In Louisiana Coastal Marshes, Christopher Neill, R. Eugene Turner

Faculty Publications

Returning canal spoil banks into canals, or backfilling, is used in Louisiana marshes to mitigate damage caused by dredging for oil and gas extraction. We evaluated 33 canals backfilled through July 1984 to assess the success of habitat restoration. We determined restoration success by examining canal depth, vegetation recolonization, and regraded spoil bank soils after backfilling. Restoration success depended on: marsh type, canal location, canal age, marsh soil characteristics, the presence or absence of a plug at the canal mouth, whether mitigation was on- or off-site, and dredge operator performance.

Backfilling reduced median canal depth from 2.4 to 1.1 m, …

Grand Valley Forum, Volume 012, Number 12, October 19, 1987, Grand Valley State University

1987-1988, Volume 12

Grand Valley Forum is Grand Valley State's faculty and staff newsletter, published from 1976 to the present.

Monitor Newsletter September 14, 1987, Bowling Green State University

Monitor

Official Publication of Bowling Green State University for Faculty and Staff

The Cowl - V.52 - N.1 - Sep 9, 1987

The Cowl

The Cowl - student newspaper of Providence College. Volume 52, Number 1 - September 9, 1987. 20 pages.

Evolutionary Aspects Of Reptilian And Mammalian Enamel Structure, A. Sahni

Scanning Microscopy

The evolution of enamel structure is dealt with here on the basis of fossil reptiles and mammals ranging from the Triassic to the present. The evidence suggests that prismatic enamel had developed in some therapsid reptiles and the mammal, Eozostrodon about 180 million years ago. For the next 100 million years, mammalian evolutionary history is sparingly documented and this is reflected in the poor record of enamel evolution during this period. The few Jurassic reptiles and mammals studied suggest a pre-prismatic structure. In the Late Cretaceous (BO to 65 million years ago) when the fossil record improves, mammalian enamel investigated …

Amcs Activities Newsletter, No. 16, August 1987, Terri Treacy Sprouse

KIP Articles

Contents: Mexico News -- Long and Deep Caves of Mexico -- Nanta-Huautla Tie-In -- Chilchotla '85 -- Caving in Tabasco -- UNAM Expedition to Veracruz -- Chiapas: The Dutch Expedition -- Belginan Explorations at Zoquitlan -- Underwater Caverns of Quintana Roo -- Sotano de Ocotempa -- Sea Caves of Loreto -- Camp Challenger: PEP 1986 -- Camp V: PEP 1987 -- Cueva de la Llorona -- Cueva del Tecolote -- Book Reviews

The Texas Caver, Volume 32, No. 4, August 1987, Dale Pate

The Texas Caver

Contents: Eulogy (Bob Oakley) - Walkup Cave Revisited (Kerry Brown) - Kamikaze Bob - The Transit-Survey Myth (Bill Mixon) - Natural Bridge Caverns: Not just another Cave (Wm. Russell) - NSS Fellows & APA - Cave Management Updates & Archeological Testig - Trip Reports - Grotto News - Grotto and Caver Group Adresses

Investment Planning Model For Optimum Allocation Of Natural Gas: A Programming Approach, V Ranganathan, R Ramanathan

IIMB Management Review

Natural gas has been recognised for a long time as a primary source in most of the developed countries. However, the developing countries like India did not realisethe full potential in this area till reeently. This is all the more appalling since natural gas seems to be India’s predominant hydrocarbon resources. As per the Advisory Board on Energy, in 1976, an Indo-Soviet geological study team had concluded that 75% of India’s ultimate hydro-carbon reserves were in the form of natural gas.

Flora Of The Orange Cliffs Of Utah, L. M. Shultz, E. E. Neely, J. S. Tuhy

Great Basin Naturalist

The vascular flora of the Orange Cliffs area, defined here as part of the Colorado Plateau floristic province, harbors approximately 209 species in 123 genera and 49 families. A species checklist is provided with a discussion of physical and floristic aspects of the region. The flora is compared statistically to the San Rafael Swell flora, which is also a subset of the Colorado Plateau. We define six vegetation types and three edaphic communities; these are described and mapped. Of eleven endemic plant species in the Orange Cliffs, three are local and rare. Sites for Astragalus nidularius, A. moencoppensis, and Xylorhiza …

The Daily Egyptian, April 28, 1987, Daily Egyptian Staff

April 1987

No abstract provided.

Structural Style Of The Laramide Orogeny, Wyoming Foreland. (Volumes I And Ii), William Gregor Brown

Theses (Unassigned)

This study documents the styles of Laramide structures of the Wyoming foreland, and presents an integrated synthesis of foreland development. Theoretical data and experimental results are compared to field observations, subsurface well control, and geophysical data to judge their application to the foreland. The direction of collision (N40-50E) between the North American and Farallon plates represents the direction of maximum compressive stresses during the Laramide orogeny. A "tectonic front" progressed from west to east across the foreland during Campanian to middle Eocene time. No single model of uplift applies throughout the foreland. Dips of basement faults vary with changes in …

Abundance Of Young Brown Shrimp In Natural And Semi-Impounded Marsh Nursery Areas: Relation To Temperature And Salinity, William H. Herke, M. William Wengert, Michelle E. Lagory

Gulf of Mexico Science

Samples of brown shrimp (Penaeus aztecus, 10 to 130 mm in total length) were collected with otter trawls weekly from 14 March to 20 August 1971 in brackish marsh areas at Marsh Island, Louisiana. Catches were largest from 1 May to 4 June in the natural marsh and from 1 May to 4 July in the semi-impounded marsh (influenced by weirs). Total catch was four times greater in the natural than in the semi-impounded marsh. However, brown shrimp apparently stayed longer in the semi-impounded areas, and emigrated at a larger size. Water temperatures above 20°C were apparently more …

Daily Eastern News: April 01, 1987, Eastern Illinois University

April

No abstract provided.

The Stratigraphy Of Late Quaternary Deposits In The Payan Mining District, Narino, Colombia, South America, Richard Alan Barringer

OES Theses and Dissertations

Late Quaternary terrace deposits along the Rio Magui consist of cobble or pebble gravels with thick volcanic ash caps. These gravel terrace deposits unconformably overlie a cemented volcanic tuff (Ananias Formation), and are subdivided into two formations (Antigua and Panambi formations) based on the cobble lithology and size, depth of weathering, geomorphic relationships, and heavy mineral assemblages. Carbon-14 dates from wood suggest that the Antigua fan deposits are older (greater than 40,000 YBP) than the lower Panambi alluvium (less tahn 25,000 YBP) which is restricted to lower terraces within the modern river valleys.

Two separate ash units identified by differences …

Ua3/7/7 Scrapbook File, Wku President - Alexander

WKU Administration Documents

Clippings regarding WKU during February 1987.

Annual Report Of The Officers Of The Town Of Jackson, New Hampshire, For The Fiscal Year Ending December 31, 1986., Jackson Town Representatives

Jackson, NH Annual Reports

This is an annual report containing vital statistics for a town/city in the state of New Hampshire.

Annual Reports Of The Town Officers Of The Town Of Madbury For The Fiscal Year Ending December 31, 1986., Madbury Town Representatives

Madbury, NH Annual Reports

This is an annual report containing vital statistics for a town/city in the state of New Hampshire.

Annual Reports Of The Town Of Newington, New Hampshire For The Year Ending December 31, 1986., Newington Town Representatives

Newington, NH Annual Reports

This is an annual report containing vital statistics for a town/city in the state of New Hampshire.

Carbonate-Clastic Synthems Of The Middle Beekmantown Group In The Central And Southern Champlain Valley, Chisick, Steven A., Washington, Paul A., Friedman, Gerald M.

Trips

Guidebook for field trips in Vermont: New England Intercollegiate Geological Conference, 79th annual meeting, October 16, 17 and 18, 1987: Trips C-4. Irregular pagination.

1987-1988 Nova University In Brief, Nova Southeastern University

Undergraduate Programs Course Catalogs

No abstract provided.

A Primer On Computer Simulation Of Hydrocarbon Reservoirs, Eugene A. Lang, Jr.

Land & Water Law Review

No abstract provided.

Development And Application Of Some Quantitative Stratigraphic Techniques To The Coos Bay Coalfield, A Tertiary Fluvio-Deltaic Complex In Southwestern Oregon, Willard Sidney Titus Iii

Dissertations and Theses

A computer technique for interpreting geophysical logs of drill-holes in quantitative lithologic terms has been developed and tested on the deposits of the late Eocene Coaledo Formation, a well-studied fluvio-deltaic complex in southwestern Oregon. The technique involves the use of induced and natural gamma logs for separation of coal and claystone from coarse-grained detrital rocks and the use of the ratio of resistivity and natural gamma responses (defined here as the "grain size index") to divide the coarse elastic rocks into a series of textural classes corresponding to the Wentworth-Odden particle size scale.

The Geology And Geochemistry Of The Cotter Basin Stratabound + Vein Copper-Silver Deposit Helena Formation Lincoln Lewis And Clark County Montana, Gregory B. Byer

Graduate Student Theses, Dissertations, & Professional Papers

No abstract provided.

Annual Reports Of The Town Of Greenland, New Hampshire For The Fiscal Year Ending December 31, 1986, As Compiled By The Town Officers., Greenland Town Representatives

Greenland, NH Annual Reports

This is an annual report containing vital statistics for a town/city in the state of New Hampshire.

Isostatic Compensation And Conduit Structures Of Western Pacific Seamounts: Results Of Three-Dimensional Gravity Modeling, James N. Kellogg, Bruce S. Wedgeworth, Jeffrey T. Freymueller

Faculty Publications

Detailed three-dimensional polygonal prism models of two large western Pacific seamounts show that the 135 mgal difference in the observed sea surface gravity over the two can be best explained by similar mean densities (2.6 gjcm3) and crustal thickening under one seamount (Airy isostatic compensation). Observed calculated residuals are further reduced by including dense (2.9 gjcm3) vertical feeder pipes or volcanic conduits in the models. Dense conduits or fracture zones 5 to 17 km in diameter are located under many, if not all, craters on volcanic islands and seamounts. Results from the detailed seamount studies can be generalized using exact …

A 3-D Gravity Tectonic Study Of Ita Mai Tai Guyot: An Uncompensated Seamount In The East Mariana Basin, Bruce S. Wedgeworth, James N. Kellogg

Faculty Publications

Ita Mai Tai is a large, locally uncompensated seamount on the eastern edge of the East Mariana Basin. A large positive gravity anomaly of 254 mgal characterizes the summit and a low of -69 mgal, the surrounding moat. Using polygonal prisms to approximate the bathymetry, the observed gravity was inverted to calculate an average density of 2.59 g/ems for the seamount. Observed-calculated gravity residuals are reduced by including the flanking sedimentary basins and a dense volcanic conduit. The drill sites from DSDP Legs 20 and 89 describe a volcanic edifice formed in the Aptian!Albian on Jmassic/Cretaceous crust. The volcanism is …

A Paleoenvironmental Study Of The Salem Limestone In The Vicinity Of St. Louis, Missouri, Douglas J. Van Brunt

Masters Theses

“The Salem Limestone (Meramecian) of Mississippian age in the vicinity of St. Louis, Missouri is composed of a variable sequence of limestones deposited in shallow waters adjacent to scattered positive elements. This unit varies in thickness from zero up to 160 feet.

A medium to coarse-grained calcarenite is the dominant rock-type of the thesis area and is most abundant in the central and southwest regions. Stratigraphic sections in the northern region are more dolomitic, increasingly brecciated, and contains numerous secondary features. The southeast region is thinly bedded and composed of greater amounts of micrite formed by algal activity or direct …

Sedimentology Of The Upper Triassic Chinle Formation Southeastern Utah: Paleoclimatic Implications, Russell F. Dubiel

United States Geological Survey: Staff Publications

The Upper Triassic Chinle Formation in southeastern Utah was deposited in a complex fluvial-deltaic-lacustrine system. The Chinle records the evolution of a continental system in response to variations in climate, tectonics, and sediment supply. Chinle strata represent deposits of fluvial channels and floodplains, lacustrine deltas, lacustrine basins, and lacustrine and playa mudflats. These rocks include a variety of vertebrate, invertebrate, and plant fossils, trace fossils, and paleosols that provide information on depositional environments, water tables, and paleoclimate.

Sedimentologic and paleontologic interpretations both support an interpretation of abundant lakes, streams, and marshes with high, but fluctuating water tables for all but …

A Gravity And Magnetic Study Of The Crooked Creek Cryptoexplosion Structure, Crawford County, Missouri, Charles Edward Woodbury

Masters Theses

"The pre-Pennsylvanian structure at Crooked Creek consists of a complex, vertically faulted ring of Cambrian and Ordovician sediments with a central uplifted core. The center of the structure is strongly deformed and contains shatter cones, brecciation, and other signs of extreme shock.

A magnetic low over the center of the structure suggests that igneous material was not involved in the formation of the structure, and this is corroborated by core analysis. Gravity data indicates several small gravity lows, possibly associated with areas of brecciation, circling the flanks of the structure. As in the magnetic data, there is no indication that …