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Articles 1051 - 1077 of 1077

Full-Text Articles in Physical Sciences and Mathematics

Development Of A Shear-Zone Bounded Block Uplift Within The Middle Crust Of The Archean Wyoming Province During Proterozoic Accretion, Laramie Mts., Wy, Phillip Resor, A Snoke, K Chamberlain Dec 1995

Development Of A Shear-Zone Bounded Block Uplift Within The Middle Crust Of The Archean Wyoming Province During Proterozoic Accretion, Laramie Mts., Wy, Phillip Resor, A Snoke, K Chamberlain

Phillip G Resor

No abstract provided.

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The In Situ Passive Acoustic Measurement Of Shingle Movement Under Waves And Currents: Instrument (Tosca) Development And Preliminary Results, George Voulgaris, Michael Wilkin, Michael Collins Jul 1995

The In Situ Passive Acoustic Measurement Of Shingle Movement Under Waves And Currents: Instrument (Tosca) Development And Preliminary Results, George Voulgaris, Michael Wilkin, Michael Collins

George Voulgaris

An instrumented platform (TOSCA) is described for monitoring coarse-grained sediment transport in high (wave and tidal) energy environments. The system consists of a number of sensors which measure: instantaneous current velocities at three levels; sea surface elevation; and self-generated noise (SGN) caused by intercollision of particles in transit. SGN is related to transport rates, on the basis of laboratory calibration; this, in turn, allows a correlation with simultaneous near-bed shear stress to be established. During the field measurements, PC-based real-time data transmission is realised through the use of a (buoyed) radio telemetry system.

TOSCA has been deployed in eastern Christchurch …

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An Experimental Program To Constrain The Properties Of Co2 Fluid At Elevated Pressures And Temperatures, Andrea Koziol Feb 1995

An Experimental Program To Constrain The Properties Of Co2 Fluid At Elevated Pressures And Temperatures, Andrea Koziol

Andrea M. Koziol

This research project received funding from the University of Dayton Research Council from March 1995 to September 1995.

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Miocene Paleogeography Of West-Central California--Offset Along The San Gregorio-Hosgri Fault Zone, Clarence Hall Jr, Mark Sutherland, Raymond Ingersoll Dec 1994

Miocene Paleogeography Of West-Central California--Offset Along The San Gregorio-Hosgri Fault Zone, Clarence Hall Jr, Mark Sutherland, Raymond Ingersoll

Mark Sutherland

The major faults that occur in the region are described and the amount of lateral offset used to construct palinspastic maps is given. The longest, most controversial, and most critical fault relative to the palinspastic maps is the San Gregorio-San Simeon-Hosgri fault, which is discussed in detail

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Upper Ordovician Graptolites From The North American Midcontinent:University Biostratigraphy, Biofacies, And Sea-Level, Daniel Goldman Dec 1993

Upper Ordovician Graptolites From The North American Midcontinent:University Biostratigraphy, Biofacies, And Sea-Level, Daniel Goldman

Daniel Goldman

Funding agency: The Ohio State University Amount: $23,000.00

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U/Pb Sphene Date Of Mylonitization Associated With The Proterozoic Laramie Peak Shear Zone, Laramie Mountains, Wy, Phillip Resor, K Chamberlain, A Snoke, C Frost Dec 1993

U/Pb Sphene Date Of Mylonitization Associated With The Proterozoic Laramie Peak Shear Zone, Laramie Mountains, Wy, Phillip Resor, K Chamberlain, A Snoke, C Frost

Phillip G Resor

In this paper, we show that deformation can be dated by combining mesoscopic and microscopic structural observations with an understanding of metamorphic mineral reactions and U-Pb ages of newly grown sphene (titanite). This approach can be used on a variety of rock types that have been deformed at a wide range of metamorphic conditions. In an example from the Proterozoic Laramie Peak shear zone of southeastern Wyoming, a single period of syntectonic sphene growth in sheared mafic dikes is documented both by a strong spatial relationship between deformation and metamorphism and by sphene microtextures. U-Pb analyses of sphene separates give …

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An Investigation Of The Stability Of Carbonate Minerals, Andrea Koziol Dec 1993

An Investigation Of The Stability Of Carbonate Minerals, Andrea Koziol

Andrea M. Koziol

This research project received funding from the University of Dayton Research Council from January 1994 to September 1994.

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Implementation Of The Surface Mining Control And Reclamation Act In Pennsylvania: A Decade Later, John Dernbach Dec 1992

Implementation Of The Surface Mining Control And Reclamation Act In Pennsylvania: A Decade Later, John Dernbach

John C. Dernbach

No abstract provided.

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The Other Ninety-Six Percent, John C. Dernbach Dec 1992

The Other Ninety-Six Percent, John C. Dernbach

John C. Dernbach

No abstract provided.

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The Global Environment Facility: Financing The Treaty Obligations Of Developing Nations, John C. Dernbach Dec 1992

The Global Environment Facility: Financing The Treaty Obligations Of Developing Nations, John C. Dernbach

John C. Dernbach

No abstract provided.

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Residual Waste Management: A Quick Guide To Decision-Making, John Dernbach Dec 1991

Residual Waste Management: A Quick Guide To Decision-Making, John Dernbach

John C. Dernbach

No abstract provided.

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Industrial Waste Management, John Dernbach Dec 1991

Industrial Waste Management, John Dernbach

John C. Dernbach

No abstract provided.

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Thermochronology And Thermobarometry In Lithotectonic Zones In Eastern New England, Andrea Koziol, Robert Wintsch Apr 1991

Thermochronology And Thermobarometry In Lithotectonic Zones In Eastern New England, Andrea Koziol, Robert Wintsch

Andrea M. Koziol

Eastern New England is now recognized to consist of a number of exotic terranes joined to ancestral North America along large faults. However, the timing of the accretion of these terranes is in a state of flux. This project will gather thermometric and barometric data from both sides of these terrane bounding faults and together with existing age determinations will assess the possibility of major Alleghenian motion, not previously recognized. Results have the potential to provide a major re-interpretation of the timing of terrane accretion in New England.

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Experimental Studies Of Fe-Mg Carbonates As Indicators Of Martian Near-Surface Conditions, Andrea Koziol Jan 1991

Experimental Studies Of Fe-Mg Carbonates As Indicators Of Martian Near-Surface Conditions, Andrea Koziol

Andrea M. Koziol

This research project received funding from the National Aeronautics and Space Administration from February 1999 to February 2000.

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The Development Of An Industrial Waste Regulatory Program, John Dernbach, William Pounds Dec 1990

The Development Of An Industrial Waste Regulatory Program, John Dernbach, William Pounds

John C. Dernbach

No abstract provided.

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Acquisition Of An Electron Probe Microanalyzer, Andrea Koziol, Robert Wintsch, Michael Dorais, Edward Ripley, Enrique Merino Dec 1990

Acquisition Of An Electron Probe Microanalyzer, Andrea Koziol, Robert Wintsch, Michael Dorais, Edward Ripley, Enrique Merino

Andrea M. Koziol

This award will provide half of the funds needed for the acquisition of an electron microprobe. This new electron microscope will primarily serve the needs of the Geology faculty and graduate students in the Department of Geological Sciences at The University of Indiana. The University of Indiana is committed to provide the additional funds to make this acquisition possible. Seven Geology Department faculty and their students have been identified as primary users. Six other faculty expect to be less frequent or occasional users. This large group of faculty and their students pursue research in diverse areas (e.g. thermodynamic links between …

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The Vcl Hypothesis Revisited: Patterns Of Femoral Morphology Among Quadrupedal And Saltatorial Prosimian Primates, Robert Anemone Dec 1989

The Vcl Hypothesis Revisited: Patterns Of Femoral Morphology Among Quadrupedal And Saltatorial Prosimian Primates, Robert Anemone

Robert L. Anemone

The descriptive and functional morphology of the postcranium of the vertical clinging and leaping prosimians is of great interest in both adaptational and phylogenetic studies of extant and extinct primates. An analysis of patterns of femoral morphology among quadrupedal and saltatory living prosimians indicates the presence of at least two, and possibly three, distinct femoral adaptations to the demands of an arboreal, saltatory existence. Osteological measurements were taken on 277 postcranial skeletons representing eight prosimian families, with skeletal trunk length (Biegert and Maurer, Folia Primatol. 17:142–156, 1972) used as an estimator of body size in both bivariate and multivariate (discriminant …

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Petrology And Provenance Of Miocene Sedimentary Rocks, Point Sur, California: Implications For Offset Along The San Gregorio-Hosgri Fault Zone, Mark Sutherland Dec 1989

Petrology And Provenance Of Miocene Sedimentary Rocks, Point Sur, California: Implications For Offset Along The San Gregorio-Hosgri Fault Zone, Mark Sutherland

Mark Sutherland

No abstract provided.

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Forces And Policy Issues Affecting Forest Use In Northeast Thailand 1900-1985, James A. Hafner Emeritus Professor Dec 1989

Forces And Policy Issues Affecting Forest Use In Northeast Thailand 1900-1985, James A. Hafner Emeritus Professor

James A Hafner

No abstract provided.

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Human-Forest Interactions In Northeast Thailand, James A. Hafner Professor Emeritus Jan 1987

Human-Forest Interactions In Northeast Thailand, James A. Hafner Professor Emeritus

James A Hafner

The Northeast Thailand Upland Social Forestry (NTUSF) project was initiated in May 1985 by a grant from the Ford Foundation to the Faculty of Forestry, Kasetsart University. The project was designed as a collaborative, inter-disciplinary research program to examine social, economic, and land use changes in upper watershed areas of Northeast Thailand. It was also conceived of as an effort to promote interdisciplinary collaboration and a systems approach to the way these complex issues are conceived, examined and analyzed.  A medium term goal was to use the knowledge gained from case study research to inform planning for a pilot program …

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Implications Of Atmospheric Test Fallout Data For Nuclear Winter, George H. Baker Jan 1987

Implications Of Atmospheric Test Fallout Data For Nuclear Winter, George H. Baker

George H Baker

Atmospheric test fallout data have been used to determine admissible dust particle size distributions for nuclear winter and nuclear fallout studies. The research was originally motivated by extreme differences noted in the magnitude and longevity of dust effects predicted by particle size distributions routinely used in fallout predictions versus those used for nuclear winter studies. Three different sets of historical data have been analyzed:

1. Stratospheric burden of Strontium-90 and Tungsten-185, 1954-1967 (97 contributing events) 2. Continental U.S Strontium-90 fallout through 1958 (75 contributing events) 3. Local Fallout from selected Nevada tests (16 events)

The contribution of dust to possible …

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Market Gardening In Thailand: The Origins Of An Ethnic Chinese Monopoly, James A. Hafner Dec 1982

Market Gardening In Thailand: The Origins Of An Ethnic Chinese Monopoly, James A. Hafner

James A Hafner

No abstract provided.

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Subduction Of The Caribbean Plate And Basement Uplifts In The Overriding South American Plate, James N. Kellogg, William E. Bonini May 1982

Subduction Of The Caribbean Plate And Basement Uplifts In The Overriding South American Plate, James N. Kellogg, William E. Bonini

James N Kellogg

Abstract. The new tectonic interpretations presented in this paper are based on geologic field mapping and gravity data supplemented by well logs, seismic profiles, and radiometric and earthquake data. The present Caribbean-South American plate boundary is the South Caribbean marginal fault, where subduction is indicated by folding and thrusting in the deformed belt and a seismic zone that dips 30o to the southeast and terminates 200 km below the Maracaibo Basin. The Caribbean-South American convergence rate is estimated as 1.9 +_. 0.3 cm/yr on the basis of the 390-km length of the seismic zone and a thermal equilibration time of …

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Book Review (Reviewing Bruce A. Ackerman & William T. Hassler, Clean Coal/Dirty Air (1981)), John C. Dernbach, Thomas Y. Au Dec 1981

Book Review (Reviewing Bruce A. Ackerman & William T. Hassler, Clean Coal/Dirty Air (1981)), John C. Dernbach, Thomas Y. Au

John C. Dernbach

No abstract provided.

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Legislative Note, Metallic Mining And Reclamation In Michigan: Environmental Management As A Gentler Approach, John Dernbach Dec 1976

Legislative Note, Metallic Mining And Reclamation In Michigan: Environmental Management As A Gentler Approach, John Dernbach

John C. Dernbach

No abstract provided.

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Riverine Commerce In Thailand: Tradition In Decline, James A. Hafner Emeritus Professor Jun 1974

Riverine Commerce In Thailand: Tradition In Decline, James A. Hafner Emeritus Professor

James A Hafner

No abstract provided.

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Man And Environment In Rural Thailand, James A. Hafner Emeritus Professor Jun 1973

Man And Environment In Rural Thailand, James A. Hafner Emeritus Professor

James A Hafner

No abstract provided.

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