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Meteorite search in the deflation basins in Lea County, New Mexico and Winkler County, Texas, USA: Discovery of Lea County 003 (H4)
During the past few decades great numbers of meteorites have been recovered from the ice accumulation zones of Antarctica and from the vast Sahara. Although these two great deserts are the two most productive areas, the Southern High Plains in USA (New Mexico and Texas) and Nullarbor Plain, Western Australia have great potential for meteorite recovery. The number of meteorite finds from Roosevelt County, New Mexico alone exceeds 100 in only approximately 11 km{sup 2} area. Most meteorites from this area have been found on the floors of active deflation basins (blowouts) that have been excavated from a mantle of sand dunes. This area has no apparent fluvial or permafrost activity within the last 50,000 years, suggesting that only prevailing winds and natural aridity aid in the concentration and preservation of meteorites. The authors investigated these deflation surfaces in Lea County (the SE corner of New Mexico) and neighboring Winkler County, Texas following a prior search in this area which found two chondrites. They found a tiny H4 chondrite in this search and here they report its mineralogy and petrology along with preliminary data on its exposure history.
Date:
January 14, 2000
Creator:
Mikouchi, T.; Buchanan, P. C.; Zolensky, M. E.; Welten, K. C.; Hutchison, R. & Hutchison, M.
Object Type:
Article
System:
The UNT Digital Library
The Natural Resources and Environment Function in the FY2000 Federal Budget: A Description of Programs and Funding
None
Date:
January 14, 2000
Creator:
Bearden, David M.
Object Type:
Report
System:
The UNT Digital Library
Noble gases and cosmogenic radionuclides in the Eltanin Pacific meteorite
A 1.5 cm long, 1.2 g specimen of the Eltanin meteorite was found at 10.97 m depth in Polarstern piston core PS2704-1. The early studies indicated that the small fragments of the Eltanin meteorite was debris from a km-sized asteroid which impacted into the deep-ocean basin. In this study, the authors measured {sup 39}Ar-{sup 40}Ar age, noble gases, and cosmogenic radionuclides in splits of specimen as a part of consortium studies of Eltanin meteorite. They concluded that the specimen was about 3 m deep from the asteroid surface. The exposure age of the Eltanin asteroid was about 20 Myr.
Date:
January 14, 2000
Creator:
Bogard, D D; Garrison, D H; Caffee, M W; Kyte, F & Nishiizumi, K
Object Type:
Article
System:
The UNT Digital Library
Nonlinear Crack Growth Monitoring
None
Date:
January 14, 2000
Creator:
Welch, D.E.
Object Type:
Report
System:
The UNT Digital Library
Office of Industrial Technologies Information Resources Catalog 2000
The Information Resources Catalog describes publications, videos, software, and other products available from OIT. These resources can help industrial firms improve energy efficiency and competitiveness, while reducing waste and pollution. Because many OIT resources have applications in multiple areas, the index is organized as a matrix.
Date:
January 14, 2000
Creator:
National Renewable Energy Laboratory (U.S.)
Object Type:
Book
System:
The UNT Digital Library
Officials/Developers Eye Future Garland Rail Stations
News release concerning a conference about transit-oriented business development.
Date:
January 14, 2000
Creator:
Lyons, Morgan
Object Type:
Text
System:
The Portal to Texas History
The Oklahoma Daily (Norman, Okla.), Vol. 84, No. 84, Ed. 1 Friday, January 14, 2000
Student newspaper of the University of Oklahoma in Norman, Oklahoma that includes national, local, and campus news along with advertising.
Date:
January 14, 2000
Creator:
Wilmoth, Adam
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Optimist (Abilene, Tex.), Vol. 88, No. 29, Ed. 1, Friday, January 14, 2000
Tri-weekly student newspaper from Abilene Christian University in Abilene, Texas that includes local, state and campus news along with advertising.
Date:
January 14, 2000
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
Perry Daily Journal (Perry, Okla.), Vol. 107, No. 10, Ed. 1 Friday, January 14, 2000
Daily newspaper from Perry, Oklahoma that includes local, state, and national news along with advertising.
Date:
January 14, 2000
Creator:
Brown, Gloria
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Quarterly Report for High NA Optics Development: Q4-1999 International Sematech Project LITH 112
This quarterly report provides a status update for each of the milestones for the International Sematech project on the development of high-NA optics for a small-field EUVL exposure tool. Accomplishments this quarter include aerial image calculations, specifications for multilayer coatings, specification of the M2 substrate, and design of fixturing for M2, and the design of the metrology mount for M2. The optical fabrication vendor, Carl Zeiss, has completed the construction of an interferometer for use in fabricating the M1 substrate and reports a test-to-test repeatability of 0.06 nm rms. However, the simultaneous achievement of figure and finish is requiring longer than anticipated, which will extend the M1 delivery date to the end of Ql-2000. Zeiss is planning to process substrates M1 and M2 in parallel and currently does not project a slip in their overall schedule.
Date:
January 14, 2000
Creator:
Taylor, J. S.
Object Type:
Report
System:
The UNT Digital Library
Sapulpa Daily Herald (Sapulpa, Okla.), Vol. 84, No. 105, Ed. 1 Friday, January 14, 2000
Daily newspaper from Sapulpa, Oklahoma that includes local, state, and national news along with advertising.
Date:
January 14, 2000
Creator:
unknown
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Social Security: Actuarial Projections of the Trust Funds
Correspondence issued by the General Accounting Office with an abstract that begins "Pursuant to a congressional request, GAO reviewed the Pricewaterhouse Coopers (PwC) report on the actuarial projections for the trust funds of the Old Age, Survivors, and Disability Insurance programs, focusing on whether the Social Security Administration's (SSA) Board of Trustees': (1) 1999 long-range intermediate actuarial projections--their best estimates--as presented in the Trustees' 1999 report are based on generally accepted actuarial methods and techniques and include economic and demographic assumptions that contain no material defects because of errors or omissions and are individually reasonable; and (2) sensitivity tests include all assumptions that could have a significant effect on the projections and are reasonable."
Date:
January 14, 2000
Creator:
United States. General Accounting Office.
Object Type:
Text
System:
The UNT Digital Library
Texas Register, Volume 25, Number 2, Pages 249-326, January 14, 2000
A weekly publication, the Texas Register serves as the journal of state agency rulemaking for Texas. Information published in the Texas Register includes proposed, adopted, withdrawn and emergency rule actions, notices of state agency review of agency rules, governor's appointments, attorney general opinions, and miscellaneous documents such as requests for proposals. After adoption, these rulemaking actions are codified into the Texas Administrative Code.
Date:
January 14, 2000
Creator:
Texas. Secretary of State.
Object Type:
Journal/Magazine/Newsletter
System:
The Portal to Texas History
Update on terrestrial ages of Antarctic meteorites
Terrestrial ages of Antarctic meteorites are one of the few parameters that will help us to understand the meteorite concentration mechanism on blue-ice fields. Traditionally, terrestrial ages were determined on the basis of {sup 36}Cl in the metal phase, which has an uncertainty of about 70 ky. For young meteorites (< 40 ky), the terrestrial age is usually and most accurately determined using {sup 14}C in the stone phase. In recent years two methods have been developed which are independent of shielding effects, the {sup 10}Be-{sup 36}Cl/{sup 10}Be method and the {sup 41}Ca/{sup 36}Cl method. These methods have reduced the typical uncertainties in terrestrial ages by a factor of 2, to about 30 ky. The {sup 10}Be-{sup 36}Cl/{sup 10}Be method is quite dependent on the exposure age, which is unknown for most Antarctic meteorites. The authors therefore also attempt to use the relation between {sup 26}Al and {sup 36}Cl/{sup 26}Al to derive a terrestrial age less dependent on the exposure age. The authors have measured the concentrations of cosmogenic {sup 10}Be, {sup 26}Al and {sup 36}Cl in the metal phase of {approximately} 70 Antarctic meteorites, from more than 10 different ice-fields, including many new ones. They then discuss the trends …
Date:
January 14, 2000
Creator:
Welten, K C; Nishiizumi, K & Caffee, M W
Object Type:
Article
System:
The UNT Digital Library
Use of EBSD Data in Numerical Analyses
Experimentation, theory and modeling have all played vital roles in defining what is known about microstructural evolution and the effects of microstructure on material properties. Recently, technology has become an enabling factor, allowing significant advances to be made on several fronts. Experimental evidence of crystallographic slip and the basic theory of crystal plasticity were established in the early 20th Century, and the theory and models evolved incrementally over the next 60 years. (Asaro provides a comprehensive review of the mechanisms and basic plasticity models.) During this time modeling was primarily concerned with the average response of polycrystalline aggregates. While some detailed finite element modeling (FEM) with crystal plasticity constitutive relations was done in the early 1980s, such simulations over taxed the capabilities of the available computer hardware. Advances in computer capability led to a flurry of activity in finite element modeling in the next 10 years, increasing understanding of microstructure evolution and pushing the limits of theories and material characterization. Automated Electron Back Scatter Diffraction (EBSD) has produced a similar revolution in material characterization. The data collected is extensive and many questions about the evolution of microstructure and its role in determining mechanic properties can now be addressed. It is …
Date:
January 14, 2000
Creator:
Becker, R & Wiland, H
Object Type:
Article
System:
The UNT Digital Library
Weapons of Mass Destruction in the Middle East
None
Date:
January 14, 2000
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Acceptance Test Procedure for New Pumping Instrumentation and Control Skid P
This Test Plan provides a test method to dedicate the leak detection relays used on the new Pumping Instrumentation and Control (PIC) skids. The new skids are fabricated on-site. The leak detection system is a safety class system per the Authorization Basis.
Date:
February 14, 2000
Creator:
Koch, M. R.
Object Type:
Report
System:
The UNT Digital Library
Acceptance Test Procedure for New Pumping Instrumentation and Control Skid Q
This Test Plan provides a test method to dedicate the leak detection relays used on the new Pumping Instrumentation and Control (PIC) skids. The new skids are fabricated on-site. The leak detection system is a safety class system per the Authorization Basis.
Date:
February 14, 2000
Creator:
Koch, M. R.
Object Type:
Report
System:
The UNT Digital Library
The Administration's Lands Legacy Initiative in the FY2001 Budget Proposal - A Fact Sheet
The fact sheet compares the FY2001 funding request for the Administration's Lands Legacy Initiative to the FY2000 request and the enacted FY2000 appropriation.
Date:
February 14, 2000
Creator:
Zinn, Jeffrey A.
Object Type:
Report
System:
The UNT Digital Library
Altus Times (Altus, Okla.), Vol. 100, No. 282, Ed. 1 Monday, February 14, 2000
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
February 14, 2000
Creator:
Bush, Michael
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Alvin Sun (Alvin, Tex.), Vol. 109, No. 14, Ed. 1 Monday, February 14, 2000
Weekly newspaper from Alvin, Texas that includes local, state, and national news along with advertising.
Date:
February 14, 2000
Creator:
Schwind, Jim & Holton, Kathleen
Object Type:
Newspaper
System:
The Portal to Texas History
Assessment of Energy Efficiency Project Financing Alternatives for Brookhaven National Laboratory
This document provides findings and recommendations that resulted from an assessment of the Brookhaven National Laboratory by a team from Pacific Northwest National Laboratory to assess the site's potential for various alternative financing options as a means to implement energy-efficiency improvements. The assessment looked for life-cycle cost-effective energy-efficiency improvement opportunities, and through a series of staff interviews, evaluated the various methods by which these opportunities may be financed, while considering availability of funds, staff, and available financing options. This report summarizes the findings of the visit and the resulting recommendations.
Date:
February 14, 2000
Creator:
Hunt, W. D.; Hail, John C. & Sullivan, Gregory P.
Object Type:
Report
System:
The UNT Digital Library
The Baytown Sun (Baytown, Tex.), Vol. 78, No. 91, Ed. 1 Monday, February 14, 2000
Daily newspaper from Baytown, Texas that includes local, state, and national news along with advertising.
Date:
February 14, 2000
Creator:
Cash, Wanda Garner
Object Type:
Newspaper
System:
The Portal to Texas History
Bicycle and Pedestrian Transportation Policies
This report discusses the Bicycle and Pedestrian Legislation, Intermodal Surface Transportation Efficiency Act Of 1991 (ISTEA), Transportation Equity Act for the 21st Century,and Funding under ISTEA and TEA21.
Date:
February 14, 2000
Creator:
Lipford, William A. & Harrison, Glennon J.
Object Type:
Report
System:
The UNT Digital Library