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Mafic and Ultramafic Xenoliths from Volcanic Rocks of the Western United States

Description: From abstract: Mafic and ultramafic xenoliths in the Western United States are present in volcanic rocks ranging from lamprophyric to dacitic in composition and are found in every major tectonic province from the Coast ranges from California to the Great Plains. Xenoliths from 68 localities are described here, but new localities are being discovered, and much remain to be learned about their distribution with respect to the tectonic and geophysical framework of the Western United States.
Date: 1988
Creator: Wilshire, Howard Gordon; Meyer, C. E.; Nakata, John K.; Calk, L. C.; Shervais, John W.; Nielson, J. E. et al.
Location: None
Partner: UNT Libraries Government Documents Department
open access

Muscovite in the Spruce Pine District, North Carolina

Description: From Abstract: "This report describes the occurrence of the mica and its physical properties among which is an unusually wide range of colors. A table is presented showing the results of power-factor measurements made by the National Bureau of Standards on 196 samples of sheet mica from 109 mica mines and 15 feldspar mines.It is concluded that more systematic planning of mica mining, for the district as a whole. would result in an average yearly production of at least 90,000 pounds of relativel… more
Date: 1942
Creator: Kesler, Thomas L. (Thomas Lingle), 1908-1997 & Olson, J. C. (Jerry Chipman), 1917-2013
Partner: UNT Libraries Government Documents Department
open access

How Healthy is the Upper Trinity River?: Biological and Water Quality Perspectives

Description: This conference report contains discussions and papers from a symposium hosted at Texas Christian University, in Fort Worth, Texas, examining the ecological health of the Upper Trinity River, and the impacts of various human activity, such as agriculture, urbanization, and waste management. The papers cover the effect of water quality on urban rivers, long-term water quality trends in the Trinity River, solutions that may improve water quality in the river, as well as biological, agricultural … more
Date: 1990
Creator: Jensen, Ric
Partner: UNT Libraries

Coos Bay, Oregon

Description: Map showing biological resources (aquatic organisms, terrestrial organisms, land use, etc.) in the Coos Bay region of the Pacific coast area. Scale 1:250,000.
Date: 1981
Creator: U.S. Fish and Wildlife Service
Location: None
Partner: UNT Libraries Government Documents Department

Ukiah, California

Description: Map showing biological resources (aquatic organisms, terrestrial organisms, land use, etc.) in the Ukiah region of the Pacific coast area. Scale 1:250,000.
Date: 1981
Creator: U.S. Fish and Wildlife Service
Location: None
Partner: UNT Libraries Government Documents Department

Eureka, California

Description: Map showing biological resources (aquatic organisms, terrestrial organisms, land use, etc.) in the Eureka region of the Pacific coast area. Scale 1:250,000.
Date: 1981
Creator: U.S. Fish and Wildlife Service
Location: None
Partner: UNT Libraries Government Documents Department

San Diego, California

Description: Map showing biological resources (aquatic organisms, terrestrial organisms, land use, etc.) in the San Diego region of the Pacific coast area. Scale 1:250,000.
Date: 1981
Creator: U.S. Fish and Wildlife Service
Location: None
Partner: UNT Libraries Government Documents Department

Deepwater Horizon Response: Gulf of Mexico Oil Spill Response

Description: This website served as the focal point for the Deepwater Horizon Unified Command, a group of organizations that had involvement with the British Petroleum (BP) explosion and oil spill that occurred in the Gulf of Mexico in April 2010. The website includes news feeds and information about health concerns, volunteer opportunities, contact information, and ongoing plans for the area. Various maps of the event and other resources are also available, chronicling the problem and the steps taken by … more
Date: September 10, 2010
Creator: Deepwater Horizon Unified Command
Partner: UNT Libraries Government Documents Department
open access

Petroleum Engineering Study of the West Red River Field, Tillman County, Oklahoma

Description: Report issued by the Bureau of Mines over studies conducted on petroleum engineering in Oklahoma. Details of the drilling operations are presented. This report includes tables, maps, and illustrations.
Date: March 1949
Creator: Hill, H. B.; Johnston, Kenneth H.; Coleman, T. L. & Seward, J. M.
Partner: UNT Libraries Government Documents Department
open access

A U.S. Carbon Cycle Science Plan

Description: Report assessing the carbon cycle and providing guidance for U.S. researchers. It includes background on the history and context of the carbon cycle and previous science plan as well as chapters describing relevant fundamental science questions, science plan goals, the plan elements, interdisciplinary and international collaboration and cooperation, implementation and funding of the plan, and references with supplementary appendix information.
Date: August 2011
Creator: Michalak, Anna M.; Jackson, Robert B.; Marland, Gregg & Sabine, Christopher L.
Partner: UNT Libraries
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