Search Results

open access

The Shelf-Slope Transition-Canyon and Upper Slope Sedimentary Processes on the Southern Margin of Georges Bank

Description: A report about sedimentary processes on the southern margin of Georges Bank which is based on observations from research submersibles of bottom features, on size analyses of sediment samples, and on measurements of current strength and flow direction.
Date: 1987
Creator: Valentine, Page C.
Partner: UNT Libraries Government Documents Department
open access

Earthquakes in California in 1896 and 1897

Description: A report that contains the records of all the shocks observed or felt on Mount Hamilton and all those reported to the Lick Observatory by letter, as well as newspaper reports of such earthquakes.
Date: 1898
Creator: Perrine, Charles D.
Partner: UNT Libraries Government Documents Department
open access

Nomenclature of Precambrian Rocks in Colorado

Description: Abstract: "The Precambrian rocks of Colorado consist of a metaphoric complex more than 1,700 million years in age, three groups of igneous rocks about 1,700, 1,400, and 1,000 million years in age, here designated informal age groups, and two areally restricted units of sedimentary rocks, one between 1,400 and 1,700 million years in age and one between 950 and 1,400 million years. A systematic nomenclature for many of the rocks does not exist, but the present state of knowledge will permit estab… more
Date: 1977
Creator: Tweto, Ogden
Partner: UNT Libraries Government Documents Department
open access

Coal Resources of the United States

Description: A report about the United States's coal supply. The U.S. has 25 percent of the world's identified coal resources and about 20 percent of the world's estimated total coal resources.
Date: January 1, 1974
Creator: Averitt, Paul
Partner: UNT Libraries Government Documents Department
open access

Geologic, Geochemical, and Isotopic Studies of a Carbonate- and Siliciclastic-Hosted Pb-Zn Deposit at Lion Hill, Vermont

Description: A report about the potential for Irish-type Pb-Zn deposits in a platform rocks of western Vermont; however, at Lion Hill they contain enrichments of Pb, Zn, and Cu rather than a Pb, Zn, and Ag association.
Date: 1995
Creator: Foley, Nora K.; Clark, Sandra H. B.; Woodruff, Laurel G. & Mosier, Elwin L.
Partner: UNT Libraries Government Documents Department
open access

Laccolith Complexes of Southeastern Utah: Time of Emplacement and Tectonic Setting - Workshop Proceedings

Description: This report summarizes much of the materials presented at the workshop and provides an extensive list of selected references pertaining to geochronology and tectonics of the Colorado Plateau to facilitate further research.
Date: 1998
Creator: Friedman, Jules D. & Huffman, A. Curtis, Jr.
Partner: UNT Libraries Government Documents Department
open access

Earthquakes in California in 1893

Description: A report about recorded shock waves observed or felt on Mount Hamilton, and all those reported to the Lick Observatory by letter, as well as newspaper reports of such earthquakes that occurred in California during that year.
Date: 1894
Creator: Perrine, Charles D.
Partner: UNT Libraries Government Documents Department
open access

Earthquakes in California in 1892

Description: The following report contains all of the shocks observed or felt on Mount Hamilton in 1892, and all those reported to the Lick Observatory by letter, as well as newspaper reports of earthquakes.
Date: 1893
Creator: Perrine, Charles D.
Partner: UNT Libraries Government Documents Department
Back to Top of Screen