Quadrangle

The decrease in petroleum and natural gas reserves has encouraged interest in and discovery and development of unconventional sources of these hydrocarbons. Principal alternatives to conventional petroleum reserves include oil shale (qv) and tar sands (qv). Oil shale reserves in the United States are estimated at 20,000 EJ (19.4 x 10 Btu) and estimates of tar sands and oil sands reserves are on the order of 11 EJ (10 x 10 Btu) (see Tarsands Shale oil). Of particular interest are the McKittrick, EeUows, and Taft quadrangles of Cahfomia, the Asphalt Ridge area of Utah, the Asphalt, Kentucky area, and related geographic regions. 

R. C. Evans, The Technology of the Tetray dines. Quadrangle Press, New York, 1968. 

Fig. 13. Common cell patterns ia gravure coating (a) quadrangle (b) pyramid and (c) trihelical (2).

Read and record the latitude and longitude for the southeast comer of the small quadrangle drawn In step two. The latitude and longitude are printed at the edges of the map. 

Richard Farris, Health Decisions, Inc. 6350 Quadrangle Drive, Suite 300, Chapel Hill, NC 27517, USA. (rfarris healthdec.com). 

Data on the geographic distribution of surficial radium concentrations were acquired by the National Airborne Radiometric Reconnaissance (NARR) survey, part of the National Uranium Resource Evaluation (NURE) program conducted by the U.S. Department of Energy in the mid-1970s. The data were originally collected and tabulated by 1° by 2° quadrangle map area, and the data cover approximately 450 out of a total of 474 such quadrangles... 

Data on surface radium concentrations has been compiled for 394 of the 474 quadrangles covering the conterminous 48 states. The resulting distribution is illustrated in Figure 2, where the parameters shown for the distribution are calculated from the binned data. This distribution has a GM of 25 Bq kg and geometric standard deviation (GSD) of 1.75. Based on this distribution, approximately 20% of the surface radium concentration data are above 40 Bq kg and 0.7% are above 100 Bq kg... 

Figure 2. Distribution of the surface radium concentration data from the National Airborne Radiometric Reconnaissance survey for 394 1° by 2° quadrangles covering most of the contiguous 48 states. The distribution parameters are calculated from the data and the lognormal distribution based on the geometric mean., and standard deviation from the data is shown as a solid curve.

Figure 3. Distribution of surface radium concentrations for a quadrangle (a) with a GM < 20 Bq kg and for a quadrangle (b) with a GM > 40 Bq kg. The curves represent lognormal distributions based on the distribution parameters calculated from the data.

Hulin, C. D., Geology and Ore Deposits of the Randsburg Quadrangle, Cal., Calif. State Mining Bureau Bull., 95, pp. 62-64, 1925. 

Klein, H. D., The Technical Trade Secret Quadrangle A Survey, Northwest. Univ. Law Rev. (1960) 55,437. 

Vandenberg, A. 1974. Melbourne Sheet SI 55-1. Geological Map. Scale 1 63,360. Lower half of Melbourne (7822) 30x30 minute Quadrangle. Geological Survey of Victoria. 

Geology of the studied area was derived from 1 250,000 scale geologic maps of the Lake Clark and lliamna quadrangles (Wilson et al. 2006). These data contain attribute information that identifies lithologic units and their ages. Subsets were made of all igneous rock types from Late Cretaceous through Tertiary. 

Bickerstaff, D. 1998. Alaska resource data file. Lake Clark quadrangle, Alaska. U.S. Geological Survey Open-File Report 1998-359, 109 p. 

Make a round circle out of the man and woman, and draw out of it a quadrangle, and out of the quadrangle a triangle, make a round circle, and thou shalt have the Stone of the Philosophers.1... 

Krochmal, A., and C. Krochmal. Medicinal plants of the United States. Quadrangle, the New York Times Book Co., New York 1973. 

The rock samples on which the study was based were obtained principally in the Mt. Union 15-minute Quadrangle, Huntingdon and Mifflin Counties, Pa. Figure 1 represents a reconnaissance geologic map of the Quadrangle prepared by the writer and shows where most of the samples were obtained. A list of the locations of the samples and of measured sections from which they were obtained is given in the Appendix. 

Relationship of Organic Residues to Sedimentary Environments in Mt. Union Quadrangle... 

Beekmantown Dolomite, Lower Ordovician, 1 mile northeast of Airy-dale, Mt. Union Quadrangle. 

Reedsville Shale, Middle Ordovician, Jacks Mountain Gap, 1 mile east of Mapleton, Mt. Union Quadrangle. 

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