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Fundamental Science Practices

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Filter Total Items: 9502

Map showing trace-metal content and texture of surficial bottom sediments in the Port Isabel 1 degree x 2 degrees quadrangle, Texas

No abstract available.

Map showing water circulation and rates of sedimentation in the Port Isabel 1 degree by 2 degrees quadrangle, Texas

No abstract available.

Maps for assessing thermal maturity (conodont color alteration index maps) in Ordovician through Triassic rocks in Nevada and Utah and adjacent parts of Idaho and California

No abstract available.

Maps showing aeromagnetic survey and interpretation of the Virgin Mountains Instant Study Area Clark County, Nevada

Data for the aeromagnetic map (fig. 1) of the Virgin Mountains Instant Study Area wre collected in 1978 and compiled at a scale of 1:62,500. North-south traverses were spaced at 0.8-km intervals at an altitude of about 300m above the surface of the ground. The contour interval is 20 and 100 gammas, depending on the steepness of local magnetic gradients in the Earth's magnetic field. A regional fie

Maps showing coal resources of the Crumpler quadrangle, Mercer, McDowell, and Wyoming Counties, West Virginia

Coal GeologyThe Crumpler quadrangle lies in the Appalachian Plateaus province, with the coal bearing Pocahontas and New River Formations of Pennsylvanian age having a gentle dip toward the northwest. Coal bed maps were prepared (figures 1-7) and resources were estimated (table 1) for seven of the many coal beds in the Crumpler quadrangle (Stricker, 1980, lists the names of the various coal beds in

Maps showing coal resources of the Jewell Bridge Quadrangle, Buchanan and Tazewell counties, Virginia

Coal of low-volatile to high-volatile A bituminous rank is the principal developed mineral resource in the Jewell Ridge quadrangle.  The coal beds in the Jewell Ridge quadrangle contain total estimated original resources of 1,519 million tons.  Of this total, 108 million tons have been mined or lost in mining, leaving 1,411 million tons of remaining resources.  Table 1 lists coal resource estimate

Maps showing coal resources of the Shady Spring Quadrangle, Raleigh and Summers counties, West Virginia

No abstract available.

Maps showing composition of surficial sediments on the insular shelf of southwestern Puerto Rico

The limited availability of onshore sand deposits for use in construction appears to be a future major problem in Puerto Rico (U.S. Bureau of Mines, 1972; Committee on Puerto Rico and the Sea, 1974). Consequently, the mining of offshore sand deposits as supplemental sources of construction aggregate may becom e necessary. For this reason, the U.S. Geological Survey and the Department of Natural Re

Maps showing environmental conditions relating to potential geologic hazards on the United States northeastern Atlantic continental margin

No abstract available.

Maps showing geologic and hydrologic factors affecting land-use planning in Fairfax County, Virginia

No abstract available.

Maps showing geology and geochemical sample localities, Pine Creek (RARE II) area, Harney County, Oregon

No abstract available.

Maps showing geology and liquefaction potential of northern Monterey and southern Santa Cruz counties, California

No abstract available.
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