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Publication Extents

Not all publications have extents, not all extents are completely accurate
Computer-generated mineral commodity deposit maps
Paul G. Schruben, J. Thomas Hanley
1983, Open-File Report 83-410
This report describes an automated method of generating deposit maps of mineral commodity information. In addition, it serves as a user's manual for the authors' mapping system. Procedures were developed which allow commodity specialists to enter deposit information, retrieve selected data, and plot deposit symbols in any geographic area within...
A bibliography of stockwork molybdenite deposits and related topics (with an emphasis on the North American literature)
Celia H. Steigerwald, Felix E. Mutschler, Steve Ludington
1983, Open-File Report 83-382
This bibliography of 1117 citations brings together references on stockwork molybdenite deposits and related topics in a format that can be sorted by topic and(or) geographic area. Each reference is preceded by a key, or keys, which may be read and sorted visually or by computer, The bibliography is available...
Petrographic (thin section) notes on selected samples from hornblende-rich metamorphic terranes in the southernmost Sierra Nevada, California
Donald Clarence Ross
1983, Open-File Report 83-587
Medium- to high-grade metamorphic rocks that are commonly hornblende-rich, and probably largely of 'oceanic' affinity, are widespread in the southernmost Sierra Nevada, California. These metamorphic rocks are largely amphibolite, mafic and felsic gneiss, granofels, and hypersthene granulite The mineral assemblages suggest that these rocks are at least in part of...
Water resources in the Blackstone River basin, Massachusetts
Eugene H. Walker, Bruce E. Krejmas
1983, Open-File Report 83-700
The Blackstone River heads in brooks 6 miles northwest of Worcester and drains about 330 square miles of central Massachusetts before crossing into Rhode Island at Woonsocket. The primary source of the Worcester water supply is reservoirs, but for the remaining 23 communities in the basin, the primary source is wells. Bedrock...
Basic program "IPFLTR" for induced polarization data reduction and filtering
Hamdy S. Sadek
1983, Open-File Report 83-485
The recently developed induced polarization (IP) mapping technique can be successfully applied to IP dipole-dipole data and includes three types of filters that can be applied to IP pseudosections that have IP anomalies caused by different types of sources. The technique yields a single output value per station; this value...
Hornblende-rich, high grade metamorphic terranes in the southernmost Sierra Nevada, California, and implications for crustal depths and batholith roots
Donald Clarence Ross
1983, Open-File Report 83-465
The southernmost Sierra Nevaaa widely exposes hornblende-rich, gneissic to granoblastic, amphibolite- to granulite-grade, metamorphic rocks and associated magmatic rocks, all of mid-Cretaceous age. Locally, red garnet, in part in euhedral crystals as large as 10 cm, as well as strongly pleochroic hyperstnene, characterize these rocks. These hornblende-rich rocks dominate the...
Surface water and climatologic data, Salt Lake County, Utah, water year 1981, with selected data for water years 1980 and 1982
H.F. McCormack, R.C. Christensen, D. W. Stephens, G. E. Pyper, J. F. Weigel, L.S. Conroy
1983, Open-File Report 83-694
This report contains precipitation, atmospheric-deposition, water- discharge and water-quality data collected in Salt Lake County as part of two investigations by the U.S. Geological Survey. The purpose of this report is to release data collected mainly during the 1981 water year. Selected data collected during the 1980 water year not...
A statistical summary of data from the U.S. Geological Survey's national water quality networks
R. A. Smith, R. B. Alexander
1983, Open-File Report 83-533
The U.S. Geological Survey Operates two nationwide networks to monitor water quality, the National Hydrologic Bench-Mark Network and the National Stream Quality Accounting Network (NASQAN). The Bench-Mark network is composed of 51 stations in small drainage basins which are as close as possible to their natural state, with no human...