Data set of world phosphate mines, deposits, and occurrences: Part A. Geologic data. Part B. Location and mineral economic data
Carlotta B. Chernoff, G. J. Orris
2002, Open-File Report 2002-156
An inventory of more than 1,600 world phosphate mines, deposits, and occurrences was compiled from smaller data sets collected as part of multiple research efforts by Carlotta Chernoff, University of Arizona, and Greta Orris, U.S. Geological Survey. These data have been utilized during studies of black shale depositional environments and...
Preliminary data from analysis of base-flow separation in part of the Republican River Basin, Nebraska, Kansas, and Colorado
Matthew K. Landon, Virginia L. McGuire
2002, Open-File Report 2002-240
Topographic map of Mars M 25M RKN
Water Resources Division, U.S. Geological Survey
2002, Open-File Report 2002-282
NOTES ON BASE This map is based on data from the Mars Orbiter Laser Altimeter (MOLA) (Smith and others, 2001), an instrument on NASA's Mars Global Surveyor (MGS) spacecraft (Albee and others, 2001). The image used for the base of this map represents more than 600 million measurements gathered between 1999...
Hawaiian Volcano Observatory summary 101: Part 1, seismic data, January to December 2001
Jennifer S. Nakata, C. Heliker
2002, Open-File Report 2002-157
The Hawaiian Volcano Observatory (HVO) summary presents seismic data gathered during the year and a chronological narrative describing the volcanic events. The seismic summary is offered without interpretation as a source of preliminary data. It is complete in the sense that all data for events of M>1.5 routinely gathered by...
Digital version of "Open-File Report 92-181: Geologic map of the Indian Spring quadrangle, San Bernardino County, California"
Howard G. Wilshire, David R. Bedford, Teresa Coleman
2002, Open-File Report 2002-272
This is a digital map database version of a previous printed geologic map, U.S. Geological Survey Open-File Report 92–181. The original paper map has been faithfully reproduced as a geologic map database for use in a GIS, and thus does not contain updated geologic information for the map area. This...
Digital version of "Open-File Report 92-182: Geologic map of the Marl Mountains quadrangle, San Bernardino County, California"
Howard G. Wilshire, David R. Bedford, Teresa Coleman
2002, Open-File Report 2002-271
This is a digital map database version of a previous U.S. Geological Survey Open-File Report, OF92-182. It contains 3 Arc/Info formatted coverages, distributed in Arc Interchange format, a plottable map representation of the database at 1:24,000 scale in Postscript and Adobe PDF formats, and the original map explanation pamphlet in...
Aeromagnetic surveys in the Anchorage, Iliamna, and Tyonek quadrangles, Alaska: A website for the distribution of data
Water Resources Division, U.S. Geological Survey
2002, Open-File Report 2002-267
No abstract available. ...
Schlumberger soundings at the Amargosa Desert Research Site, Nevada
Robert J. Bisdorf
2002, Open-File Report 2002-140
In 1999 the U.S. Geological Survey made 38 direct current (dc) electrical soundings at the Amargosa Desert Research Site (ADRS) near Beatty, Nevada (fig. 1.) using the Schlumberger array. An additional 16 Schlumberger soundings were made in 2000. The soundings were made to determine the subsurface resistivity distribution, and the...
Statistical tables and charts showing geochemical variation in the Mesoproterozoic Big Creek, Apple Creek, and Gunsight formations, Lemhi group, Salmon River Mountains and Lemhi Range, central Idaho
David A. Lindsey, Russell G. Tysdal, Joseph E. Taggart Jr.
2002, Open-File Report 2002-310
The principal purpose of this report is to provide a reference archive for results of a statistical analysis of geochemical data for metasedimentary rocks of Mesoproterozoic age of the Salmon River Mountains and Lemhi Range, central Idaho. Descriptions of geochemical data sets, statistical methods, rationale for interpretations, and references to...
Toxic substances from coal combustion - A comprehensive assessment, phase II: Element modes of occurrence for the Ohio 5/6/7, Wyodak, and North Dakota coal samples
Allan Kolker, Stanley J. Mroczkowski, Curtis A. Palmer, Kristen O. Dennen, Robert B. Finkelman, John H. Bullock Jr.
2002, Open-File Report 2002-224
No abstract available....
Results of the U. S. Geological Survey's Analytical Evaluation Program for Standard Reference Samples Distributed in March 2002
M.T. Woodworth, B.F. Conner
2002, Open-File Report 2002-243
This report presents the results of the U.S. Geological Survey's analytical evaluation program for six standard reference samples -- T- 169 (trace constituents), M- 162 (major constituents), N-73 (nutrient constituents), N-74 (nutrient constituents), P-38 (low ionic-strength constituents), and Hg-34 (mercury) -- that were distributed in March 2002 to laboratories enrolled...
Potentiometric surface of the upper Floridan aquifer, west-central Florida, September 2001
A. D. Duerr
2002, Open-File Report 2002-188
No abstract available....
Analysis of magnetotelluric profile data from the Ruby Mountains metamorphic core complex and southern Carlin Trend region, Nevada
Philip E. Wannamaker, William M. Doerner, John A. Stodt, Timothy L. Sodergen, Brian D. Rodriguez
2002, Open-File Report 2002-214
We have collected about 150 magnetotelluric (MT) soundings in northeastern Nevada in the region of the Ruby Mountains metamorphic core complex uplift and southern Carlin mineral trend, in an effort to illuminate controls on core complex evolution and deposition of world-class gold deposits. The region has experienced a broad range...
Merged digital aeromagnetic data for the middle Rio Grande and southern Espanola basins, New Mexico
Ronald E. Sweeney, V. J. S. Grauch, Jeffrey D. Phillips
2002, Open-File Report 2002-205
The U. S. Geological Survey (USGS) recently conducted a multi-disciplinary study of the Middle Rio Grande basin (Bartolino and Cole, 2002; Fig. 1). The main purpose of this study was to gain a better multi-dimensional understanding of the basin's hydrogeologic framework and use this new understanding to construct an improved...
Environmental Database For Water-Quality Data for the Penobscot River, Maine: Design Documentation and User Guide
Sarah E. Giffen
2002, Open-File Report 2001-485
An environmental database was developed to store water-quality data collected during the 1999 U.S. Geological Survey investigation of the occurrence and distribution of dioxins, furans, and PCBs in the riverbed sediment and fish tissue in the Penobscot River in Maine. The database can be used to store a wide range...
Historical Ice-Out Dates for 29 Lakes in New England
Glenn A. Hodgkins, Ivan C. James III
2002, Open-File Report 2002-34
Historical ice-out dates for 29 lakes in New England were compiled and are presented in this report. The length of record for the lakes ranges from 64 to 163 years, with an average of 108 years. Many lakes in New England had their latest recorded ice-out date in 1888. Ice-out...
Software user's guide for determining the Pennsylvania scour critical indicator code and streambed scour assessment rating for roadway bridges
M.F. Henneberg, J. L. Strause
2002, Open-File Report 2001-446
This report presents the instructions required to use the Scour Critical Bridge Indicator (SCBI) Code and Scour Assessment Rating (SAR) calculator developed by the Pennsylvania Department of Transportation (PennDOT) and the U.S. Geological Survey to identify Pennsylvania bridges with excessive scour conditions or a high potential for scour. Use of...
Report for borehole explosion data acquired in the 1999 Los Angeles Region Seismic Experiment (LARSE II), southern California: Part II, data tables and plots
Janice M. Murphy, Gary S. Fuis, D. A. Okaya, Kristina Thygesen, Shirley A. Baher, Trond Rybert, Galen Kaip, Michael D. Fort, Isa Asudeh, Russell Sell
2002, Open-File Report 2002-179
The Los Angeles Region Seismic Experiment (LARSE), a joint project of the U.S. Geological Survey (USGS) and the Southern California Earthquake Center (SCEC), was conducted to produce seismic images of the subsurface in the Los Angeles region. Primary targets were major fault systems and sedimentary basins; the goal of the...
Potentiometric surfaces of the intermediate aquifer system, west-central Florida, September 2001
A. D. Duerr
2002, Open-File Report 2002-187
No abstract available....
Potentiometric surface of the upper Floridan aquifer in the St. Johns River Water Management District and vicinity, Florida, September 2001
Leel Knowles Jr., Sandra L. Kinnaman
2002, Open-File Report 2002-182
Positional Accuracy of Airborne Integrated Global Positioning and Inertial Navigation Systems for Mapping in Glen Canyon, Arizona
Richard D. Sanchez, Larry D. Hothem
2002, Open-File Report 2002-222
High-resolution airborne and satellite image sensor systems integrated with onboard data collection based on the Global Positioning System (GPS) and inertial navigation systems (INS) may offer a quick and cost-effective way to gather accurate topographic map information without ground control or aerial triangulation. The Applanix Corporation?s Position and Orientation Solutions...
Multielement geochemical dataset of surficial materials for the northern Great Basin
Mary Jane Coombs, Boris B. Kotlyar, Steve Ludington, Helen W. Folger, Victor G. Mossotti
2002, Open-File Report 2002-227
This report presents geochemical data generated during mineral and environmental assessments for the Bureau of Land Management in northern Nevada, northeastern California, southeastern Oregon, and southwestern Idaho, along with metadata and map representations of selected elements. The dataset presented here is a compilation of chemical analyses of over 10,200 stream-sediment...
FD_BH: a program for simulating electromagnetic waves from a borehole antenna
Karl J. Ellefsen
2002, Open-File Report 2002-276
Program FD_BH is used to simulate the electromagnetic waves generated by an antenna in a borehole. The model representing the antenna may include metallic parts, a coaxial cable as a feed to the driving point, and resistive loading. The program is written in the C programming language, and the program...
Preliminary geologic map of the Redman Quadrangle, Los Angeles and Kern counties, California
A. W. Ward, G. L. Dixon
2002, Open-File Report 93-695
Stratigraphy of the Proterozoic Revett Formation, Coeur d'Alene District, Idaho
Jeffrey L. Mauk
2002, Open-File Report 2001-319
The Proterozoic Revett Formation of the Belt Supergroup contains three informal members that can be identified throughout the Coeur d'Alene mining district of northern Idaho. The lower Revett Formation is dominated by quartzite, but also contains intervals of siltite. The middle Revett consists predominantly of siltite, though quartzite and argillite...
