The karst landforms of Puerto Rico
Watson H. Monroe
1976, Professional Paper 899
Puerto Rico has a great variety of landforms developed by solution of limestone under tropical climatic conditions. Karst topography is present in most parts of Puerto Rico where limestone crops out, but it is more highly developed in the northern and northwestern parts, which are underlain by thick limestone formations of Oligocene and Miocene age....
Preliminary aeromagnetic maps of Nevada City and Alleghany 15-minute quadrangles, California
Water Resources Division, U.S. Geological Survey
1976, Open-File Report 76-274
No abstract available....
Aeromagnetic map for part of northwestern Lund 1° by 2° quadrangle, Nevada
Water Resources Division, U.S. Geological Survey
1976, Open-File Report 76-362
No abstract available....
Aeromagnetic map for part of southwestern Ely 1° by 2° quadrangle, Nevada
Water Resources Division, U.S. Geological Survey
1976, Open-File Report 76-360
No abstract available....
Audio-magnetotelluric data log, station location map, and skin depth pseudo-sections, Crater Hot Springs Known Geothermal Resources Area, Utah
R. Michael Senterfit, G. M. Bedinger
1976, Open-File Report 76-245
Audio-magnetotelluric data log and station location map for the Klamath Falls Known Geothermal Resource Area, Oregon
R. Michael Senterfit, G. M. Bedinger
1976, Open-File Report 76-320
Puerto Rice seismic program seismological data report, August 16, 1974-June 30, 1975
David L. Carver, Lana M. Turner, Arthur C. Tarr
1976, Open-File Report 76-369
Audio-magnetotelluric data log and station location map for the Dixie Valley Known Geothermal Resource Area (KGRA), Nevada
R. Michael Senterfit, Donald B. Hoover, Charles L. Tippens
1976, Open-File Report 76-292
A probabilistic estimate of maximum acceleration in rock in the contiguous United States
Sylvester Theodore Algermissen, David M. Perkins
1976, Open-File Report 76-416
This paper presents a probabilistic estimate of the maximum ground acceleration to be expected from earthquakes occurring in the contiguous United States. It is based primarily upon the historic seismic record which ranges from very incomplete before 1930 to moderately complete after 1960. Geologic data, primarily distribution of faults, have...
Principal facts for gravity stations in the Carson Sink region, Nevada
R. R. Wahl, Donald L. Peterson
1976, Open-File Report 76-344
Aeromagnetic map of the Bristol quadrangle, Bristol, Kent, Newport and Providence Counties, Rhode Island
Water Resources Division, U.S. Geological Survey
1976, Open-File Report 76-224
No abstract available....
Possible methods of measuring uranium and its radioactive products in solutions
F. E. Senftle
1976, Open-File Report 76-305
CABFAC/USGS, a FORTRAN program for Q-mode factor analysis of stratigraphically ordered samples
David P. Adams
1976, Open-File Report 76-216
This program is a revision of the CABFAC program of Kovan and Imbrie (1971) which incorporates the following improvements: each factor is plotted against depth on the printer; samples are ordered stratigraphically by the program, so that input data need not be ordered stratigraphically; an option has been added to...
Microfossil correlation of California lower Tertiary sections; a comparison
Richard Z. Poore
1976, Professional Paper 743-F
Simple Bouguer gravity anomaly map of the Gulf of Mexico and adjacent land areas
H.L. Krivoy, H.C. Eppert Jr., T.E. Pyle
1976, Geophysical Investigations Map 912
No abstract available....
Assessment of effects of altered stream flow characteristics on fish and wildlife, Part A: Rocky Mountains and pacific Northwest; Pacific Northwest region case studies
W. Nelson, G. Horak, A. Hale, Z. Parkhurst, M. Lewis, D. Wagaman, E. Hoban, J. Colt
1976, FWS/OBS 76/31
Results of geochemical investigations comparing samples of stream sediment, panned concentrate, and vegetation in the vicinity of the Caridad porphyry copper deposit, northern Sonora, Mexico
Maurice A. Chaffee, J. Lee-Moreno, L.F. Caire, E. L. Mosier, J. G. Frisken
1976, Open-File Report 76-559
Geologic map of the Avella quadrangle and part of the Steubenville East Quadrangle, Washington County, Pennsylvania
S. P. Schweinfurth
1976, IMAP 908
Potential hazards from future eruptions of Mount St. Helens volcano, Washington
Dwight Raymond Crandell, Donal Ray Mullineaux
1976, Open-File Report 76-491
Salt-water encroachment in aquifers near the Houston Ship Channel, Texas
Donald G. Jorgensen
1976, Open-File Report 76-781
Interpretations based on analyses of inorganic constituents, dissolved organic carbon, and tritium in ground water and surface waters indicate that the Houston Ship Channel is the source of salt water that has been detected in shallow wells between Baytown and Houston, Texas. Analyses of the ratios of the stable isotopes...
Natural conditions that control landsliding in the San Francisco Bay region: An analysis based on data from the 1968-69 and 1972-73 rainy seasons
Tor Helge Nilsen, Fred A. Taylor, Robert M. Dean
1976, Bulletin 1424
No abstract available....
Changes in the fish population of Lewis and Clark Lake, 1956-74, and their relation to water management and the environment
Charles H. Walburg
1976, Research Report 79
Petrogenic significance of minor elements in pyritic core from the Wadi Wassat massive sulfide deposit, Kingdom of Saudi Arabia
William C. Overstreet, A.E. Hubert, G. L. Crenshaw, E. L. Mosier
1976, Open-File Report 76-863
Flood-frequency analysis for small natural streams in Georgia
Harold G. Golden, McGlone Price
1976, Open-File Report 76-511
Flood information from 104 project basins (0.1 to 20 square miles) and data available from 170 larger basins (20 to 1,500 square miles) are analyzed to provide planners and designers with relations for estimating the magnitude and frequency of flood-peak discharges on small natural streams in Georgia. More than 90...
Audio-magnetotelluric station location map, Geysers-Calistoga Known Geothermal Resource Area, California
Carl L. Long, R. Michael Senterfit
1976, Open-File Report 76-700-D
