Biology of larval and metamorphosing sea lampreys, Petromyzon marinus, of the 1960 year class in the Big Garlic River, Michigan, Part II, 1966-72
Patrick J. Manion, Bernard R. Smith
1978, Technical Report 30
The 1960 year class of sea lampreys, Petromyzon marinus, isolated in a tributary of southern Lake Superior continued to yield information on the early life history of the sea lamprey. The larval population persisted and newly metamorphosed individuals were captured from 1966 until the study was terminated in 1972. The...
Preservation of cycad and Ginkgo pollen
N. O. Frederiksen
1978, Review of Palaeobotany and Palynology (25) 163-179
Pollen grains of Ginkgo, Cycas, and Encephalartos were chemically treated together with pollen of Quercus, Alnus, and Pinus, the latter three genera being used as standards. The experiments showed that: (1) boiling the pollen for 8-10 hours in 10% KOH had little if any effect on any of the grains;...
An automated procedure for the simultaneous determination of specific conductance and pH in natural water samples
D. E. Eradmann, Howard E. Taylor
1978, Analytica Chimica Acta (99) 269-274
An automated, continuous-flow system is utilized to determine specific conductance and pH simultaneously in natural waters. A direct electrometric procedure is used to determine values in the range pH 4–9. The specific conductance measurements are made with an electronically modified, commercially available conductivity meter interfaced to a separate module containing...
Origin of major element chemical trends in DSDP Leg 37 basalts, Mid-Atlantic Ridge
G. R. Byerly, T. L. Wright
1978, Journal of Volcanology and Geothermal Research (3) 229-279
In this paper we summarize the major element chemical variation for basalts from the Deep Sea Drilling Project Leg 37 and relate it to stratigraphic position in each of five drilling sites. Least-squares techniques are successfully used to quantify the nature and extent of alteration in these basalts, and to...
Radioactive disequilibrium in altered mid-oceanic basalts
M.P. Bacon
1978, Earth and Planetary Science Letters (39) 250-254
A young (<1 m.y.) tholeiitic basalt dredged from the Mid-Atlantic Ridge displays a234U excess and a230Th deficiency that have resulted from the addition of seawater uranium during weathering at seafloor temperatures. Two older samples, though they acquired substantial amounts of uranium...
Earthquake history of Wisconsin
C. A. von Hake
1978, Earthquake Information Bulletin (USGS) (10) 100-103
Only one earthquake of intensity V on the Modified Mercalli Intensity Scale (MM) or greater has occurred within Wisconsin during historic times. Some shocks originating in Illinois, Michigan, Missouri, Ohio, and Canada have been felt. ...
Prediction without precursors; seismic slip along the Calaveras Fault, northern California
C. G. Bufe, Philip W. Harsh, Robert O. Burford
1978, Earthquake Information Bulletin (USGS) (10) 12-15
Geology and ground water in Door County, Wisconsin, with emphasis on contamination potential in the Silurian dolomite
Marvin G. Sherrill
1978, Water Supply Paper 2047
Door County is in northeastern Wisconsin and is an area of 491 square miles. The county forms the main body of the peninsula between Green Bay and Lake Michigan. The land surface is an upland ridge controlled by the underlying bedrock. The west edge of the ridge forms an escarpment...
Earthquake history of West Virginia
C. A. von Hake
1978, Earthquake Information Bulletin (USGS) (10) 62-64
Aeromagnetic map of northeastern Nevada
Water Resources Division, U.S. Geological Survey
1978, Open-File Report 78-280
No abstract available....
Selected ground-water data, Bonneville Salt Flats and Pilot Valley, western Utah
Gregory C. Lines
1978, Utah Basic-Data Release 30
This report contains ground-water data collected at wells and springs on the Bonneville Salt Flats and in Pilot Valley, western Utah. Most of the data were collected during a study of the hydrology and surface morphology of these two salt-crust areas during the period July 1975 - June 1977. The...
Hydrologic Unit Map-1978, state of South Dakota
Water Resources Division, U.S. Geological Survey
1978, Hydrologic Unit 41
This map and accompanying table show Hydrologic Unites that are basically hydrographic in nature. The Cataloging Unites shown supplant the Cataloging Units previously depicted n the 1974 State Hydrologic Unit Map. The boundaries as shown have been adapted from the 1974 State Hydrologic Unit Map, "The Catalog of Information on...
Principal facts and profiles of gravity data from parts of Meade, Pennington, Haakon, and Jackson Counties, South Dakota
Donald L. Peterson, Jerry H. Hassemer
1978, Open-File Report 78-198
No abstract available....
Landslides and related features, Ohio, West Virginia and Pennsylvania [Clarksburg quadrangle]
Robert J. Hackman, Roger E. Thomas
1978, Open-File Report 78-1056
No abstract available....
Map of the Antelope Valley-East Kern Water Agency area, California, showing ground-water subunits and areas and well hydrographs
C. E. Lamb, M. J. McIntyre
1978, Open-File Report 78-435
The U.S. Geological Survey has released to the open file a map, scale 1:125,000, showing ground-water subunits and areas, and well hydrographs in the Antelope Valley-East Kern Water Agency area, California. ...
Reconnaissance geologic map and geochronology, Talkeetna Mountains quadrangle, northern part of Anchorage quadrangle, and southwest corner of Healy quadrangle, Alaska
Bela Csejtey Jr., W. H. Nelson, D. L. Jones, Norman J. Silberling, R. M. Dean, M.S. Morris, M. A. Lanphere, James G. Smith, M.L. Silberman
1978, Open-File Report 78-558-A
No abstract available....
Complete Bouguer gravity maps and gravity models of the Date Creek basin and vicinity, Maricopa, Mojave, Yavapai, and Yuma Counties, Arizona
Jeffrey C. Wynn, James K. Otton
1978, Open-File Report 78-362
No abstract available....
Epigenetic mineralization and areas favorable for uranium exploration in Tertiary continental sedimentary rock in south-central Alaska: A preliminary report
Kendell A. Dickinson, John A. Campbell
1978, Open-File Report 78-757
No abstract available....
Coal resource occurrence maps of the Seminoe Dam SW Quadrangle, Carbon County, Wyoming
Texas Instruments Incorporated
1978, Open-File Report 78-60
No abstract available....
Leasable mineral and waterpower land classification map of the Aztec quadrangle, New Mexico, Colorado
Donald A. DeCicco, E. D. Patterson, Gale A. Lutz
1978, Open-File Report 78-476
No abstract available....
Chemical composition and distribution of lithium-rich brines in salar de Uyuni and nearby salars in southwestern Bolivia
George E. Ericksen, James D. Vine, Raul Ballon A.
1978, Energy (3) 355-363
Preliminary investigations at Salar de Uyuni and the nearby salars (salt pans) of Coipasa and Empexa in the southern part of the Bolivian Altiplano show the presence of widespread lithium-rich brines. Widely scattered brine samples from Salar de Uyuni, which...
Global color variations on the Martian surface
L.A. Soderblom, K. Edwards, E. M. Eliason, E.M. Sanchez, M.P. Charette
1978, Icarus (34) 446-464
Surface materials exposed throughout the equatorial region of Mars have been classified and mapped on the basis of spectral reflectance properties determined by the Viking II Orbiter vidicon cameras. Frames acquired at each of three wavelengths (0.45 ± 0.03 μm, 0.53 ± 0.05 μm, and 0.59 ± 0.05 μm) during the approach of...
Conceptual models in exploration geochemistry-The Basin and Range Province of the Western United States and Northern Mexico
T.G. Lovering, J. H. McCarthy Jr.
1978, Journal of Geochemical Exploration (9) 113-276
This summary of geochemical exploration in the Basin and Range Province is another in the series of reviews of geochemical-exploration applications covering a large region; this series began in 1975 with a summary for the Canadian Cordillera and Canadian Shield, and was followed in 1976 by a similar summary for...
Mars, highlands-lowlands: Viking contributions to mariner relative age studies
D. H. Scott
1978, Icarus (34) 479-485
Stratigraphic relations between lowland plains and highlands, two major types of Martian geologic-terrain units, were not directly distinguishable on Mariner-9 images. Morphologic characteristics and crater densities suggested that the lava plains beneath their eolian cover were younger than adjacent highland rocks, which form a plateau bounded in many places by...
Range charts and no-space graphs
Lucy E. Edwards
1978, Computers & Geosciences (4) 247-255
No-space graphs present one solution to the familiar problem: given data on the occurrence of fossil taxa in separate, well-sampled sections, determine a range chart; that is, a reasonable working hypothesis of the total range in the area in question of each taxon studied. The solution presented here treats only...
