Sandrewia, n. gen., a problematical plant from the Lower Permian of Texas and Kansas
S.H. Mamay
1975, Review of Palaeobotany and Palynology (20) 75-83
Sandrewia, n. gen., monotypified by S. texana, n. sp., is a plant from Lower Permian beds of north-central Texas and east-central Kansas. It is characterized by stout axes with spirally disposed, laxly inserted, petiolate leaves; the laminae are broadly flabelliform with coarse, open venation....
A technique for estimating the magnitude and frequency of floods in Maine
Richard Arthur Morrill
1975, Open-File Report 75-292
No abstract available....
Hydrologic data for urban studies in the Houston, Texas, metropolitan area, 1973
J.P. Fisher, H. D. King
1975, Report
No abstract available....
Hydrologic data for Mukewater Creek, Colorado River Basin, Texas, 1973
J. N. Lee
1975, Report
No abstract available....
Ground-water data for Orange County and vicinity, Texas and Louisiana, 1971–74
C.W. Bonnet
1975, Texas Water Development Board Report 197
No abstract available....
Annual compilation and analysis of hydrologic data for urban studies in the San Antonio, Texas metropolitan area, 1973
R.D. Steger
1975, Report
No abstract available....
Seismic-reflection profiles, R/V Kelez, Nov-Dec. 1973, continental borderland of southern California
George William Moore, Larry A. Beyer
1975, Open-File Report 75-330
No abstract available....
Hydrologic data for urban studies in the Dallas, Texas, metropolitan area, 1973
B.B. Hampton
1975, Report
No abstract available....
Implications of seasonal chemical and physical factors on the production of phytoplankton in northern San Francisco Bay
D. H. Peterson, T. J. Conomos
1975, Conference Paper, Proceedings, Workshop on Algae Nutrient Relationships in the San Francisco Bay and Delta
No abstract available....
Hydrologic data for Little Elm Creek, Trinity River Basin, Texas, 1973
R.M. Slade Jr., J.M. Taylor
1975, Report
The U.S. Soil Conservation Service is actively engaged in the implementation of flood- and soil-erosion reducing measures in Texas under the authority of "The Flood Control Act of 1936 and 1944" and "Watershed Protection and Flood Prevention Act" (Public Law 566), as amended. The Soil Conservation Service has found that...
Channel catfish virus experiments with different strains of channel catfish
J.A. Plumb, O.L. Green, R.O. Smitherman, G.B. Pardue
1975, Transactions of the American Fisheries Society (104) 140-143
Experimental infections of channel catfish virus were made by feeding virus to six strains of 1‐, 2‐, and 3‐month‐old channel catfish from different geographical areas and two hybrid strains. There was no significant difference in mortality between age groups. Mortality rates differed significantly between the various strains, with mean mortality...
The fracture strength and frictional strength of Weber Sandstone
J.D. Byerlee
1975, International Journal of Rock Mechanics and Mining Sciences & Geomechanics Abstracts (12) 1-4
The fracture strength and frictional strength of Weber Sandstone have been measured as a function of confining pressure and pore pressure. Both the fracture strength and the frictional strength obey the law of effective stress, that is, the strength is determined not by the confining pressure alone but by the...
Location of the non-tidal current null zone in northern San Francisco Bay
David H. Peterson, T. J. Conomos, W. W. Broenkow, Patrick C. Doherty
1975, Estuarine and Coastal Marine Science (3) 1-11
Variations in Sacramento-San Joaquin River discharge into northern San Francisco Bay causes shifts in location of the bottom density current null zone. At a river flow of 2000 m3/s this null zone is approximately 20 km from the seaward end of the estuary,...
Mineral resource models and the Alaskan Mineral Resource Assessment Program
Donald A. Singer
W. A. Vogely, editor(s)
1975, Book chapter, Mineral materials modeling A state-of-the-art review
The least exacting demand that can be made of any model is that it serves as a device whereby we can predict actual physical happenings. Another demand which could be made is that the physical happenings predicted be in some way relevant to man, either by allowing him to anticipate...
Mineral deposits, occurrences, and associated altered rocks in Southwest Seward Peninsula, western Alaska
C. L. Hummel
1975, Open-File Report 75-2
No abstract available....
Lithology and uranium potential of Jurassic formations in the San Ysidro-Cuba and Majors Ranch areas, northwestern New Mexico
Elmer S. Santos
1975, Bulletin 1329
No abstract available....
A rural mail-carrier index of North Dakota red foxes
S.H. Allen, A.B. Sargeant
1975, Wildlife Society Bulletin (3) 74-77
Rural mail-carrier sightings of red foxes (Vulpes vulpes) during mid-April, -July, and -September of 1969-73 were compared to spring fox family estimates derived by aerial searches of six townships. The mid-April mail-carrier index reflected annual fox density changes on the six townships (correlation coefficient = 0.958) . Random exclusions of...
Determining earthquake recurrence intervals from deformational structures in young lacustrine sediments
John D. Sims
1975, Tectonophysics (29) 141-152
Examination of the silty sediments in the lower Van Normal reservoir after the 1971 San Fernando, California earthquake revealed three zones of deformational structures in the 1-m-thick sequence of sediments exposed over about 2 km2 of the reservoir bottom. These zones are correlated with moderate earthquakes that shook the San Fernando...
Spectrofluorimetric determination of thallium in silicate rocks with rhodamine b in the presence of aluminum chloride
M.M. Shnepfe
1975, Analytica Chimica Acta (79) 101-108
A sensitive spectrofluorimetric procedure with rhodamine B in the presence of aluminum chloride is given for determining submicrogram and microgram quantities of thallium in silicate rocks. Samples are decomposed with a mixture of hydrofluoric and nitric acids and then treated with hydrochloric acid. Thallium is extracted as its dithizonate with...
Rare earths in the Leadville Limestone and its marble derivates
J.C. Jarvis, T.R. Wildeman, N.G. Banks
1975, Chemical Geology (16) 27-37
Samples of unaltered and metamorphosed Leadville Limestone (Mississippian, Colorado) were analyzed by neutron activation for ten rare-earth elements (REE). The total abundance of the REE in the least-altered limestone is 4–12 ppm, and their distribution patterns are believed to be dominated by...
Preliminary description and interpretation of cores and radiographs from Clear Lake, Lake County, California: Core 7
John D. Sims, Michael J. Rymer
1975, Open-File Report 75-144
Clear Lake, California is located in the California Coast Ranges about 120 km north of San Francisco and is the largest freshwater lake wholly within California. The lake basin is tectonically controlled (Anderson, 1936; Brice, 1953, Sims and Rymer, 1974) and the area seismically active (Coffman and von Hake, 1973).Interest...
Rehabilitation of fish populations with toxicants: A symposium
Paul H. Eschmeyer
1975, Special Publication 4
No abstract available....
Fish furunculosis
S. F. Snieszko, G. L. Bullock
1975, Fish Disease Leaflet 43
No abstract available at this time...
History of fish toxicants in the United States
K.B. Cumming
1975, Special Publication 4
Many bodies of water have been overrun with fish species that are undesirable for the well-being of endemic aquatic biota and are of little or no interest to anglers. This situation has resulted from the transplanting of fish, creation of new waters, increasing fishing pressure and changing water quality. Although...
Atlantic salmon (Salmo salar) an annotated bibliography
F. T. Wright
1975, Technical Paper 83
No abstract available at this time...
