Rostroconchia: A new class of bivalved mollusks
J. Pojeta Jr., B. Runnegar, N.J. Morris, N.D. Newell
1972, Science (177) 264-267
Four Paleozoic bivalved genera are assigned to the new molluscan class Rostroconchia: Eopteria, Euchasma, Conocardium, and Pseudoconocardium. These mollusks have an uncoiled univalved larval shell; an untorted bivalved adult shell; no hinge teeth, ligament, or adductor muscles; and a fused, almost inflexible. hinge. Rostroconchians developed separately from the pelecypods...
Lethal mobilization of DDT by cowbirds
A.C. Van Velzen, W.B. Stiles, Lucille F. Stickel
1972, Journal of Wildlife Management (36) 733-739
This study is an experimental demonstration of lethal mobilization of DDT by brown-headed cowbirds (Molothrus ater) and the effects of food deprivation on the distribution and loss of DDT, DDD, and DDE. The principal experimental group consisted of 20 birds fed a dietary dosage of 100 ppm of DDT for...
Some effects of aldrin-treated rice on Gulf Coast wildlife
Edward L. Flickinger, Kirk A. King
1972, Journal of Wildlife Management (36) 706-727
Wildlife casualties from aldrin-dieldrin poisoning are associated with the planting of aldrin-treated rice seed along the Texas Gulf Coast. The fulvous tree duck (Dendrocygna bicolor), which depends on the rice field habitats and is highly susceptible to aldrin-dieldrin poisoning, is suffering a serious population decline in that area. Dead waterfowl,...
Paleomagnetism and potassium-argon ages of the Sonoma Volcanics, California
Edward A. Mankinen
1972, GSA Bulletin (83) 2063-2072
Paleomagnetic data and potassium-argon ages indicate that the Sonoma Volcanics was erupted during the Pliocene Gilbert reversed and Gauss normal polarity epochs. The Gilbert reversed epoch is represented in the Howell Mountains east of Napa and east of St. Helena, in the mountains immediately east of the Valley of the...
Report of the first national Conference on Minority Participation in Earth Science and Mineral Engineering
U.S. Department of the Interior, Colorado School of Mines
1972, Conference Paper
No abstract available....
Deuterium content of snow as an index to winter climate in the Sierra Nevada area
I. Friedman, G.I. Smith
1972, Science (176) 790-793
The winter of 1968-69 produced two to three times the amount of precipitation in the Sierra Nevada area, California and Nevada, as the winter of 1969-70. The deuterium content in snow cores collected at the end of each winter at the same sites, which represents the total snowfall of each...
Preliminary mariner 9 report on the geology of Mars
John F. McCauley, M. H. Carr, J.A. Cutts, W.K. Hartmann, Harold Masursky, D.J. Milton, R.P. Sharp, Don E. Wilhelm
1972, Icarus (17) 289-327
Mariner 9 pictures indicate that the surface of Mars has been shaped by impact, volcanic, tectonic, erosional and depositional activity. The moonlike cratered terrain, identified as the dominant surface unit from the Mariner 6 and 7 flyby data, has proven to be less typical of Mars than previously believed, although...
Topographic map of the Arabian Peninsula
U.S. Geological Survey Saudi Arabian Project, Saudi Arabia. Mudīrīyah al-ʻĀmmah lil-Tharwah al-Maʻdinīyah
1972, Report
Red fox spatial characteristics in relation to waterfowl predation
A.B. Sargeant
1972, Journal of Wildlife Management (36) 225-236
Radio-equipped red foxes (Vulpes vulpes) on the Cedar Creek area in Minnesota were spatially distributed, with individual families occupying well defined, nonoverlapping, contiguous territories. Territory boundaries often conformed to natural physical boundaries and appeared to be maintained through some nonaggressive behavior mechanism. Individual foxes traveled extensively throughout the family territory...
Techniques for establishing local breeding populations of wood ducks
Harold A. Doty, A.D. Kruse
1972, Journal of Wildlife Management (36) 428-435
A study was conducted on the Arrowwood National Wildlife Refuge in east-central North Dakota to further evaluate a technique for establishing nesting wood ducks (Aix sponsa) by releasing propagated birds and installing nest houses. No wood duck nesting had been recorded previously in the area. During May-July 1968, 253 ducklings,...
Geologic map index of Minnesota Part B, 1953-1970
W.L. McIntosh, Margaret Eister
1972, Report
No abstract available....
Flood stages and discharges for small streams in North Dakota
Orlo A. Crosby, Roger A. Pewe
1972, Report
No abstract available....
The effects of exposure to Thanite on the blood chemistry of carp
Joseph B. Hunn
1972, Progressive Fish-Culturist (34) 81-84
No abstract available. ...
Some physiologic blood values of wild diving ducks
R. M. Kocan
1972, Journal of Wildlife Diseases (8) 115-118
Blood samples were obtained from 54 canvasbacks (Aythya valisineria), 30 lesser scaup (A. affinis), 3 ring-necks (A. collaris), and 3 buffleheads (Bucephala albeola), which were wintering on Chesapeake Bay. These blood samples were used for: red blood cell counts (cans. 2.56 × 106/mm3;...
Immunologic status of mourning doves following an epizootic of trichomoniasis
R. M. Kocan, S.R. Amend
1972, Journal of Wildlife Diseases (8) 176-180
An epizootic of trichomoniasis in mourning doves at the Carolina Sandhills National Wildlife Refuge began in 1969 and continued into 1970. The disease was seen in 16% of the adults and 2% of the immatures in 1970, but only one immature bird out of 37 surveyed (3%) carried Trichomonas gallinae. Challenge...
Nimbus IV view of the major structural features of Alaska
E. H. Lathram
1972, Science (175) 1423-1427
Notwithstanding the relatively low degree of ground resolution, many of the major structural features of Alaska can be identified on the Nimbus IV IDCS image, exposed at an altitude of 600 nautical miles (1100 km). In addition, linears of regional extent that may be structurally controlled can be seen, many...
Magnetic noise preceding the August 1971 summit eruption of Kilauea Volcano
G.V. Keller, D. B. Jackson, A. Rapolla
1972, Science (175) 1457-1458
During the course of an electromagnetic survey about Kilauea Volcano in Hawaii, an unusual amount of low-frequency noise was observed at one recording location. Several weeks later an eruption occurred very close to this site. The high noise level appeared to be associated in some way with the impending eruption....
Movements and denning habits of a badger
A.B. Sargeant, D.W. Warner
1972, Journal of Mammalogy (53) 207-210
No abstract available. ...
Geology of the massive sulfide deposits at Jerome, Arizona; A reinterpretation
C.A. Anderson, J. Thomas Nash
1972, Economic Geology (67) 845-863
The massive sulfide deposits at Jerome, consisting largely of pyrite, chalcopyrite, and sphalerite, are concordant stratabound lenses in massive quartz-bearing crystal tuffs of Precambrian age and overlying bedded tuffaceous rocks. The crystal tuffs were eraplaced as submarine pyroclastic flows. The evidence permits the interpretation that the massive sulfide lenses are...
Field trip guidebook for hydrogeology of the Twin Cities Artesian Basin
T. C. Winter, R.F. Norvitch
1972, Guidebook 8
No abstract available....
An approach to the design of statewide or regional ground water information systems
Thomas C. Winter
1972, Water Resources Research (8) 222-230
The design of water information or basic data systems must be flexible enough to provide information and data for a broad range of interests from national to local. The system must satisfy the need for information for accounting, surveillance, and areal synthesis purposes. The network is designed by identifying specific...
Suspended matter in surface waters of the northern Gulf of Mexico
Frank T. Manheim, J.C. Hathaway, Elazar Uchupi
1972, Limnology and Oceanography (17) 17-27
Analyses of about 200 surface water samples collected during late fall 1966 show that concentrations of suspended matter greater than 1 mg/liter were restricted to within a few kilometers off Florida, but extended more than 100 km off Louisiana and Texas. Suspensates from areas farther than 100 km from shore...
Mariner 9 television reconnaissance of Mars and its satellites: Preliminary results
H. Masursky, R. M. Batson, J.F. McCauley, L.A. Soderblom, R.L. Wildey, M. H. Carr, D.J. Milton, D.E. Wilhelms, B.A. Smith, T.B. Kirby, J.C. Robinson, C.B. Leovy, G.A. Briggs, T. C. Duxbury, C.H. Acton Jr., B. C. Murray, J.A. Cutts, R.P. Sharp, S. Smith, R.B. Leighton, C. Sagan, J. Veverka, M. Noland, J. Lederberg, E. Levinthal, James B. Pollack, J.T. Moore Jr., W.K. Hartmann, E.N. Shipley, G. De Vaucouleurs, M. E. Davies
1972, Science (175) 294-305
At orbit insertion on 14 November 1971 the Martian surface was largely obscured by a dust haze with an extinction optical depth that...
Magma supply rate at Kilauea volcano, 1952-1971
D. A. Swanson
1972, Science (175) 169-170
The three longest Kilauea eruptions since 1952 produced lava at an overall constant rate of about 9 x 106 cubic meters per month (vesicle-free)....
Borehole activation analysis by delayed and capture gamma rays using a 252Cf neutron source
R.M. Moxham, F. E. Senftle, G. R. Boynton
1972, Economic Geology (67) 579-591
Theoretical analysis and experimental comparison of the radiative capture and delayed gamma-ray activation techniques indicate the latter to be more efficient for the detection of copper, whereas the radiative capture method is preferable for nickel. A conservative lower detection limit for both copper and nickel is '-0.5%. Borehole spectra by...
