The Late Cretaceous ammonite Trachyscaphites pulcherrimus (Roemer) in New Jersey and Texas
W. A. Cobban
1973, Journal of Research of the U.S. Geological Survey (1) 695-700
Trachyscaphites pulcherrimus, described originally by Ferdinand Roemer in 1841 from fragments of nodose ammonites from Germany, is characterized by having five rows of tubercles on each flank of the phragmocone and three to five rows on each side of the body chamber. Weak midventral tubercles are present on some specimens. Ribbing is dense and usually...
Early Pleistocene(?) pollen spectra from near Lake Tahoe, California
David P. Adam
1973, Journal of Research of the U.S. Geological Survey (1) 691-693
Fossil pollen was recovered at Tahoe City, Calif., from beneath a 1.9-m.y.-old volcanic flow. Pollen counts of four fossil samples are compared with soil-surface pollen samples from the Sierra Nevada. The presence of Picea (spruce) pollen in the fossil samples suggests that summer drought conditions in the central Sierra Nevada were less severe prior to...
Archaeocycas and Phasmatocycas - new genera of Permian cycads
Sergius H. Mamay
1973, Journal of Research of the U.S. Geological Survey (1) 687-689
The generic names Archaeocycas and Phasmatocycas are introduced for two previously announced but unnamed new genera of Early Permian plants; these taxa are regarded as early stages in the cycadean lineage. The names arc formalized with diagnoses, illustrations, and type designations....
An accurate Invar-wire extensometer
W. A. Duffield, Robert O. Burford
1973, Journal of Research of the U.S. Geological Survey (1) 569-577
Stevens Type F water-level recorders have been modified to measure changes in the distance between two points, with amplification of up to 10 times. Such recorders are capable of measuring strains of 10-5 and possibly 10-6 over 10-m distances when corrections are made for frictional effects and temperature. In two...
Earthquake-induced structures in sediments of Van Norman Lake, San Fernando, California
J.D. Sims
1973, Science (182) 161-163
The 9 February 1971 earthquake in the San Fernando Valley damaged the Lower Van Norman Dam severely enough to warrant draining the reservoir. In March 1972 the sediment deposited on the reservoir floor was examined to determine whether the 1971 earthquake had induced sediment deformation and, if so, what types....
Land use and prairie grouse population relationships in North Dakota
L.M. Kirsch, Albert T. Klett, H.W. Miller
1973, Journal of Wildlife Management (37) 449-453
The relationship between prairie grouse and land use was studied during the period 1964-71. Prairie chickens (Tympanuchus cupido) declined from 48 males in 1964 to none in 1971. Sharp-tailed grouse (Pedioecetes phasianellus) declined from 166 males in 1964 to 57 in 1971. These declines were related to the decline in...
Summer behavior of immature radio-equipped woodcock in central Maine
R.D. Dunford, Ray B. Owen
1973, Journal of Wildlife Management (37) 462-469
The behavior of 15 immature American woodcock (Philohela minor) was studied in central Maine during the summers of 1969 and 1970 using radiotelemetry. The monitored birds used a variety of nocturnal sites including old fields, bogs, powerlines, highway medians, woods roads, and fore clearings. Old fields were occupied more often...
Karst hydrology: A review
H. E. LeGrand, V. T. Stringfield
1973, Journal of Hydrology (20) 97-120
Karst regions of the world are characterized by limestones and other soluble rocks at or near land surface that have been modified by solutional erosion. Such surface features as sinks, long dry valleys, sparse streams, and bare rock and such subsurface features as caverns, arterial solution openings leading to large...
Ophiolites in the earth's crust: A symposium, field excursions, and cultural exchange in the USSR
Robert G. Coleman
1973, Geology (1) 51-54
No abstract available....
Water projects design with inadequate data: Madrid, Spain June 4-9, 1973
I. C. James II
1973, Eos, Transactions, American Geophysical Union (54) 935-937
The Symposium on the Design of Water Resources Projects with Inadequate Data drew 300 participants, representing more than 60 countries. The symposium was planned within the framework of the International Hydrological Decade and was convened by Unesco and WMO. Organization of the symposium was carried out by Unesco and the...
Fusion Relations in the System NaAlSi3O8-CaAl2Si2O8-KAlSi3O8-SiO2-H2O and Generation of Granitic Magmas in the Sierra Nevada Batholith
Dean C. Presnall, P. C. Bateman
1973, Geological Society of America Bulletin (84) 3181-3201
Chemical analyses of 167 typical specimens indicate that about 95 percent of the intrusive rocks of the central Sierra Nevada contain more than 79 percent normative Ab + An + Or + Qz. If the composition of the lower continental crust is similar to or slightly more felsic than andesite,...
Potassium-argon ages of lavas from the Hawi and Pololu Volcanic Series, Kohala Volcano, Hawaii: Reply
Ian McDougall, Donald A. Swanson
1973, Geological Society of America Bulletin (84) 3485-3487
No abstract available....
Stable isotope and chemical relations during mineralization in the Bodie mining district, Mono County, California
J. R. O’Neil, M.L. Silberman, B.P. Fabbi, C. W. Chesterman
1973, Economic Geology (68) 765-784
Stable isotope and chemical relations have been determined in a typical epithermal Au-Ag deposit located in the Bodie mining district of California. Analyses were made of altered host rocks, vein minerals, alteration clays, fluid inclusions, modern spring waters, and unaltered rocks of the area.The results indicate that a hydrothermal convection...
Tragic base surge in 1790 at Kilauea Volcano
Donald A. Swanson, Robert L. Christiansen
1973, Geology (1) 83-86
Reconstruction of events surrounding the deaths of a party of Hawaiian warriors in 1790 on Kilauea Volcano suggests that they were killed by a hot, relatively ash-free base surge. Recognition of structures attributable to base-surge deposition in deposits of the 1790 eruption is consistent with this reconstruction....
Fossil forms of Amentiferae
Jack A. Wolfe
1973, Brittonia (25) 334-355
Review of the procedures used in determining fossil plant organs indicates that the many Cretaceous records of extant genera of “Amentiferae” based on leaves should be rejected as theoretically unreliable. Palynological data, in combination with some valid megafossil data, indicate that most recognizable members of “Amentiferae” are no older than...
Oxidation during magmatic differentiation, Finnmarka Complex, Oslo area, Norway: Part 2, the mafic silicates
Gerald K. Czamanske, David R. Wones
1973, Journal of Petrology (14) 349-380
Electron-microprobe analyses are presented for pyroxene, amphibole, and biotite from monzonite, granodiorite, and granite at Finnmarka, Norway. Compositional trends measured in biotite, present in all three rock types, and in amphibole, present in the monzonite and granodiorite, are markedly atypical and are interpreted as reflecting crystallization under progressively more...
Review of Aquatic oligochaeta of the world
Jarl K. Hiltunen
1973, Transactions of the American Fisheries Society (102) 850-850
No abstract available. ...
Anthelminthic treatment of channel catfish for tapeworm infections
Fred P. Meyer
1973, Progressive Fish-Culturist (35) 205-206
No abstract available. ...
Phase feeding for catfish
W.H. Hastings
1973, Progressive Fish-Culturist (35) 195-196
No abstract available. ...
Effect of overhead cover on growth and survival of channel catfish in circular tanks
K.O. Allen
1973, Progressive Fish-Culturist (35) 213-213
No abstract available. ...
Effect of method of introducing well water on the growth, body chemistry, and incidence of eye abnormalities of juvenile brown and rainbow trout
Hugh A. Poston, D.L. Livingston, D.G. Hedrick
1973, Progressive Fish-Culturist (35) 187-190
No abstract available. ...
Bidding and production relationships for federal OCS leases: Statistical studies of wildcat leases, Gulf of Mexico, 1962, and prior sales
John Lohrenz, Hillary A. Oden
1973, Conference Paper
The relationships between bids received on wildcat leases issued on federal OCS lands in the Gulf of Mexico from 1954 through 1962 and subsequent drilling on, production from, and relinquishment of these leases were studied. The results provided quantitative answers to questions regarding bidding as prescribed by current laws and...
Shallow structure and geologic development of the Southern Red Sea
David A. Ross, John Schlee
1973, GSA Bulletin (84) 3827-3848
A series of 34 shallow-penetration seismic-reflection profiles made across the Red Sea show that it developed in two main stages. Initially, an early or pre-Miocene uplift and lateral extension resulted in crustal thinning and eventual formation of the main Red Sea Basin. During Miocene time, the Red Sea was isolated...
Surface jet stream excess temperature analysis
Daniel P. Bauer, Louis H. Motz
1973, Report
No abstract available....
Trans-Andean geophysical profile, southern Colombia
J. E. Case, Jerry Barnes, Gabriel Paris Q., Humberto Gonzalez I., Alvaro Vina
1973, Geological Society of America Bulletin (84) 2895-2904
Negative Bouguer anomalies (−80 mgals) near the Pacific coast of southern Colombia define the position of the Tertiary Bolívar trough. Values increase eastward to a huge positive anomaly (+75 mgals) over Mesozoic “eugeosynclinal” rocks of the western Andes. This anomaly is part of the West Colombian gravity high, which extends...
