Miocene diatomaceous beds of the Pamunkey River area Hanover and King William counties, Virginia
George W. Andrews
1984, Book chapter, Stratigraphy and paleontology of the outcropping Tertiary beds in the Pamunkey River region, central Virginia coastal plain : guidebook for the 1984 field trip, Atlantic Coastal Plain Geological Association, October 6-7, 1984
No abstract available....
Foraminifers and calcareous nannofossils of Tertiary strata in Maryland and Virginia: A summary
T. G. Gibson, Laurel M. Bybell
1984, Book chapter, Cretaceous and Tertiary stratigraphy, paleontology, and structure, southwestern Maryland and northeastern Virginia: Field trip volume and guidebook, October 17, 1984
No abstract available....
Guidebook for the annual field conference of Pennsylvania geologists: Geology of an accreted terrane; the eastern Hamburg Klippe and surrounding rocks, eastern Pennsylvania
Peter T. Lyttle, Jack B. Epstein, Gary George Lash
1984, Book
No abstract available....
Decline in use of Avitrol R to reduce blackbird damage to field corn
Sean T. Kelly, Richard A. Dolbeer
1984, Wildlife Society Bulletin (12) 252-255
No abstract available....
Map revision using digital image processing techniques
E. Lynn Usery, R. Welch
1984, Conference Paper, Technical papers of the American Society of Photogrammetry, Annual Meeting
No abstract available....
Geographic variation in ground shaking as a function of changes in near-surface properties and geologic structure near Los Angeles, California
A. M. Rogers, Ladislaus C. Tinsley, Roger D. Borcherdt
1984, Conference Paper, Proceedings of the eighth world conference on earthquake engineering; ground motion and seismicity. San Francisco, CA, United States, July 21-28, 1984
No abstract available....
Miocene diatomaceous beds of the Calvert Formation at Popes Creek
George W. Andrews
1984, Book chapter, Cretaceous and tertiary stratigraphy, paleontology, and structure, Southwestern Maryland and Northeastern Virginia : field trip volume and guidebook, October 17, 1984
No abstract available....
Geologic and rheologic characteristics of the May 18, 1980 southwest flank lahars, Mount St. Helens, Washington
J. J. Major
1984, Thesis
No abstract available. ...
Truncation of the Appalachian Piedmont beneath the Coastal Plain of Alabama: Evidence from new magnetic data
J. Wright Horton, Jr., Isadore Zietz, Thorton L. Neathery
1984, Geology (12) 51-55
A new aeromagnetic survey of a part of southern Alabama reveals that magnetic signatures of the Appalachian Piedmont are truncated by a major magnetic lineament beneath the Gulf Coastal Plain. Mylonitic rocks have been recovered from a drillhole along this lineament, which is probably a fault zone of late Paleozoic...
Implications of paleomagnetism for the tectonic history of the Eastern Klamath and related terranes in California and Oregon
E. A. Mankinen, W. P. Irwin, C. S. Grommé
T. H. Nilsen, editor(s)
1984, Book chapter, Geology of the Upper Cretaceous Hornbrook Formation, Oregon and California
No abstract available....
Preaccretion and postaccretion plutonic belts in allochtonous terrane of the Klamath Mountains, California and Oregon
W. P. Irwin
1984, Stanford University Publications in Geological Science (18) 119-121
No abstract available....
Tectonstratigraphic terranes in southwestern Oregon
M. Clark Blake Jr.
1984, Book chapter, Geology of the Upper Cretaceous Hornbrook Formation, Oregon and California
No abstract available....
Bioavailability of Pb and Zn from mine tailings as indicated by erythrocyte aminolevulinic acid dehydratase (ALA-D) activity in suckers (Pisces: catostomidae)
Christopher J. Schmitt, F. James Dwyer, Susan E. Finger
1984, Canadian Journal of Fisheries and Aquatic Sciences (41) 1030-1040
The activity of the erythrocyte enzyme δ-aminolevulinic acid dehydratase (ALA-D) was measured in 35 catostomids (black redhorse, Moxostoma duquesnei; golden redhorse, M. erythrurum; northern hogsucker, Hypentelium nigricans) collected from three sites on a stream contaminated with Pb-, Cd-, and Zn-rich mine tailings and from an uncontaminated site upstream. Enzyme activity was expressed in terms...
Canyon-filling lavas and lava dams on the Boise River, Idaho, and their significance for evaluating downcutting during the last 2 million years
Keith A. Howard, John W. Shervais, E.H. McKee
Bill Bonnichsen, R.M. Breckenridge, editor(s)
1984, Report, Cenozoic geology of Idaho
Basalts that periodically dammed the Boise River and its South Fork over the last 2 million years reveal the canyon history and illustrate how lava interacted with impounded river water. Intracanyon basalt flows record a granite canyon successively filled by lava and then recut at least five times in the...
Statistical relations among earthquake magnitude, surface rupture length, and surface fault displacement
Manuel G. Bonilla, Robert K. Mark, James J. Lienkaemper
1984, Bulletin of the Seismological Society of America (74) 2379-2411
In order to refine correlations of surface-wave magnitude, fault rupture length at the ground surface, and fault displacement at the surface by including the uncertainties in these variables, the existing data were critically reviewed and a new data base was compiled. Earthquake magnitudes were redetermined as necessary to make them...
Annual report of the USGS Mission, Kingdom of Saudi Arabia, for the first year of the seventh extension of the USGS-MPMR work agreement : fiscal year 1403/04, 1 Rajab 1403 - 30 Jumad Thani 1404 (14 April 1983 - 1 April 1984)
U.S. Geological Survey Saudi Arabia Mission, Saudi Arabia. Deputy Ministry for Mineral Resources
1984, Report
An interagency report prepared by the U.S. Geological Survey Saudi Arabian Mission for the Ministry of Petroleum and Mineral Resources, Kingdom of Saudi Arabia. The work on which this report was based was performed in accordance with a cooperative agreement between the U.S. Geological Survey and the Ministry of Petroleum...
Origin of Hawaiian tholeiite: A metasomatic model
Thomas L. Wright
1984, Journal of Geophysical Research B: Solid Earth (89) 3233-3252
Two voluminous magma types generated in the mantle underlying the Pacific plate are mid‐ocean ridge tholeiite (MORB) erupted at the East Pacific Rise spreading center and Hawaiian tholeiite (HT) erupted above the Hawaiian hot spot or melting anomaly. MORB has low initial 87Sr/86Sr ratios and low amounts of all incompatible trace...
Deposit from a giant wave on the island of Lanai, Hawaii
James G. Moore, George W. Moore
1984, Science (226) 1312-1315
Limestone-bearing gravel, the newly named Hulopoe Gravel, blankets the coastal slopes on Lanai. The deposit, which reaches a maximum altitude of 326 meters, formerly was believed to have been deposited along several different ancient marine strandlines, but dated submerged coral reefs and tide-gauge measurements indicate that the southeastern Hawaiian Islands...
Contribution of small glaciers to global sea level
M. F. Meier
1984, Science (226) 1418-1421
Observed long-term changes in glacier volume and hydrometeorological mass balance models yield data on the transfer of water from glaciers, excluding those in Greenland and Antarctica, to the oceans, The average observed volume change for the period 1900 to 1961 is scaled to a global average by use of the...
The variability of Holocene climate change: Evidence from varved lake sediments
Walter E. Dean, J. Platt Bradbury, R.Y. Anderson, C.W. Barnosky
1984, Science (226) 1191-1194
Varved sediments from a lake near the present forest-prairie border in northwestern Minnesota provide an annual record of climate change for the last 10,400 years. Climate-sensitive mineral, chemical, and biological components show that the mid-Holocene dry interval between 8500 and 4000 years ago is asymmetrical and actually consists of two...
Deformation in the White Mountain seismic gap, California-Nevada, 1972-1982
James C. Savage, Michael Lisowski
1984, Journal of Geophysical Research B: Solid Earth (89) 7671-7687
A 100×40 km trilateration network extending from Bishop, California, to near Hawthorne, Nevada, crosses the east end of the Long Valley caldera, site of renewed magma inflation in the 1979–1980 interval, and spans most of the White Mountain seismic gap. The network was surveyed in 1972, 1973, 1976, 1979, 1980,...
Earthquake swarm in Long Valley caldera, California, January 1983: Evidence for dike inflation
James C. Savage, R.S. Cockerham
1984, Journal of Geophysical Research B: Solid Earth (89) 8315-8324
The 1982–1983 deformation observed by trilateration and leveling surveys across the Long Valley caldera is apparently related to the 8.5‐km‐long by 8‐km‐deep vertical rupture surface defined by the January 1983 earthquake swarm that occurred in the south moat of the caldera. The observed deformation can be explained as follows. In...
Regional deformation near Palmdale, California, 1973-1983 (USA)
N.E. King, James C. Savage
1984, Journal of Geophysical Research B: Solid Earth (89) 2471-2477
The Tehachapi trilateration network spans the intersection of the San Andreas and Garlock faults in southern California in the “Big Bend” region of the San Andreas fault. Analysis of data from 1973–1983 shows strain differences between the northwest and southeast regions of the network and slip at...
Transport and concentration controls for chloride, strontium, potassium and lead in Uvas Creek, a small cobble-bed stream in Santa Clara County, California, U.S.A.: 1. Conceptual model
V. C. Kennedy, A. P. Jackman, S.M. Zand, G. W. Zellweger, R.J. Avanzino
1984, Journal of Hydrology (75) 67-110
Stream sediments adsorb certain solutes from streams, thereby significantly changing the solute composition; but little is known about the details and rates of these adsorptive processes. To investigate such processes, a 24-hr. injection of a solution containing chloride, strontium, potassium, sodium and lead was made at the head of a...
Storm-generated variations in nearshore beach topography
Harry F. Lins
1984, Marine Geology (62) 13-29
A series of nearshore beach profile measurements from the Outer Banks of North Carolina spanning a four-month period have been examined for temporal variations in nearshore topography. Principal component analysis of the profile data indicates that most of the variation in nearshore topography occurs in four principal modes, two quasiseasonal...
