Contaminant transport in Massachusetts Bay
Bradford Butman
1992, Report
Construction of a new treatment plant and outfall to clean up Boston Harbor is currently one of the world's largest public works projects, costing about $4 billion. There is concern about the long-term impact of contaminants on Massachusetts Bay and adjacent Gulf of Maine because these areas are used extensively...
Bristol Lake basin--a deep sedimentary basin along the Bristol-Danby trough, Mojave Desert
R.C. Jachens, Keith A. Howard
1992, Report, Old Routes to the Colorado
No abstract available....
Flow cytometry, morphometry and histopathology as biomarkers of benzo[a]pyrene exposure in brown bullheads (ameiurus nebulosus)
Andrew W. Grady, Ronald M. McLaughlin, Charles W. Caldwell, Christopher J. Schmitt, David L. Stalling
1992, Journal of Applied Toxicology (12) 165-177
Brown bullheads were given a single intraperitoneal dose of 0, 5, 25 or 125 mg kg−1 benzo[a]pyrene (BaP), a carcinogenic polycyclic aromatic hydrocarbon, and evaluated over 18 months. Flow cytometric analyses of hepatocyte DNA content indicated an increase in DNA synthesis in BaP-exposed fish prior to day 14 post-exposure. Thereafter, all...
Holocene coastal development on the Florida peninsula
Richard Davis, Albert C. Hine, Eugene A. Shinn
1992, SEPM Special Publication (48) 193-212
The Florida peninsula contains five distinct coastal sections, each resulting from its own spectrum of coastal processes and sediment availability during a slowly rising, late Holocene sea level. The east coast barrier system is wave-dominated and has a large cuspate foreland (Cape Canaveral) near its middle. The Florida Keys and...
Gravity modelling across the Transantarctic Mountains, Northern Victoria Land
T.F. Redfield, J. C. Behrendt
1992, Book chapter, Recent Progress in Antarctic Earth Science: Terra Scientific Publishing Company
During GANOVEX V and GANOVEX VI, new gravity data were collected in northern Victoria Land. The GANOVEX V data cover the Mt. Melbourne 1:250.000 quadrangle, while the GANOVEX VI data Transantarctic Mountains south of the Drygalski Ice Tongue. The two data sets are connected by a coastal traverse. The measurements...
Numerical modelling of uplift and subsidence adjacent to the Transantarctic Mount front
T.A. Stern, Uri S. ten Brink, M.P. Bott
1992, Conference Paper, Recent Progress in Antarctic Earth Science
The Transantarctic Mountains form one of the largest rift shoulder uplifts in the world. Uplift of the mountains, and coeval subsidence in the Ross Embayment, are modelled with both elastic flexure equations and with the viscoelastic finite element method. Most of the geological constraints are adequately satisfied by the elastic...
On the age of the penultimate full glaciation of New England
R. N. Oldale, S.M. Colman
1992, GSA Special Papers (270) 163-170
Tills that discontinuously underlie the late Wisconsinan till throughout New England represent the penultimate full glaciation of the region. In southern New England, the late Wisconsinan till and the tills that locally underlie it are informally referred to as upper and lower tills, respectively. For the most part, the ages...
Sea-level rise and its implications to coastal planning and management
D. L. Peck, S.J. Williams
P. Fabbri, editor(s)
1992, Conference Paper, Ocean Management in Global Change: Proceedings of the Conference on Ocean Management in Global Change
No abstract available....
Interoceanic variation in the rare earth, major, and trace element depositional chemistry of chert: Perspectives gained from the DSDP and ODP record
R.W. Murray, Marilyn R. Buchholtz ten Brink, David C. Gerlach, G. Price Russ, David L. Jones
1992, Geochimica et Cosmochimica Acta (56) 1897-1913
Rare earth element (REE), major, and trace element abundances and relative fractionations in forty nodular cherts sampled by the Deep Sea Drilling Project (DSDP) and Ocean Drilling Program (ODP) indicate that the REE composition of chert records the interplay between terrigenous sources and scavenging from the local seawater. Major and...
Comment and Reply on "SeaMARC II mapping of transform faults in the Cayman Trough, Caribbean Sea"
N. Terence Edgar, William P. Dillon, Eric Rosencrantz, Paul Mann
1992, Geology (20) 382-384
No abstract available....
Rift flank uplifts and Hinterland Basins: Comparison of the Transantarctic Mountains with the Great Escarpment of southern Africa
Uri S. ten Brink, T. Stern
1992, Journal of Geophysical Research B: Solid Earth (97) 569-585
Uplifted rift margins are a common feature of continents and oceans. Two variants of rift flank morphologies have been recognized: One in which the topography warps down from an inland high toward the continental margin, and one where the tropographic peak lies close to the continental margin. The Great Escarpment...
Varied records of early Wisconsinan alpine glaciation in the western United States derived from weathering-rind thicknesses
Peter U. Clark, P.D. Lea
1992, GSA Special Papers 269-278
Weathering-rind thicknesses were measured on volcanic clasts in sequences of glacial deposits in seven mountain ranges in the western United States and in the Puget lowland. Because the rate of rind development decreases with time, ratios of rind thicknesses provide limits on corresponding age ratios. In all areas studied, deposits...
Remote sensing studies of the geomorphology of Surtsey, 1987-1991
James B. Garvin, R. S. Williams Jr.
1992, Report
The volcanic island of Surtsey, formed by explosive submarine and effusive subaerial eruptions between November 1963 and June 1967, consists of a complex combination of primary and redeposited tephra and alkaline olivine basalt lava flows in a 2.5 km2 area (Thorarinsson, 1967; Thorarinsson et al., 1964; Fridriksson, 1975). During the...
Tertiary marine pelecypods of California and Baja California: Erycinidae through Carditidae
Ellen James Moore
1992, Professional Paper 1228-E
No abstract available....
Acid base accounting--An improved method of interpreting overburden chemistry to predict the quality of coal-mine drainage
Keith Brady, Charles A. Cravotta III,
1992, Conference Paper, Proceedings Thirteenth Annual West Virginia Surface Mine Drainage Task Force Symposium
Acidic mine drainage (AMD), which results from the accelerated oxidation of pyrite (FeS2 ) in mined coal and overburden, has contaminated thousands of miles of streams in the Appalachian region of the United States. Acid‐base accounting (ABA), which simplifies the complex hydrogeochemical system through use of a limited number of...
Detection development needs for gas hydrates in sediments
R.D. Malone, William P. Dillon
1992, Conference Paper, Proceedings International Offshore and Polar Engineering Conference
No abstract available....
Rare earth, major and trace element composition of Leg 127 sediments
R.W. Murray, Marilyn R. Buchholtz ten Brink, Hans-Juergen Brumsack, David C. Gerlach, G. Price Russ
1992, Conference Paper, Proceedings of the Ocean Drilling Program, Scientific Results
The relative effects of paleoceanographic and paleogeographic variations, sediment lithology, and diagenetic processes on the final preserved chemistry of Japan Sea sediments are evaluated by investigating the rare earth element (REE), major element, and trace element concentrations in 59 squeeze-cake whole-round and 27 physical-property sample residues from Sites 794, 795,...
Seismic noise on Rarotonga: Surface versus downhole
Rhett Butler, C. R. Hutt
1992, Eos, Earth and Space Science News (73) 548-549
Seismic noise data are presented from the new Global Seismographic Network station, RAR, on the Island of Rarotonga in the South Pacific. Data from the first new borehole site in the GSN are compared with a surface vault installation. Initial indications from the data show that borehole siting on a...
Evidence from the Lamarck granodiorite for rapid late Cretaceous crust formation in California
D.S. Coleman, A. F. Glazner, T. P. Frost
1992, Science (258) 1924-1926
Strontium and neodymium isotopic data for rocks from the voluminous 90-million-year-old Lamarck intrusive suite in the Sierra Nevada batholith, California, show little variation across a compositional range from gabbro to granite. Data for three different gabbro intrusions within the suite are identical within analytical error and are consistent with derivation...
Synchronism of the Siberian Traps and the Permian-Triassic boundary
I.H. Campbell, Gerald K. Czamanske, V.A. Fedorenko, R.I. Hill, V. Stepanov
1992, Science (258) 1760-1763
Uranium-lead ages from an ion probe were taken for zircons from the ore-bearing Noril'sk I intrusion that is comagmatic with, and intrusive to, the Siberian Traps. These values match, within an experimental error of ±4 million years, the dates for zircons extracted from a tuff at the Permian-Triassic (P-Tr) boundary....
Strain accumulation across the Wasatch Fault near Ogden, Utah
James C. Savage, Michael Lisowski, W.H. Prescott
1992, Journal of Geophysical Research B: Solid Earth (97) 2071-2083
Deformation of a 70 by 40‐km trilateration network spanning the north trending Wasatch fault near Ogden, Utah, has been monitored from 1972 through 1990. All but nine of the 200 measurements are consistent with deformation that is linear in time. We presume that those nine observations are contaminated by some...
Interseismic deformation at the Nankai Trough, Japan, subduction zone
James C. Savage, Wayne R. Thatcher
1992, Journal of Geophysical Research B: Solid Earth (97) 11117-11135
Uplift along the coast of southwestern Japan following the 1944 Tonankai (Ms = 8.0) and 1946 Nankaido (Ms = 8.2) earthquakes has been inferred from the 1950–1985 tide gage records. Although uplift rates vary with geographic position, the temporal dependence at each site can be described as the superposition of an exponentially...
Coulomb plasticity within the fault zone
J.D. Byerlee, James C. Savage
1992, Geophysical Research Letters (19) 2341-2344
We represent a well‐developed fault by a layer of granular material (fault gouge) confined between two competent fault blocks. Slip on such a fault involves plastic shearing of the fault gouge. That is, the fault gouge behaves as a Coulomb material, and the plastic flow is accomplished by slip on...
Prehistoric rock avalanches in the Olympic Mountains, Washington
R. L. Schuster, R.L. Logan, P. T. Pringle
1992, Science (258) 1620-1621
Rock avalanches blocked streams in the Olympic Mountains southwest of Puget Sound during the past few thousand years. Limiting radiocarbon ages indicated that three or four of six avalanches occurred from 1000 to 1300 years ago or shortly thereafter. Most of the dates were from the outer preserved rings of...
The influence of pressure on petroleum generation and maturation as suggested by aqueous pyrolysis
L.C. Price, L.M. Wenger
1992, Organic Geochemistry (19) 141-159
Because fluid pressures are transient in sedimentary basins over geologic time, the effect of increasing fluid pressure on organic-matter metamorphism is difficult to determine, and conflicting opinions exist concerning its influence. Properly-performed aqueous-pyrolysis experiments can closely simulate hydrocarbon generation and maturation in nature, and thus offer an excellent way to...
