Contrasting P‐T‐t paths: Thermochronologic evidence for a Late Paleozoic final assembly of the Avalon Composite Terrane in the New England Appalachians
R. P. Wintsch, J. F. Sutter, Michael J. Kunk, John N. Aleinikoff, Michael J. Dorais
1992, Tectonics 672-689
Strongly contrasting pressure‐temperature‐time paths for the Avalon composite terrane and the structurally overlying Putnam‐Nashoba zone in eastern New England obtained from thermochronologic and thermobarometric data are best explained by a late Paleozoic underthrusting of cover rocks by the Avalon composite terrane. We present new Ar and U‐Pb thermochronologic data that...
Coupling of a lake model with a high resolution climate model for climate change studies
Steven W. Hostetler, G. T. Bates, F. Giorgi
1992, Conference Paper, Proceedings of the workshop on the effects of global climate change on hydrology and water resources at the catchment scale
No abstract available....
A geographic information systems technique for monitoring contaminants in Galveston Bay, Texas
Marcia McNiff, P.F. Roscigno, W. Ji
1992, Conference Paper, Needs and Solutions for Pollution Monitoring, Control, and Abatement: Proceedings of the First Thematic Conference on Remote Sensing for Marine and Coastal Environments
A geographic information system (GIS) was used to compile a series of databases containing details concerning metal contamination and pollution sources to study their impacts on the Galveston Bay (TX) ecosystem. Using these databases, a series of maps with various overlays was created with ARC/INFO software. These maps allowed patterns...
Strontium isotope characterization of the Ash Meadows ground-water system, southern Nevada, USA
Zell E. Peterman, John S. Stuckless, Shannon A. Mahan, Brian D. Marshall, E. D. Gutentag, J. S. Downey
1992, Conference Paper, Water-rock interaction: Proceedings of the 7th international symposium on water-rock interaction
No abstract available....
Isotopic studies of fracture coatings at Yucca Mountain, Nevada, USA
Brian D. Marshall, J. F. Whelan, Zell E. Peterman, Kiyoto Futa, Shannon A. Mahan, John S. Stuckless
1992, Conference Paper, Water-rock interaction: Proceedings of the 7th international symposium on water-rock interaction-WRI-7
No abstract available....
Multiple temporal and spatial remote sensing data as inputs into a landcover resource geographic information system
Elijah Ramsey III, Craig A. Johnson
1992, Conference Paper, Albuquerque [technical papers] : 1992 Asprs-Acsm annual Convention
No abstract available....
Interaction of nest predation and food limitation in reproductive strategies
Thomas E. Martin
1992, Book chapter, Current ornithology
No abstract available....
Preliminary analysis of spectral data collected for the purpose of wetland discrimination
Elijah Ramsey III, R. Spell, James B. Johnston
1992, Conference Paper, Albuquerque [technical papers] : 1992 Asprs-Acsm annual Convention
No abstract available....
Knowledge-based gis approaches: A prototype expert system for wetland resource management
Wei Ji, James B. Johnston, Marcia McNiff, Loyd C. Mitchell
1992, Conference Paper, Proceedings, the third national U.S. Fish and Wildlife Service geographic information systems workshop, May 3-6, 1992
No abstract available....
Canvasback food density in the Mississippi River Delta: Habitat and temporal differences
Ronald R. Bielefeld, Alan D. Afton
1992, Conference Paper, Proceedings of the annual conference, Southeastern Association of Fish and Wildlife Agencies., 46th 1992
No abstract available...
Ecology and management of postbreeding waterfowl
William L. Hohman, C. Davison Ankney, David H. Gordon
1992, Book chapter, Ecology and management of breeding waterfowl
No abstract available....
U-Th-Pb, Rb-Sr, and Sm-Nd isotopic systematics of lunar troctolitic cumulate 76535: Implications on the age and origin of this early lunar, deep-seated cumulate
Wayne R. Premo, M. Tatsumoto
1992, Conference Paper, Proceedings of lunar and planetary science
No abstract available....
Isotopic ages and characteristics of ancient (pre-Serenitatis) lunar crustal rocks at Apollo 17
Wayne R. Premo, M. Tatsumoto
1992, Conference Paper, Workshop on geology of the Apollo 17 landing site
No abstract available....
Size bias in traditional analyses of substitutive competition experiments
James B. Grace, Janet R. Keough, Glenn R. Guntenspergen
1992, Oecologia (90) 429-434
The objective of this study was to examine the claim that traditional measures of competitive performance in substitutive experiments are biased towards larger plants. Results from a three-year diallele experiment of 6 marsh plant species were analyzed using both Relative Yields (a traditional analysis) and the Relative Efficiency Index...
Regional evaluations of acid deposition effects on forests: Eastern spruce-fir
A. H. Johnson, A. J. Friedland, E. K. Miller, J. J. Battles, Thomas G. Huntington, D. R. Vann, G. R. Strimbeck
1992, Book chapter, Atmospheric deposition and forest nutrient cycling: A synthesis of the integrated forest study
Having reviewed the results of the Integrated Forest Study (IFS) project, we now try to place the results in a larger perspective by very briefly summarizing acid deposition effects and their potential role in forest health in the several forest types represented in the IFS project. This chapter gives brief...
Ecology of band-tailed pigeons in Oregon
R. L. Jarvis, M.F. Passmore
1992, Biological Report - US Fish & Wildlife Service (6)
The ecology of band-tailed pigeons (Columba fasciata) was investigated in western Oregon to assess the roles of survival and recruitment to population status and the relation of food, minerals, and diet to reproduction strategy. Band-tailed pigeons congregated at mineral deposits to consume minerals from mid-June to mid-September. Males generally arrived...
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...
Hydrate detection
William P. Dillon, Thomas S. Ahlbrandt
1992, Conference Paper, Proceedings of the natural gas research and development contractors review meeting
No abstract available....
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...
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...
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...
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...
Physical oceanographic investigation of Massachusetts and Cape Cod Bays
W. Rockwell Geyer, George B. Gardner, Wendell S. Brown, James D. Irish, Bradford Butman, T.C. Loder, Richard P. Signell
1992, Report
This physical oceanographic study of the Massachusetts Bays (fig. 1) was designed to provide for the first time a bay-wide description of the circulation and mixing processes on a seasonal basis. Most of the measurements were conducted between April 1990 and June 1991 and consisted of moored observations to study...
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....
Diagenetic formation of bedded chert: Evidence from chemistry of the chert-shale couplet
Richard L. Murray, David L. Jones, Marilyn R. Buchholtz ten Brink
1992, Geology (20) 271-274
Theories concerning the formation of bedded chert traditionally have emphasized either depositional or diagenetic processes. Major and rare earth element data from Franciscan assemblage (Mesozoic) and Claremont Formation (Miocene) bedded chert sequences, along with physical observations such as the presence of rare and highly corroded radiolarians in shale interbeds, are...
