Miocene rapakivi granites in the southern Death Valley region, California, USA
James P. Calzia, O.T. Ramo
2005, Earth-Science Reviews (73) 221-243
Rapakivi granites in the southern Death Valley region, California, include the 12.4-Ma granite of Kingston Peak, the ca. 10.6-Ma Little Chief stock, and the 9.8-Ma Shoshone pluton. All of these granitic rocks are texturally zoned from a porphyritic rim facies, characterized by rapakivi textures and miarolitic cavities, to an equigranular...
Mapping shores and coastal terrain
R. A. Morton
2005, Book chapter
No abstract available...
Geologic framework, evolution, and sediment resources for restoration of the Louisiana Coastal Zone
Mark Kulp, Shea Penland, S. Jeffress Williams, Chris Jenkins, Jim Flocks, Jack Kindinger
2005, Journal of Coastal Research (44) 56-71
The Louisiana Coastal Zone along the north-central Gulf of Mexico represents one of America's most important coastal ecosystems in terms of natural resources, human infrastructure, and cultural heritage. This zone also has the highest rates of coastal erosion and wetland loss in the nation because of a complex combination of...
Photogrammetry
E. Robert Thieler, Cheryl J. Hapke
2005, Book chapter, Encyclopedia of Coastal Science
No abstract available....
Exploring the persistence of sorted bedforms on the inner-shelf of Wrightsville Beach, North Carolina
Benjamin T. Gutierrez, George Voulgaris, E. Robert Thieler
2005, Continental Shelf Research (25) 65-90
Geological studies offshore of Wrightsville Beach, North Carolina reveal subtle large-scale regions of coarse sand with gravel and shell hash (widths between 100 and 200 m and negative relief of ∼1 m) that trend obliquely to the coast. It was previously suggested that these regions serve as conduits for sand exchange between...
Habitat and fish population in the deep-sea Oculina coral ecosystem of the western Atlantic
2005, Conference Paper, Benthic habitats and the effects of fishing: Proceedings of Symposium on Effects of Fishing Activities on Benthic Habitats--Linking Geology, Biology, Socioeconomics, and Management
In this paper, we describe results from mapping studies conducted in 2001 and improvements to reef fish populations that have occurred in the last few years. We find that less than 10% of the area contains intact Oculina coral thickets, which we continue to attribute primarily to trawling. In addition,...
The ecological importance of mangroves in Baja California Sur: conservation implications for an endangered ecosystem
Robert C. Whitmore, R.C. Brusca, P. Gonzalez-Zamorano, R. Mendoza-Salgado, E.S. Amador-Silva, G. Holquin, C. C. McIvor, F. Galvan-Magana, J.A. Seminoff, J.L. de la Luz
Jean-Luc E. Cartron, Gerardo Ceballos, R.S. Felger, editor(s)
2005, Book chapter, Biodiversity, ecosystems, and conservation in Northern Mexico
No abstract available...
Perennial Antarctic lake ice: a refuge for cyanobacteria in an extreme environment
J.C. Priscu, E.E. Adams, H.W. Paerl, C.H. Fritsen, J.E. Dore, J.T. Lisle, C.F. Wolf, Jill A. Mikucki
John D. Castello, Scott O. Rogers, editor(s)
2005, Book chapter, Life in ancient ice
No abstract available...
Preliminary assessment of recent deposition related to a crevasse splay on the Mississippi River delta: Implications for coastal restoration
N.F. Ferina, J. G. Flocks, Jack L. Kingdinger, M.D. Miner, J. P. Motti, Paul C. Chadwick, James B. Johnston
2005, Gulf Coast Association of Geological Societies Transactions (55) 185-194
Historically, the Mississippi River has replenished sediment across the lower deltaic plain, abating land loss. However, flood-control structures along the river now restrict this natural process and divert sediment from the modern delta offshore to the shelf break, thereby removing it from the coastal system. Localized crevasse splays, however,...
Mapping beaches and coastal terrain
Robert Morton
2005, Book chapter, Encyclopedia of coastal science
No abstract available...
Comparison of cytochrome P450 1A induction in blood and liver cells of sea otters
Brenda E. Ballachey, Paul W. Snyder, Tamara Kondratyuk
2005, Report
Sea otters in oiled areas of western PWS had elevated levels of cytochrome P450 1A (CYP1A), a biomarker of hydrocarbon exposure, measured in blood samples collected from otters in 1996- 98. In summer 2001, as part of project 01423, we have proposed to resample CYP1A in blood from sea otters...
Scanning electron microscope studies of some early Miocene diatoms from the equatorial Pacific Ocean with descriptions of two new species, Actinocyclus jouseae Barron and Actinocyclus nigriniae Barron
John A. Barron
2005, Proceedings of the California Academy of Sciences (1907) (56) 27-37
Scanning electron microscope (SEM) and light microscope (LM) studies are used to propose and describe two new species, Actinocyclus jouseae Barron, sp. nov. and Actinocyclus nigriniae Barron, sp. nov. from lower Miocene sediments from equatorial Pacific ODP Site 1219. Parallel SEM and LM studies reveal that Thalassiosira bukryi Barron should be transferred to Azpeitia...
Development of ecological indicator guilds for land management
A.J. Krzysik, H.E. Balbach, J.J. Duda, J.M. Emlen, D.C. Freeman, J.H. Graham, D.A. Kovacic, L.M. Smith, J.C. Zak
2005, Report
Agency land-use must be efficiently and cost-effectively monitored to assess conditions and trends in ecosystem processes and natural resources relevant to mission requirements and legal mandates. Ecological Indicators represent important land management tools for tracking ecological changes and preventing irreversible environmental damage in disturbed landscapes. The overall objective of the...
Implementing a U.S. national phenology network
J.L. Betancourt, M.D. Schwartz, D.D. Breshears, D.R. Cayan, M. D. Dettinger, D.W. Inouye, E. Post, B. C. Reed
2005, Eos, Transactions, American Geophysical Union (86) 539-542
The passing of seasons, as gauged by annual events or phenophases in organisms' life cycles, is arguably one of the most pervasive environmental variations on Earth. Shifts in seasonal timing, or phenology, are observed in flowering and other stages of plant development, animal migration and reproduction, hibernation, and the seasonal...
Appendix D: Selected statistical tables
Mary C. Hill, Claire R. Tiedeman
2005, Book chapter, Effective Groundwater Model Calibration: With Analysis of Data, Sensitivities, Predictions, and Uncertainty
No abstract available. ...
Guidelines 13 and 14—Prediction uncertainty
Mary C. Hill, Claire R. Tiedeman
2005, Book chapter, Effective Groundwater Model Calibration: With Analysis of Data, Sensitivities, Predictions, and Uncertainty
An advantage of using optimization for model development and calibration is that optimization provides methods for evaluating and quantifying prediction uncertainty. Both deterministic and statistical methods can be used. Guideline 13 discusses using regression and post-audits, which we classify as deterministic methods. Guideline 14 discusses inferential statistics and Monte Carlo...
Appendix B: Calculation details of the modified Gauss-Newton Method
Mary C. Hill, Claire R. Tiedeman
2005, Book chapter, Effective Groundwater Model Calibration: With Analysis of Data, Sensitivities, Predictions, and Uncertainty
No abstract available....
Calibrating transient and transport models and recalibrating existing models
Mary C. Hill, Claire R. Tiedeman
2005, Book chapter, Effective Groundwater Model Calibration: With Analysis of Data, Sensitivities, Predictions, and Uncertainty
The methods presented in Chapters 3 to 8 are applicable to models of any system. However, there are special considerations when applying the methods to certain types of models. This chapter discusses three types of models that are of special interest to many scientific and engineering fields: transient models, transport...
A spatial, multivariable approach for identifying proximate sources of Escherichia coli to Maumee Bay, Lake Erie, Ohio
Donna S. Francy, Pamela Struffolino, Amie M. G. Brady, Daryl F. Dwyer
2005, Open-File Report 2005-1386
Historical development of the U.S. Geological Survey hydrologic monitoring and investigative programs at the Idaho National Engineering and Environmental Laboratory, Idaho, 1949 to 2001
LeRoy L. Knobel, Roy C. Bartholomay, Joseph P. Rousseau
2005, Open-File Report 2005-1223
This report is a summary of the historical development, from 1949 to 2001, of the U.S. Geological Survey's (USGS) hydrologic monitoring and investigative programs at the Idaho National Engineering and Environmental Laboratory. The report covers the USGS's water-level monitoring program, water-quality sampling program, geophysical program, geologic framework program, drilling program,...
Surficial geologic interpretation and sidescan sonar imagery of the sea floor in west-central Long Island Sound
K.Y. McMullen, L.J. Poppe, V.F. Paskevich, E. F. Doran, M. S. Moser, E. B. Christman, A. L. Beaver
2005, Open-File Report 2005-1018
The United States Geological Survey (USGS) is working cooperatively with the National Oceanic and Atmospheric Administration (NOAA) and Connecticut Department of Environmental Protection (CT-DEP) to conduct detailed studies of the surficial geology in Long Island Sound (LIS). The study goals are to interpret sedimentary environments within the Sound, to further understand processes controlling sediment distribution, and...
Using the tracer-dilution discharge method to develop streamflow records for ice-affected streams in Colorado
Joseph P. Capesius, Joseph R. Sullivan, Gregory B. O’Neill, Cory A. Williams
2005, Scientific Investigations Report 2004-5164
Accurate ice-affected streamflow records are difficult to obtain for several reasons, which makes the management of instream-flow water rights in the wintertime a challenging endeavor. This report documents a method to improve ice-affected streamflow records for two gaging stations in Colorado. In January and February 2002, the U.S. Geological Survey,...
Regional geochemical results from the analyses of rock, soil, and vegetation samples — Big Delta B-2 quadrangle, Alaska
L. P. Gough, W. C. Day, J.G. Crock, B. M. Gamble, M. W. Henning, C. M. Ager, A. L. Meier, Paul H. Briggs, Z. A. Brown, M. Adams
2005, Open-File Report 2005-1431
No abstract available....
Base flow in the Great Lakes Basin
B.P. Neff, S.M. Day, A.R. Piggott, L. M. Fuller
2005, Scientific Investigations Report 2005-5217
Hydrograph separations were performed using the PART, HYSEP 1, 2, and 3, BFLOW and UKIH methods on 104,293 years of daily streamflow records from 3,936 streamflow-gaging stations in Ontario, Canada and the eight Great Lakes States of Illinois, Indiana, Michigan, Minnesota, New York, Ohio, Pennsylvania, and Wisconsin to estimate base-flow...
Preliminary geologic map of southernmost Texas, United States, and parts of Tamaulipas and Nuevo Leon, Mexico: Environmental health investigations in the United States-Mexico border region
William R. Page, D. Paco VanSistine, Kenzie J. Turner
2005, Open-File Report 2005-1409
No abstract available....
