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Scientific literature and information products produced by Woods Hole Coastal and Marine Science Center staff

Filter Total Items: 1725

Digital Seismic-Reflection Data from Eastern Rhode Island Sound and Vicinity, 1975-1980

During 1975 and 1980, the U.S. Geological Survey (USGS) conducted two seismic-reflection surveys in Rhode Island Sound (RIS) aboard the research vessel Asterias: cruise ASTR75-June surveyed eastern RIS in 1975 and cruise AST-80-6B surveyed southern RIS in 1980. Data from these surveys were recorded in analog form and archived at the USGS Woods Hole Coastal and Marine Science Center's...
Authors
K.Y. McMullen, L.J. Poppe, N.K. Soderberg

Sand resources, regional geology, and coastal processes of the Chandeleur Islands Coastal System: An evaluation of the Breton National Wildlife Refuge

Breton National Wildlife Refuge, the Chandeleur Islands chain in Louisiana, provides habitat and nesting areas for wildlife and is an initial barrier protecting New Orleans from storms. The U.S. Geological Survey (USGS) in partnership with the University of New Orleans Pontchartrain Institute for Environmental Sciences undertook an intensive study that included (1) an analysis of island...

Recolonization of gravel habitats on Georges Bank (northwest Atlantic)

Gravel habitats on continental shelves around the world support productive fisheries but are also vulnerable to disturbance from bottom fishing. We conducted a 2-year in situ experiment to measure the rate of colonization of a gravel habitat on northern Georges Bank in an area closed to fishing (Closed Area II) since December 1994. Three large (0.25 m2) sediment trays containing...
Authors
Jeremy S. Collie, Jerome M. Hermsen, Page C. Valentine

Digital seismic-reflection data from western Rhode Island Sound, 1980

During 1980, the U.S. Geological Survey (USGS) conducted a seismic-reflection survey in western Rhode Island Sound aboard the Research Vessel Neecho. Data from this survey were recorded in analog form and archived at the USGS Woods Hole Science Center's Data Library. Due to recent interest in the geology of Rhode Island Sound and in an effort to make the data more readily accessible...
Authors
K.Y. McMullen, L.J. Poppe, N.K. Soderberg

Constructing Uniform Resource Locators (URLs) for Searching the Marine Realms Information Bank

The Marine Realms Information Bank (MRIB) is a digital library that provides access to free online scientific information about the oceans and coastal regions. To search its collection, MRIB uses a Common Gateway Interface (CGI) program, which allows automated search requests using Uniform Resource Locators (URLs). This document provides an overview of how to construct URLs to execute...
Authors
Guthrie A. Linck, Alan Allwardt, Frances L. Lightsom

Holocene evolution of Apalachicola Bay, Florida

A program of geophysical mapping and vibracoring was conducted to better understand the geologic evolution of Apalachicola Bay. Analyses of the geophysical data and sediment cores along with age control provided by 34 AMS 14C dates on marine shells and wood reveal the following history. As sea level rose in the early Holocene, fluvial deposits filled the Apalachicola River paleochannel...
Authors
Lisa Osterman, David C. Twichell, Richard Z. Poore

Thermal conductivity of hydrate-bearing sediments

A thorough understanding of the thermal conductivity of hydrate-bearing sediments is necessary for evaluating phase transformation processes that would accompany energy production from gas hydrate deposits and for estimating regional heat flow based on the observed depth to the base of the gas hydrate stability zone. The coexistence of multiple phases (gas hydrate, liquid and gas pore...
Authors
Douglas D. Cortes, Ana I. Martin, Tae Sup Yun, Franco M. Francisca, J. Carlos Santamarina, Carolyn Ruppel

Acquiring marine data in the Canada Basin, Arctic Ocean

This article describes the logistical challenges and initial data sets from geophysical seismic reflection, seismic refraction, and hydrographic surveys in the Canada Basin conducted by scientists with U.S. and Canadian government agencies (Figure 1a) to fulfill the requirements of the United Nations Convention on the Law of the Sea to determine sediment thickness, geological origin, and...
Authors
Deborah Hutchinson, H.R. Jackson, John W. Shimeld, C.B. Chapman, Jonathan R. Childs, T. Funck, R.W. Rowland

Paleoenvironmental recovery from the Chesapeake Bay bolide impact: The benthic foraminiferal record

The late Eocene Chesapeake Bay bolide impact transformed its offshore target site from an outer neritic, mid-shelf seafloor into a bathyal crater basin. To obtain a depositional record from one of the deepest parts of this basin, the U.S. Geological Survey (USGS) and the International Continental Scientific Drilling Program (ICDP) drilled a 1.76-km-deep core hole near Eyreville, Virginia...
Authors
C. Wylie Poag

Subsurface control on seafloor erosional processes offshore of the Chandeleur Islands, Louisiana

The Chandeleur Islands lie on the eastern side of the modern Mississippi River delta plain, near the edge of the St. Bernard Delta complex. Since abandonment approximately 2,000 years b.p., this delta complex has undergone subsidence and ravinement as the shoreline has transgressed across it. High-resolution seismic-reflection, sidescan-sonar, and bathymetry data show that seafloor...
Authors
David C. Twichell, Elizabeth A. Pendleton, Wayne E. Baldwin, James G. Flocks

The stable carbon isotope biogeochemistry of acetate and other dissolved carbon species in deep subseafloor sediments at the northern Cascadia Margin

Ocean drilling has revealed the existence of vast microbial populations in the deep subseafloor, but to date little is known about their metabolic activities. To better understand the biogeochemical processes in the deep biosphere, we investigate the stable carbon isotope chemistry of acetate and other carbon-bearing metabolites in sediment pore-waters. Acetate is a key metabolite in the...
Authors
Verena B. Heuer, John W. Pohlman, Marta E. Torres, Marcus Elvert, Kai-Uwe Hinrichs

Understanding differences between DELFT3D and empirical predictions of alongshore sediment transport gradients

Predictions of alongshore transport gradients are critical for forecasting shoreline change. At the previous ICCE conference, it was demonstrated that alongshore transport gradients predicted by the empirical CERC equation can differ substantially from predictions made by the hydrodynamics-based model Delft3D in the case of a simulated borrow pit on the shoreface. Here we use the Delft3D...
Authors
Jeffrey H. List, Lindino Benedet, Daniel M. Hanes, Peter R Ruggiero
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