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

Filter Total Items: 1737

Numerical simulations of hydrothermal circulation resulting from basalt intrusions in a buried spreading center Numerical simulations of hydrothermal circulation resulting from basalt intrusions in a buried spreading center

A two-dimensional, one by two-kilometer section through the seafloor was simulated with a numerical model to investigate coupled fluid and heat flow resulting from basalt intrusions in a buried spreading center. Boundary and initial conditions and physical properties of both sediments and basalt were constrained by field surveys and drilling in the Guaymas Basin, central Gulf of...
Authors
A.T. Fisher, T.N. Narasimhan

Rare earth elements in Japan Sea sediments and diagenetic behavior of Ce/Ce∗: results from ODP Leg 127 Rare earth elements in Japan Sea sediments and diagenetic behavior of Ce/Ce∗: results from ODP Leg 127

The relative effects of paleoceanographic and paleogeographic variations, sediment lithology, and diagenetic processes on the recorded rare earth element (REE) chemistry of Japan Sea sediments are evaluated by investigating REE total abundances and relative fractionations in 59 samples from Ocean Drilling Program Leg 127. REE total abundances (ΣREE) in the Japan Sea are strongly...
Authors
R. Murray, Marilyn R. Buchholtz ten Brink, Hans-Juergen Brumsack, David C. Gerlach, G. Price Russ

A method for the concentration of fine-grained rutile (TiO2) from sediment and sedimentary rocks by chemical leaching A method for the concentration of fine-grained rutile (TiO2) from sediment and sedimentary rocks by chemical leaching

Quaternary marine sediment in the Gulf of Maine basins contains 0.7 to 1.0 wt percent TiO2 (determined by X-ray fluorescence spectrometry). Most of this TiO2 exists in the form of silt-size rutile crystals that are visible by using the petrographic microscope with transmitted light (Valentine and Commeau, 1990). The identification of rutile was confirmed by using a scanning electron...
Authors
Judith A. Commeau, Page C. Valentine

The detection of coastal-trapped waves The detection of coastal-trapped waves

We outline a simple method for estimating the cross-spectral matrix of coastal-trapped wave amplitudes,A, from a set of oceanographic observations. Specifically, we propose that A may be estimated by (M'M)-1M'UM(M'M)-1 where a prime denote conjugate transpose, U is the sample cross-spectral matrix of observations and M is a matrix which has the spatial form of the waves for columns. In...
Authors
John W. Haines, K. Thompson, Doug P. Wiens

National workshop on gas hydrates National workshop on gas hydrates

The range of present knowledge on the subject of gas hydrates and related federal research programs was the topic of discussion at the National Workshop on Gas Hydrates, April 23–24. The intention of the meeting was to provide the impetus for an expanded and broader‐based national research program in both academia and government. Held at the U.S. Geological Survey National Center, Reston...
Authors
M.D. Max, William P. Dillon, R.D. Malone, Keith A. Kvenvolden

The neotectonic setting of Puerto Rico The neotectonic setting of Puerto Rico

The island of Puerto Rico, in the northeast Caribbean, lies within a broad deformation zone between the Caribbean and North American plates. The simplest model for the tectonic setting of Puerto Rico has major strike-slip movement on nearly east-west lines in the vicinity of the Puerto Rico Trench coupled to a small counterclockwise rotation of a Puerto Rico block within the broader...
Authors
D.G. Masson, Kathryn M. Scanlon

Multiple outer-reef tracts along the south Florida bank margin: Outlier reefs, a new windward-margin model Multiple outer-reef tracts along the south Florida bank margin: Outlier reefs, a new windward-margin model

High-resolution seismic-reflection profiles off the lower Florida Keys reveal a multiple outlier-reef tract system ~0.5 to 1.5 km sea-ward of the bank margin. The system is characterized by a massive, outer main reef tract of high (28 m) unburied relief that parallels the margin and at least two narrower, discontinuous reef tracts of lower relief between the main tract and the shallow...
Authors
Barbara H. Lidz, A. C. Hine, Eugene A. Shinn, Jack L. Kindinger

Late Quaternary stratigraphy and depositional history of the Long Island Sound basin Late Quaternary stratigraphy and depositional history of the Long Island Sound basin

The stratigraphy of Late Quaternary geologic units beneath Long Island Sound (LIS) is interpreted from 3,500 km of high-resolution, seismic-reflection profiles supplemented by vibracore data. Knowledge gained from onshore regional geologic studies and previous offshore investigations is also incorporated in these interpretations. Glacial deposits overlie and nearly fill an Inner Lowland...
Authors
Ralph S. Lewis, Janet Radway Stone

Book review: The future of Antarctica Book review: The future of Antarctica

A conference on Antarctica: an Exploitable Resource too Valuable to Develop? took place at the Sir Robert Menzies Centre for Australian studies at the University of London in either late 1989 or early 1990. The papers were compiled into this small book (only 104 pages of text exclusive of useful appendices containing maps, texts of the Antarctic treaty and the Convention on the...
Authors
John C. Behrendt

Geophysical studies of the West Antarctic rift system Geophysical studies of the West Antarctic rift system

The West Antarctic rift system extends over a 3000 × 750 km, largely ice covered area from the Ross Sea to the base of the Antarctic Peninsula, comparable in area to the Basin and Range and the East African rift system. A spectacular rift shoulder scarp along which peaks reach 4–5 km maximum elevation marks one flank and extends from northern Victoria Land-Queen Maud Mountains to the...
Authors
John C. Behrendt, W.E. LeMasurier, A. K. Cooper, Franz Tessensohn, A. Trehu, D. Damaske
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