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

Filter Total Items: 1781

Sea-floor methane blow-out and global firestorm at the K-T boundary Sea-floor methane blow-out and global firestorm at the K-T boundary

A previously unsuspected source of fuel for the global firestorm recorded by soot in the Cretaceous-Tertiary impact layer may have resided in methane gas associated with gas hydrate in the end-Cretaceous seafloor. End-Cretaceous impact-generated shock and megawaves would have had the potential to initiate worldwide oceanic methane gas blow-outs from these deposits. The methane would...
Authors
M.D. Max, William P. Dillon, C. Nishimura, B.G. Hurdle

Physical properties of sediments from the JAPEX/JNOC/GSC Mallik 2L-38 gas hydrate research well Physical properties of sediments from the JAPEX/JNOC/GSC Mallik 2L-38 gas hydrate research well

A 1150 m deep gas hydrate research well was drilled in the Canadian Arctic in February and March 1998 to investigate the interaction between the presence of gas hydrate and the natural conditions presented by the host sediments. Profiles of the following measured and derived properties are presented from that investigation: water content, sediment wet bulk density, grain size, porosity...
Authors
W.J. Winters

Plate deformation at depth under northern California: Slab gap or stretched slab? Plate deformation at depth under northern California: Slab gap or stretched slab?

Plate kinematic interpretations for northern California predict a gap in the underlying subducted slab caused by the northward migration of the Pacific-North America-Juan de Fuca triple junction. However, large-scale decompression melting and asthenospheric upwelling to the base of the overlying plate within the postulated gap are not supported by geophysical and geochemical observations...
Authors
Uri S. ten Brink, N. Shimizu, P.C. Molzer

Space and time scales of shoreline change at Cape Cod National Seashore, MA, USA Space and time scales of shoreline change at Cape Cod National Seashore, MA, USA

Different processes cause patterns of shoreline change which are exhibited at different magnitudes and nested into different spatial and time scale hierarchies. The 77-km outer beach at Cape Cod National Seashore offers one of the few U.S. federally owned portions of beach to study shoreline change within the full range of sediment source and sink relationships, and barely affected by...
Authors
J.R. Allen, C.L. LaBash, J. H. List

Mapping U.S. continental shelves Mapping U.S. continental shelves

No abstract available.
Authors
J.V. Gardner, Bradford Butman, L. A. Mayer, J.H. Clarke

Erosion, weathering, and sedimentation Erosion, weathering, and sedimentation

This chapter explains how a variety of nuclides have been applied to catchments throughout the world. One of the most exciting new approaches for quantifying the rate at which catchments erode is the measurement of in situ produced cosmogenic nuclides. The commonly applied nuclides for erosion rate measurements are 3He, 10Be, 26A1, and 36C1. Use of such nuclides was restricted to...
Authors
Paul R. Bierman, Achim Albrecht, Michael H. Bothner, Erik Thorson Brown, Thomas D. Bullen, Leda-Beth Gray, Laurent Turpin
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