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

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Stratigraphy and paleoenvironments of the Shell 410-1 well, Georges Bank Basin, US North Atlantic outer continental shelf Stratigraphy and paleoenvironments of the Shell 410-1 well, Georges Bank Basin, US North Atlantic outer continental shelf

The Shell 410-1 well is the most downdip (seaward) hydrocarbon exploratory well in the Georges Bank Basin. It was drilled to a total depth of 4745 m RKB, and penetrated a section composed of Middle Jurassic to Quaternary sedimentary rocks. The lithostratigraphy of the section is described. The strata penetrated by the Shell 410-1 well are more marine than rocks at the updip (landward)...
Authors
L.J. Poppe, C. W. Poag, B.A. Swift

A mechanism for decoupling within the oceanic lithosphere revealed in the Troodos ophiolite A mechanism for decoupling within the oceanic lithosphere revealed in the Troodos ophiolite

Contrasting kinematic histories recorded in the sheeted dykes and underlying plutonic rocks of the Troodos ophiolite provide a new perspective on the mechanical evolution of oceanic spreading centres. The kinematic framework of the decoupling zone that partitions deformation between the sheeted dykes and plutonics contrasts with low-angle detachment models for slow-spreading ridges based...
Authors
Susan M. Agar, Kim D. Klitgord

Extending and expanding the life of older current meters Extending and expanding the life of older current meters

The EG&G Model 610 VACM and Model 630 VMCM are standards for ocean current measurements. It is simple to add peripheral sensors to the data stream of the VACM by use of add-on CMOS circuitry. The firmware control of the VMCM makes it virtually impossible to add sampling of additional sensors. Most of the electronic components used in the VACM are obsolete or difficult to replace and the...
Authors
W.J. Strahle, Marinna A. Martini

Large wave at Daytona Beach, Florida, explained as a squall-line surge Large wave at Daytona Beach, Florida, explained as a squall-line surge

On a clear calm evening during July 1992, an anomalously large wave, reportedly 6 m high struck the Daytona Beach, Florida area. It is hypothesized that a squall line and associated pressure jump, travelling at the speed of a free gravity wave, coupled resonantly with the sea surface forming the large wave or "squall-line surge'. The wave was forced along the length of the squall line...
Authors
A. H. Sallenger, J. H. List, G. Gelfenbaum, R. P. Stumpf, M. Hansen

Rift flank segmentation, basin initiation and propagation: a neotectonic example from Lake Baikal Rift flank segmentation, basin initiation and propagation: a neotectonic example from Lake Baikal

New surficial data (field, Landsat TM and topography) define morpho-tectonic domains and rift flank segmentation in the Ol'khon region of the Central Baikal rift. Deformation, drainage and depositional patterns indicate a change in the locus of active extension that may relate to a recent (
Authors
Susan M. Agar, Kim D. Klitgord

Continental climate response to orbital forcing from biogenic silica records in Lake Baikal Continental climate response to orbital forcing from biogenic silica records in Lake Baikal

CHANGES in insolation caused by periodic changes in the Earth's orbital parameters provide the primary forcing for global ice ages1-6. But it is not clear to what extent the climates in continental interiors are controlled directly by regional variations in insolation and to what extent they are driven instead by the highly nonlinear response of the oceans and ice sheets. Here we...
Authors
Steven M. Colman, J.A. Peck, E.B. Karabanov, Susan J. Carter, J.P. Bradbury, J.W. King, D. F. Williams

Glacial removal of late Cenozoic subglacially emplaced volcanic edifices by the West Antarctic ice sheet Glacial removal of late Cenozoic subglacially emplaced volcanic edifices by the West Antarctic ice sheet

Local maxima of the horizontal gradient of pseudogravity from closely spaced aeromagnetic surveys over the Ross Sea, northwestern Ross Ice Shelf, and the West Antarctic ice sheet, reveal a linear magnetic rift fabric and numerous subcircular, high-amplitude anomalies. Geophysical data indicate two or three youthful volcanic edifices at widely separated areas beneath the sea and ice cover...
Authors
John C. Behrendt, D. D. Blankenship, D. Damaske, A. K. Cooper

Silurian tectonic history of Penobscot Bay region, Maine Silurian tectonic history of Penobscot Bay region, Maine

Early Paleozoic amalgamation of composite terranes was contemporaneous at widely separated regions that were later accreted to either ancestral North America or to Gondwana as those two continents approached each other. Peri-Gondwanan terranes formed from Late Cambrian and Early Ordovician rocks were amalgamated in the Late Ordovician and Early Silurian to form the Salinic orogenic belt...
Authors
D. B. Stewart, J. D. Unger, D. R. Hutchinson
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