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Publications

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

Filter Total Items: 1694

Decadal and annual changes in biogenic opal and carbonate fluxes to the deep Sargasso Sea

Analyses of samples from a 14-year series of sediment-trap deployments in the deep Sargasso Sea reveal a significant trend in the ratio of the sinking fluxes of biogenic calcium carbonate and silica. Although there are pronounced seasonal cycles for both flux components, the overall opal/CaCO3 ratio changed by 50% from 1978 to 1991 (largely due to a decrease of opal flux), while total flux had no
Authors
W.G. Deuser, T.D. Jickells, Judith A. Commeau

Pulling the rug out from under California: Seismic images of the Mendocino Triple Junction region

The active tectonic regime of northwestern California changes abruptly from transform motion to subduction at the Mendocino Triple Junction. Northward migration of the triple junction has been a major factor in the tectonic history of the continental margin of California since the Oligocene and continues at present. Understanding the effects of triple junction migration on the structure of the cru
Authors
Anne M. Tréhu

Radiocarbon ages of pre-bomb clams and the hard-water effect in Lakes Michigan and Huron

Five radiocarbon ages, all determined by accelerator mass spectrometry, have been obtained for two pre-bomb bivalves from Lake Michigan and one from Lake Huron. After correcting those ages for the fractionation of14C in calcite and for the radioactively inert CO2 in the atmosphere, we find residual ages, caused by the hard water effect, of about 250 years for Lake Michigan and 440 years for Lake H
Authors
David K. Rea, Steven M. Colman

Paleocene to Middle Miocene planktic foraminifera of the southwestern Salisbury Embayment, Virginia and Maryland: biostratigraphy, allostratigraphy, and sequence stratigraphy

The Paleocene to Middle Miocene sedimentary fill of the southwestern Salisbury Embayment contains a fragmental depositional record, interrupted by numerous local diastems and regional unconformities. Using planktic foraminiferal biostratigraphy, 15 unconformity-bounded depositional units have been identified, assigned to six formations and seven alloformations previously recognized in the embaymen
Authors
C. W. Poag, J.A. Commeau

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 (<l Ma) change in the kinematics of the Siberian plate boundary. The westwards migration of the border fault l
Authors
Susan M. Agar, Kim D. Klitgord

Data and information management at the Branch of Atlantic Marine Geology and the contaminated-sediment database

No abstract available.
Authors
Marilyn R. Buchholtz ten Brink, Frank T. Manheim, N.K. Soderberg, J. C. Hathaway

Landsat TM image maps of the Shirase and Siple Coast ice streams, West Antarctica

Fifteen 1: 250000 and one 1: 1000 000 scale Landsat Thematic Mapper (TM) image mosaic maps are currently being produced of the West Antarctic ice streams on the Shirase and Siple Coasts. Landsat TM images were acquired between 1984 and 1990 in an area bounded approximately by 78°-82.5°S and 120°- 160° W. Landsat TM bands 2, 3 and 4 were combined to produce a single band, thereby maximizing data co
Authors
Jane G. Ferrigno, Jerry L. Mullins, Jo Anne Stapleton, Robert Bindschadler, Ted A. Scambos, Lynda B. Bellisime, Jo-Ann Bowell, Alex V. Acosta
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