Open AccessDOI
Physical properties of marine sediments
John E. Nafe,Charles L. Drake +1 more
TLDR
In this paper, it was shown that seafloor sediments that blanket the ocean floor are of widely varying thickness but seismic observations indicate that 200 to 400 meters in the Pacific and one kilometer in the Atlantic are fairly typical values for deep water.Abstract:
: The unconsolidated sediments that blanket the ocean floor are of widely varying thickness but seismic observations indicate that 200 to 400 meters in the Pacific and one kilometer in the Atlantic are fairly typical values for deep water. At present direct observation of these sediments is limited to such samples as may be recovered by dredging or coring operations, for drilling has been carried out only in the shallow waters of the coastal shelves. Knowledge of the physical properties of the great bulk of the sediments deeper than the few tens of feet reached by coring equipment is thus necessarily derived from geophysical observations.read more
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Structural profile of the northwestern Caribbean
TL;DR: In this paper, a seismic reflection and gravity profile across the continental margin of the Yucatan Peninsula, Yucacan Basin, Cayman Ridge, and Cayman Trough suggests that sediments in the yucatan basin consist of a thick succession of beds dominated by turbidites that overlie a thick but irregular sequence of beds, probably dominated by pelagic deposits.
Journal ArticleDOI
The crustal structure and tectonic development of the continental margin of the Amundsen Sea Embayment, West Antarctica: implications from geophysical data
Thomas Kalberg,Karsten Gohl +1 more
TL;DR: In this article, two P-wave velocity-depth models based on forward travel-time modelling of nine ocean bottom hydrophone recordings provide an insight into the lithospheric structure beneath the Amundsen Sea Embayment.
Journal ArticleDOI
The paleo-Etel River incised valley on the Southern Brittany inner shelf (Atlantic coast, France): Preservation of Holocene transgression within the remnant of a middle Pleistocene incision?
Guilhem Estournès,Guilhem Estournès,David Menier,David Menier,François Guillocheau,Pascal Roy,Fabien Paquet,Evelyne Goubert +7 more
TL;DR: In this article, the study of a dense and regular grid of 59 High Resolution seismic profiles supplemented by 23 superficial vibro-cores has led to a three-dimensional detailed sedimentary model of the paleo-Etel River buried valley located on the inner shelf of South Brittany (Atlantic Coast, France).
Journal ArticleDOI
Physical and acoustic properties of inner shelf sediments in the South Sea, Korea
Sung Ho Bae,Dae Choul Kim,Gwang Soo Lee,Gil Young Kim,Seong-Pil Kim,Young Kyo Seo,Jeong Chang Kim +6 more
TL;DR: In this paper, core sediment sampling has been conducted to investigate the physical and acoustic properties of inner shelf sediments in the South Sea, Korea, and two piston core samples were analyzed for sediment texture (grain size as well as, fractions of sand, silt, and clay), physical properties (porosity, water content, bulk density, grain density, and shear strength), and compression rate and attenuation).
Journal ArticleDOI
New seismic data support Cenozoic rifting in George VI Sound, Antarctic Peninsula
A. C. Bell,Edward C. King +1 more
TL;DR: In this article, a combination of new seismic, synthetic-aperture radar and previously acquired data suggests subduction-related rifting in the Sound was segmented, with opening in the south predominately by normal extension whilst in the north, dextral transtension predominated.