Studies of Deep-Sea Sedimentary Microtopography in the North Atlantic Ocean.
Many of the small-scale topographic features (dimensions of centimeters to kilometers) found on the Blake-Bahama Outer Ridge (western North Atlantic, water depth greater than 4000 m) and in the Rockall Trough (northeastern North Atlantic, water depth greater than 2000 m) have been formed as bed form...
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ftdtic:ADA061931 2023-05-15T17:27:31+02:00 Studies of Deep-Sea Sedimentary Microtopography in the North Atlantic Ocean. Flood,Roger Donald WOODS HOLE OCEANOGRAPHIC INSTITUTION MASS 1978-10 text/html http://www.dtic.mil/docs/citations/ADA061931 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA061931 en eng http://www.dtic.mil/docs/citations/ADA061931 APPROVED FOR PUBLIC RELEASE DTIC AND NTIS Physical and Dynamic Oceanography Geology Geochemistry and Mineralogy *MARINE GEOLOGY *NORTH ATLANTIC OCEAN *OCEAN BOTTOM TOPOGRAPHY *DEEP OCEANS OCEAN CURRENTS THESES BATHYMETRY OCEAN BOTTOM SAMPLING ECHO RANGING THERMOCLINES OCEAN RIDGES OCEANOGRAPHIC EQUIPMENT OCEANOGRAPHIC SHIPS UNDERWATER PHOTOGRAPHY TRIESTE 2 vessel WUNR083004 Text 1978 ftdtic 2016-02-20T15:14:51Z Many of the small-scale topographic features (dimensions of centimeters to kilometers) found on the Blake-Bahama Outer Ridge (western North Atlantic, water depth greater than 4000 m) and in the Rockall Trough (northeastern North Atlantic, water depth greater than 2000 m) have been formed as bed forms of deep currents. These bed forms, all developed in cohesive sediments, include current ripples (spacings of tens of centimeters, formed transverse to the flow), longitudinal triangular ripples (spacings of meters, formed in sandy muds and parallel to the flow), furrows (spacings of tens to 100's of meters, formed parallel to the flow and presently either erosional or depositional), and regular sediment waves (spacings of a few kilometers, now found oblique to the flow and migrating either upstream or downstream). The local distribution of any given bed form is influenced by the presence of larger features. Bed forms are often found in zones which strike parallel to the regional contours. Doctoral thesis. Text North Atlantic Defense Technical Information Center: DTIC Technical Reports database Rockall Trough ENVELOPE(-15.036,-15.036,53.825,53.825) |
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Open Polar |
collection |
Defense Technical Information Center: DTIC Technical Reports database |
op_collection_id |
ftdtic |
language |
English |
topic |
Physical and Dynamic Oceanography Geology Geochemistry and Mineralogy *MARINE GEOLOGY *NORTH ATLANTIC OCEAN *OCEAN BOTTOM TOPOGRAPHY *DEEP OCEANS OCEAN CURRENTS THESES BATHYMETRY OCEAN BOTTOM SAMPLING ECHO RANGING THERMOCLINES OCEAN RIDGES OCEANOGRAPHIC EQUIPMENT OCEANOGRAPHIC SHIPS UNDERWATER PHOTOGRAPHY TRIESTE 2 vessel WUNR083004 |
spellingShingle |
Physical and Dynamic Oceanography Geology Geochemistry and Mineralogy *MARINE GEOLOGY *NORTH ATLANTIC OCEAN *OCEAN BOTTOM TOPOGRAPHY *DEEP OCEANS OCEAN CURRENTS THESES BATHYMETRY OCEAN BOTTOM SAMPLING ECHO RANGING THERMOCLINES OCEAN RIDGES OCEANOGRAPHIC EQUIPMENT OCEANOGRAPHIC SHIPS UNDERWATER PHOTOGRAPHY TRIESTE 2 vessel WUNR083004 Flood,Roger Donald Studies of Deep-Sea Sedimentary Microtopography in the North Atlantic Ocean. |
topic_facet |
Physical and Dynamic Oceanography Geology Geochemistry and Mineralogy *MARINE GEOLOGY *NORTH ATLANTIC OCEAN *OCEAN BOTTOM TOPOGRAPHY *DEEP OCEANS OCEAN CURRENTS THESES BATHYMETRY OCEAN BOTTOM SAMPLING ECHO RANGING THERMOCLINES OCEAN RIDGES OCEANOGRAPHIC EQUIPMENT OCEANOGRAPHIC SHIPS UNDERWATER PHOTOGRAPHY TRIESTE 2 vessel WUNR083004 |
description |
Many of the small-scale topographic features (dimensions of centimeters to kilometers) found on the Blake-Bahama Outer Ridge (western North Atlantic, water depth greater than 4000 m) and in the Rockall Trough (northeastern North Atlantic, water depth greater than 2000 m) have been formed as bed forms of deep currents. These bed forms, all developed in cohesive sediments, include current ripples (spacings of tens of centimeters, formed transverse to the flow), longitudinal triangular ripples (spacings of meters, formed in sandy muds and parallel to the flow), furrows (spacings of tens to 100's of meters, formed parallel to the flow and presently either erosional or depositional), and regular sediment waves (spacings of a few kilometers, now found oblique to the flow and migrating either upstream or downstream). The local distribution of any given bed form is influenced by the presence of larger features. Bed forms are often found in zones which strike parallel to the regional contours. Doctoral thesis. |
author2 |
WOODS HOLE OCEANOGRAPHIC INSTITUTION MASS |
format |
Text |
author |
Flood,Roger Donald |
author_facet |
Flood,Roger Donald |
author_sort |
Flood,Roger Donald |
title |
Studies of Deep-Sea Sedimentary Microtopography in the North Atlantic Ocean. |
title_short |
Studies of Deep-Sea Sedimentary Microtopography in the North Atlantic Ocean. |
title_full |
Studies of Deep-Sea Sedimentary Microtopography in the North Atlantic Ocean. |
title_fullStr |
Studies of Deep-Sea Sedimentary Microtopography in the North Atlantic Ocean. |
title_full_unstemmed |
Studies of Deep-Sea Sedimentary Microtopography in the North Atlantic Ocean. |
title_sort |
studies of deep-sea sedimentary microtopography in the north atlantic ocean. |
publishDate |
1978 |
url |
http://www.dtic.mil/docs/citations/ADA061931 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA061931 |
long_lat |
ENVELOPE(-15.036,-15.036,53.825,53.825) |
geographic |
Rockall Trough |
geographic_facet |
Rockall Trough |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
DTIC AND NTIS |
op_relation |
http://www.dtic.mil/docs/citations/ADA061931 |
op_rights |
APPROVED FOR PUBLIC RELEASE |
_version_ |
1766119656021557248 |