TY  - JOUR
  - Huvenne, VAI,Masson, DG,Wheeler, AJ
  - 2009
  - June
  - International Journal of Earth Sciences
  - Sediment dynamics of a sandy contourite: the sedimentary context of the Darwin cold-water coral mounds, Northern Rockall Trough
  - Validated
  - ()
  - Cold-water corals Sandy contourites Sediment transport Continental margin Northern Rockall Trough DEEP-WATER ATLANTIC MARGIN SLOPE CURRENT NE ATLANTIC SEA MARKS ENVIRONMENTS CIRCULATION THRESHOLD SHETLAND
  - 98
  - 865
  - 884
  - Grainsize, mineralogy and current-meter data from the Northern Rockall Trough are presented in order to characterise the sandy contourite that forms the sedimentary environment of the Darwin cold-water coral mounds, and to investigate the impact of this environment on the mound build-up. Large clusters of small cold-water coral mounds, 75 m across and 5 m high, have been found southwest of the Wyville Thomson Ridge, at 900-1,100 m water depth. Their present-day sedimentary environment consists of a subtly sorted sandy contourite, elongated NE-SW, roughly parallel to the contours. Critical erosional and depositional current speeds were calculated, and trends in both the quartz/feldspar and foraminifera fractions of the sands show a bi-directional fining from bedload/erosion-dominated sands in the NE to suspension/deposition-dominated sediments in the SW and towards the S (downslope). This is caused by a gradual reduction in governing current speed, linked to a reduction in slope gradient, and by the increasing distance from the current core in the downslope direction. No specific characteristics were found distinguishing the mound sediments from the surrounding sands: they fit in the overall spatial pattern. Some mound cores show hints of a fining-upward trend. Overall the mound build-up process is interpreted as a result of sediment baffling.
  - DOI 10.1007/s00531-008-0312-5
DA  - 2009/06
ER  - 

@article{V43335131,
   = {Huvenne,  VAI and Masson,  DG and Wheeler,  AJ },
   = {2009},
   = {June},
   = {International Journal of Earth Sciences},
   = {Sediment dynamics of a sandy contourite: the sedimentary context of the Darwin cold-water coral mounds, Northern Rockall Trough},
   = {Validated},
   = {()},
   = {Cold-water corals Sandy contourites Sediment transport Continental margin Northern Rockall Trough DEEP-WATER ATLANTIC MARGIN SLOPE CURRENT NE ATLANTIC SEA MARKS ENVIRONMENTS CIRCULATION THRESHOLD SHETLAND},
   = {98},
  pages = {865--884},
   = {{Grainsize, mineralogy and current-meter data from the Northern Rockall Trough are presented in order to characterise the sandy contourite that forms the sedimentary environment of the Darwin cold-water coral mounds, and to investigate the impact of this environment on the mound build-up. Large clusters of small cold-water coral mounds, 75 m across and 5 m high, have been found southwest of the Wyville Thomson Ridge, at 900-1,100 m water depth. Their present-day sedimentary environment consists of a subtly sorted sandy contourite, elongated NE-SW, roughly parallel to the contours. Critical erosional and depositional current speeds were calculated, and trends in both the quartz/feldspar and foraminifera fractions of the sands show a bi-directional fining from bedload/erosion-dominated sands in the NE to suspension/deposition-dominated sediments in the SW and towards the S (downslope). This is caused by a gradual reduction in governing current speed, linked to a reduction in slope gradient, and by the increasing distance from the current core in the downslope direction. No specific characteristics were found distinguishing the mound sediments from the surrounding sands: they fit in the overall spatial pattern. Some mound cores show hints of a fining-upward trend. Overall the mound build-up process is interpreted as a result of sediment baffling.}},
   = {DOI 10.1007/s00531-008-0312-5},
  source = {IRIS}
}