Late Holocene sediment accumulation on the northern California shelf: Oceanic, fluvial, and anthropogenic influences

2007 ◽  
Vol 119 (9-10) ◽  
pp. 1120-1134 ◽  
Author(s):  
C. K. Sommerfield ◽  
R. A. Wheatcroft
Keyword(s):  
Late Holocene ◽  
Sediment Accumulation ◽  
Anthropogenic Influences ◽  
Northern California ◽  
Holocene Sediment

LATE HOLOCENE SEDIMENT CHARACTERISTICS AND SEDIMENT ACCUMULATION IN THE MARSH OF GRAVGAZ:

Sagalassos VI ◽  
2008 ◽  
pp. 189-208 ◽  
Author(s):  
Simon SIX ◽  
Etienne PAULISSEN ◽  
Thijs VAN THUYNE ◽  
Joachim LAMBRECHTS ◽  
Marleen VERMOERE ◽  
...  
Keyword(s):  
Late Holocene ◽  
Sediment Accumulation ◽  
Sediment Characteristics ◽  
Holocene Sediment

The benthic geochemical record of late Holocene carbon flux in the northeast Atlantic

1995 ◽  
Vol 348 (1324) ◽  
pp. 221-227 ◽  
Keyword(s):  
Organic Carbon ◽  
Carbon Flux ◽  
Late Holocene ◽  
Sediment Accumulation ◽  
Euphotic Zone ◽  
Natural Uranium ◽  
Water Interface ◽  
Northeast Atlantic ◽  
Organic Carbon Flux ◽  
Organic Carbon Burial

This study centered around a transect of high-resolution (multi) cores from the 20° W meridian, 60-18° N in the northeast Atlantic. It spans a range of primary productivity zones, and was used to quantify and examine the vertical flux of organic carbon from the euphotic zone (50 m deep) to the sediment—water interface, through the sediment mixed layer, to burial in late Holocene sediment. The disequilibrium between members of the natural uranium decay series ( 226 Ra, 210 Pb and 210 Po) - which track the biogenic flux through scavenging of the particle-reactive nuclides —was employed. Together with experimentally and observationally derived factors, these data were used to convert nuclide flux to organic carbon flux resulting in an estimate of the water column flux of organic carbon. At the sediment-water interface micro-oxygen electrodes were used to quantify the consumption of organic carbon by aerobic respiration. It was noted that the estimated organic carbon flux is strongly dependent on the intensity of bioturbation. The late Holocene organic carbon burial flux was calculated for selected cores from measured organic carbon profiles and sediment accumulation rates over approximately the last 10000 years. This combined approach reveals a strong spatial and temporal signal in the flux of organic carbon through the deep sea in the northeast Atlantic, and provides additional insight into the fate of carbon in this area of the ocean.

Climate and hydrologic controls on late Holocene sediment supply to an Amazon floodplain lake

2020 ◽  
Vol 64 (4) ◽  
pp. 389-403
Author(s):  
Luciane Silva Moreira ◽  
Patricia Moreira-Turcq ◽  
Renato Campello Cordeiro ◽  
Bruno Turcq ◽  
Keila Cristina Aniceto ◽  
...  
Keyword(s):  
Late Holocene ◽  
Sediment Supply ◽  
Floodplain Lake ◽  
Amazon Floodplain ◽  
Holocene Sediment ◽  
Hydrologic Controls

CHARACTERIZING HOLOCENE SEDIMENT ACCUMULATION AND HUMAN IMPACTS IN AN UPLAND KETTLE POND IN EASTERN CONNECTICUT

2018 ◽  
Author(s):  
William B. Ouimet ◽  
◽  
Caitlin T. McManimon ◽  
Heather Scofield ◽  
Billy Stansfield ◽  
...  
Keyword(s):  
Human Impacts ◽  
Sediment Accumulation ◽  
Holocene Sediment
Sign in / Sign up

Export Citation Format

Share Document