Elementary study of physical properties on surface sediments in Nansha Islands sea area

1997 ◽  
Vol 40 (5) ◽  
pp. 547-552 ◽  
Author(s):  
Bo Lu
Keyword(s):  
Physical Properties ◽  
Surface Sediments ◽  
Nansha Islands ◽  
Sea Area

Sedimentary records of black carbon in the sea area of the Nansha Islands since the last glaciation

2000 ◽  
Vol 45 (17) ◽  
pp. 1594-1598 ◽  
Author(s):  
Guodong Jia ◽  
Ping’an Peng ◽  
Guoying Sheng ◽  
Jiamo Fu
Keyword(s):  
Black Carbon ◽  
Nansha Islands ◽  
Sedimentary Records ◽  
Last Glaciation ◽  
Sea Area

scholarly journals Inversion of the physical properties of seafloor surface sediments based on AUV sub-bottom profile data in the northern slope of the South China Sea

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Qingjie Zhou ◽  
Xishuang Li ◽  
Bigui Huang ◽  
Lejun Liu ◽  
Shan Gao ◽  
...  
Keyword(s):  
Grain Size ◽  
Reflection Coefficient ◽  
South China Sea ◽  
Physical Properties ◽  
South China ◽  
Surface Sediments ◽  
Dominant Frequency ◽  
The South China Sea ◽  
Northern Slope ◽  
Mean Grain Size

AbstractBased on the seafloor reflection coefficient obtained from autonomous underwater vehicle (AUV) sub-bottom profile survey data of the northern slope of the South China Sea, combined with the sample test data of seafloor surface sediments, we use the Biot–Stoll model to establish the equations relating the seafloor reflection coefficient to the porosity, density, and mean grain size of the sediments at the dominant frequency of 5 kHz (the dominant frequency of the AUV sub-bottom profiler). The physical property parameters such as the porosity, density, and mean grain size of seafloor surface sediments are further inverted. Comparison of inversion results with measured results shows that the overall deviation ratios of the inverted mean grain size, porosity, and density of the surface sediments are in the ranges of − 13.56 to 14.44%, − 6.15 to 8.06%, and − 10.85 to 0.46%, respectively. Among them, the mean grain size directly reflects the size of seafloor sediment particles, and the particles are finer in deeper water. Overall, the inversion results are basically consistent with the measured values and thus can well reflect the variation characteristics of the physical properties of seafloor surface sediments.

Physical Properties of Near-Surface Sediments at Southern Hydrate Ridge: Results from ODP Leg 204

2006 ◽  
Author(s):  
M. Riedel ◽  
P. Long ◽  
C.S. Liu ◽  
P. Schultheiss ◽  
T. Collett ◽  
...  
Keyword(s):  
Physical Properties ◽  
Surface Sediments ◽  
Near Surface ◽  
Hydrate Ridge

Analysis and distribution features of benzothiophene in sediments of Nansha Islands sea area

1997 ◽  
Vol 15 (3) ◽  
pp. 199-204 ◽  
Author(s):  
Yang Gui-peng ◽  
Zhang Zheng-bin ◽  
Zhang Jian-wu ◽  
Liu Lian-sheng
Keyword(s):  
Nansha Islands ◽  
Distribution Features ◽  
Sea Area
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