Using network to enhance the insights on correlation and pollution assessment of co-occurring metals in marine sediments, the East China Sea

2018 ◽  
Vol 25 (12) ◽  
pp. 11913-11923 ◽  
Author(s):  
Lili Liu ◽  
Yupeng Wang ◽  
Sen Lin ◽  
Hong Li ◽  
Xin Chen ◽  
...  
Keyword(s):  
East China Sea ◽  
Marine Sediments ◽  
Pollution Assessment ◽  
East China ◽  
The East China Sea ◽  
China Sea

Seismic imaging of S-wave structures of shallow sediments in the East China Sea using OBN multicomponent Scholte-wave data

Geophysics ◽  
2020 ◽  
Vol 85 (6) ◽  
pp. EN87-EN104
Author(s):  
Yuan Wang ◽  
Zhiwei Li ◽  
Jianhua Geng ◽  
Qingyu You ◽  
Tianyao Hao ◽  
...  
Keyword(s):  
East China Sea ◽  
Marine Sediments ◽  
Seismic Exploration ◽  
East China ◽  
The East China Sea ◽  
S Wave ◽  
Shallow Marine ◽  
China Sea ◽  
Scholte Wave ◽  
Shallow Marine Sediments

The shear-wave (S-wave) structures of shallow marine sediments are important for offshore geotechnical studies, deep crustal S-wave imaging, multicomponent seismic exploration, and underwater acoustics studies. We have applied the multicomponent Scholte-wave analysis technique to an active-source shallow marine seismic profile in the East China Sea. Scholte waves have been excited by shots from a 5450 inch3 air-gun array and their recordings have been conducted at the seafloor using ocean bottom nodes (OBNs). First, we extract the common-receiver gathers (CRGs) and correct for the time drift simultaneously using a forward and inverse fast Fourier transform resampling algorithm. Three CRGs of seismic sensors are used for Scholte-wave analysis. Raw sensor CRGs are rotated to the inline, crossline, and vertical coordinate system. The rotated tilt and roll angle are directed using the inner electric compass log value, and the shot inline azimuth is estimated using the particle motion method. Then, the velocity spectra are calculated from the inline and vertical components using the phase-shift method. Higher Scholte-wave modes dominate on the horizontal components, whereas the stronger fundamental mode dominates on the vertical components. The multicomponent velocity spectrum stacking method is adopted to produce the final dispersion energy image. Up to four modes of dispersion curves are retrieved within the 1.1–4.3 Hz frequency band. The multimode dispersion curve inversion is constructed for imaging the shallow sediments. The results suggest a low [Formula: see text] of 180–650 m/s and few lateral variations within the top 0.5 km of shallow marine sediments in the East China Sea. This model can provide an important reference for offshore geotechnical investigations, especially for OBN multicomponent seismic exploration data processing. The use of OBNs has high feasibility in [Formula: see text] imaging for shallow marine sediments when combined with the Scholte-wave dispersion-curve inversion.

scholarly journals Speciation of heavy metals in marine sediments from the East China Sea by ICP-MS with sequential extraction

2004 ◽  
Vol 30 (6) ◽  
pp. 769-783 ◽  
Author(s):  
Chun-gang Yuan ◽  
Jian-bo Shi ◽  
Bin He ◽  
Jing-fu Liu ◽  
Li-na Liang ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Sequential Extraction ◽  
East China Sea ◽  
Marine Sediments ◽  
East China ◽  
The East China Sea ◽  
China Sea ◽  
Icp Ms

Distribution of Short Chain Chlorinated Paraffins in Marine Sediments of the East China Sea: Influencing Factors, Transport and Implications

2012 ◽  
Vol 46 (18) ◽  
pp. 9898-9906 ◽  
Author(s):  
Lixi Zeng ◽  
Zongshan Zhao ◽  
Huijuan Li ◽  
Thanh Wang ◽  
Qian Liu ◽  
...  
Keyword(s):  
Influencing Factors ◽  
East China Sea ◽  
Marine Sediments ◽  
Short Chain ◽  
East China ◽  
The East China Sea ◽  
China Sea ◽  
Chlorinated Paraffins

A novel thermostable serine protease from a metagenomic library derived from marine sediments in the East China Sea

2020 ◽  
Vol 104 (21) ◽  
pp. 9229-9238
Author(s):  
Jianan Sun ◽  
Ping Li ◽  
Zhen Liu ◽  
Wencan Huang ◽  
Xiangzhao Mao
Keyword(s):  
Serine Protease ◽  
East China Sea ◽  
Marine Sediments ◽  
Metagenomic Library ◽  
East China ◽  
The East China Sea ◽  
China Sea

Causes of marine heatwaves in the East China Sea and the South Yellow Sea in three consecutive summers during 2016-2018

2020 ◽  
Author(s):  
Guan-dong Gao ◽  
Maxime Marin ◽  
Ming Feng ◽  
Baoshu Yin ◽  
Dezhou Yang ◽  
...  
Keyword(s):  
East China Sea ◽  
Yellow Sea ◽  
East China ◽  
South Yellow Sea ◽  
The East China Sea ◽  
The South ◽  
China Sea ◽  
The South Yellow Sea

The East China Sea Seafloor Observatory and its upgraded project

2011 ◽  
Author(s):  
Huiping Xu ◽  
Changwei Xu ◽  
Rufu Qin ◽  
Yang Yu ◽  
Shangqin Luo ◽  
...  
Keyword(s):  
East China Sea ◽  
East China ◽  
The East China Sea ◽  
China Sea ◽  
Seafloor Observatory

THE COLOR REFLECTANCE FEATURES OF THE SEDIMENTS IN MUD AREA ON THE INNER SHELF OF THE EAST CHINA SEA AND ITS PALEOCLIMATIC IMPLICATIONS FOR RECENT 2 ka

2013 ◽  
Vol 32 (6) ◽  
pp. 149-158 ◽  
Author(s):  
Taoyu XU ◽  
Xuefa SHI ◽  
Shengfa LIU ◽  
Shuqing QIAO ◽  
Gang YANG ◽  
...  
Keyword(s):  
East China Sea ◽  
East China ◽  
The East China Sea ◽  
Inner Shelf ◽  
China Sea ◽  
Mud Area
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