Early development of carbonate platform (Xisha Islands) in the northern South China Sea

2021 ◽  
pp. 106629
Author(s):  
Feng Wu ◽  
Xinong Xie ◽  
Youhua Zhu ◽  
Giovanni Coletti ◽  
Christian Betzler ◽  
...  
Keyword(s):  
South China Sea ◽  
Early Development ◽  
South China ◽  
Carbonate Platform ◽  
Northern South China Sea ◽  
Xisha Islands ◽  
China Sea

GEOPHYSICAL RESPONSE OF THE LIUHUA CARBONATE PLATFORM IN NORTHERN SOUTH CHINA SEA

2011 ◽  
Vol 31 (4) ◽  
pp. 105-112
Author(s):  
Guangxu ZHANG ◽  
Shiguo WU ◽  
Weilin ZHU ◽  
Hesheng SHI ◽  
Duanxin CHEN
Keyword(s):  
South China Sea ◽  
South China ◽  
Carbonate Platform ◽  
Northern South China Sea ◽  
China Sea

Tectonically induced, deep-burial paleo-collapses in the Zhujiang Miocene carbonate platform in the northern South China Sea

2015 ◽  
Vol 364 ◽  
pp. 43-52 ◽  
Author(s):  
Duanxin Chen ◽  
Shiguo Wu ◽  
David Völker ◽  
Dongdong Dong ◽  
Hesheng Shi ◽  
...  
Keyword(s):  
South China Sea ◽  
South China ◽  
Carbonate Platform ◽  
Northern South China Sea ◽  
China Sea ◽  
Deep Burial

Seismic expressions of the Yongle Atoll and the Sansha Yongle Blue Hole in the Xisha Islands, Northwestern South China Sea

2020 ◽  
Author(s):  
Jinwei Gao ◽  
Hanyu Zhang ◽  
Shiguo Wu ◽  
Benjun Ma ◽  
Wanli Chen ◽  
...  
Keyword(s):  
South China Sea ◽  
South China ◽  
Seismic Data ◽  
Carbonate Platform ◽  
Seismic Profiles ◽  
Xisha Islands ◽  
China Sea ◽  
Blue Hole ◽  
Intrusive Activity ◽  
Seismic Reflections

<p>Sansha Yongle Blue Hole is an oceanic blue hole and is located at the northeastern edge of the Yongle Atoll, in the Xisha Islands of the northwestern South China Sea. The 301.19 m deep makes it to be the deepest known blue hole in the world. Despite the 3-D morphology, hydrochemical properties and chemocline of the blue hole have been comprehensive investigated, its karst formation process is still enigmatic. This study presented new acquired multi-channel seismic data across the Yongle Atoll and seismic data across the Sansha Yongle Blue Hole to describe the seismic reflection characteristics of the carbonate platform and the blue hole in extensive detail. Combined with the scientific wells drilled on the atoll, our results show that carbonate sequences including Lower Miocene, Middle Miocene, Upper Miocene, Pliocene and Quaternary developed on the platform. The magmatically intrusive activity and related magmatic hydrothermal fluid flows have been very active since 5.5 Ma around/on the Yongle Atoll, and may remain active on both slopes and the carbonate platform of the Yongle Atoll at present. Seismic profiles also show that the blue hole is characterized by chaotic seismic reflections which are easily distinguished from surrounding carbonate rocks with sub-parallel, continuous, low to medium amplitude, and low to medium seismic reflections. It seems that the depth of the blue hole is deeper than that measured according to the seismic images. The results of δ<sup>18</sup>O from scientific wells show that the phreatic extent in the Xisha Islands is from 14.75 – 38.89 m to 152.06 – 183.29 m. Therefore, different from other classic karstological blue holes formed by the phreatic dissolution processes, a hydrothermal – phreatic model with magmatic hydrothermal pipes and collapse of deep seated phreatic dissolution voids was proposed to describe the formation of the Sansha Yongle Blue Hole.</p>

Sea-level changes and carbonate platform evolution of the Xisha Islands (South China Sea) since the Early Miocene

2017 ◽  
Vol 485 ◽  
pp. 504-516 ◽  
Author(s):  
Lei Shao ◽  
Yuchi Cui ◽  
Peijun Qiao ◽  
Daojun Zhang ◽  
Xinyu Liu ◽  
...  
Keyword(s):  
South China Sea ◽  
Sea Level ◽  
South China ◽  
Carbonate Platform ◽  
Early Miocene ◽  
Sea Level Changes ◽  
Xisha Islands ◽  
China Sea ◽  
Platform Evolution

DEEPWATER SEDIMENT TRANSPORTATION MODELS FOR NORTHERN SOUTH CHINA SEA SLOPES

2010 ◽  
Vol 30 (4) ◽  
pp. 39-48 ◽  
Author(s):  
Shengqiang YUAN ◽  
Shiguo WU ◽  
Zongju ZHAO ◽  
Fangjian XU
Keyword(s):  
South China Sea ◽  
South China ◽  
Northern South China Sea ◽  
China Sea ◽  
Sediment Transportation ◽  
Transportation Models
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