Ridge jump reorientation of the South China Sea revealed by high‐resolution magnetic data

Terra Nova ◽  
2021 ◽  
Author(s):  
Qingsheng Guan ◽  
Tao Zhang ◽  
Brian Taylor ◽  
Jinyao Gao ◽  
Jiabiao Li
Keyword(s):  
High Resolution ◽  
South China Sea ◽  
South China ◽  
The South China Sea ◽  
Magnetic Data ◽  
The South ◽  
China Sea

Seawater Temperature Seasonality in the South China Sea During the Late Holocene Derived From High-Resolution Sr/Ca Ratios of Tridacna Gigas

2015 ◽  
Vol 83 (2) ◽  
pp. 298-306 ◽  
Author(s):  
Hong Yan ◽  
Liguang Sun ◽  
Da Shao ◽  
Yuhong Wang
Keyword(s):  
High Resolution ◽  
South China Sea ◽  
South China ◽  
Late Holocene ◽  
Seawater Temperature ◽  
The South China Sea ◽  
The South ◽  
China Sea ◽  
Tridacna Gigas ◽  
Temperature Seasonality

Temperature seasonality, the difference between summer and winter temperature, has significant influences on global terrestrial and marine ecosystems. However, most of proxy-based climate records are of limited temporal resolution and thus insufficient to quantify the past temperature seasonality. In this study, high-resolution Sr/Ca ratios of modern (live-caught) and fossil (dead-collected) Tridacna gigas shells from the South China Sea (SCS) were used to reconstruct the seawater temperature seasonality during the late Holocene. The averaged seawater temperature seasonality around 2165 ± 75 BC (4.46 ± 1.41°C, derived from the data of 18 yr) were similar to the seasonality of recent decade (4.41 ± 0.82°C during AD 1994–2005), but the temperature seasonality around AD 50 ± 40 (3.69 ± 1.37°C, derived from the data of 48 yr) and AD 990 ± 40 (3.64 ± 0.87°C, derived from the data of 11 yr) was significantly lower than that during AD 1994–2005. The reduced seasonality around AD 990 ± 40 was attributable to the unusually warm winter during the medieval times, probably caused by the weakening of East Asian Winter Monsoon. Our study highlighted the potential of T. gigas shells in providing high-resolution seasonality climate information during the late Holocene.

Jump event of mid-ocean ridge during the eastern subbasin evolution of the South China Sea

2016 ◽  
Vol 4 (3) ◽  
pp. SP67-SP77 ◽  
Author(s):  
Yan Qiu ◽  
Yingmin Wang ◽  
Wenkai Huang ◽  
Weiguo Li ◽  
Haiteng Zhuo ◽  
...  
Keyword(s):  
South China Sea ◽  
South China ◽  
Seafloor Spreading ◽  
The South China Sea ◽  
Magnetic Data ◽  
The South ◽  
Tectonic Event ◽  
China Sea ◽  
Mid Ocean Ridge ◽  
Ocean Ridge

The South China Sea is one of the largest marginal seas in the Western Pacific region, and it has been widely accepted that the evolution of the basin and the development of its oceanic crusts is closely linked to seafloor spreading. A great controversy, however, is around whether or not there was a jump of mid-ocean ridges during seafloor spreading, particularly in the eastern South China Sea subbasin. A tectonostratigraphic interpretation using high-resolution seismic data demonstrated that: (1) a southward jump event of the mid-ocean ridge took place in the eastern subbasin during the seafloor spreading; (2) the orientation of the mid-ocean ridge had dramatically changed after the event resulting in that the abandoned mid-ocean ridge is along an east–west direction, whereas the younger one is generally east–northeast/west–southwest oriented; (3) the corresponding surface caused by the jump tectonic event and the pre-event sequence can be traced throughout the earlier formed oceanic crust; and (4) paleo-magnetic data showed that the event occurred at approximately 25–23.8 Ma. The results of this study could be used to better understand the evolution and filling of the South China Sea and other associated marginal basins.

scholarly journals Holocene ENSO variability in the South China Sea recorded by high-resolution oxygen isotope records from the shells of Tridacna spp.

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Da Shao ◽  
Yanjun Mei ◽  
Zhongkang Yang ◽  
Yuhong Wang ◽  
Wenqing Yang ◽  
...  
Keyword(s):  
High Resolution ◽  
South China Sea ◽  
Oxygen Isotope ◽  
South China ◽  
The South China Sea ◽  
The South ◽  
Enso Variability ◽  
China Sea

scholarly journals On the high resolution regional weather forecast model (HRM) and forecasting tropical cyclone motion over the south china sea

2005 ◽  
Vol 27 (4) ◽  
pp. 193-203
Author(s):  
Le Duc ◽  
Le Cong Thang ◽  
Kieu Thi Xin
Keyword(s):  
High Resolution ◽  
South China Sea ◽  
South China ◽  
Weather Forecast ◽  
Forecast Model ◽  
The South China Sea ◽  
The South ◽  
China Sea ◽  
Weather Forecast Model ◽  
Slow Moving

Chan (1995) [2] has found that, only 70% in 60 cases of the tropical cyclone (TC) movement test (TMT-90) developed from steering flows. The 30% remain of cases have to be explained by nonbarotropic processes. We are of the opinion that all weak, slow-moving and unexpected changing TCs over the South China Sea are in this 30% set. The nonlinear interaction between barotropic and nonbarotropic processes has affected on motion and structure of such TCs. In this paper, we use the high resolution weather forecast model (HRM), which is able to simulate meso-scale phenomena in limited regions, to predict motion of TCs in the South China Sea in 2002-2004, including two typical weak, slow-moving and unexpected changing TCs Mekhala and Nepartak. We have chosen two forecast domains with different areas and resolutions. The results show that with the smaller domain, appropriate buffer and higher resolution HRM can predict better motion of TCs operating in the South China Sea.

Syn-rift magmatic characteristics and evolution at a sediment-rich margin: Insights from high-resolution seismic data from the South China Sea

2021 ◽  
Vol 91 ◽  
pp. 81-96
Author(s):  
Cuimei Zhang ◽  
Zhen Sun ◽  
Gianreto Manatschal ◽  
Xiong Pang ◽  
Ning Qiu ◽  
...  
Keyword(s):  
High Resolution ◽  
South China Sea ◽  
South China ◽  
Seismic Data ◽  
The South China Sea ◽  
The South ◽  
China Sea
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