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| 1 | Paleoenvironmental records from the northern South China Sea since the Last Glacial Maximum显示文摘Core ZHS-176 contains the paleoenvironmental records from the northern South China Sea (NSCS) since the Last Glacial Maximum (LGM). A coupled approach based on clay mineral assemblages, planktonic foraminiferal oxygen and carbon isotopes, and calcium carbonate content is used to trace the sources of the fine-grained sediment and to investigate the paleoenviornmental evolution in this area. Clay mineral assemblages are dominated by illite (average about 39%) and chlorite (about 27%), which comes mainly from Taiwan and the East China Sea. Kaolinite, which accounts for about 13%, comes mainly from the Zhujiang (Pearl) River, and Luzon Island is the main source for smectite (about 21%). The planktonic foraminiferal oxygen isotopic oscillations during the last glacial period are coeval with climate variations recorded in the Greenland ice core and Western Pacific sediment. These variations include the LGM, Heinrich event 1, Bφlling-Allerφd (B/A), and Younger Dryas. For the Holocene, three periods of strong precipitation (S1-S3) and three periods of weak precipitation (W1-W3) are identified. The oxygen isotopic record exhibits corre-lation with climate records from distant regions, including the high-latitude Northern Hemisphere, providing evidence for global tele-connection among regional climate. A brief, negative planktonic foraminiferal carbon isotopic excursion during B/A reflects increased methane released from marine gas hydrate due to the rapid warming of the water. By comparing calcium carbonate content curves of the core ZHS-176 with these of other five boreholes lying above the lysocline, a remarkable low calcium carbonate event is found during the early Holocene in NSCS. | GE Qian CHU Fengyou XUE Zuo LIU J Paul DU Yuansheng FANG Yinxia | 2010 | Acta Oceanologica Sinica2010，29，3： | 13 |
| 2 | The formation and tectonic evolution of Philippine Sea Plate and KPR显示文摘The Philippine Sea Plate has an extremely special tectonic background. As an oceanic plate,it is almost entirely surrounded by subduction zones with complex internal tectonic features. On the basis of enormous published literature,this paper offers a comprehensive overview of the tectonic and evolution history of the Philippine Basin and the Kyushu-Palau Ridge(KPR) in the Philippine Sea Plate,and discusses the geological features of KPR. Referring to relevant definitions of various 'ridges' stipulated in United Nations Convention on the Law of the Sea,so the KPR is believed to be a remnant arc formed during the opening of the Parece Vela and Shikoku Basins in the Philippine Sea Plate. It is a submarine ridge on oceanic plate rather than a submarine elevation. And thus,it is not a natural component of the Japan continental margin. | FANG Yinxia LI Jiabiao LI Mingbi DING Weiwei ZHANG Jie | 2011 | Acta Oceanologica Sinica2011，30，4： | 8 |
| 3 | Faulting, magmatism and crustal oceanization of the Okinawa Trough显示文摘The paper focuses on the characteristics of faulting and magmatism of the Okinawa Trough and the relation between them. En-echelon grabens are ranked oblique to the continental shelf edge uplift, and the Longwang uplift, the rifting block ridge in the northern segment and the 'Mianhua uplift' in the southern segment have possibly preserved characteristics of volcanism and magmatism occurring with those rifting phases. The clockwise rotation of the southern Ryukyu Islands, driven by collision between Luzon and Taiwan, has played a key role in the crustal oceanization, enhancing the crustal extension of the southern segment and inducing volcanic magmatism in those grabens, among which the Yaeyama graben is a typical example of the presence of oceanic crust. Faulting and magmatism were mainly migrating towards the island arc asymmetrically. The crustal oceanization of the Okinawa Trough is diffcultly interpreted by the linear magnetic anomaly model, which is fit for the symmetric spreading of the mid-oceanic ridges. | GAO Jinyao ZHANG Tao FANG Yinxia YANG Chuanguo MEI Sai | 2009 | Acta Oceanologica Sinica2009，28，3： | 5 |
| 4 | Cenozoic tectonic subsidence in the Southern Continental Margin, South China Sea显示文摘 | Penggao FANG Weiwei DING Yinxia FANG Zhongxian ZHAO Zhibing FENG | 2017 | Frontiers of Earth Science2017，11，2： | 1 |
| 5 | Effect of natural prolongation with geological features on maritime delimitation显示文摘The United Nations Convention on the Law of the Sea entitled the coastal States to naturally extend the continental shelf, which has caused more drastic disputes of maritime delimitation. This paper devotes to clarifying the significant concept of natural prolongation through an effect method combing the legal principles and technical analysis. Firstly, the classic samples with respect of the development of geological features are traced. Based on these samples, the classification with a model is proposed in order to affirm the concept's significance under certain geomorphologic situations. Lastly, scientific analysis is used to present two potential prolongation situations and emphasize that all the technical analysis on maritime delimitation should be complied with international law and protect the common interest of all the mankind. | QIU Wenxian JIN Xianglong FANG Yinxia WANG Kui | 2017 | Acta Oceanologica Sinica2017，36，2： | 0 |
| 6 | Methods and procedures to determine the outer limits of the continental shelf beyond 200 nautical miles显示文摘This paper establishes techniques and methods to determine a variety of boundaries associated with 200nautical miles beyond the continental shelf.The methods,based on topography,slope and second-derivative profile integrated analysis,are now able to identify automatically the foot of the continental slope(FOS).By analyzing the sedimentary profile,the points of 1%sediment thickness are recognized.Through the intersection,cut,deletion and mergence calculation of the extrapolated data set of fixed-point series,the method succeeds in generating automatically the extrapolated boundaries,including the FOS+60 M line,the 350 M line,and the 2 500 m+100 M line.In addition,based on the automatic analysis of the topographic profile,it can be applied to determine rapidly the points of maximum water depth.Taking the northern Okinawa Trough(OT)as an example,these methods are used to calculate and examine the boundaries included in the Submission by the People's Republic of China Concerning the Outer Limits of the Continental Shelf beyond 200 Nautical miles in Part of the East China Sea(ECS);the boundaries thus derived have a solid scientific and rational basis. | WU Ziyin LI Jiabiao JIN Xianglong FANG Yinxia SHANG Jihong LI Shoujun | 2013 | Acta Oceanologica Sinica2013，32，12： | 0 |
| 7 | The crustal nature of the northern Mozambique Ridge,Southwest Indian Ocean显示文摘The Mozambique Ridge(MOZR)is one of the basement high structures located in the Southwest Indian Ocean,parallel to the Southeast African continental margin.It was formed as a result of the tectono-magmatic evolution of the Gondwana breakup.The origin of the MOZR has been highly debated,with models suggesting either continental or oceanic origin.With new free-air gravity anomaly and multichannel seismic(MCS)reflection data,we present results of 2D density modeling along two seismic profiles acquired by R/V Xiangyanghong 10 at the northern Mozambique Ridge(N-MOZR)between 26°S and 28°S.We observed high free-air gravity anomaly and strong positive magnetic anomaly related to the emplaced seaward dipping reflectors(SDR)and high density lower crustal body(HDLCB),and high Bouguer gravity anomaly associated with the thinning of the continental crust underneath the N-MOZR over a distance of~82 km.This suggests a thinned and intruded continental crust bound by the Mozambique Fracture Zone(MFZ)that is characterized by gravity low and negative magnetic anomaly.This fracture zone marks the continent-ocean boundary(COB)while the N-MOZR is the transform margin high,i.e.,marks the continent-ocean transition(COT)of the Southern Mozambique margin,following the definition of transform margins.We suggest that the N-MOZR was formed by continental extension and subsequent breakup of the MFZ,accompanied by massive volcanism during the southward movement of the Antarctica block.The presence of SDR,HDLCB,and relatively thick oceanic crust indicates the volcanic nature of this transform margin. | Nelta David Matsinhe Yong Tang Chun-Feng Li Jiabiao Li Estevão Stefane Mahanjane He Li Yinxia Fang | 2021 | Acta Oceanologica Sinica2021，40，7： | 0 |
| 8 | Three-dimensional constrained gravity inversion of Moho depth and crustal structural characteristics at Mozambique continental margin显示文摘Mozambique's continental margin in East Africa was formed during the break-off stage of the east and west Gondwana lands. Studying the geological structure and division of continent-ocean boundary(COB) in Mozambique's continental margin is considered of great significance to rebuild Gondwana land and understand its movement mode. Along these lines, in this work, the initial Moho was fit using the known Moho depth from reflection seismic profiles, and a 3D multi-point constrained gravity inversion was carried out. Thus, highaccuracy Moho depth and crustal thickness in the study area were acquired. According to the crustal structure distribution based on the inversion results, the continental crust at the narrowest position of the Mozambique Channel was detected. According to the analysis of the crustal thickness, the Mozambique ridge is generally oceanic crust and the COB of the whole Mozambique continental margin is divided. | Shihao Yang Zhaocai Wu Yinxia Fang Mingju Xu Jialing Zhang Fanlin Yang | 2024 | Acta Oceanologica Sinica2024，43，2： | 0 |
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