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Science china Earth sciences 2024年第1期67卷 222-233页

作者： Ruifang HUANG Weidong sun Xing DING yusheng ZHAO Yibing LI Xiuqi SHANG CAS Key Laboratory of Ocean and Marginal sea Geology South China Sea Institute of OceanologyChinese Academy of SciencesGuangzhou 510301China SUSTech Academy for Advanced Interdisciplinary Studies Southern University of Science and TechnologyShenzhen 518055China Center of Deep sea Research Institute of OceanologyChinese Academy of SciencesQingdao 266071China State Key Laboratory of Isotope Geochemistry Guangzhou Institute of GeochemistryChinese Academy of SciencesGuangzhou 510640China Institue of Geology Chinese Academy of Geological SciencesBeijing 100037China

Hydrothermal alteration of olivine greatly influences geodynamics and the recycling of volatiles(such as water and carbon)in subduction *** is an important component of geological fluids,and its influence on the hydrothermal alteration of olivine remains poorly *** this study,we performed experiments at 3.0–515℃ and 3.0 kbar(1 bar=10^(5)Pa)by reacting well homogenized mixtures of olivine and silica powders with saline solutions(0.5 mol L^(−1)NaCl).Silica greatly influences the reaction pathways,reaction rates,and molecular hydrogen(H_(2))formation during olivine hydrothermal *** experiments at 3.0℃ and 3.0 kbar with mixtures of olivine and 10 wt%silica,olivine was replaced by serpentine and *** proportions of serpentine and talc were determined according to standard curves based on infrared spectroscopy *** 6.5%serpentine and 12%talc were produced after an experimental duration of 7 days,which had no change after a longer period(14 days).Compared to the kinetics in silica-free systems,the rates of olivine hydrothermal alteration in experiments with 10 wt%silica are much *** overall reaction is:4.5Forsterite+5.5SiO_(2),aq+4H_(2)O=Serpentine+*** the addition of more silica(20 wt%and 40 wt%),olivine was transformed into *** rates of reaction were much faster,e.g.,for experiments with olivine and 20 wt%silica,43.of talc was produced after 14 days,which increased to 77%for experiments with 40 wt%silica over the same *** overall reaction is:3.orsterite+5SiO_(2),aq+2H_(2)O=*** experiments at 400–505℃ and 3.0 kbar,the promoting effect of silica on olivine hydrothermal alteration was also observed,which is closely associated with a decrease in Gibbs free energies of olivine hydrothermal *** 3.0℃ and 3.0 kbar,silica decreased H_(2)formed during olivine hydrothermal alteration by around an order of magnitude,resulting in an increase in oxygen *** on measured H_(2),we calibrated ox

关键词： Olivine hydrothermal alteration Silica Serpentinization Hydrogen Serpentine

Cloudiness regime shift during 1946—1992 recorded by coral in the south china sea

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Acta Oceanologica Sinica 2005年第5期24卷 27-34页

作者： GAO Rongzhen sun donghuai WANG Dongxlao YANG Xiaoyi Key Laboratory of Tropical Marine Environmental Dynamics South China Sea Institute of Oceanology Chinese Academy of Sciences Guangzhou 510301 China Laboratory of Marginal sea Geology South China Sea Institute of Oceanology ＆ Guangzhou Institute of Geochemistry Chinese Academy of Sciences Guangzhou 510301 China Qingdao Meteorological Administration Qingdao 266003 China

By extracting and comparing long-term trend components of coral gray value, sea surface temperature, cloudiness, and net heat flux for the period of 1946-1992, the relationships among them are addressed. There exists a prominent regime shift in the cloudiness associated with the corresponding variabilities of sea surface temperature and net heat flux occurred in the mid-1960s, which can be successfully recorded by coral gray value, a climatic proxy. Long-term cloudiness variations in the south{3. sea are completely opposite to the equatorial western Pacific in the past five decades, whereas they share a similar trend to that over Asian monsoon prevailing waters. The fact that the coral gray value is highly correlated to cloudiness provides a unique perspective on utilizing this coral to study cloudiness variations in the pre-instrumental period.

关键词： coral gray value cloudiness regime shift south china sea

Anthropogenic climate change revealed by coral gray values in the south china sea

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chinese Science Bulletin 2010年第13期55卷 1304-1310页

作者： WANG Xin WANG DongXiao GAO RongZhen sun donghuai Key Laboratory of Tropical Marine Environmental Dynamics South China Sea Institute of Oceanology Chinese Academy of Sciences Guangzhou 510301 China Qingdao Meteorological Bureau Qingdao 266003 China

The authors analyze the coral growth band from a colony in the northwestern south china sea. The coral growth band can provide comprehensive environmental information on climate. The trend from the two-century-long annual density of the coral is in a good agreement with that of the global CO2 concentration. Both trends were small prior to the end of the 19th century; after that, trends became clear, more so from the 1960s to the 1990s (the end of the coral record). The overall coral density shows a steady decrease from the late 19th century to the late 20th century. Therefore, the trend from the annual density of the coral reveals the history of the anthropogenic climate change, which is coherent with instrumental and other proxy records. We propose a simple coral-based proxy for reconstructing the anthropogenic climate change over the past two centuries.

关键词：人为气候变化珊瑚南中国海灰度值二氧化碳浓度中国西北部作者分析环境信息

栉孔扇贝体内寄生的病毒的分离纯化及其形态学观察

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海洋学报 2002年第4期24卷 145-148页

作者：李登峰孙敬锋吴信忠中国科学院南海海洋研究所大亚湾海洋生物综合实验研究站广东广州530301

1 引言栉孔扇贝（Chlamys farreri）是我国传统海水养殖贝种，养殖范围主要分布于黄海、渤海沿岸的山东、河北、辽宁等地，但是，近年来因病害发生，造成了巨大的经济损失。扇贝大规模死亡流行病学调查研究已进行多年，流行病学调查、... 详细信息

1 引言栉孔扇贝（Chlamys farreri）是我国传统海水养殖贝种，养殖范围主要分布于黄海、渤海沿岸的山东、河北、辽宁等地，但是，近年来因病害发生，造成了巨大的经济损失。扇贝大规模死亡流行病学调查研究已进行多年，流行病学调查、病理学、病原感染实验及病原分离纯化等研究初步认为类立克次体是扇贝（包括栉孔扇贝和海湾扇贝Argopecten irradians）的病原生物。

关键词：分离形态学栉孔扇贝病毒粒子泛影葡胺密度梯度离心类立克次体纯化

Three-dimensional properties of mesoscale cyclonic warm-core and anticyclonic cold-core eddies in the south china sea

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Acta Oceanologica Sinica 2021年第10期40卷 17-29页

作者： Wenjin sun yu liu Gengxin Chen Wei {3. Xiayan Lin yuping Guan Changming Dong School of Marine sciences Nanjing University of Information Science and TechnologyNanjing 210044China southern Marine Science and Engineering Guangdong Laboratory(Zhuhai) Zhuhai 519080China Marine Science and Technology College Zhejiang Ocean UniversityZhoushan 316022China State Key Laboratory of Tropical Oceanography South China Sea Institute of OceanologyChinese Academy of SciencesGuangzhou 510301China College of Ocean Science and Engineering Shandong University of Science and TechnologyQingdao 266590China College of Earth and Planetary sciences University of Chinese Academy of SciencesBeijing 100049China

In general,a mesoscale cyclonic(anticyclonic)eddy has a colder(warmer)core,and it is considered as a cold(warm)***,recently research found that there are a number of"abnormal"mesoscale cyclonic(anticyclonic)eddies associated with warm(cold)cores in the south china sea(SCS).These"abnormal"eddies pose a challenge to previous works on eddy detection,characteristic analysis,eddy-induced heat and salt transports,and even on mesoscale eddy *** on a 9-year(2000–2008)numerical modelling data,the cyclonic warm-core eddies(CWEs)and anticyclonic cold-core eddies(ACEs)in the SCS are *** study found that the highest incidence area of the"abnormal"eddies is the northwest of Luzon *** terms of the eddy snapshot counting method,8620 CWEs and 9879 ACEs are detected,accounting for 14.6%and 15.8%of the total eddy number,*** size of the"abnormal"eddies is usually smaller than that of the"normal"eddies,with the radius only around 50 *** the generation time aspect,they usually appear within the 0.1–0.3.interval in the normalized eddy *** survival time of CWEs(ACEs)occupies 16.3.(17.1%)of the total eddy *** on two case studies,the intrusion of Kuroshio warm water is considered as a key mechanism for the generation of these"abnormal"eddies near the northeastern SCS.

关键词： mesoscale eddy cyclonic warm-core eddy anticyclonic cold-core eddy Kuroshio intrusion south china sea abnormal mesoscale eddy

The coral grayness in northern south china sea and its description of interdecadal variation of precipitation in south china

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chinese Science Bulletin 2006年第B12期51卷 59-65页

作者： GU Dejun WANG Dongxiao sun donghuai GAO Rongzhen JI Zhongping Laboratory for Tropical Marine Environmental Dynamics South China Sea Institute of Oceanology Chinese Academy of Sciences Guangzhou 510301 China guangzhou institute of Tropical and Marine Meteorology Key Open Laboratory for Tropical Monsoon China Meteorological Administration Guangzhou 510080 China guangzhou Central Meteorological Observatory Guangzhou 510080 China

The interdecadal variation of coral grayness in northern south china sea (SCS) is studied using the annual mean coral grayness in northern SCS from 1789 to 1992 and annual precipitation at {3. from 1908 to 1992 by Singular Spectrum Analysis (SSA), correlation analysis, Mann-Kendall’s abrupt change analysis and composite analysis. The interdecadal variation of south china precipitation as reflected by the series of {3. precipitation rebuilt with the coral grayness is discussed. The results show that the variation of coral grayness in SCS has significant terms of tendency, much-weighted interdecadal variation and weak interannual variation. There was a century-scale abrupt change of coral grayness at the end of the 1880s that changed from positive anomalies to negative anomalies. The global field of SST difference corresponding to the point of abrupt change was negative anomalies over the SCS and neighboring northern Indian Ocean, most of central and western Pacific Ocean and coastal areas of the northern Atlantic Ocean. The large-scale distribution of SST anomalies is concomitant with the century-scale abrupt change of coral grayness in SCS. Negative correlation exists between the coralgrayness in SCS and precipitation in {3. on the interdecadal scale and the interdecadal precipitation in {3. as reflected by the interdecadaldata of SCS coral grayness shows that the interdecadal variation of south china precipitation changes significantly from phase to phase. The current study aims at contributing in the effort of identifying alternative indexes for climate change in south china on the interdecadal scale and beyond.

关键词：中国南海北部海域珊瑚变灰十年变异性华南年度降水气候变化

Sensitivity of Marine Controllable Source Electromagnetic Soundings for Identifying Plume Migration in Offshore CO_(2) Storage

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哈尔滨工程大学学报（英文版） 2024年第3期23卷 656-673页

作者： Ning Qiu Chunwu Pan Yongheng Zhang Bin liu Zhen sun Pengchun Li Key Laboratory of Ocean and Marginal sea Geology South China Sea Institute of OceanologySanya Institute of Ocean Eco-Environmental EngineeringKey Laboratory of Tropical OceanographyChinese Academy of SciencesGuangzhou 511458China southern Marine Science and Engineering Guangdong Laboratory(guangzhou) Guangzhou 511458China University of chinese Academy of sciences Beijing 100049China

Offshore carbon dioxide(CO_(2)) storage is an effective method for reducing greenhouse gas emissions. However, when using traditional seismic wave methods to monitor the migration of sequestration CO_(2) plumes, the characteristics of wave velocity changes tend to become insignificant beyond a certain limit. In contrast, the controllable source electromagnetic method(CSEM) remains highly sensitive to resistivity changes. By simulating different CO_(2) plume migration conditions, we established the relevant models and calculated the corresponding electric field response characteristic curves, allowing us to analyze the CSEM's ability to monitor CO_(2) plumes. We considered potential scenarios for the migration and diffusion of offshore CO_(2) storage, including various burial depths, vertical extension diffusion, lateral extension diffusion,multiple combinations of lateral intervals, and electric field components. We also obtained differences in resistivity inversion imaging obtained by CSEM to evaluate its feasibility in monitoring and to analyze all the electric field(Ex, Ey, and Ez) response characteristics. CSEM has great potential in monitoring CO_(2) plume migration in offshore saltwater reservoirs due to its high sensitivity and accuracy. Furthermore, changes in electromagnetic field response reflect the transport status of CO_(2) plumes, providing an important basis for monitoring and evaluating CO_(2)transport behavior during storage processes.

关键词： Offshore carbon dioxide storage Geophysics Resistivity inversion Monitoring Plume migration Marine controllable source electromagnetic method

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琼东南盆地新生代构造研究现状及展望

海洋地质前沿 2012年第4期28卷 1-9页

作者：刘见宝孙珍刘彦宾赵中贤王章稳中国科学院边缘海地质重点实验室中国科学院南海海洋研究所广州510301 河南省岩石矿物测试中心郑州450003

琼东南盆地属于南海北部陆缘拉张盆地,但是由于其不同的发育历史及红河断裂的影响,具有与东部陆缘盆地不同的构造特征。琼东南盆地和珠江口盆地在地壳结构、基底特征等方面存在差异,但是这种差异的原因还不清楚。新生代沉降速率发生多... 详细信息

琼东南盆地属于南海北部陆缘拉张盆地,但是由于其不同的发育历史及红河断裂的影响,具有与东部陆缘盆地不同的构造特征。琼东南盆地和珠江口盆地在地壳结构、基底特征等方面存在差异,但是这种差异的原因还不清楚。新生代沉降速率发生多期变化,并存在裂后异常沉降、沉降延迟等现象,其形成机制尚需要进一步研究;平面上,构造具有迁移性,但是对不同地质时期的构造迁移方向仍存在不同的看法。盆地沉降中心和沉积中心经历了由裂陷期和裂后早期的较好重合到裂后晚期的逐步分离,直至完全分离的过程。盆地形成与地幔流的关系,以及红河断裂对盆地裂后沉降迁移的影响,也都是需要进一步确定的工作。鉴于以上各方面存在的问题,对琼东南盆地与南沙的共轭关系、盆地异常沉降、红河断裂及内部构造转换带对构造迁移的影响、以及琼东南盆地与珠江口盆地的比较等方面的研究是下一步工作的重点。

关键词：陆坡深水盆地异常沉降动力学琼东南盆地

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南沙群岛中北部重要岛礁鱼类资源调查

水产学报 2003年第4期27卷 315-321页

作者：李永振林昭进陈丕茂孙典荣陈炎陈国宝张旭丰中国水产科学研究院南海水产研究所中国水产科学研究院南海水产研究所广东广州 5103.0

1998年4月和1999年5月,采用手钓、延绳钓和流刺网作业在南沙群岛的渚碧、南薰、东门、美济、赤瓜、永署和华阳等7座珊瑚礁水域进行了2个航次的鱼类资源调查。累计投入的捕捞努力量分别为手钓3.7钩·时、延绳钓4220钩、流刺网19750m,单... 详细信息

1998年4月和1999年5月,采用手钓、延绳钓和流刺网作业在南沙群岛的渚碧、南薰、东门、美济、赤瓜、永署和华阳等7座珊瑚礁水域进行了2个航次的鱼类资源调查。累计投入的捕捞努力量分别为手钓3.7钩·时、延绳钓4220钩、流刺网19750m,单次作业努力量手钓6～18钩·时、延绳钓40～480钩、流刺网40～2400m。捕获鱼类180种,渔获量1860尾1540.4kg,其中手钓102种1225尾196.8kg,延绳钓3.种82尾123..7kg,流刺网70种553.108.9kg。按岛礁平均,渔获率和单位捕捞努力量渔获量（CPUE）手钓为3.1.1尾·（100钩·时）-1、51.9kg（100钩·时）-1,延绳钓为2.6尾·（100钩）-1、3..0kg·（100钩）-1,流刺网为51.4尾·（1000m）-1、7.5kg·（1000m）-1。礁坪区流刺网的渔获率和CPUE为170.3.·（1000m）-1、23.1kg·（1000m）-1,均高于礁缘浅水区和礁缘深海区。捕获的主要经济种类有鲨鱼、裸胸鳝、石斑鱼、笛鲷、裸颊鲷、鹦嘴鱼和隆头鱼科鱼类等。华阳和永暑礁鱼类资源比较丰富,具有较高的开发潜力;东门、美济和南薰礁次之,也有一定的生产价值;赤瓜和渚碧礁基本没有开发价值。

关键词：鱼类资源调查珊瑚礁南沙群岛