The isotopic signature of mid\|ocean ridge basalts (MORB) from the Indian Ocean is different from that of MORB from the Pacific and North\|Atlantic oceans.. The Indian MORB is characterized by lower 206 Pb/ 204 Pb, hi...The isotopic signature of mid\|ocean ridge basalts (MORB) from the Indian Ocean is different from that of MORB from the Pacific and North\|Atlantic oceans.. The Indian MORB is characterized by lower 206 Pb/ 204 Pb, hi gher 87 Sr/ 86 Sr, and lower 206 Pb/ 204 Pb for given 143 Nd/ 144 Nd than the latter (Hart, 1984; Castillo, 1988; Mahoney et al., 1998). Why the Indian Ocean mantle domain is different from the Pacific and North\|Atlantic ocean mantle domain is still unclear. Two general classes of hypotheses have been proposed to explain the origin of Indian mantle (Mahoney et al., 1998). The first one is that the components of the Indian Ocean mantle domain are a fairly young mantle end\|member created during the processes of breakup of the Gondwana continent to form the Indian Ocean. The second hypothesis posits that the Indian MORB\|type isotopic signature is a long\|lived mantle domain that existed prior to the formation of the present Indian Ocean. Thus it appears that one of the keys to a better understanding of origin of the Indian Ocean\|type isotopic signature depends on its age. Although some studies (Mahoney et al., 1998; Weis and Frey, 1997) showed that the isotopic signature was as old as the Indian ocean crust (140Ma), basalts investigated in the Indian Ocean region do not prove or disprove the existence of the Indian MORB\|type isotopic signature prior to the Indian Ocean because they were taken from the Indian ocean basin itself.展开更多
气候和生物地球化学循环作为海洋科学研究的重要领域,充分利用和深入挖掘海洋地球化学数据的需求日益增长。由于对海洋大规模直接观测难度较高,且海洋内部结构复杂、相互作用过程多样,通过研究数据解译海洋地球化学过程机制和海洋在生...气候和生物地球化学循环作为海洋科学研究的重要领域,充分利用和深入挖掘海洋地球化学数据的需求日益增长。由于对海洋大规模直接观测难度较高,且海洋内部结构复杂、相互作用过程多样,通过研究数据解译海洋地球化学过程机制和海洋在生物地球化学循环中的作用往往需要对多种海洋物理和化学参数进行协同分析。海洋数据可视化软件作为高质量呈现数据视图的媒介,具备分析、处理、可视化数据的强大功能,可作为直观研究海洋学数据的有力工具。目前,国内关于海洋数据可视化软件的介绍多侧重原理,缺乏关于具体操作方面的指导。本文详细介绍了Ocean Data View(ODV)和Java OceanAtlas(JOA)的基本操作及数据可视化流程,对断面图、平面图、瀑布图等多类图式的绘制和数据分析方法进行说明,并对比这两种软件的差别;通过实例介绍ODV的开发功能在处理和可视化数据方面的优势及其在海洋地球化学等研究领域的具体应用,以期为海洋地球化学领域的科研人员提供参考和帮助。展开更多
This paper presents the networking observation capabilities of Chinese ocean satellites and their diverse applications in ocean disaster prevention,ecological monitoring,and resource development.Since the inaugural la...This paper presents the networking observation capabilities of Chinese ocean satellites and their diverse applications in ocean disaster prevention,ecological monitoring,and resource development.Since the inaugural launch in 2002,China has achieved substantial advancements in ocean satellite technology,forming an observation system composed of the HY-1,HY-2,and HY-3 series satellites.These satellites are integral to global ocean environmental monitoring due to their high resolution,extensive coverage,and frequent observations.Looking forward,China aims to further enhance and expand its ocean satellite capabilities through ongoing projects to support global environmental protection and sustainable development.展开更多
Melt inclusions in primitive olivine phenocrysts,which has been thought to represent the primitive melts(Schiano,2003),have increasingly been applied to studies of igneous processes(Audétat and Lowenstern,2014;Ke...Melt inclusions in primitive olivine phenocrysts,which has been thought to represent the primitive melts(Schiano,2003),have increasingly been applied to studies of igneous processes(Audétat and Lowenstern,2014;Kent,2008),including lunar magmatism(Chen et al.,2015;Hauri et al.,2011;Saal et al.,2013).However,some melt inclusions in primitive olivine phenocrysts in various tectonic settings。展开更多
基于HYCOM(Hybrid Coordinate Oceanic Circulation Model),以OFES(OGCM for the Earth Simulator)资料为参考,分析了KPP、MY2.5、KT三种不同混合方案对北太平洋西边界流系的模拟结果的影响。结果表明:三种不同混合方案模拟的上层海洋...基于HYCOM(Hybrid Coordinate Oceanic Circulation Model),以OFES(OGCM for the Earth Simulator)资料为参考,分析了KPP、MY2.5、KT三种不同混合方案对北太平洋西边界流系的模拟结果的影响。结果表明:三种不同混合方案模拟的上层海洋平均流场与OFES资料相似,但在流向和流幅上略有差异,其中KPP方案模拟的流速与OFES资料最为接近,MY2.5方案次之,KT方案与其差别最大。通过代表性断面上流速的对比分析,对模式就北赤道流、棉兰老流、棉兰老潜流、黑潮的模拟效果进行比较,KPP方案模拟的效果同前人的观测和研究最为接近。分析了北赤道流,棉兰老流,棉兰老潜流,黑潮的流量的季节变化特征,其中KPP方案与OFES资料计算的棉兰老流和棉兰老潜流的季节变化特征与前人描述比较一致,表现为春强秋弱。KPP方案和OFES资料的计算结果表明,北赤道流和棉兰老流大致上是同向变化的,而在冬季棉兰老流同黑潮的变化基本上是一致的。展开更多
Platinum group elements (PGEs) includes platinum, palladium, iridium, osmium, rhodium and ruthenium. It has very high economic and scientific value in the field of geoscience and environmental science. But the analysi...Platinum group elements (PGEs) includes platinum, palladium, iridium, osmium, rhodium and ruthenium. It has very high economic and scientific value in the field of geoscience and environmental science. But the analysis data referred by the different lab are very disperse because of the difficulty of the determination of PGEs. It makes very difficult to fix the value of the PGEs in the standard reference materials. In the article, the values of the PGEs in the standard reference materials of ocean sediment are determined by isotope dilution technique and dependable values of these elements are provided.展开更多
The College of Fisheries of our university grew from the former Department of Fisheriesof Shandong College of Oceanology, which was founded in 1946 Having struggled forwordthrough twists and turns, risen up time and a...The College of Fisheries of our university grew from the former Department of Fisheriesof Shandong College of Oceanology, which was founded in 1946 Having struggled forwordthrough twists and turns, risen up time and again from straits for a period of more than forty years,the College of Fisheries was finally established on March 4 th, 1988, in the breeze of reformand opening. This college is equipped with complete disciplines of fishery sciences, withpredominant specialities and stressed branches featuring distinctive oceanic and aquatic qualitics.The college is now striding into a new historic period.展开更多
文摘The isotopic signature of mid\|ocean ridge basalts (MORB) from the Indian Ocean is different from that of MORB from the Pacific and North\|Atlantic oceans.. The Indian MORB is characterized by lower 206 Pb/ 204 Pb, hi gher 87 Sr/ 86 Sr, and lower 206 Pb/ 204 Pb for given 143 Nd/ 144 Nd than the latter (Hart, 1984; Castillo, 1988; Mahoney et al., 1998). Why the Indian Ocean mantle domain is different from the Pacific and North\|Atlantic ocean mantle domain is still unclear. Two general classes of hypotheses have been proposed to explain the origin of Indian mantle (Mahoney et al., 1998). The first one is that the components of the Indian Ocean mantle domain are a fairly young mantle end\|member created during the processes of breakup of the Gondwana continent to form the Indian Ocean. The second hypothesis posits that the Indian MORB\|type isotopic signature is a long\|lived mantle domain that existed prior to the formation of the present Indian Ocean. Thus it appears that one of the keys to a better understanding of origin of the Indian Ocean\|type isotopic signature depends on its age. Although some studies (Mahoney et al., 1998; Weis and Frey, 1997) showed that the isotopic signature was as old as the Indian ocean crust (140Ma), basalts investigated in the Indian Ocean region do not prove or disprove the existence of the Indian MORB\|type isotopic signature prior to the Indian Ocean because they were taken from the Indian ocean basin itself.
文摘气候和生物地球化学循环作为海洋科学研究的重要领域,充分利用和深入挖掘海洋地球化学数据的需求日益增长。由于对海洋大规模直接观测难度较高,且海洋内部结构复杂、相互作用过程多样,通过研究数据解译海洋地球化学过程机制和海洋在生物地球化学循环中的作用往往需要对多种海洋物理和化学参数进行协同分析。海洋数据可视化软件作为高质量呈现数据视图的媒介,具备分析、处理、可视化数据的强大功能,可作为直观研究海洋学数据的有力工具。目前,国内关于海洋数据可视化软件的介绍多侧重原理,缺乏关于具体操作方面的指导。本文详细介绍了Ocean Data View(ODV)和Java OceanAtlas(JOA)的基本操作及数据可视化流程,对断面图、平面图、瀑布图等多类图式的绘制和数据分析方法进行说明,并对比这两种软件的差别;通过实例介绍ODV的开发功能在处理和可视化数据方面的优势及其在海洋地球化学等研究领域的具体应用,以期为海洋地球化学领域的科研人员提供参考和帮助。
基金Supported by Remote Sensing Support for Offshore Ocean Environment and Polar Sea Ice Early Warning Services(102121201550000009004)。
文摘This paper presents the networking observation capabilities of Chinese ocean satellites and their diverse applications in ocean disaster prevention,ecological monitoring,and resource development.Since the inaugural launch in 2002,China has achieved substantial advancements in ocean satellite technology,forming an observation system composed of the HY-1,HY-2,and HY-3 series satellites.These satellites are integral to global ocean environmental monitoring due to their high resolution,extensive coverage,and frequent observations.Looking forward,China aims to further enhance and expand its ocean satellite capabilities through ongoing projects to support global environmental protection and sustainable development.
文摘Melt inclusions in primitive olivine phenocrysts,which has been thought to represent the primitive melts(Schiano,2003),have increasingly been applied to studies of igneous processes(Audétat and Lowenstern,2014;Kent,2008),including lunar magmatism(Chen et al.,2015;Hauri et al.,2011;Saal et al.,2013).However,some melt inclusions in primitive olivine phenocrysts in various tectonic settings。
文摘基于HYCOM(Hybrid Coordinate Oceanic Circulation Model),以OFES(OGCM for the Earth Simulator)资料为参考,分析了KPP、MY2.5、KT三种不同混合方案对北太平洋西边界流系的模拟结果的影响。结果表明:三种不同混合方案模拟的上层海洋平均流场与OFES资料相似,但在流向和流幅上略有差异,其中KPP方案模拟的流速与OFES资料最为接近,MY2.5方案次之,KT方案与其差别最大。通过代表性断面上流速的对比分析,对模式就北赤道流、棉兰老流、棉兰老潜流、黑潮的模拟效果进行比较,KPP方案模拟的效果同前人的观测和研究最为接近。分析了北赤道流,棉兰老流,棉兰老潜流,黑潮的流量的季节变化特征,其中KPP方案与OFES资料计算的棉兰老流和棉兰老潜流的季节变化特征与前人描述比较一致,表现为春强秋弱。KPP方案和OFES资料的计算结果表明,北赤道流和棉兰老流大致上是同向变化的,而在冬季棉兰老流同黑潮的变化基本上是一致的。
文摘Platinum group elements (PGEs) includes platinum, palladium, iridium, osmium, rhodium and ruthenium. It has very high economic and scientific value in the field of geoscience and environmental science. But the analysis data referred by the different lab are very disperse because of the difficulty of the determination of PGEs. It makes very difficult to fix the value of the PGEs in the standard reference materials. In the article, the values of the PGEs in the standard reference materials of ocean sediment are determined by isotope dilution technique and dependable values of these elements are provided.
文摘The College of Fisheries of our university grew from the former Department of Fisheriesof Shandong College of Oceanology, which was founded in 1946 Having struggled forwordthrough twists and turns, risen up time and again from straits for a period of more than forty years,the College of Fisheries was finally established on March 4 th, 1988, in the breeze of reformand opening. This college is equipped with complete disciplines of fishery sciences, withpredominant specialities and stressed branches featuring distinctive oceanic and aquatic qualitics.The college is now striding into a new historic period.
