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| 1 | Grain size records reveal variability of the East Asian Winter Monsoon since the Middle Holocene in the Central Yellow Sea mud area,China显示文摘Three cores(ZY-1,ZY-2 and ZY-3) retrieved from the Central Yellow Sea mud(CYSM) were analyzed in sensitive grain size and AMS 14 C dating to reconstruct the history of the East Asian Winter Monsoon(EAWM) since the Middle Holocene in the study area.The results show that these data provide a continuous history of the EAWM over the past 7.2 ka and that the EAWM can be divided into three periods:strong and highly fluctuating during 7.2-4.2 ka BP;moderate and relatively stable during 4.2-1.8 ka BP;and weakened during 1.8-0 ka BP.Compared with the East Asian Summer Monsoon(EASM) recorded in the previous studies,the evolutionary history of the EAWM broadly follows the orbital-derived winter insolation with a similar long-term step-decreased trend as the EASM.At the centennial scale,however,the EAWM intensified events correlate well with the EASM weakened events and the North Atlantic climatic variations(Bond events 0 to 5) within the dating error,most likely forced by the reduction of solar irradiance through changes in the oceanic-atmospheric circulation patterns. | HU BangQi YANG ZuoSheng ZHAO MeiXun Yoshiki SAITO FAN DeJiang WANG LiBo | 2012 | Science China Earth Sciences2012，55，10： | 39 |
| 2 | Sea surface temperature records of core ZY2 from the central mud area in the South Yellow Sea during last 6200 years and related effect of the Yellow Sea Warm Current显示文摘Sea surface temperature (SST) records in the South Yellow Sea during the last 6200 years are reconstructed by the unsaturation index of long-chain alkenones (K 37 U ') in sediment core ZY2 from the central mud area.The SST records varied between 14.1 and 16.5°C (15.6°C on average),with 3 phases:(1) A high SST phase at 6.2-5.9 cal ka BP;(2) A low and intensely fluctuating SST phase at 5.9-2.3 cal ka BP;and (3) A high and stable SST phase since 2.3 cal ka BP.Variation of the SST records is similar to intensity of the Kuroshio Current (KC),and corresponds well in time to global cold climate events.However,the amplitude of the SST response to cooling events was significantly different in different phases.The SST response to global cooling event was weak while the KC was strong;and the SST response was strong while the KC was weak.The difference in amplitude of the SST response is possibly caused by the modulation effect of the Yellow Sea Warm Current which acts as a shelf branch of the KC and a compensating current induced by the East Asia winter monsoon.The warm waters brought by the Yellow Sea Warm Current cushion the SST decrease induced by climate cooling,and both the Kuroshio and East Asian winter monsoon play important roles in the modulation mechanism.The SST records display a periodicity of 1482 years.The same period was found in the KC records,indicating that variation of the SST records in the central South Yellow Sea is strongly affected by KC intensity.The same period was also found in Greenland ice cores and North Atlantic and Arabian Sea sediment cores,showing a regional response of marine environmental variability in the East China Seas to that in the global oceans. | WANG LiBo YANG ZuoSheng ZHANG RongPing FAN DeJiang ZHAO MeiXun HU BangQi | 2011 | Chinese Science Bulletin2011，56，15： | 13 |
| 3 | Distribution and Accumulation Characteristics of Heavy Metals in Sediments in Southern Sea Area of Huludao City, China显示文摘The southern sea area of the Huludao City, Liaoning Province might be polluted by heavy metals because it is close to the Jinzhou Bay, one of the heaviest sea area polluted by heavy metals in China. The undisturbed modern sediment core can be used to analyze the accumulation and source of the pollutants using 137 Cs and 210 Pb ex . Thirty-five samples of surface sediment and two core sediments were collected from the southern sea area of Huludao City. The concentrations of copper (Cu), lead (Pb), chrome (Cr), zinc (Zn), arsenic (As) and mercury (Hg) in the surface sediments as well as Cu, Pb, Zn, Cr, 137 Cs and 210 Pb ex in the core sediments were determined to research the spatial distribution and accumulation characteristics, and to analyze the sources and the potential risks of heavy metals. The results show that the pollution levels of Zn and Hg are serious, and 26 stations are at moderate or heavy ecological risks. The concentrations of the heavy metals increase from east to west, as well as from open sea to offshore marine area. The concentrations of heavy metals are not high in the sediments adjacent to the Jinzhou Bay, and the influence caused by the seawater exchange with the Jinzhou Bay is little. The concentrations of the heavy metals in the core sediments show low-high-low characteristic, and it coincides with the pollution history of Huludao City. The atmospheric deposition of heavy metals from the Huludao Zinc Plant is likely to be the main source of pollution without direct discharge of wastewater. The high concentrations of heavy metals appear on the upper sediment of 20 cm. The shallow sediment with high heavy metal contents might be exposed to surface when it was disturbed by the ocean engineering and big storm surge, then cause risk to the safety of aquaculture and human healthy. | WANG Yan LIU Ruhai FAN Dejiang YU Ping WANG Jinyu TANG Aikun | 2013 | Chinese Geographical Science2013，23，2： | 12 |
| 4 | Geochemical records in the subaqueous Yangtze River delta and their responses to human activities in the past 60 years显示文摘Based on studies of the geochemical elements of core sediments collected from the subaqueous Yangtze River delta front, combined with 210Pb and 137Cs nuclide dating, element recording profiles were set up and anthropogenic impacts on the sedimentary records were considered. The results suggest that (1) The core formed since 1945, of homogeneous clay and silt sediments. (2) The content of most elements underwent little change, but the content of S and Nb increased gradually. In particular concentrations of these elements and heavy metals increased rapidly and were maintained at high levels in the surface and sub-surface layers (i.e. since the 1990s). The elements S, As and Nb and principal factor 4 (F4), which were sensitive to anthropogenic impacts, could be used as indicators of human activities. (3) The value of each indicator has increased gradually since 1945, with a sharp increase over the last 20 years. When divided according to changing values of the indicators at 185 cm (1955), 97 cm (1978), 47 cm (1992), and 7 cm (2003), five periods of the geochemical elements records were obtained. These corresponded to the ages of from the Chinese Civil War to the early stages of planned economy, the implementation of planned economy, the reform and opening-up period, the market economy establishment phase and the environment control and protection stage after 2003, respectively. | LIU Ming FAN DeJiang | 2011 | Chinese Science Bulletin2011，56，6： | 12 |
| 5 | Seasonal variation of sedimentation in the Changjiang Estuary mud area显示文摘Seasonal distributions of suspended matter and their sedimentary effect on the Changjiang Estuary mud area of the East China Sea were discussed, based on three cruise data of total suspended matter, temperature and salinity collected from the Changjiang Estuary and its adjacent area in summer and winter. The results show that the basic pattern of distributions of suspended matter in the study area is almost the same in winter and in summer. Sediments from Changjiang (Yangtze River) to the sea are chiefly trapped to the west of 123 o 15’E due to a strong obstruction of the Taiwan Warm Current. This suggests that these sediments are mainly transported and deposited in the inner shelf. The sediment supply, Taiwan Warm Current, and Zhejiang Coastal Current show a strong seasonal variation, which results in a strong seasonal variation of the sedimentary effect on this mud area. This mud area is a 'sink' of the Changjiang’s sediment discharge to the sea and its sedimentation is stronger in summer and weaker in winter. | GUO Zhigang,YANG Zuosheng,FAN Dejiang,PAN Yanjun(College of Marine Geosciences, Ocean University of China, Qingdao 266003, China) | 2003 | Journal of Geographical Sciences2003，13，3： | 8 |
| 6 | Heavy metals in surficial sediments of the central Bohai Sea:their distribution,speciation and sources显示文摘The semi-enclosed Bohai Sea has received large amount of pollutants from surrounding rivers and sewage channels along the densely populated and industrializing Bohai coasts,as well as the offshore oil exploration in the sea.The concentrations of heavy metals copper,cobalt,nickel,zinc,lead,chromium and cadmium in 25 surface sediment samples from the central Bohai Sea are obtained by ICP-MS analysis.The speciation of these heavy metals is extracted and their distribution,fractionation,pollution status and sources are presented.High concentrations of copper,cobalt,nickel,zinc and chromium are found in the sediments off the coastal area of the Bohai Bay and the central Bohai Sea mud,while high concentrations of cadmium and lead are found in the sediments in the whole study area.The residual fraction is the dominant form of copper,cobalt,nickel,zinc and chromium in the surface sediments,while cadmium and lead have large proportions in the nonresidual fractions.The ecological risk assessment shows that the sediments in the study area are unpolluted with respect to the heavy metals of cobalt,nickel and chromium and unpolluted to moderately polluted with respect to copper,zinc,cadmium and lead.Cobalt,nickel and chromium mainly have natural origin and their concentrations significantly vary with the composition of the sediments.The contents of copper,zinc,lead and especially cadmium in sediments are suggested to be influenced by pollutants of human activities.The heavy metals in the surface sediments at most sampling stations are mainly come from the Huanghe River;the heavy metals in the sediments in the northernmost part of the study area are significantly affected by the sediment from the Luanhe River;while in the Bohai Bay and the central region they were affected by the sediment from the Haihe River and aerosol deposition. | LIU Ming FAN Dejiang LIAO Yongjie CHEN Bin YANG Zuosheng | 2016 | Acta Oceanologica Sinica2016，35，9： | 7 |
| 7 | Suspended zinc sulfide particles in the Southwest Indian Ridge area and their relationship with hydrothermal activity显示文摘Suspended particle samples collected in the water column at 7 stations in the hydrothermal vent area in the Southwest Indian Ridge were studied by electronic scanning microscope(SEM)and energy dispersive X-ray spectrometry(EDX).A method of zinc sulfide(ZnS)mineral phase identification by SEM and EDX data was proposed,and related adequacy and limitation of the method were presented.29 ZnS particles with various morphologies were found.27 sphalerite particles and two wurtzite particles were distinguished by joint consideration of their morphology and chemical element composition.Two types of sphalerite particles with different dissolving intensities were differentiated,which may be depended on the duration of the particles existence in the water column.More than half of the total sphalerite particles include 12high Fe-containing particles(Fe[10 wt%)were found at the Station 21VII-CTD7,suggesting a close link to the adjacent active hydrothermal vent.Sphalerite particles at Station 2VI-CTD3 contained only one Fe-containing particle and their amount ranked second among that at all the survey stations,suggesting a good correspondence to the adjacent inactive hydrothermal vent.Only six non-iron ZnS particles were found at the rest eastern 5 stations,suggesting a weak influence of hydrothermal activities in the eastern area. | Xiaoxia Sun Zuosheng Yang Dejiang Fan Ming Liu | 2014 | Chinese Science Bulletin2014，59，9： | 5 |
| 8 | The grain-size distribution of the suspended particulate matter in the Huanghe Estuary and its adjacent sea area in winter显示文摘The grain-size of suspended particulate matter (SPM) in the Huanghe Estuary and its adjacent sea area was investigated with an in situ laser particle size analyzer (LISST-100) in November 2006.The spatial distribution of the grain-size parameters was very complicated.The results show that (1) the mean particle size of SPM ranged from 3.00Φ to 6.41Φ,with an average value of 4.66Φ;(2) the frequency distribution patterns of the SPM grain-size showed three different types,which were mono-mode,dual-mode and tri-mode,respectively;(3) C-M chart suggested that the transportation-processes of the SPM not only included suspended mode,but also the bed load transportation mode.The bed load transportation mode mainly occurred at the bottom layer.The characteristics and space distribution of SPM grain-size might be mainly controlled by sediment discharge of the Huanghe River,hydrodynamics condition,surface sediment types,and biological process within the study area. | ZENG Ming FAN Dejiang SUN Xiaogong WANG Shuai YANG Zuosheng | 2011 | Acta Oceanologica Sinica2011，30，2： | 1 |
| 9 | Grain size characteristics of the carbonate-free fraction of surface sediments from the Southwest Indian Ridge area and its geological significance显示文摘The carbonate-free fraction of 20 surface sediments collected from the ultraslow-spreading Southwest Indian Ridge(SWIR) was studied by grain size analysis and mineralogical analysis with X-ray powder diffraction(XRD),stereo microscopy and scanning electron microscopy(SEM). The characteristics of the carbonate-free fraction of the sediments were obtained, and related influential factors were discussed. The results show that the mean grain size of this fraction is in 1.96Φ–8.19Φ, with poorly sorting and unimodal, bimodal or irregular bimodal distribution patterns. Four grain size end members of the fraction are derived with the End Member Model method. The finest end member EM1 shows a significant contribution of terrigenous materials of the aeolian input and sediment carried by the bottom current. End member EM2 with medium size mainly reflects sediment of a siliceous bioclast origin. EM3 and EM4 are interpreted as representing the coarser volcanic materials related to bedrock weathering or volcanic activities. Multi-provenance is the dominant factor controlling the grain size pattern of the carbonate-free fraction of the sediments in that area. In addition, sediment transport processes such as the bottom current and wind are the minor factors that influence the grain size distribution of the carbonate-free fraction sediments. | Qi Jia Dejiang Fan Xiaoxia Sun Ming Liu Wenqiang Zhang Zuosheng Yang | 2019 | Acta Oceanologica Sinica2019，38，2： | 1 |
| 10 | Enrichment of heavy metals in the inner shelf mud of the East China Sea and its indication to human activity显示文摘 | Bin Chen Dejiang Fan Weiran Li Liang Wang Xilin Zhang Ming Liu Zhigang Guo | 2014 | Continental Shelf Research2014，，： | 1 |
| 11 | Tracking historical lead pollution in the coastal area adjacent to the Yangtze River Estuary using lead isotopic compositions显示文摘 | Yunchao Hao Zhigang Guo Zuosheng Yang Dejiang Fan Ming Fang Xiangdong Li | 2008 | Environmental Pollution2008，，3： | 1 |
| 12 | The Mineral Composition and Sources of the Fine-Grained Sediments from the 49.6?E Hydrothermal Field at the SWIR显示文摘We used the X-ray diffraction method to determine systematically the mineral phases in bulk sediment samples and acid undissolved residuals of the fine-grained fraction of the surface sediments from the 49.6°E hydrothermal field at the Southwest Indian Ridge(SWIR)and discussed the mineral sources of the surface sediments.The results showed that the surface sediments in this region were composed of calcareous ooze,and calcite was the dominant mineral.The sediments also contained quartz,feldspar,clay minerals,pyroxene,sphalerite,barite,serpentine,and magnetite.The quartz,feldspar,and clay minerals were exogenous minerals that mainly originated from the Namib and Kalahari deserts in southern Africa.The pyroxene,serpentine,magnetite,sphalerite,calcite,and barite were endogenous minerals from weathering of seafloor basement rocks and seafloor hydrothermal activities.The sulfide particles in the sediments were mainly deposited from upwelling plumes. | ZHANG Wenqiang SUN Xiaoxia FAN Dejiang LIU Ming JIA Qi YANG Zuosheng | 2020 | Journal of Ocean University of China2020，19，1： | 1 |
| 13 | Annual lamination and its sedimentary implications in the Yangtze River delta inferred from High-resolution biogenic silica and sensitive grain-size records显示文摘 | Dejiang Fan Hongyan Qi Xiaoxia Sun Yong Liu Zuosheng Yang | 2010 | Continental Shelf Research2010，，2： | 1 |
| 14 | Research Progress in Refining Process for Production of Caprolactam by Beckman Rearrangement Reaction显示文摘Caprolactam, which is mainly produced via the Beckmann rearrangement reaction, is an important chemical material. The strict specifications of caprolactam products make the refining process of caprolactam extremely important. According to the different rearrangement process, the refining process of caprolactam is also different. The main refining sequence of liquid phase rearrangement products includes extraction, ion exchange, hydrogenation, and distillation. The refining process of gas phase rearrangement products is conducted mainly through distillation, crystallization, and hydrogenation. In this paper, the research progress of caprolactam refining technology will be summarized according to different rearrangement reaction processes, which will provide a reference for the selection of appropriate caprolactam refining process. | Wang Hao Zhang Dejiang Fan Yingqi Xie Li Luo Yibin Zong Baoning | 2019 | China Petroleum Processing & Petrochemical Technology2019，21，2： | 1 |
| 15 | Annual lamination andits sedimentary implications in the Yangtze River delta inferred from-High-resolution biogenic silica and sensitive grain-sizerecords显示文摘 | Fan Dejiang Qi Hongyan Sun Xiaoxia | 2011 | Continental Shelf Research2011，31，： | 1 |
| 16 | Combination of Shengmai San and Radix puerariae ameliorates depression-like symptoms in diabetic rats at the nexus of PI3K/BDNF/SYN protein expression显示文摘Background:Hyperglycemia is a characteristic feature of diabetes that often results in neuropsychological complications such as depression.Diabetic individuals are more vulnerable to experience depression compared to the normal population.Thus,novel treatment approaches are required to reduce depressive symptoms among diabetic individuals.Traditional Chinese medicines(TCMs)such as Shengmai San(SMS)and Radix puerariae(R)are usually widely used to treat ailments such as neurological com-plications since ancient time.Methods:In this study,SMS was combined with R to prepare an R-SMS formulation and screened for their antidepressant activity in diabetic rats.The antidepressant po-tential of the prepared combination was evaluated behaviorally using open field test,novelty-induced hypophagia,and forced swim test in diabetic rats with biochemical and protein expression(PI3K,BDNF[brain-derived neurotrophic factor],and SYN[pr-esynaptic vesicle protein])analysis.Results:Diabetic rats(streptozotocin,45 mg/kg)showed elevated fasting blood glu-cose(FBG)>12 mM with depressive symptoms throughout the study.Treatment with R-SMS(0.5,1.5,and 4.5 g/kg)significantly reverted depressive symptoms in diabetic rats as evinced by significantly(p<0.05)reduced immobility time with an increased tendency to eat food in a novel environment.Treatment with R-SMS also significantly increased the protein expression of PI3K,BDNF,and SYN protein,which play a crucial role in depression.Conclusion:This study showed that R-SMS formulation antagonized depressive symptoms in diabetic rats;thus,this formulation might be studied further to develop as an antidepressant. | Ayaz Ahmed Guirong Zeng Mudassar Azhar Fengzhong Wang Jingru Wang Bei Fan Xinmin Liu Dejiang Jiang Qiong Wang | 2023 | Animal Models and Experimental Medicine2023，6，3： | 1 |
| 17 | The Origin and Preservation of Suspended Barites near the 90°E Ridge in the Northeastern Indian Ocean显示文摘Suspended particulate barite crystals were detected in the water columns at four different stations near the 90°E ridge in the Indian Ocean.Four distinct morphological types of marine barites were distinguished:euhedral-subhedral crystals,oval or round crystals,rhombic crystals,and irregular crystals.The barite crystals in the study area are typically fine,with a dominant size of 1–3μm.The vertical distribution of barites is significantly affected by the formation and sedimentation processes.Barites begin to appear at a depth of 30 m and are formed primarily from the surface to the depth of 2000m with a concentration peak at the depth of 200m,where particles are coarser than those in the other layers.The barites begin to settle and dissolve once formed in the water column,resulting in finer barite particles and lower particle concentrations.The formation of barite crystals is related to biological processes associated with the decomposition of barium-rich skeletons in the microenvironment of decaying organic matter that is affected by the primary productivity and dissolved oxygen content in the water column.The dissolving process of barite crystals showed similar variation with the concentration of dissolved barium in ocean water,and the substitution of strontium for barite in crystals promotes the selective dissolution of barite and exerts an important impact on its morphology.It is approximately 33%of barites in the amount and 22%in the concentration to settle to the bottom of the water column compared to that observed in the main barite formation zone. | BU Xuejiao LIU Ming DING Yi YANG Yadi HUANG Mu SUN Xiaoxia FAN Dejiang YANG Zuosheng | 2023 | Journal of Ocean University of China2023，22，1： | 0 |
| 18 | Characteristics and Origins of Suspended Pyrite in the Mixing Zone of the Yangtze Estuary显示文摘For a long time,most studies about pyrite have focused on sediments while only a few have focused on pyrite in water.In this study,a method that combines the scanning electron microscopy(SEM)and the energy dispersive X-ray spectrometry(EDS)was used to compare pyrite particles suspended in water to those in associated bottom sediments,both obtained from the mixing zone of the Yangtze Estuary.It was found that the pyrite particles in the two media have similar morphologies and size distributions.The particle morphology mainly includes two types,single crystal and aggregate,and the particle size mainly ranges from 0.5 to 2μm.The pyrite particles in water exhibit an increase in relative content towards the sea,and their transport and deposit processes are mainly affected by hydrodynamic conditions.It is concluded that the pyrite particles in the suspended matter mainly derived from the resuspension of sediments,which are products of the early diagenesis.Precursor minerals may appear during the formation of pyrite,but are generally restricted by the diagenetic environment and local microenvironment. | PANG Yue FAN Dejiang SUN Xiaoxia SUN Xueshi LIU Ming YANG Zuosheng | 2020 | Journal of Ocean University of China2020，19，4： | 0 |
| 19 | Foraminiferal Changes and Response to the Channel Diversion and Discharge Fluctuation of the Yellow River in the North Yellow Sea During the Past Century显示文摘Diversion of the Yellow River is a unique geological event in offshore China,causing changes of the sedimentary environment in eastern China Seas.The last diversion took place in AD 1855,with the estuary diverted from the Yellow Sea into the Bohai Sea.The identification of the river diversion events in the shelf sediments would not only provide the definite ages for the sediments,but also give a clue for better understanding of the sedimentation in that area.In this study,210 Pb,grain size,geochemical element,and foraminiferal data in core H205 from the north Yellow Sea were systematically investigated.A high-resolution sedimentary record was established,which was coupled with the Yellow River diversion and runoff changes.The results show that the foraminiferal composition and foraminiferal abundance of the sediments from the north Yellow Sea had good response to the Yellow River diversion in 1855.Before the change,shallow water assemblages dominated the foraminifera,and the abundance of each foraminiferal species was very low.After the diversion event,the abundance of most foraminifera increased sharply,with a maximum increase of 16 times,and the assemblage was still dominated by shallow water species.Furthermore,the changes in foraminiferal abundance in the core sediments corresponded well with the discharge fluctuation of the Yellow River since 1855.When the Yellow River began entering the Bohai Sea,the Yellow River water,which is rich in nutrients,along with the coastal currents affected the north Yellow Sea,increased the primary productivity in the north Yellow Sea,which is the main reason for the abrupt increase and fluctuation of foraminiferal abundance in this area.At the meantime,the East Asian winter monsoon could also promote the development of nearshore foraminiferal species by enhancing the coastal currents. | ZHENG Shiwen FAN Dejiang TIAN Yuan XU Jingping | 2019 | Journal of Ocean University of China2019，18，6： | 0 |
| 20 | High-resolution sedimentary record of lead in the coastal mud of the East China Sea in the past one hundred and fifty years显示文摘 | Yunchao HAO Zhigang GUO Dejiang FAN | 2006 | Chinese Journal Of Geochemistry2006，25，B08： | 0 |
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