|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Relations between sedimentary sequence and paleoclimatic changes during last 200 ka in the southern South China Sea显示文摘Core NS-93-5 was taken from the mild slope terrace of the southern South China Sea (SCS), which has preserved the steadiness depositional record of the normal marine environment since late Quaternary. Sedimentary sequence and oxygen isotopic stratigraphy of high resolution in the near 200 ka of the southern SCS has been established. By the comparative analysis with GISP2’s ice core, the depositional record of D/O’s events 1-21 and Heinrich’s events H1-H6 in the southern SCS that reflected the quick climate change in short time scale since the last interglacial stage is revealed, which indicates that in the last 200 ka in the southern SCS and the Arctic area there was tele-connection of paleoclimate and the unstability of the Western Pacific Warm Pool. This note shows that the sedimentary layers order of this sea area classified by color identification and by oxygen isotope stratum has the very good corresponding relation. The color feature of sediment changes along with the climate and the former | Muhong Chen Xia Tu Fan Zheng Wen Yan Xianzan Tang Jun Lu Baogui Wang Miao’an Lu | 2000 | Chinese Science Bulletin2000，45，14： | 12 |
| 2 | Radiolarian record to paleoecological environment change events over the past 1.2 MaBP in the southern South China Sea显示文摘This note studies the Radiolarian fossil groups since 1.2 MaBP in ODP leg 184 site 1143, the southern South China Sea (SCS). The result shows that radiolarian abundance experienced a significant variation: before 0.9 MaBP it remained at the extremely low level, but increased with low extent between 0.9-0.65 Ma, which corresponded to the Mid-Pleistocene Transition stage, and it increased rapidly after 0.65 MaBP. During the whole process, the average abundance became higher and higher in each stage, and showed regularly periodic fluctuations. The obvious increase after 0.65 MaBP is inferred to result from the enhanced up-welling in this region, which was induced by the intensified monsoon circulation after the 'Mid-Pleistocene Transition'. An outstanding result of the spectral analyses is that a long oscillation of - 0.2 Ma cycle was found in the records of radiolarian abundance and complex diversity, which corresponds well to the result of other paleoceanographic indexes. This probably indicated a | YANG Lihong CHEN Muhong WANG Rujian ZHEN Fan | 2002 | Chinese Science Bulletin2002，47，17： | 8 |
| 3 | Radiolarian transfer function for paleo-primary productivity in the South China Sea显示文摘Basic data of radiolarian group and primary productivity were from 46 investigation stations of the South China Sea. The factor analysis of principal component and the least squares estimation in both linear regression and nonlinear estimation were applied to establishing the radiolarian transfer function for paleo-primary productivity in this sea area. The results show that the transfer function of nonlinear regression analysis for the radiolarian assemblage and primary productivity has much better parameters. Factors analysis has accumulating variance of 83.6% and communalities of more than 0.940347. Nonlinear regression analysis gives multiple correlation coefficient as 0.84888 and explained variance as 72.059%. The equation of transfer function is with an average estimated error of about 53.778 mg·C/m^2·d, which is 14.69% in average observed values. Calculation accuracy is 85.31% for the system of transfer function. | Muhong Chen Liangmin Huang Xia Tu Fan Zheng | 1999 | Chinese Science Bulletin1999，44，13： | 6 |
| 4 | Youger Dryas and Heinrich events recorded by magnetic susceptibility of sediments from the central temperature area of Western Pacific Warm Pool显示文摘Three short geomagnetic excursions, the Go thenburg, Mono Lake and Mungo (or Maelifell) in the Brunhes Positive Polarity period, were revealed based on the studies of magnetostratigraphy, susceptibility (c) and d 18O of sediments in core WP 92-5 from the central temperature area of the Western Pacific Warm Pool (WPWP), and the ages of them are 12.111.3 kaBP, 25.024.0 kaBP, and 31.028.0 kaBP respectively. Furthermore, the Younger Dryas (YD) and Heinrich (H) cold events were also discov- ered in this core by the susceptibility record. The YD cold event occurred at the depth of 3022 cm with an age of 11.510.6 kaBP; H1, H2 and H3 cold events occurred at depths of 5139 cm, 10891 cm and 140126 cm with ages of 15.113.0 kaBP, 25.022.1 kaBP and 30.628.2 kaBP respectively, which well correspond to the H1, H2, H3 events recorded by susceptibility of core SU90-09 from middle At- lantic, indicating that the susceptibility change of marine sediments can be an important sign of climatic frequent fluc- tuations. | TANG Xianzan, CHEN Zhong,YAN Wen & CHEN Muhong The Open Laboratory of Geology and Paleoenvironment of Marginal Sea, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China | 2003 | Chinese Science Bulletin2003，48，8： | 5 |
| 5 | Distribution of living radiolarians in spring in the South China Sea and its responses to environmental factors显示文摘Using a planktonic net(62-?m mesh) and a Rose-Bengal staining method, we studied the spatial distribution of living radiolarians in spring along two sections of the South China Sea(SCS) in spring and discussed the responses of living radiolarian distribution to tropical environmental factors. Generally, the highest abundance of living radiolarians occurred at the depth range of 25–75 m, where the chlorophyll-a maximum and the highest primary productivity were. In contrast, the maximum living abundance occurred in the top 25 m in cold eddies in the open seas and the abundance decreased with depth. We found that the inhibition effect of changing salinity(due to runoffs) on living radiolarians was much stronger than the promotion effect of mesoscale cold eddies. We observed that large variation of temperature was unfavorable for living radiolarians. The dominant species composition consisted of tropical-subtropical warm species. We identified some indicator species for tropical environments. Living Didymocyrtis tetrathalamus tetrathalamus could be an indicator for tropical surface water or mixed-layer water, and even for tropical oligotrophic water. Living Tetrapyle octacantha could be used to indicate tropical thermocline and eutrophic environment. Living Acanthodesmia vinculata could indicate tropical surface and subsurface waters. T. octacantha and A. vinculata should only be used as indicators for upwelling in the open seas, i.e., far away from river mouths. Living Siphonosphaera polysiphonia preferred to form colonies, which might be related to the effect of warm eddies. Living Cyrtopera laguncula and living Cornutella profunda occurred in the tropical upper layer, even in the surface layer, which suggests that they should not be used as indicators for intermediate and deep waters. | HU WeiFen ZHANG LanLan CHEN MuHong ZENG LiLi ZHOU WeiHua XIANG Rong ZHANG Qiang LIU ShiHao | 2015 | Science China Earth Sciences2015，58，2： | 4 |
| 6 | Distribution of diatoms in the water and surface sediments of southern South China Sea显示文摘The relationship of species and abundance between the diatoms in the water and sediments from the southern South China Sea (SCS)were discussed, and the key environmental controlling factors were also investigated. Studies show thathe diatom abundance is high in both water andsediments in the southeast part of the southern SCSand the varying trend is similar, while in the northwespart, the abundance is low, and the varying trend isdifferent. The dominant diatom species are Thalassionema nitzschioides and Nitzschia bicapitata inwater, and T. nitzschioides and Chaetoceros messanensis in sediments. The diatom species of smalsize and thin shell in water are more than in thesediments, while the diatom species of large size andthick shell in water are less. The percentage of species T. nitzschioides is higher in water of southeaspart than in that of northwest part, but it is similar insediments of both areas. It is shown that the southwest monsoon is the important factor influencingdiatom abundance and T. nitzschioides percentageand when the southwest monsoon is well developedthe distribution of diatom abundance and T. nitzschioides percentage are consistent in both water andsediments of the study area. | LU Jun CHEN Muhong CHEN Zhong | 2006 | Chinese Science Bulletin2006，51，B12： | 3 |
| 7 | Radiolarian biostratigraphy in the Southern Bering Sea since Pliocene显示文摘Detailed radiolarian biostratigraphy in the Plio-Pleistocene was analyzed by using samples from IODP Site U1340 that was drilled to a core depth of 604 m in the southern Bering Sea.A total of 227 species belonging to 102 genera were identified.Based on the distributions of the radiolarian index species at Site U1340,five radiolarian zones since the Pliocene were established in the southern Bering Sea for the first time,and 25 radiolarian bioevents were recognized.Their ages were estimated on the basis of the age-depth plot that was constructed by the synthetical datum of the effective biostratigraphic and magnetostratigraphic events.The radiolarian zones at Site U1340 were systematically compared with those in its adjacent regions since the late Early Pliocene,which further improved and interpreted the biostratigraphic datum as well as their correlations in the middle-high latitude of the North Pacific.In addition,the comparative results of radiolarian zones show that Botryostrobus aquilonaris Zone emended in this paper is equivalent to the upper part of the same zone defined by Hays,1970,and Druppatractus irregularis-Dorydruppa bensoni Zone as well as Spongodiscus sp.Zone,newly proposed in this paper,are well correlated with Cycladophora sakaii Zone and Stylatractus universus Zone in the subarctic North Pacific,respectively. | ZHANG Qiang CHEN MuHong ZHANG LanLan WANG RuJian XIANG Rong HU WeiFen | 2014 | Science China Earth Sciences2014，57，4： | 3 |
| 8 | Radiolarian biogeography in surface sediments of the Northwest Pacific marginal seas显示文摘Overall abundance and species composition of radiolarian faunas were analyzed in surface sediment samples from representative areas of South China Sea,East China Sea,Sea of Japan,Sea of Okhotsk,Bering Sea,Philippine Sea,and the western boundary current regions of the NorthPacific,in order to understand the biogeographic distribution of radiolarians in the Northwest Pacific and explore its relationship with the main environmental factors and the North Pacific circulation.The results showed that radiolarians in the Northwest Pacific surface sediments can be divided into two large biogeographic provinces—cluster A and cluster B.Cluster A is characterized by the dominance of warm-water species and distributed primarily in tropical and subtropical seas with high radiolarian abundance and diversity;whereas cluster B is predominated by cold water species and distributed mainly in the Arctic and subarctic seas with comparably low abundance and diversity.Cluster A is further divided into five subclusters,Al to A5,which correspond to East China Sea,Philippine Sea,South China Sea,Sea of Japan,and Kuroshio Current,respectively;cluster B is divided into three subclusters,B1 to B3,which correspond to Sea of Okhotsk,Bering Sea,and subarctic gyre area,respectively.Based on the relationships between radiolarian faunas and major environment parameters in different biogeographic provinces,we suggest that the sea surface temperature(SST) and sea surface salinity(SSS) are primary factors that influence productivity,composition,and distribution pattern of the radiolarian fauna in the Northwest Pacific regions,while water depth is likely responsible for regional differences in the radiolarian fauna in each marginal sea.In addition,according to the distribution and abundance patterns of common radiolarian species in different areas,we identified five special radiolarian assemblages,which may be used as indicators for main Kuroshio Current,Kuroshio-East China Sea Branch,Kuroshio-South China Sea Branch,Tsushima Current,and Oyashio Current water masses. | LIU Ling ZHANG Qiang CHEN MuHong ZHANG LanLan XIANG Rong | 2017 | Science China Earth Sciences2017，60，3： | 3 |
| 9 | The genesis and environmental significance of red and black sedimentary interlay ers in coral reef of well Nanyong 2显示文摘The results of paleogeomagnetics and geo-chemistry of the coral reef in well Nanyong 2 of Nansha Is-lands showed that the bottom of the black sedimentary in-terlayer corresponds to the conversion boundary line be-tween Brunhes Postive Polarity and Matuyama Reversed Polarity (B/M) and the cold/warm (19/20) climatic conver-sion bounds on ()18O curve, 0.78 Ma ago; and the red sedi-mentary interlayer corresponds to the Reunion I polarity excursion (reversion) of the geomagnetic field, 2.01-2.04 Ma ago. Comparing with the normal light-coloured coral reef rock, the magnetic susceptibility (x), residual magnetization intensity (Mr) and the content of MnO and Fe2O3 of the black sedimentary layer appeared obviously positive ab-normity. The magnetic susceptibility (x), residual magnetiza-tion intensity (Mr) and the content of Fe2O3 of the red sedi-mentary layer also appeared positive abnormity. Combining with the analyzing results of paleontology, we hold that this pair of special and typical sedimentary | Wen Yan Xianzan Tan Zhong Chen Muhong Chen Senchang Gu | 2002 | Chinese Science Bulletin2002，47，4： | 2 |
| 10 | Clay mineral assemblages at IODP Site U1340 in the Bering Sea and their paleoclimatic significance显示文摘在从在 Bering 海的 IODP 地点 1340 的沉积的克莱矿物质集合和 crystallinities 被分析以便跟踪沉积来源并且重建 Bering 海的 paleoclimatic 历史自从上新世最后 4.3 Myr。结果证明在地点 U1340 的泥土矿物质被 illite 统治,与绿土和绿泥石的中等数量,并且次要的 kaolinite。沉积来源研究建议在学习核心的泥土矿物质集合和他们的来源首先被气候条件控制。在温暖的时期期间,泥土矿物质主要从邻近的阿留申群岛之土人岛发源,并且 smectite/illite+chlorite 比率增加了。在冷时期期间,泥土矿物质首先从阿拉斯加人区域被导出,并且 smectite/illite+chlorite 比率减少了。把比率和泥土矿物质 crystallinities 基于 smectite/illite+chlorite,古气候的进化历史在 Bering 海被揭示。一般来说, Bering 海被温暖、湿的气候状况从 4.3 ~ 3.94 Myr,然后从 3.94 ~ 3.6 Myr 与提高的火山作用联系的冷、干燥的状况描绘。此后,气候逐渐地变得冷、湿,然后自从 2.74 Myr,被一个冷、干燥的条件统治,可能由北半球冻结成冰的增强导致了。从 1.95 ~ 1.07 Myr 的间隔是逐渐地变得冷、湿的气候的一个过渡时期。在中间的更新世以后转移 1.07 ~ 0.8 Myr, Bering 海主要被冷、湿的气候分别地在 0.42 妈 MIS 11, 0.33 妈 MIS 9 和 0.12 妈 MIS 5 与温暖的气候的几间隔管理。在最后 9.21 kyr 期间 Holocene, Bering 海首先被相对温暖、湿的气候的条件描绘。 | ZHANG Qiang CHEN MuHong LIU JianGuo YU ZhaoJie ZHANG LanLan XIANG Rong | 2015 | Science China Earth Sciences2015，58，5： | 2 |
| 11 | Distribution of polycystine radiolarians in the northern South China Sea in September 2005显示文摘 | ZHANG LANLAN CHEN MUHONG XIANG RONG | | 0，，： | 1 |
| 12 | Environmental evolution and impact of the Yellow River sediments on deposition in the Bo- hal Sea during the last deglaciation 显示文摘 | Liu Jianguo Li Anchun Chen Muhong | 2010 | Journal of Asian Earth Sciences2010，38，： | 1 |
| 13 | Magnetic susceptibility variations and provenance of surface sediments in the South China Sea显示文摘 | Jianguo Liu Zhong Chen Muhong Chen | 2010 | Sedimentary Geology2010，230，： | 1 |
| 14 | Magnetic susceptibility variations and provenance of surface sediments in the South China Sea显示文摘 | Jianguo Liu Zhong Chen Muhong Chen | 2010 | Sedimentary Geology2010，230，： | 1 |
| 15 | Sedi- mentary changes during the Holocene in the Bohai Sea and its paleoenvironmental implication显示文摘 | Liu Jianguo Li Anchun Chen Muhong | 2008 | Continental Shelf Research2008，28，： | 1 |
| 16 | Coherence between solar activity and the East Asian winter monsoon variability in the past 8000 years from Yangtze River-derived mud in the East China Sea显示文摘 | Xiao Shangbin Li Anchun Liu J P Chen Muhong Xie Qiang Jiang Fuqing Li Tiegang Xiang Rong Chen Zhong | 2006 | Palaeogeogr Palaeoclimatol Palaeoecol2006，237，24： | 1 |
| 17 | DESCRIPTION OF A NEW GENUS AND 12 NEW SPECIES OF RADIOLARIA IN SEDIMENTS FROM THE SOUTH CHINA SEA显示文摘 | Chen Muhong (South China Sea Institute of Oceanology Academia Sinica)Tan Zhiyuan (institute of Oceanology Academia Sinica) | 1989 | 热带海洋1989，，01： | 1 |
| 18 | Sedimentary changes during the Holocene in the Bohai Sea and its paleoenvironmental implication显示文摘 | Liu Jianguo Li Anchun Chen Muhong | 2008 | Continental Shelf Research2008，28，1011： | 1 |
| 19 | High-temperature treatment to engineer the single-atom Pt coordination environment towards highly efficient hydrogen evolution显示文摘Development of high-performance and cost-effective catalysts for electrocatalytic hydrogen evolution reaction(HER)play crucial role in the growing hydrogen economy.Recently,the atomically dispersed metal catalysts have attracted increasing attention due to their ultimate atom utilization and great potential for highly cost-effective and high-efficiency HER electrocatalyst.Herein,we propose a hightemperature treatment strategy to furtherly improve the HER performance of atomically dispersed Ptbased catalyst.Interestingly,after appropriate high-temperature treatment on the atomically dispersed Pt0.8@CN,the Pt species on the designed N-doped porous carbon substrate with rich defect sites can be re-dispersed to single atom state with new coordination environment.The obtained Pt0.8@CN-1000 shows superior HER performance with overpotential of 13 m V at 10 m A cm^(-2)and mass activity of 11,284 m A/mgPtat-0.1 V,much higher than that of the pristine Pt0.8@CN and commercial Pt/C catalyst.The experimental and theoretical investigations indicate that the high-temperature treatment induces the restructuring of coordination environment and then the optimized Pt electronic state leads to the enhanced HER performances.This work affords new strategy and insights to develop the atomically dispersed high-efficiency catalysts. | Shanyong Chen Changchang Lv Ling Liu Muhong Li Jian Liu Jinyang Ma Panpan Hao Xuan Wang Weiping Ding Mingjiang Xie Xuefeng Guo | 2021 | Journal of Energy Chemistry2021，30，8： | 0 |
| 20 | Late Neogene radiolarian absence event in the southern South China Sea and its paleoceanographic implication显示文摘Down-core variations of radiolarians at ODP Site 1143 in the southern South China Sea (SCS) are presented for the last 12 Myr. The fluctuations of radiolarian abundances since the Late Miocene can be divided into three stages: a high abundance stage at 12-5.96 Myr, a radiolarian absent stage at 5.96-3.30 Myr and a gradual increasing stage after 3.30 Myr. The three stages correspond to the forming and vicissitudes of the Western Pacific Warm Pool (WPWP) and the Eastern Asian Summer Monsoon (EASM). The radiolarian absence event (RAE) was also absent of diatom and occurred nearly simultaneously with the closures of the Panama Isthmus and the Indonesian seaway, which probably caused the reorganization of oceanic circulation systems. Accompanied this circulation reorganization was the weakening of the WPWP and the EASM, which probably led to a weakened upwelling in the southern SCS. In addition dissolved silica (Dsi) content in surface seawater might be very low during 5.96-3.30 Myr due to the ''biogenic bloom' event, which consumed a large amount of Dsi in the surface seawater. All these factors together might lead to a great decrease of siliceous production in the southern SCS and consequently caused the RAE. Moreover, the dissolution of siliceous skeletons might also influence the abundance of radiolarians. | Lili Zhang Muhong Chen Lanlan Zhang Jun Lu Rong Xiangt | 2008 | Progress in Natural Science:Materials International2008，18，3： | 0 |
您所在的机构暂未开通此部分的功能，请联系管理员