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A high-resolution clay mineralogical record in the northern South China Sea since the Last Glacial Maximum,and its time series provenance analysis

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Chinese Science Bulletin 2010年第35期55卷 4058-4068页

作者： LIU ZhiFei LI XiaJing COLIN Christophe ge huangmin State Key Laboratory of Marine geology Tongji University Shanghai 200092 China Laboratoire IDES UMR 8148 CNRS Universit~ de Paris XI Orsay 91405 France

High-resolution clay mineralogical analysis of Core MD05-2904 in the northern South China Sea(SCS) covering the period since the Last Glacial Maximum shows that illite(29%-48%),smectite(14%-45%),chlorite(17%-28%),and minor kaolinite(6%-14%) comprise the clay mineral assemblage,and that time series variation does not present glacial-interglacial *** analysis indicates three end-member sources:almost all smectite derives from Luzon,all kaolinite is sourced from the Pearl River,and illite and chlorite originate from both the Pearl River and *** comparing clay mineral compositions in surface sediments from the three major source areas and of the SCS,we reconstructed a time series of clay mineral contribution from the major provenances to the northern slope of the SCS using the linear separation method for illite *** were three stages of provenance change.(1) During 24.1-17.5 ka BP,contributions from Taiwan and Luzon were similar(30%-40%),while that from the Pearl River was only 25%.(2) During 17.5-14.0 ka BP,the contribution from Luzon decreased rapidly to 20%-25%,while that from Taiwan increased to 35% from an average of 25% at 18 ka BP,and that from the Pearl River increased largely to 40%.(3) During the Holocene,differences in contributions from the three major provenances increased:the contribution from Luzon increased slightly and then remained at 27%-35%,that from Taiwan increased rapidly and then remained at 55%-60%,and that from the Pearl River decreased to 15%.The change in clay mineral contributions from different provenances is influenced mainly by clay mineral production,monsoon rainfall denudation,oceanic current transport,and sea-level change.

关键词：粘土矿物南海北部时间序列高分辨率中国海末次盛冰期 Sea 珠江源

Distribution of tetraether lipids in surface sediments of the northern South China Sea:Implications for TEX_(86) proxies

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geoscience Frontiers 2013年第2期4卷 223-229页

作者： huangmin ge Chuanlun L.Zhang Hongyue Dang Chun Zhu Guodong Jia State Key Laboratory of Marine geology Tongji University Department of Marine Sciences University of Georgia State Key Laboratory of Heavy Oil Processing & Centre for Bioengineering and Biotechnology China University of Petroleum(East China) MARUM Center for Marine Environmental Sciences and Department of geosciences University of Bremen CAS Key Laboratory of Marginal Sea geology Guangzhou Institute of GeochemistryChinese Academy of Sciences

Archaea have unique glycerol dialkyl glycerol tetraether（GDGT） lipids that can be used to develop paleotemperature proxies such as *** research is to validate proposed GDGT-proxies for paleotemperature determination in the South China Sea（SCS）.Samples were collected from core-top sediments （0-5 cm） in the northern *** lipids were extracted to obtain core GDGTs,which were identified and quantified using liquid chromatography-mass spectrometry（LC-MS）.The abundance of isoprenoidal GDGTs（/GDGTs） ranged from 271.5 ng/g dry sediment to 1266.3 ng/g dry sediment,whereas the branched GDGTs（bGDGTs）,supposedly derived from terrestrial sources,ranged from 22.2 ng/g dry sediment to 56.7 ng/g dry *** TEX_（86）-derived sea surface temperatures ranged from 20.9℃in the coast（water depth 〈 160 m） to 27.9℃offshore（water depth 〉 1000 m）.TEX86-derived temperatures near shore（〈 160 m water depth） averaged 23.1±2.5℃（n =4）,which were close to the satellite-derived winter mean sea surface temperature（average 22.6±1.0℃,n = 4）;whereas the TEX_（86）-derived temperatures offshore averaged 27.4±0.3℃（n = 7） and were consistent with the satellite mean annual sea surface temperature（average 26.8±0.4℃,n = 7）.These results suggest that TEX_（86） may record the sea surface mean annual temperature in the open ocean,while it likely records winter sea surface temperature in the shallower water.

关键词： Archaea GDGTs TEX86 Paleotemperature Northern South China Sea

Sea surface temperature and terrestrial biomarker records of the last 260 ka of core MD05-2904 from the northern South China Sea

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Chinese Science Bulletin 2008年第15期53卷 2376-2384页

作者： HE Juan ZHAO MeiXun LI Li WANG PinXian ge huangmin State Key Laboratory of Marine geology Tongji University Shanghai 200092 China

This paper reports high-resolution biomarker records of the last 260 ka for core MD05-2904 from the northern South China Sea (SCS). The sea surface temperature (SST) record using the U k3’7 index re-veals a minimum of 21.5℃ (MIS 2) and a maximum of 28.3℃ (MIS 5.5), for a temperature difference of almost 7℃, and provides the longest high-resolution U k3’7 SST record in northern SCS. The content of odd-number long chain n-alkanes and several n-alkanes indexes such as the CPI, ACL and the C31/C27 ratio, all reveal generally higher values during the glacials and lower values during the interglacials. Terrestrial input as indicated by n-alkane content was mostly controlled by sea-level changes: During the glacials, lower sea-level exposed the continental shelf to enable rivers to transport more terrestrial materials to the slope; and the situation reverses during the interglacials. The n-alkane indexes changes reveal more n-alkanes from contemporary vegetation during glacials as a result of the prox-imity of the core site to the source region, while the increases in ACL and C31/C27 ratio during glacials indicate a change to more grassy vegetation. However, the highest values for CPI, ACL and the C31/C27 ratio all occurred during late MIS 3, and it was suggested that this period was characterized by a strong summer monsoon-dominated humid climate which resulted in a denser vegetation for the exposed continental shelf region.

关键词：北部南中国海海洋表面温度陆地输入海洋学

Evolution of the East China Sea sedimentary environment in the past 14 kyr: Insights from tetraethers-based proxies

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Science China Earth Sciences 2016年第5期59卷 927-938页

作者： ge huangmin ZHANG ChuanLun VERSTEEGH gerard J.M. CHEN LingLing FAN DaiDu DONG Liang LIU JingJing State Key Laboratory of Marine geology Tongji University Hadal Science and Technology Research Center (Shanghai Engineering Research Center of Hadal Science and Technology) Shanghai Ocean University Heisenberg Group on Marine Kerogen Center for Marine Environmental Sciences (MARUM) Bremen University

We reconstruct the environmental evolution of the East China Sea in the past 14 kyr based on glycerol dialkyl glycerol tetraethers(GDGTs) in a sediment core from the subaqueous Yangtze River Delta. Two primary phases are recognized. Phase I(13.8–8 cal kyr BP) reflects a predominantly continental influence, showing distinctly higher concentrations of branched GDGTs(averaged 143 ng/g dry sediment weight, dsw) than isoprenoid GDGTs(averaged 36 ng/g dsw), high BIT index(branched vs. isoprenoid tetraethers) values(>0.78) and a fluctuating GDGT-0/crenarchaeol ratio(R_(0/5), varied from 0.52 to 3.81). Within this interval, temporal increases of terrestrial and marine influence are attributed to Younger Dryas(YD)(ca. 12.9–12.2 cal kyr BP) cold event and melt-water pulse(MWP)-1B(11.5–11.1 cal kyr BP), respectively. The prominent transition from 8 to 7.9 cal kyr BP shows a sharp decrease in BIT index value(ge basin.

关键词： GDGTs Proxies Sedimentary environment evolution Holocene East China Sea

Composition and origin of lipid biomarkers in the surface sediments from the southern Challenger Deep, Mariana Trench

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geoscience Frontiers 2019年第1期10卷 351-360页

作者： Hongxiang Guan Linying Chen Min Luo Lihua Liu Shengyi Mao huangmin ge Mei Zhang Jiasong Fang Duofu Chen Key Laboratory of Gas Hydrate Guangzhou Institute of Energy Conversion Chinese Academy of Sciences Laboratory for Marine geology Qingdao National Laboratory for Marine Science and Technology Shanghai Engineering Research Center of Hadal Science and Technology College of Marine Sciences Shanghai Ocean University

The surface sediments collected from the southern Mariana Trench at water depths between ca.4900 m and 7068 m were studied using lipid biomarker analyses to reveal the origin and distribution of organic matters. For all samples, an unresolved complex mixture(UCM) was present in the hydrocarbon fractions, wherein resistant component tricyclic terpanes were detected but C_(27)-C _(29) regular steranes and hopanes indicative of a higher molecular weight range of petroleum were almost *** biomarker distribution patterns suggested that the UCM and tricyclic terpanes may be introduced by contamination of diesel fuels or shipping activities and oil seepage elsewhere. The well-developed faults and strike-slip faults in the Mariana subduction zone may serve as passages for the petroleum hydrocarbons. In addition, the relative high contents of even n-alkanes and low Carbon Preference Indices indicated that the n-alkanes were mainly derived from bacteria or algae. For GDGTs, the predominance of GDGT-0 and crenarchaeol, together with low GDGT-0/Crenarchaeol ratios(ranging from0.86 to 1.64), suggests that the GDGTs in samples from the southern Mariana Trench were mainly derived from planktic Thaumarchaeota. However, the high GDGT-0/crenarchaeol ratio(10.5) in sample BC07 suggests that the GDGTs probably were introduced by methanogens in a more anoxic environment. Furthermore, the n-alkanes C_(19)-C_(22) and the n-fatty acids C_(20:0)-C_(22:0) were depleted in^(13)C by 3‰ compared to n-alkanes C_(16)-C_(18) and the n-fatty acids C_(14:0)-C_(18:0), respectively, which was interpreted to result from the preferential reaction of fatty acid fragments with carbon "lighter" terminal carboxyl groups during carbon chain elongation from the precursors to products. The abundance of total alkanes, carboxylic acids, alcohols and total lipids were generally increased along the down-going seaward plate, suggesting the lateral organic matter inputs play an important role in organic matt

关键词： Mariana Trench Lipid biomarkers Organic matter Topography Hydrodynamics

南海北部表层沉积物中甘油二烷基甘油四醚随水深的分布特征

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厦门大学学报（自然科学版） 2018年第6期57卷 778-787页

作者：葛黄敏吴伟艳幸继联上海海洋大学海洋科学学院上海深渊科学工程技术研究中心上海201306 同济大学海洋地质国家重点实验室上海200092

甘油二烷基甘油四醚(glycerol dialkyl glycerol tetraethers,GDGTs)是来源于古菌和细菌的生物标志化合物,广泛应用于海洋科学研究.南海北部有机质来源复杂,解析南海表层沉积物中GDGTs的组成及来源有助于更好地应用GDGTs进行环境重建.... 详细信息

甘油二烷基甘油四醚(glycerol dialkyl glycerol tetraethers,GDGTs)是来源于古菌和细菌的生物标志化合物,广泛应用于海洋科学研究.南海北部有机质来源复杂,解析南海表层沉积物中GDGTs的组成及来源有助于更好地应用GDGTs进行环境重建.通过高效液相色谱-质谱(HPLC-MS)检测了南海北部湾7个表层沉积物样品的脂类组成,结合已发表的南海北部55个表层沉积物的相关数据,详细分析了古菌和细菌GDGTs随水深在南海北部的分布特征,并通过多种指标探讨了GDGTs的来源.结果表明,以200m为界,GDGTs各组分及相关指标均出现显著的分段式分布趋势.古菌GDGTs随水深的分布特征可能是浅水和深水奇古菌类群产生的GDGTs组成不同导致的;细菌GDGTs随水深的分布特征则指示浅水区的GDGTs主要来源于陆源贡献,而深水区则同时包括陆源和水体自生两个来源.

关键词：甘油二烷基甘油四醚古菌细菌表层沉积物水深南海北部

羟基四醚生物标志物指示长江口全新世环境演变的研究

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海洋科学 2024年第7期48卷 22-32页

作者：袁梦肖文杰年小美张卫国葛黄敏许云平上海海洋大学海洋科学与生态环境学院上海201306 Department of Biology HADAL&NordceeUniversity of Southern Denmark5230 Odense MDenmark 华东师范大学河口海岸学国家重点实验室上海200241

长江口作为中国最大的河口,其沉积物记录了东亚季风演化及海陆变迁的丰富信息,是研究环境演化的理想区域。脂类生物标志物具有特定的生物来源,对外部环境变化响应敏感且具有较高的保存潜力,是一类重要的古环境代用指标。本研究在长江口... 详细信息

长江口作为中国最大的河口,其沉积物记录了东亚季风演化及海陆变迁的丰富信息,是研究环境演化的理想区域。脂类生物标志物具有特定的生物来源,对外部环境变化响应敏感且具有较高的保存潜力,是一类重要的古环境代用指标。本研究在长江口横沙岛采集了一根40m长的沉积柱样(HSD22),运用高效液相色谱质谱联用仪分析了微生物细胞膜脂的生物标志物——甘油二烷基甘油四醚(GlycerolDialkyl Glycerol Tetraethers;GDGTs),计算了BIT(Branched Isoprenoid Tetraether)、MI(Methane Index)、RI-OH(the ring index of OH-GDGTs)等分子指标,着重对羟基化GDGTs(OH-GDGTs)指标进行了研究。对比前人研究结果后发现OH-GDGTs具有环境特异性,不同环境中的生物来源不同,导致化合物的变化趋势不同。基于OH-GDGTs温度指标, HSD22的三次沉积相变换分别对应全新世的早期偏冷、中期偏暖、晚期偏冷的气候模式。此外,OH-GDGTs还显示出指示盐度变化和甲烷活动的潜力,OH/ALL%指标可以有效反映河口区域淡水信号的变化,但该指标在非河口区的适用性还有待进一步验证。

关键词：长江口 GDGTs 盐度甲烷

南海晚第四纪陆源沉积:粒度组成、动力控制及反映的东亚季风演化

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第四纪研究 2008年第3期28卷 414-424页

作者：郑洪波陈国成谢昕梅西李建如葛黄敏黄恩清同济大学海洋地质国家重点实验室上海200092

对南海北部MD05—2904孔、西部ND05—2901孔、南部MD05—2897孔的有孔虫氧同位素进行测定，建立了高分辨率的年代地层。对3个孔的陆源碎屑组分的粒度分布进行了测定和主成分因子分析，结果发现，南海北部陆坡（南部陆坡）的陆源碎屑沉... 详细信息

对南海北部MD05—2904孔、西部ND05—2901孔、南部MD05—2897孔的有孔虫氧同位素进行测定，建立了高分辨率的年代地层。对3个孔的陆源碎屑组分的粒度分布进行了测定和主成分因子分析，结果发现，南海北部陆坡（南部陆坡）的陆源碎屑沉积特征主要受单一的因子Fn（Fs）控制，它可以控制62％（59％）的粒度变化特征。与Fn密切相关的粒度组分为1．52～2．92μm和11．8～27．4μm，与Fs相关的粒度组分为〈2．42μm和6．76—14．30μm。南海西部陆坡获得两个主控因子Fwl和Fw2，分别控制46％和32％的粒度变化特征，与Fwl相关的粒度组分为1．26～2．66μm和10．8～14．3μm，与Fw2相关的粒度组分为4．24～7．42μm和30．1～43．7μm。对敏感粒级的变化序列进行分析发现，北部的Fn与海平面升降作用紧密相关，呈现冰期／间冰期旋回尺度的周期性。而南部的Fs呈现高频的岁差周期波动，可能与夏季风演化引起的源区风化、河流搬运等的变化有关。南海西部的陆源沉积物主要来自南海的西南和北部两个地区，分别由东亚夏季风和冬季风驱动的洋流搬运，Fwl和Fw2恰恰代表了这两种动力控制。因此，Fwl和Fw2控制的粒度组成变化间接指示了东亚夏季风和冬季风的演化。研究认为，晚第四纪以来东亚夏季风受控于低纬区的夏季日射量的变化，呈现典型的岁差周期性，而冬季风主要受高纬冰盖变化驱动，呈冰期／间冰期旋回尺度的波动，这反映了东亚季风演化的双重驱动机制。

关键词：南海第四纪陆源碎屑粒度东亚季风演化

A New Mechanism Based on Similar Clouds Watermark for Database’s Information Security

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Wuhan University Journal of Natural Sciences 2004年第4期9卷 415-419页

作者： huangmin CAOJia-heng PENGZhi-yong ZENGCheng SchoolofComputer WuhanUniversityWuhan430072HubeiChina TheStateKeyLaboratoryofSoftwareEngineering WuhanUniversityWuhan430072HubeiChina

This paper studies the digit watermark technology of numeric attributes in relational database for database's information security. It proposes a new mechanism based on similar clouds watermark and gives the concept of similar clouds. The algorithm SCWA that can insert the meaning watermark and detect it from the watermarked data is described. The mechanism can effectively and broadly scatter the watermark in the database; therefore the watermark is very robust. Key words copyright protection - digit watermark - similar clouds - clouds model CLC number TP 311. 52 Foundation item: Supported by the National Natural Science Foundation of China (60273072) and 863 Hi-technique Research (2002AA4Z3450)Biography: HUANG Min(1979-), female, Ph. D candidate, research direction: database's information security

关键词： copyright protection digit watermark similar clouds clouds model