The Study of Exotic Dinoflagellate in Sea Area

本文对厦门近岸海域水体中的甲藻，表层及柱状沉积物中的甲藻孢囊进行了研究；结合历史研究资料初步查明了厦门近岸海域外来甲藻的种类、丰度、分布规律，并根据对柱状沉积物的210Pb测年，对外来甲藻的传入年代进行了标定。并对进入厦门港的国内外多艘船舶的压舱水和水舱中沉泥进行了样品采集，测定了压舱水的主要生态因子，对采集样品中的甲藻及孢囊进行鉴定和统计，来分析船舶压舱水在外来甲藻入侵途径中的作用以及造成外来甲藻新入侵的可能性。1、分别于2003年4月和2004年7月在厦门近岸海域进行了甲藻样品的采集、鉴定和计数，共发现15属45种甲藻，包括8种有毒种类和3种有害种类。2、水体中甲藻的分布于厦门西海域和九龙...The dinoflagellate cells in water column and the dinoflagellate cysts in marine sediment and XD-2 Core are studied in sea area around Xiamen island. According to the formerly datas in Xiamen Bay and the distribution of 210Pb in sediment core, we find out the species composition, the density, the distribution characteristic and the invasion age of exotic dinoflagellate in sea area around Xiamen ...学位：理学硕士院系专业：海洋与环境学院海洋学系_海洋地质学号：20022702

Research status and perspective of contour current deposit

本文根据国内外等深流及其沉积的研究成果,概述了它们的研究进展,且详细阐述了等深流沉积特征和沉积类型,并指出等深岩丘的发现是该领域最为重要、最具特色的突出成果以及等深流沉积研究的油气勘探意义.虽然随着深海钻探计划和大洋钻探项目的开展,等深流沉积研究取得了较大进展,但现代等深流沉积和古代等深流沉积的研究在一定程度上发展尚不平衡,仍存在着较多问题,尤其是在古代等深流沉积研究方面显得更为薄弱.最为重要的是,等深流沉积的识别是该领域研究的最大难题.因此,在其未来研究上,应注意运用地震波识别、遥感等现代科技调查手段,进行多学科综合研究,尽快建立一套完善的识别标志,如沉积学标志、古生物标志等,以促使其逐渐成为海洋沉积学中一个更为完善的研究领域.This paper briefly introduces the envolvement of contour current and contour current deposits. Their sedimentary characters and types are expatiated.It is pointed out that the discovery of contour drifts is the most important anddistinctive achievement in this field and the contour current deposit study is significant in oil and gas exploration. Although contour current deposit study has made great progress along with the development of DSDP and of ODP,the researches on modern and ancient contour current deposits are imbalanced to a certain extent and have many problems, especially in the study of ancient contour currentdeposit. Above all, the discrimination of contour current deposits is the most crucial problem. Therefore in the future, we should synthesize multidisciplinaryapproaches with identification of seismic wave, remote sensing,etc., and establish some effective discriminating indicators such as sedimentary markings and paleontological markings, so as to advance its research ulteriorly and make it to be a more perfect research field in the marine sedimentology

A review on formation mechanism and resources evaluation of marine gas hydrate

本文综述了近年来国内外关于天然气水合物成矿机理研究的新进展,阐明了作为一种非常规的天然气矿藏,其形成和稳定存在除了需要特定的温、压条件外,更需要合适的成矿地质条件,包括沉积构造环境、充足的气源、有效的运移通道、有效的储集层和保存条件等.文中还介绍了天然气水合物资源评价方法及国外研究者对全球气体水合物中甲烷量的估算值,由于其结果相差几个数量级,表明目前还没有成熟的天然气水合物资源定量评价方法.The current advance in the studies on the formation mechanism of gas hydrate is reviewed in the paper. The gas hydrate is an unconventional natural gas mineral, whose formation and distribution depend upon the specific temperatureand pressure conditions, and also the proper mineralized geological conditions,including sedimentary and structural environments, sufficient gas sources, valid migration channels, effective reservoirs and preserved conditions, et al.Theevaluation method of gas hydrate resources and some estimated values of methanein gas hydrate in the world by foreign researchers are also introduced. The difference of several magnitude grades for those estimated values indicates that there is no reliable quantitative evaluation method of gas hydrate resources as yet

The characteristics of heavy minerals composition and distribution in surface sediment from the Xinghua Bay of Fujian

对兴化湾17个站位表层沉积物中63～125μm粒级重矿物组分、含量、组合及分布特征进行了分析研究,并探讨了泥沙物质来源及重矿物与沉积环境的关系.结果表明,兴化湾重矿物平均含量(质量分数)为12 08%,高出其邻近的湄州湾(5 67%)6个百分点;重矿物共计37种,以磁铁矿、角闪石、绿帘石、钛铁矿、赤铁矿、褐铁矿、锆石为主.矿物种类揭示该海湾的泥沙主要来源于湾顶河流输入和周边陆域及湾内岛屿基岩风化侵蚀产物,而湾口以外海域的输入物质较少;依据主要重矿物含量和分布特征,将兴化湾划分为4个矿物组合区,各区重矿物组合类型不仅与物质来源有关,而且受水动力条件和沉积环境制约.The composition, assemblage and distribution characteristics of heavy minerals from 63 to 125 μm grain-sizes in surface sediment from the Xinghua Bay (17 stations) are studied. And then, matter source of silt and relationship of heavy minerals with sedimentary environment are discussed. The results show that there are 37 kinds of heavy minerals and the average content of them is 12.08% which exceeds 6% compared with the Meizhou Bay ((5.67%)). The dominant minerals are magnetite, hornblende, epidote, ilmenite, hematite, limonite, zircon and so on. Mineral kinds reveal that silt in this bay mainly comes from fluvial input and eroded products of bedrock in circumjacent land and islands of the Xinghua Bay , however, the matter origin from outside area of this bay is less. The Xinghua Bay can be divided into 4 mineral assemblage zones based on heavy mineral contents and distribution characteristics, which are not only related to matter source, but also controlled by hydrodynamic condition and sedimentary environment in the Xinghua Bay.福建省自然科学基金资助项目(D9910006)

体操运动员比赛时尿内儿茶酚胺的排出量

测量了37名体操运动员在比赛前和训练前的血压和脉率,并测了25名运动员赛前、赛后和训练后尿内儿茶酚胺的排出量。结果发现男子组赛前舒张压比训练前为高。比赛后尿内去甲肾上腺素排出量男女组均显著高于比赛前,男子组训练后尿内去甲肾上腺素排出量比比赛后略低,而女子组则比比赛后有明显降低。说明男子组去甲肾上腺素的排出增加与情绪的关系较少,而女子组则与情绪关系较密切。赛后肾上腺素排出量男女组均有明显增加,训练后排出量均比比赛后排出量低。女子组在赛前、赛后、训练后肾上腺素排出量均比男子组为低,但差异未达显著水平。比赛中发挥好的肾上腺素排出量倾向较低。</p

香溪河流域不同介质中碳、氮、磷的分布特征及相关性研究

为了解香溪河流域碳、氮、磷的分布情况及水、陆生态系统中这些生源要素间的相互关系,对流域内河岸带土壤、河流水体及沉积物中总有机碳(TOC)、总氮(TN)、总磷(TP)含量进行调查,分析它们在流域内的分布特点,探讨各要素在3种介质间的相关性及随河流级别的变化规律。研究发现,超过60%的样点土壤中TOC、TN含量处于“较丰富”或“丰富”等级,耕地附近样点的TOC、TN和磷矿区附近样点的TP普遍偏高。河流水体及沉积物中各要素的含量都与土壤中的含量紧密相关,但水、陆介质间TP的相关性较TOC、TN强。低级别河流样点土壤中TOC、TN、C/P、N/P值和沉积物中C/P及N/P值整体较高级别河流样点高。结果表明:以磷矿开发和农业施肥为代表的人类活动,对香溪河流域内生源要素的含量及分布产生了显著影响;水体中P元素含量与陆源关系最强,在水体污染控制中应予以重视

香溪河流域不同介质中碳、氮、磷的分布特征及相关性研究

为了解香溪河流域碳、氮、磷的分布情况及水、陆生态系统中这些生源要素间的相互关系,对流域内河岸带土壤、河流水体及沉积物中总有机碳(TOC)、总氮(TN)、总磷(TP)含量进行调查,分析它们在流域内的分布特点,探讨各要素在3种介质间的相关性及随河流级别的变化规律。研究发现,超过60%的样点土壤中TOC、TN含量处于“较丰富”或“丰富”等级,耕地附近样点的TOC、TN和磷矿区附近样点的TP普遍偏高。河流水体及沉积物中各要素的含量都与土壤中的含量紧密相关,但水、陆介质间TP的相关性较TOC、TN强。低级别河流样点土壤中TOC、TN、C/P、N/P值和沉积物中C/P及N/P值整体较高级别河流样点高。结果表明:以磷矿开发和农业施肥为代表的人类活动,对香溪河流域内生源要素的含量及分布产生了显著影响;水体中P元素含量与陆源关系最强,在水体污染控制中应予以重视

THE RESEARCH OF HEAVY MINERALS IN THE SEDIMENT OF SURFACE LAYER IN THE SEA AREA AROUND HAICANG

对厦门海沧邻近海域表层沉积物中的重矿物 (0.063～0.125mm粒级 )进行了分析和研究 ,结果表明该粒级的重矿物共计49种 ,其优势和特征矿物为磁铁矿、赤铁矿、褐铁矿、绿帘石、钛铁矿、角闪石、锆石、红柱石等 ;重矿物的平均质量分数为9.56 % ;根据重矿物的分布和含量 ,并结合主要标志矿物的颗粒百分含量和分布特征 ,将该海域划分为5个矿物组合区 ,根据各区的矿物组合类型分析了该海域的物质来源及影响重矿物分布和组合的因素 ,进而探讨了九龙江河口湾和厦门西港海湾的沉积环境。Heavy minerals sized between0.063-0.125mm present in the surface sediment in the sea area around Haicang(Xiamen city)were analyzed and studied.The results show there are49kinds of heavy minerals among which hematite,magnetite,epidote,ilmenite,hornblende,zircon and andalusite are the most prevalent and characteristic.Their average content was9.56%;5mineral assemblage zones were located according to heavy mineral distribution and content.Hence,the factor behind mineral zonation,provenance and sedimentogical environment deature in the Jiulong river estuary and Xiamen west bay are discussed.福建省自然科学基金项目D9910006

磺化酞菁铝修饰氨基功能化磁性材料及其光敏化降解双酚A

采用溶剂热法制备氨基功能化Fe_3O_4磁性材料(NH_2@nFe_3O_4),通过浸渍法将磺化酞菁铝(AlPcS)负载于NH_2@nFe_3O_4。材料的傅立叶红外、漫反射、X射线衍射、扫描电镜、透射电镜、振动磁强计等表征表明:AlPcS主要通过静电作用与NH_2@nFe_3O_4结合,AlPcS-NH_2@nFe_3O_4平均粒径为127 nm,饱和磁化强度为75.3 emu·g-1。在可见光和空气作用下,该功能化磁性材料对降解弱碱性水溶液中环境内分泌干扰物双酚A(BPA)具有较高的光敏化活性。随着AlPcS负载量的增加活性呈先升高后下降的趋势,负载量为3.4%(质量分数)的复合材料性能最佳,反应60 min后,20.0 mg·L-1BPA降解率为96%;循环使用10次,BPA降解率仍保持93%以上。通过NaN3猝灭实验探讨了反应机理,证实1O2是光敏化过程中的主要活性物种