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- ENVIRONMENTAL MAGNETISM OF MARINE SEDIMENTS FROM ANTARCTICA SINCE 15kaB.P. 南极15ka以来海洋沉积物的环境磁学研究
- In interglacial periods, such as at the present time,global sea level rose to its present level and higher, and marine sediments were deposited. 几次间冰期间(现时也正值间冰期),全球的海平面升至目前及更高的水平,并沉积了海洋沉积物。
- Authigenic pyrite is the normal product of anoxic sulfate reduction in marine sediments. 自生黄铁矿是海洋沉积物缺氧硫酸盐还原过程的主要产物。
- In interglacial periods,such as at the present time,global sea level rose to its present level and higher,and marine sediments were deposited. 几次间冰期间(现时也正值间冰期),全球的海平面升至目前及更高的水平,并沉积了海洋沉积物。
- Biomarkers in marine sediments record geological changes of paleoclimate and pa-leooceanography at range of spatical and temporal scales. 海洋沉积中的生物标志化合物记录了不同时空尺度下海洋与气候变迁的历史。
- Triassic strata with more than 10000 m in thickness are dominated by marine sediments in northern Three-River area of eastern Tibet. 摘要位于西藏东部的三江地区北部累计厚度达10000馀米的三叠系以海相沈积为主,由碎屑岩、碳酸盐岩和火山岩的一种或两种占优势的组分构成。
- Natural gas hydrates in nature exist mainly in marine.The natural conditions of marine sediments are the base of natural gas hydrates formation. 自然界中的天然气水合物资源主要存在于海洋中,海底的自然条件是形成天然气水合物的基础。
- Molecular thermometer, known as U k 37 index, is used to estimate sea surface temperature (SST) based on unsaturation ration of long chain ketone in marine sediments. “分子温度计”是通过有机地球化学方法获得的沉积物中烯酮化合物的相对丰度来估算古海水表面温度的。
- A luminous bacterium, D40, was isolated from the marine sediment samples collected in Qingdao offshore. 从青岛近海海洋沉积物样品中分离出一株海洋发光细菌,命名为D40。
- The formation of sulfide in the marine sediments and the eff ect of the biodeposition of cultured shellfish on the sulfide of marine sediment s are also discussed. 描述了海洋及沉积物中硫的主要形态、分布及无机硫化物的形成机理。
- Data include foraminifera counts and sea surface temperature estimates derived from marine sediment cores from the north Atlantic Ocean. 数据来自于北大西洋海底沉积物的钻芯,包括有孔虫类计算和海面温度估计。
- Thirty species of dinoflagellate cysts in 15 genus are identified from KMZK5 Core samples of recent marine sediment at the Luoyuan Bay mouth, Fujian. 摘要通过对福建罗源湾口海域KMZK5柱状沉积物中甲藻孢囊的分析,共鉴定出15属30种甲藻孢囊。
- Gas hydrate deposited in marine sediment with low temperature and highpressure is a very important marine energy in the future. 摘要除地球物理方法外,地球化学方法在天然气水合物的勘探和开发中也发挥着越来越重要的作用。
- Trench excavation by grab dredger and install a submarine water main of 1200 mm diameter and a length of 2.1 km. The total dredged volume of marine sediment is about 362,000 m3. 工程主要涉及以抓斗挖掘管槽,敷设一条直径1200毫米和长度2.;1公里的海底供水管道。挖出的沉积物总体积估计约达362;000立方米。
- Effects of florfenicol on the activities of nitrate reductase,nitrite reductase and alkaline phosphatase in marine sediment were studied in laboratory by simulation experiment. 通过室内模拟实验研究了氟苯尼考对海洋沉积物中硝酸盐还原酶、亚硝酸盐还原酶、碱性磷酸酶活性的影响。
- A simple and rapid method is proposed for the determination of mercury in marine sediment samples by atomic fluorescence spectrometry using a slurry technique. 研究了一种使用悬浮液进样原子荧光光谱法测定海洋沉积物中痕量汞的快速简便的方法。
- From the Late Carboniferous to the end of Permian, the spores of the Shishuyuan trough were from the North China Province, and the marine sediments were absent in the southern part of EQM. 晚石炭世至二叠纪末,柿树园海槽的孢子见于华北生物省,东秦岭南部缺乏海相沉积。
- Marine sediments on the continental slope of the NE South China Sea have appropriate thickness, methane-generating potential, and occur in a suitable pressure temperature regime to host gas hydrate. 摘要南中国海东北部大陆斜坡带上的海相沈积有适当的沈积厚度,处于适宜形成气水合物的温-压域内,有一定的甲烷生成潜力。
- The Neogene depression sequence, which mainly consists of marine sediments, developed in the downwarping stage of the basin.Its subsidence center shifts to the southwest part of the research area. 新近纪坳陷层序形成于盆地的坳陷期,主要以海相沉积为主,沉降中心转移到工区的东南部。
- The study method of marine sediment quality criteria is described and the discussion is centred on equilibrium partitioning method widely used in defining the contamination criteria. 简要介绍了海洋沉积物质量基准的研究方法,重点讨论了平衡分配法在确定沉积物基准研究中的广泛用途。
