The relationship of particle size and chemical composition between atmospheric mineral particles and deep-sea sediment particles

本文利用扫描电子显微镜（SEM）、能谱仪（EDS）和自动个体特征分析仪（Automated Individual Features Analyzer）对大气、水体和深海沉积物中的颗粒物样品进行了分析，主要内容如下：（1）大气气溶胶样品的采集采用步进式采样器，该采样器可以在一定时间间隔内自动采样。确定了该装置的适宜流速为1 - 1/min。1990-1992年期间，我们还在独联体的札幌和海参崴用大容量空气采样器收集了两年的气溶胶样品。（2）1990年和1991年两次考察在日本海海盆（水深3600 m）采集了深海沉积物岩心样品。同时，我们试图收集近底层海水中的悬浮颗粒。(3)碳包覆处理后，颗粒样品进行了分析，其特征和化学组成 ...更多信息 通过SEM和EDS系统对组件进行分析。用标准玻璃和标准岩石标定的10个主量元素，该系统的元素分析精度在10%以内。(4)通过对大气气溶胶的特征分析和元素分析，可以将大气气溶胶分为几类，它们富含硅铝、硅、铁和一些微量元素。颗粒尺寸在白天趋于较大，而在夜间趋于较小。(5)通过对深海沉积物的分析，从300个单独的颗粒分析中获得了3 μ m的waddel直径。如何计算针状或不规则形状颗粒的尺寸仍然是一个难题。(6)从对气溶胶污染成分的分析来看，来自人为来源的细颗粒物被输送了数百公里。这些粒子的输运过程与矿物气溶胶的输运过程非常相似，这与Kosa现象有关。(7)将深海沉积物岩心切割成几毫米厚，然后用扫描电镜和能谱仪进行分析。Fe和Mn的浓度在不同深度处出现峰，用常规方法无法分离。少

We have analyzed the samples of particles existing in the atmosphere, in the water column, and in the deep-sea sediments by using the Scanning Electric Microscope (SEM), Energy Dispersive X-ray Spectrometry (EDS), and Automated Individual Feature Analyzer.We summarized as follows :(1) Atmospheric aerosols were collected by a step sampler which can sample automatically with certain time interval. We obtained the suitable flow rate of 1 -1/min for this equipment. We also collected aerosol samples by high volume air samplers in Sapporo and Vladivostok, CIS for two years during 1990-1992. The series of 24-hours sample was obtained during the period from April to May, 1991(2) Deep-sea sediment core samples were obtained from the basin of the Japan Sea (water depth 3600m) during the two cruises in 1990 and 1991. At the same time, we attempt to collect suspended particles in near bottom seawater.(3) After carbon coating treatment, particle samples were analyzed for their features and chemical … More components by the SEM and EDS system. We obtained that the precision of elemental analysis by this system was within 10% for 10 major elements calibrated by the standard glasses and rocks.(4) From the analysis of feature and elemental analysis, atmospheric aerosols can be categorized with several groups which are enriched with SI-AI, Si, Fe and some trace elements. The particle size tends to be larger during the day time, and to be smaller during the night.(5) From the analysis of deep-sea sediments, the waddel diameter of 3mum was obtained from the 300 individual particle analysis. There still remain the problems that how to calculate the size of needle or irregular shape particles.(6) From the analysis of pollution components for aerosols, fine particles from anthropogenic sources are transported several hundreds kilometers. Transport pass of these particles is very similar to that of mineral aerosols which is related to Kosa phenomena.(7) The deep-sea sediment cores were cut with a several millimeter thickness, then analyzed with the SEM and the EDS. The peaks of Fe and Mn concentrations were observed at different depth which was not able to separate with the common methods. Less