1) fluvial deposit
河流沉积
1.
The environmental and fluvial deposits change indexes are related to the grain size,pollen analysis,with the AMS14C dating.
对长白山松江水文站阶地剖面的粒度参数和孢粉进行分析,结合AMS14C测年数据并与历史记录相校验,重建该区的气候环境演化特点与河流沉积物的相变过程。
2) fluvial deposits
河流沉积
1.
Studies of fluvial deposits concerning both climate and sea level changes as well as sequence stratigraphy may become increasingly impotant in this millennium.
河流沉积地层是古代陆相沉积和大陆边缘沉积的重要组成部分。
3) river sediment
河流沉积物
1.
Mercury,arsenic and antimony are common items in soil and river sediment samples in environment monitoring.
Hg、As、Sb是土壤和河流沉积物的常规测定项目。
2.
The Korean r iver sediments have much lower TIC,C a and carbona te contents than Chinese river sediments,whereas the Changjiang sediment is cha racterized by hi gh Ti content and the Huanghe sediment by h igh Ca,Na and car bonate contents.
韩国河流沉积物中Ca及碳酸盐含量显著低于长江和黄河,而其他元素含量则在二者之间;黄河沉积物以总无机碳(TIC)、Na和Ca含量高为特征,而长江沉积物则显著富集Ti和P。
3.
In terms of the geochemical distribution and seasonal variation of N, P and trace heavymetals in the sediments, Brisbane, Australia, this paper discusses some research methods applica-ble to environmental geochemistry of river sediments, and the mechanism of river pollution, pro-viding the important scientific basis for river evaluation and environmental arrangement control.
本文通过对澳洲普洛斯本河现代沉积物的粒度、营养元素和微量重金属元素地球化学分布及其季节性差异的研究，探索了河流沉积物环境地球化学的研究方法，阐述了河流现代沉积物的污染现状和规律，为河流的评价和环境治理等提供了重要的科学依据。
4) river sediments
河流沉积物
1.
By analyzing the mercury contained in the waters,soil,propagations and sediments near the gold mine,on the upper Songhua River,which is along the east of Jilin Province,we have founded that the mercury pollution in river sediments was very serious.
采样分析了吉林省东部松花江上游金矿开采区及其附近水、土壤、动植物及河流沉积物样品中汞的含量,发现河流沉积物中汞的污染相当严重;受其影响当地的植物和两栖类动物———中国林蛙体内总汞和甲基汞含量也明显高于对照组。
2.
There is a variety of environmental information contained in the river sediments.
河流沉积物中蕴含丰富的环境信息。
5) sediment
[英]['sedɪmənt] [美]['sɛdəmənt]
河流沉积物
1.
Chemical forms and ecological risks of heavy metals in river sediment at carbonatite mining area.;
碳酸盐岩矿区河流沉积物中重金属的形态特征及潜在生态风险
2.
Samples of polluted soil,unpolluted soil,mine tailing and river sediments were analyzed for pH,S content,heavy metals and rare earth elements in surface soil and soil depth profiles to assess the level of soil pollution.
为此,对矿区下游污染区和非污染区的农田土壤、尾砂和河流沉积物进行了系统调查和研究。
6) fluvial sedimentology
河流沉积学
1.
Progress in Chinese fluvial sedimentology, beginning with the initial issue of ACTA SEDIMENTOLOGICA SINICA in 1983, have been reviewed respectively from the aspects of classification of stream, modern present deposits investigation, fluvial facies and depositional models, fluvial deposits sequence stratigraphy, fluvial architecture element analysis and fluvial sedimentological simulation.
从河型及其分类研究、现代河流沉积调查、河流沉积相与相模式研究、河流相地层的层序地层学研究、河流沉积砂体建筑结构精细解剖、河流沉积模拟研究等六个方面回顾了自《沉积学报》创刊以来 2 0年中国河流沉积学研究的主要进展 ,指出我国的河流沉积学取得了许多富有特色的研究成果 ,主要表现在网状河概念的引入与普及、建筑结构要素分析法的推广、界面层次的划分和及其概念的扩张、岩石相类型和岩石相组合概念的应用、河流砂体露头调查的方法与技术、沉积构造的沉积动力学解释、层序地层学在河流沉积研究中的应用、河流沉积过程的模拟实验、河流相储层的建模技术等方面。
补充资料：被污染的河流
被污染的河流
叱自 被污染的河流《自然生物之旅》
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条