粘土沉积分布在古代的火山表面和坑坑洼洼的高原地区,其中一些显然是最近才由于侵蚀而暴露出来的。
The clay deposits are scattered all over, in ancient volcanic surfaces and heavily cratered highland regions, some of which have apparently been exposed by erosion only recently.
海盆区粘土沉积物中的放射虫化石丰度高且分异度高。
The abundance and diversity of radiolaria fossils are high in the clay of basin.
随着干冷气候的减弱,长江三角洲一带出现硬粘土沉积。
Then, with the withering of dry and cold climate, there appeared stiff clay sediment in the delta of the Changjiang River.
新疆罗布泊罗北洼地主要有粉砂、粘土沉积,硫酸盐沉积和氯化物沉积。
There are mainly three kinds of sedimentary minerals: fine sand, sulphates, and chlorides.
通过试验研究连云港海相软土的沉积化学特征,分析了该海相软粘土沉积化学与基本土性间的关系。
In this study, the depositional chemistry of Lianyungang marine clay is investigated by the laboratory tests, and the correlations of depositional chemistry and geotechnical properties are discussed.
其他可靠的证据表明,边界粘土的沉积不可能需要100万年。
Other reliable evidence suggests that the deposition of the boundary clay could not have taken one million years.
回收的盐和在海底沉积的粘土矿物中所含的盐是无法准确计算的。
There was no way to account accurately by recycled salt and salt incorporated into clay mineral deposited on the sea floors.
这些沉积物富含粘土,粘土是由水流将岩石侵蚀成细小的微粒所形成的。
The sediments are rich in clay, which forms when water weathers rocks into fine-grained particles.
河道沉积由砂,粉沙和粘土组成,充填于河流切割的河谷之中。
Channel deposits consisting of sand silt and clay fill the valleys cut by a river system.
细粒粘土可以沉积在天然堤外侧的隐蔽湾中。
Fine - grained clay may settle out in the sheltered bays on the outer sides of the levees.
河道沉积由砂,粉沙和粘土组成,充填于河流切割的河谷之中。
Channel deposits, consisting of sand, silt and clay, fill the valleys cut by a river system.
软地层、粘地层、膨胀性粘土地层的总称术语,通常在海洋钻井时的表层钻遇,或者在近海陆地钻井时的沉积盆地时钻遇。
A generic term for soft, sticky, swelling clay formations that are frequently encountered in surface holes offshore or in sedimentary basins onshore near seas.
天然沉积粘土都具有一定的结构性(组构和胶结)和结构强度。
The clays from natural sedimentation have always the structure (fabric and bond) and structure strength.
通过确定在一段给定时间内掉落在地球上的这种陨石的数量,科学家们就可以确定沉积隔层粘土的形成时间。
By measuring how many of these meteorites fall to Earth over a given period of time, scientists can estimate how long it might have taken to deposit the observed amount of Ir in the boundary clay.
在黄河源区支流日玛曲河谷发现第四纪湖相沉积,以含砾粉砂、粉砂、粘土互层组合为特征,形成河流的第一阶地基座。
A group of Quaternary gyttjor are discovered in Rimaqu basin in the Yellow River source area which formed the first terrace foundation, included gravel aleurite, aleurite and clay layer.
论文介绍了海洋沉积土的来源与分布情况,以及淤泥质粘土的工程性质。
The source and distribution of marine sedimentary soil and the engineering property of silt clay are introduced.
研究结果表明,该蒙脱石粘土岩系正常搬运沉积成生类型,具有开发利用价值。
The research results show that the clay stone is a type of normal sedimentary genesis and is good in quality to develop and utilize for industry.
这种变化反映了埋藏成岩作用对原来沉积的粘土矿物组合的影响。
These changes reflect the effects of burial diagenesis on the originally deposited clay mineral assemblage.
影响储层储集性能的主要因素:(1)沉积环境,(2)古气候,(3)成岩作用,(4)构造运动,(5)粘土矿物。
The factors affecting the property of reservoir were as follows. (1) environment of sedimentary, (2) paleoclimate, (3) diagenesis, (4) tectonic movement, (5) clay minerals.
除沉积岩斜坡含粘土矿物外,76%以上的斜坡岩石造岩矿物还可形成次生粘土矿物。
Many sedimentary rocks contain clay minerals and 76% of forming-rock minerals of slope rocks can produce clay minerals during the weathering processes.
细粒粘土可以沉积在天然堤外侧的隐蔽湾中。
Fine-grained clay may settle out in the sheltered bays on the outer sides of the levees.
然而其他可靠的证据则表明沉积这层粘土可能不需要一百万年。
However, other reliable evidence suggests that the deposition of the boundary clay could not have taken one million years.
在除命名为砾、砂、粉砂和粘土之外的其它沉积物类型上,都已发现有红树植物生长分布。
Mangrove has been found growing on the flats of all sediment types except gravel, sand, silt and clay.
不同母质发育的土壤相比,以石灰岩风化物发育的水稻土肥力水平较河流沉积物和第四纪红色粘土发育的水稻土高。
Among them the paddy soil developed from the weathering product of limestone has much higher nutrient contents than the paddy soils developed from river alluvium and Quaternary Red Clay does.
通过对沉积岩中沉积物的粘土矿物、气候指数、氧同位素测温等研究,获得关于气候干湿冷暖的信息。
By the research of the clay mineral and climatic index of the sediment in the sedimentary rock and its temperature measured by oxygen isotope, we can get different climate information.
沉积物粒度组成以粉砂为主,粘土和粉砂的含量较少。其中粉砂的平均含量为83.64%,粘土的平均含量为9.69%,砂的平均含量为6.67%。
The granularity compositions of sediments are mainly silts, whose average percentages is 83.64%. The percentages of sands and clays are 6.67% and 9.69% respectively.
在近海沉积物中广泛存在一种以粉质砂为主的轻亚粘土(中、低塑性少粘土),它常常是近海工程建筑物的主要持力层。
In offshore soils there exists widely a kind of soil which mainly consists of silt and sand except clay with low plasticity.
依据南黄海沉积物中粘土矿物和地球化学等方面的资料,对南黄海沉积物的物质来源及运移作了深入的探讨。
Base on the clay minerals and geochemical data for the southern Yellow sea, the material sources and transportation of sediments are researched in this paper.
静水实验中沉积物向上覆水体盐分释放通量符合负的幂指数形式,并按粉质粘土、中细砂、泥质粉砂顺序递减;
In column experiment the salt release flux from different sediment can be expressed as a negative exponential function and decrease in the order of silty clay, medium-fine sand and pelitic silt.
静水实验中沉积物向上覆水体盐分释放通量符合负的幂指数形式,并按粉质粘土、中细砂、泥质粉砂顺序递减;
In column experiment the salt release flux from different sediment can be expressed as a negative exponential function and decrease in the order of silty clay, medium-fine sand and pelitic silt.
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