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沉积

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Geothermal gradients of the basins in the eastern of Algin Rift were higher than those of the basins in western of Algin Rift in Late Mesozoic,and tectonic activities were stronger,indicating a strong regional tectonic thermal event.The basins on the western of Algin Rift were all compressive depressions,their geothermal gradients were lower.

中生代晚期阿尔金断裂以东沉积盆地地温梯度普遍高于阿尔金断裂以西沉积盆地,构造活动性强,强烈的构造运动引发了岩浆活动及地壳深部热活动,表明存在一期强烈的具有区域规模的构造热事件;阿尔金断裂以西为挤压坳陷型盆地,地温梯度普遍较低。

The oscillation of the base level results in their relative variation of accommodation space and sedimentary alimentation. The variation rates of them have also changed, then lead to the difference of facies sequence, the degree of stratigraphic preservation and stacking pattern at the same territory in different ages, or the difference of phase area at different territories at the same age.

由於基准面的升降变化引起了可容纳空间与沉积物供给量的相对变化,相对应的可容纳空间变化率和沉积物供给率同时也发生变化,因而导致了在不同时期同一地区的地层在相序、保存程度和叠加样式上的差异,以及在同一时期内不同地区在相域上的差别。

The major research subject in the paper are multiple aliquot OSL dating method of the fine grain (4-11μm) fractions and application of the method for OSL dating of loess and water-laid sediments from North China.

本文的主要研究内容为细颗粒多测片的沉积物光释光测年方法及其应用于中国北方黄土及水沉积物的年龄测定和年代学研究。

The Jurassic in study region can be divided into alluvial fan, river, lake and delta sedimentary systems.

将研究区内的侏罗系沉积划分为冲积扇、河流、湖泊和三角洲沉积体系。

The study of ocean color is an important part of the ocean research. The suspended matter is the major resource for the alongshore sediments and its distribution character and density have much relate to the flux balance of the sediments in the estuary.

海洋水色的研究是海洋研究的重要一部分,对于大陆边缘及近岸区域来说,陆源悬浮体是边缘海海底沉积物的主要来源;同时,其分布特征及数量变化与河口附近海域海底沉积物的通量平衡有很大的关系,因此,关于悬浮体的调查研究是十分必要的。

Based on the sediment and topographic data observed on a beach between headlands along the eastern Guangdong coast in July 1999, the probability model of sediment transport was used to explore the alongshore beach sediment transport trend.

根据1999年7月实测的粤东岬间海滩沉积与地形变化资料,采用沉积物输运概率模式对海滩沿岸泥沙运移趋势进行探讨。

The content of total Phosphorus was very high, with the average of 2.63mg/g, while the nitrite was very low and there was no relative chemic counterbalance among nitrate, nitrite and ammoniate, because the inorganic nitrogen circle was also affected by organic nitrogen in water and sediments.

以滇池马村湾和海东湾为研究对象,对其沉积物-间隙水-上覆水三界面中的磷、氮形态作研究,其中钙结合态磷占的比例最大,其次是有机/细菌聚合态磷和残渣磷;总氮含量很高,平均值为2.63 mg/g,而亚硝酸盐氮含量很低,其它三种无机氮形态(硝酸盐氮、亚硝酸盐氮和氨氮)之间并不存在恒定的化学计量关系,这主要是无机氮循环还受水体和沉积物中有机氮的影响。

Because of the high deposition rates attainable, typically at least 130 ANGSTROM /second, the process is suitable for depositing coatings of substantial thickness on a moving ribbon of float glass during the glass production process.

因为可获得高的沉积速度,一般至少是130埃/秒,所以该方法适合于在玻璃生产工艺中在移动的浮法玻璃带上沉积相当厚的涂层。

Belongs to Ciying formation, which mainly is quartz sandstone, arkose, sandstone, siltstone, silty mudstone, sericite slate and intercalated with tuff and silicalite.

地壳抬升运动,使沉积在海洋或湖泊中的沉积岩也随之抬升,抬升的过程接受流水作用的下渗和侵蚀,使沉积台地更易解体,有利于柱体的形成。

It is mainly used in aquaculture in industry and keep fowls.amoung the vast number of salt lakes in Xin Jiang, there are rich Anemia resoures. Therefore, Artemia is great important salt lakes resources.

研究表明,盐湖卤水中卤虫的大量存在,能够起到净化卤水的作用,并使盐类沉积的纯度增高,同时对盐类沉积速度也起到了重要作用。

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