河漫滩

It is seldom to reveal the change law of water environment during history through viewed from floodplain deposits.

长期以来，人们对渭河的水环境问题已有关注，但研究大多集中在对较大范围的区域地貌和历史时期河道变迁的研究中，通过河漫滩沉积物来揭示历史时期渭河水环境演变规律的研究还少见报道。

The Monsizu site was constructed at a depth of 2 m in soft soil floodplain deposits.

Monsizu 台站建在2米深的河漫滩沉积软土层处。

On the basis of the field investigation, grain size analyses for 147 samptes from Mafang sections in valley flat in Gaoling and the historical record age material, flood and precipitation change between 1400 and 1100 years were studied.

根据高陵渭河马坊滩河漫滩沉积剖面中的沉积层测量和147个样品的粒度分析和历史记载的年代资料，研究了西安高陵渭河距今1400～1100年间洪水和降雨量变化。

On the basis of the field investigation, grain size analyses for 147 samples from Mafang sections in valley flat in Gaoling and the historical record age material, flood and precipitation change between 1400 and 1100 years were studied.

根据高陵渭河马坊滩河漫滩沉积剖面中的沉积层测量和147个样品的粒度分析和历史记载的年代资料，研究了西安高陵渭河距今1400~1100年间洪水和降雨量变化。

The grain composition and the grain size parameter show that there are at least 9 sedimentary layers of different grain composition in the section with 3.5 m thick in valley flat at Mafangtan in Gaoling, which indicates 9 great flood stages.

粒度成分和粒度参数资料指示，高陵马坊滩厚约3.5m的河漫滩沉积剖面至少包括了9个颗粒成分不同的沉积层，代表了9个大洪水阶段；其中厚度大、粒度粗的第2、4、6、8层形成时的洪水规模比厚度小、粒度细的第1、3、5、7、9层形成时要明显大。

The materials obtained from two profiles in Weihe floodplain in Gaoling Xi'an show that the sediment developed well and grain size changed greatly, which indicated the flood change of Weihe River clearly.

西安高陵渭河河漫滩两个沉积剖面的研究表明，近120年来渭河河漫滩沉积物发育好，粒度变化明显，能够清楚地指示渭河洪水的演变。

During the last 1 Ma,Zhongtan underwent nine moist hot-dry cold cycles,three winter monsoon intensifications,and three extremely dry events.

在过去1 Ma以来，中滩黄土及河漫滩剖面的地层特征、粒度曲线表明其记录了9个湿热干冷气候旋回，3次冬季风强化阶段，存在着3次极端干旱事件。

In application, the first coarse seismic facies classification effectively identified the channel, erevasse-splay, natural levee, alluvial flat and other subfacies etc, and the second fine reclassification aimed to the classified channel further identified the lateral bar, mid-channel bar, main channel sand body and other microfacies of a fluvial channel.

通过实际应用指出，初次的相对较粗的地震相分类研究可以有效地区分出了河道、决口扇、天然堤、河漫滩等沉积亚相，而针对刻画出的河道的再次地震相分类研究则可以有效地区分出了边滩、心滩和主河道砂体等沉积微相，并初步证实了地震相再分类研究在客观刻画地质体细节方面的优势。

Piranhas are freshwater fish that are found in rivers and floodplains of South America.

比拉尼亚鱼是淡水鱼，他们被发现在河中和南美的河漫滩。

The lowest parts of the flood plain may form "back-swamps".

河漫滩最低的部分可以形成河漫滩沼泽。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失