查询词典 sediments

Low magnetic susceptibility, low CaCO3, low organic carbon concentration, low C/A (Chenopodiaceae/Artemisia) ratio, low Sr concentration and, hence, high Rb/Sr ratio in the lake sediments indicate a cold but moist climate during the global Little Ice Age in the Daihai area.

在明确湖泊沉积物Rb/Sr比值古气候指示意义的基础上，通过AMS-14C和210Pb精确定年及12.08米岱海沉积岩心的Rb/Sr比值、碳酸盐含量和有机碳含量的变化，恢复了包括中世纪暖期、小冰期及全新世适宜期等典型气候事件在内的全新世环境演化过程，基本认识是：全新世早—中期9-3.5kaB.P。

Finally, this paper investigated the compositions, contaminative situations, speciation and release of heavy metals in contaminated sediments from Guangzhou water body.

论文最后研究了广州城市水体沉积物的组成、重金属污染状况及其形态分布和重金属的释放及其动力学。

5The distribution patterns of rare earth element compositions in the hydrothermal components are similar to that of pacific seawater. This infers the complex and significant interactions of hydrothermal fluid with surrounding seawater during its diffusing process. Dissolved trace metals in the hydrothermal fluid can be removed by settling terrigenous or biogenic particulates and precipitated quickly from the hydrothermal plume round the vent. On the other hand, hydrothermal particulates would also scavenge some elements from the seawater to coprecipitate into the sediments.

5岩芯沉积物中热液源组分携带的稀土元素组成具有类似海水的分布模式，反映了热液流体喷出海底后与其它物源物质之间的复杂的相互作用：一方面大量生物和陆源碎屑物质的快速沉积导致溶解态的热液源物质被快速清扫，无法向外扩散，快速堆积在热液喷口附近；另一方面，随热液羽状体向外扩散的颗粒态热液源物质也清扫海水中的元素共同进入沉积物。

The oldest sediments cored to date are about 150 million years old .

到目前为止取出的最老沉积物的岩心是大约1.5亿年以前的生成。

A small amount of Crossite and Fairfieldite were found in some samples of sediments.

在一些底质样品发现存在少量铝铁闪石和磷钙锰石。

The result is supported by the distribution of suspended sediments sampled in different time, the changes of the deltaic flat and distributing model from satellite images.

不同时期实测泥沙分布，岸线变化及卫片的泥沙分布型式证实了上述结论。

It indicated that deltaic depositional system、 lake sediments and landslide slump fan are the main sedimentary system of Chang 6 in Yichuan-Xunyi district.

结果表明，长6油层组主要发育三角洲沉积、湖泊沉积和湖底滑塌扇沉积。

The Triassic SI segment in the study area is a deltaic plain sediments, and because of inadequate exploration wells, it is difficult to figure out the river channel distribution and sand development characters.

研究区三叠系SI段为三角洲平原沉积，由于区块探井密度低，准确把握分流河道展布方向及砂体发育特征难度大。

The fault, stretching about 20km, with strike NE45° and dip NW, is situated in the place between the bed rock and Quaternary sediments. Fault deltidial surface and scratch can be seen at the bare bed rock of bottom wall.

之间。断裂位于台地前缘基岩与盆地南缘第四纪沉积层之间，断裂延伸约20km以上；断裂下盘基岩一侧有清楚的断层三角面和断层擦痕等，断层走向NE45。

The sediments from the Yangtze Estuary transport into the Hangzhou Bay by densimetric flow through the passage.

通过进一步研究还发现，长江口泥沙以异重流的方式向杭州湾输移。

Go to your desktop and right click in a blank space.

请到您的桌面，然后右击一个空白。

Tara appears in Buddhism, Jainism, and particularly, Tibetan Lamaism, as a complex array of manifestations: goddess of ascetism and mysticism, mother creator, protectress of all humans as they cross the sea of life.

度母出现在佛教，耆那教里面，尤其是西藏的喇嘛教，作为一系列的陈列阵容；神秘的女神，创世之母，人类横过生命之海洋的女性保护者。