查询词典 sediments

40Ar/39Ar dating of detrital white mica from Cenozoic sediments from the Qaidam Basin in western China yielded several age groups, including: 1 350～450 Ma, 2 220～280 Ma, 3 122～140 Ma, and 4 ~500 Ma.

摘 要：对柴达木盆地新生代沉积物的碎屑白云母40Ar/39Ar年龄测试获得4组年龄峰值：1） 350～450 Ma； 2 220～280 Ma； 3 122～140 Ma； 4 ~500 Ma。

The sediments are detrital and largely of greywacke facies.

沉积岩为碎屑质，大部分属于杂质砂岩相。

P richment of surface sediment is possibly related to early diagenetic processes of P in the sediments.

表层沉积物磷的富集与磷的早期成岩行为存在密切关系。

In this study, on the basis of the grain size analysis using the laser diffract instrument and sieve-pipette methods for several model sediments, the two sets of grain size parameters are compared and the differences between the two methods are analyzed.

为了解激光粒度仪法和传统的筛析－沉降法在模型沙粒度测量方面的差异，用这两种方法对几种模型沙样品分别进行了粒度分析。

The percentage of Spiniferites spp.is low in the sediments of the Last Glaciation and Younger Dryas and highest in the early Holocene.

为优势的孢囊组合和较高的淡水绿藻输入通量反映了早全新世夏季风强盛及表层海水较暖，Spiniferites spp。

Three short geomagnetic excursions, the Go thenburg, Mono Lake and Mungo in the Brunhes Positive Polarity period, were revealed based on the studies of magnetostratigraphy, susceptibility and δ^18O of sediments in core WP 92-5 from the central temperature area of the Western Pacific Warm Pool, and the ages of them are 12.1--11.3 kaBP, 25.0--24.0 kaBP, and 31.0--28.0 kaBP respectively. Furthermore, the Younger Dryas and Heinrich cold events were also discovered in this core by the susceptibility record.

通过西太平洋暖池温区中心WP92－5柱样沉积物磁性地层学、磁化率和δ^18O等测试与分析，获得了布容正极性期内哥德堡、莫诺湖（Mono Lake和蒙哥（或Maelifell3个短暂的地球磁场漂移，它们发生的时间约12.1-11.3，25.0-24.0和31.0-28.0kaBP；并从该柱样的磁化率记录中发现Younger Dryas和Heinrich冷事件沉积层。

The achievements have been made such as the records revealed by climatic proxies,show the instability of the East Asian monsoon climates and warm phases; a short term warm event and a cold reversal before the termination of the penultimate; cold Henrich fingerprint in lake sediments of the Tibetan Plateau; the instability of oxygen isotope stage 5e and Holocene climates; the spatial variability of East Asian monsoon precipitation during the Younger Dryas and the increased variability of the recent centennial East Asian monsoon precipitation.

发现在倒数第二次冰期结束前一次持续时间非常短暂的气候温暖事件和寒冷回返事件，发现我国青藏高原湖相沉积物中保存了Henrich寒冷事件的烙印、氧同位素阶段5e和全新世的不稳定性，Yonger Dryas东亚季风降水的空间变率以及最近100年东亚季风降水变率增大等。

It is made up of two excluding each other ichnocoenosis, namely epibenthic and endobenthic ichnocoenosis; The third one is quite monotony in fossil types, mainly of trails left behind by sediment-eating or detrital-eating animals grazing or feeding along the surfacial layer or on the surface of the sediments.

包括两个相互排斥的群落，底表生物遗迹群落和底内生物遗迹群落；第三个遗迹组合类别十分单调，主要为食沉积物或食碎屑性动物沿沉积物表面或表层牧食或觅食过程中留下的痕迹。

Collect geological samples, faunal materials, botanical specimens, and sediments samples.

收藏地质样品、动物区系的资料、植物学的样品和沉积样品。

Data analysis shows that the total amount of PAHs in the sediments of north Taihu Lake is obviously higher than that at the central and south Taihu Lake, and that there is a little difference between the contents of PAHs of high molecular weight and low molecular weight, while the ratio of PAHs varies in different sections of the lake. Through the statistical analysis of the ratio of fluoranthene to pyrene, it is concluded that PAHs mainly come from oil burning with part of them from coal and wood burning.

分析结果表明，太湖北部的多环芳烃总量明显高于中部和南部，低分子量多环芳烃与高分子量多环芳烃的含量差别不大，但在地域上比例有所变化；根据荧蒽/芘的比值统计，多环芳烃主要来源于石油燃烧，部分为煤和木材的燃烧形成。

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。