查询词典 varve

This paper discusses the research carried out on the Lake Sugan, in the northern margin of Chaidam Basin. The climate and environmental changes in Lake Sugan drainage area over the past 2670 years were studied using the varve dating of the well preserved lamination sediments in core SG03I taken from the center of Lake Sugan, the study of varve formation in modern lake system and modern process study of carbonate and oxygen isotopes of the water within the drainage area, and according to the main index of the stable isotopes of carbonate sediments synthesized other index analysis.

本文以柴达木盆地北缘苏干湖为研究对象，通过对湖泊中心位置SG03I孔保存完好的纹泥沉积物岩芯进行年代学研究，对湖泊现代沉积过程及碳酸盐、流域水体同位素进行现代过程研究，以沉积碳酸盐稳定同位素指标为主，结合其它代用指标的综合分析，探讨苏干湖流域近2670年来的气候与环境变化，综合区域其它记录对苏干湖流域晚全新世气候变化的驱动机制进行探讨，获得如下认识：1、柴达木盆地北缘苏干湖若干钻孔岩芯发现，水深大于3.0m的沉积物均具有裸眼可分辩的由深色层和浅色层组成的纹层层理。

Using this varve dating results, we calibrate the other dating methods (radiocarbon dating and U-series dating) which were carried out in Lake Sugan. It was found that in the Little Ice Age with clastic varve type, radiocarbon dating has 2630 years radiocarbon reservoir effect, while beyond the LIA, the radiocarbon reservoir changed as the time passed.

通过已经得到验证的年纹层年龄-深度序列，对苏干湖其它测年手段~(14C测年和铀系测年进行验证，发现在碎屑类纹层沉积阶段即小冰期阶段，水生植物残体的~(14)C测年存在2630年碳库效应，小冰期以外时段碳库效应责随时间变化。

He is a smart guy with a great varve.

他是一个具有大气魄的聪明人。

The variation of varve thickness may show a decrease of sediment flux during the Little Ice Age, and an increase of sediment flux after 1960s.

但纹层厚度的变化可能揭示出小冰期沉积通量的减少和上个世纪六十年代之后沉积通量的增加。

Varve dating is exact and varve sediments can offer an effective means of acquiring highquality palaeoenvironmental records.

印证了纹层计年的精确性，完全可以建立高分辨率时间序列。

The aeolian silty sand in shale can provide good guide to study of paleoclimate about lacustrine shale and varve, and to reconstruct sedimentary environment of paleolake accurately.

页岩中风成粉砂沉积的发现，可以进一步为研究有关湖相页岩和第四纪纹泥的古气候变化、正确恢复古湖泊沉积环境提供良好的指标。

In addition , By calculating of 210Pbex , 5.5 cm depth corresponds with the 1962. As a result, 210Pbex and 137Cs dating show a good agreement with the varve dating.

另外据210Pbex比活度CIC模式，5.5 cm处约为1962年，这和137Cs比活度曲线的1963年时标相一致。

The varve was also well preserved in the sediment core of the Sihailongwan maar lake. Volcanic ash was recognized in the sediments of the Sihailongwan maar lake in the Longgang volcanic field of NE China. Volcanic ash studied is located in 70 cm below...

这一结果不仅表明天池火山历史时期大喷发的规模比原来估计的还要大，并且为建立千年以来四海龙湾沉积物及古气候演化的时间标尺提供了依据。

Detailed investigations were carried out on the upper undisturbed sediments from Erlongwan maar lake, NE China, which are better annually laminated sediments. Varve couple appears as darkand lightcoloured layers.

通过对东北二龙湾玛珥湖顶部无扰动岩心显微研究，证明此岩心发育有良好的年纹层。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。