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The paleochemical characteristics of paleoseawater from the Permian conodont were reconstructed through contrastive researches of REE and Ce anomalies. The resuts show that geochemical characteristics of the conodont may be regarded as a useful proxy to reconstruct the paleoenvironment.

此外，作者对牙形石的稀土元素组成进行了分析，并且发现牙形石的REE组成和Ce异常与古海水氧化还原条件有一定的相关性，可以指示古海水的信息。

This paper analyzed the carbon isotopic ratios of tw o cryptoMeria, collecting froM West TianMu Mountain, Zhejiang, and studied th e t ree-ring carbon isotopic ratios evidence, for the atMospheric CO2 concentrati on change after Industrial Revolution.

植物在同化大气CO2过程中产生碳同位素分馏，因此，树轮中稳定碳同位素比值（1 3C/12C）不仅是重建古气候的工具，也是过去大气CO2浓度变化的敏感指示器。

Under the guidance of the famous professor, she finally got the doctorate deg ree of cambridge.

在那个著名教授的指导下，她终于拿到了剑桥大学的博士学位。

The diorite enclaves and granites in Middle Jurassic share the same REE and trace element pattern.

随着SiO〓含量增高，P和Ti负异常及Th和K正异常越来越显著。

EREE distribution of the surface sediments in Chukchi Sea, high-values are mainly located in the southwest area adjacent to the west and north of Point Barrow area, a significant low in the area of Central. DREE distribution of surface sediments in Bering Sea, the central REE values area higher than that two sides.

楚科奇海表层沉积物中∑REE的分布，高值区主要分布在海区西南侧、西侧和巴罗角以北海域，低值区重要分布在海区中部；白令海表层沉积物中∑REE的分布，南北两侧较中部采样站位值低。

EREE distribution of the su***ce sediments in Chukchi Sea, high-values are mainly located in the southwest area adjacent to the west and north of Point Barrow area, a significant low in the area of Central. DREE distribution of su***ce sediments in Bering Sea, the central REE values area higher than that two sides\'.

楚科奇海表层沉积物中∑REE的分布，高值区主要分布在海区西南侧、西侧和巴罗角以北海域，低值区重要分布在海区中部；白令海表层沉积物中∑REE的分布，南北两侧较中部采样站位值低。

Ferromanganese crust samples in Central Pacific area and West Pacific area were analyzed structurally and the REE contents were determined with the ICP-MS method.

主要对中太平洋和西北太平洋5座海山的17个铁锰结壳新壳层样品进行了结构构造分析和REE含量测定。

However, the difference between Hongge and Xinjie is also apparent, perhaps reflecting the source difference in the mantle. Relative to the Hongge intrusion the Xinjie intrusion is more depleted in Nd isotope ratio and enriched in REE and LILE. The Xinjie intrusion plots in the first quadrant in Sr-Nd diagram, which shows the Sr isotope-enriched and Nd isotope-depleted slightly feature. This indicates that the source of the Xinjie intrusion may had the mantle wedge signature.

但红格、新街岩体的源区又有所不同，新街岩体较红格岩体Nd同位素更亏损，稀土和大离子亲石元素更富集；新街岩体在Sr-Nd相关图上，位于第一象限，显示Sr同位素富集，Nd同位素略亏损特征，指示了新街岩体的源区可能有残留地幔楔的成分。

Brian Shoemaker is the owner of the cheap web hosting directory Find-A-Web-Host.com (offering a f ree script installation when you choose a web host from the directory) with web hosts offering af fordable web hosting .

布赖恩鞋匠，是业主的廉价虚拟主机目录找到一位网络host.com （提供 f稀土元素脚本安装当您选择一个网页主机从目录中）与Web主机提供自动对焦fordable网页主机。

The distributive characteristics of Sr, Sc, K and REE such as Ce, Y are consist with Ca to some degree. Which means those elements host in Ca〓 sites of francolite. Certainly, other sites of these elements are still exist. It is sug gested that the change of mieroenvironment is the cause of the variation of Mn.

Sr、Sc、K及稀土元素Ce、Y在结核内的分布形式在一定程度上与Ca的位置，当然，它们还有其它赋存形式，Mn的变化可说明了磷结核形成作用过程中微环境发生了一定的变化。

So it was last week in Selma , alabama.

上星期在亚拉巴马州塞尔马市发生的事件也是这样一个转折点。

The group also spearheads various social programs in China.

该组织还带头参与中国的各种社会活动。