锆石

Based on the discrimination of the previous data, thirteen granites plutons are selected to be dated by high precision single grain zircon U-Pb method and one pluton is selected to be dated by Rb-Sr and Sm-Nd internal rock-mineral isochron.

本文在充分了解和掌握前人资料和研究成果的基础上，挑选了13个花岗岩体进行了详细的单颗粒锆石U-Pb定年，一个岩体进行了全岩—矿物Rb-Sr和全岩—矿物Sm-Nd内部等时线定年。

SHRIMP zircon U-Pb dating for the west end of Tiding ophiolite yields a 128±2 Ma age for gabbros.

对日喀则西侧吉定蛇绿岩辉长岩中锆石的SHRIMP U-Pb定年确定其形成于128±2Ma。

Step-wise evaporation 207Pb-206Pb dating has been conducted for uni-genetic magmatic zircons from quartzofeldspathic gneiss and pegmatite, respectively, from Guandi complex, sporadically outcropped around Fangshan pluton in Zhoukoudian area, western Hills of Beijing.

北京西山周口店地区房山岩体周围关坻杂岩的长英片麻岩和伟晶岩脉具有类似简单岩浆结晶成因锆石的蒸发法Pb-Pb年龄。

New zircon U-Pb ages of the Chongjiang and the Qulong ore-bearing porphyries in the Gangdese porphyry copper belt are analyzed by using ELA-ICP-MS dating technique.

利用ELA-ICP-MS分析技术对冈底斯斑岩铜矿带冲江及驱龙含矿斑岩体进行锆石U-Pb年龄测定，所得到的年龄分别为14。

Tiny slivers of diamond forged on an infant Earth may contain the earliest traces of life, a study has shown.

经过雕琢地球初期的钻石小薄片，可以见到生命的痕迹。锆石晶体被定年为44亿年前。

With hand-set white and black zirconia,on a 40/42cm Snake chain in 925 sterling silver.

手工精致之白色及黑色锆石镶嵌，40 / 42 厘米，蛇形錬为925纯银精制。

Belcher chain is composed of a black, drop-shaped zirconia surrounded by

这款光彩夺目的925纯银颈链，配以搪瓷及黑色锆石吊坠，闪闪生辉，助您展现动人美态。

Zirconolite rich ceramics and Perovskite rich ceramics are fabricated for the incorporation of simulated trivalent actinide wastes, and the physical properties、XRD、SEM and durability tests are performed.

针对模拟三价锕系元素的固化，分别合成了富钙钛锆石固化体和富钙钛矿固化体，并对其主要性能进行了分析和比较，为其对三价锕系元素的固化提供了依

Today, Earth teems with thousands of kinds of minerals, from agates to zircons.

今天，地球充满从玛瑙到锆石等成千上万种矿物。

The CZ 805 (which is apparently dubbed as "CZ 805 BREN A1" in Czech sources) is a modular weapon of modern appearance.

长征805（这显然是代号为&锆石805布伦A1&的捷克来源）是现代的外观模块化武器。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。