查询词典 zircon

A forof single zircon U-Pb dating and whole rock isochron of Sm-Nd dating suggested that thePalooproterosoic rock in Chthaysia Bfork is formed in the time span from 2 400 Ma to 2000 Ma,Mesoproterocoic frOIn 1 400 Ma to 1000 Ma and the latest formdfrom 740 Ma to 430 Ma.

该区变质基底的时代划分、区域对比、基底结构和性质一直存在较大的分歧和争论，最早Grabau（1924）认为中国东南沿海存在太古代的基底，提出华夏古陆的概念匕］。

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。

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。

Thus wetted the clusters are stuccoed with silica sand or zircon sand.

因此，湿集群是stuccoed与石英砂或锆石砂。

Production and operation of the Company's jewelry / accessories cover has: 18K gold, 14K gold, 9K gold, silver, 925 silver, copper, 316L stainless steel, alloy;(gemstones / semi-precious stones in part): diamond, white zircon, Cai zirconium, stained glass, agate, crystal,, Opal, turquoise, black Tahitian pearls, imported high-grade shells, coral and natural all over the world, such as miscellaneous total more than 200 kinds of stone.

本公司生产经营的首饰/饰品涵盖有：18K金、14K金、9K金、纯银、 925银、铜、316L不锈钢、合金；：钻石、白锆、彩锆、彩色玻璃、玛瑙、水晶、虎眼石、猫眼石、松石、大溪地黑珍珠、进口高档贝壳、珊瑚以及世界各地的天然杂石等共有200多种。

Major operations, agate,, Zircon, Opal, crystal, colorful stones, the Persian Gulf, Burma Jade, bracelet, in addition to operating a variety of silver bracelets, necklaces, bracelets

主要经营，玛瑙，虎眼石，锆石，猫眼石，水晶，五彩石，波斯湾，缅甸玉，手链，另外还经营各种银手镯，项链，手链

For example, alkaline elements can affect diffusion velocity of Zr, Si and O ions although these alkaline elements cannot exist in crystal structure of zircon. However, K rich media and Na rich media exert different effects on the growth of crystal form: in the K rich media, growth speed of prism faces in the vertical direction is much higher than that of pyramid faces, and {111} growth speed in the vertical direction is higher than {311},which decides the formation of bipyramids dominated by {311} pyramids; in the Na rich media, both prism and pyramid grow to a certain extent, but the former is smaller than the latter.{100} growth speed in the vertical direction is lower than {110}, while {111} growth velocity in the vertical diredtion is lower than that of {311},resulting in the growth of the crystal form characterized by {100} short prism and {111} pyramid.

例如，尽管碱性元素并不进入锆石晶格，但它们可以影响Zr、Si、O离子的扩散速度，但是富钾和富钠的介质对锆石晶形发育的影响是有差别的，表现为：在富钾的介质中，将导致柱面的法向生长速度较锥面快得多，而锥面中，｛111｝的法向生长又较｛311｝快，由此决定了形成以｛311｝锥为主的双锥状晶体；在富钠的介质中，柱面和锥面都有一定程度的发育，但前者弱于后者，而柱面中，｛100｝的法向生长较｛110｝慢，由此决定了形成以｛100｝柱和｛111｝锥为主的短柱锥状晶体。

The result show that the samples are compactest when a-Al2O3/ content is 10wt% at 1450℃, zircon start to decomposes at 1350℃, little mullite are found at 1450℃, there are lots of mullite at 1500℃, apparent poroes become more, bulk density falls.

结果表明，1350℃时硅酸锆已经开始分解，添加a-Al2O3/为10%、温度为1450℃时烧结体最致密，相对密度达到95%，1450℃时已有少量莫来石相形成，1500℃时形成较多莫来石相，气孔增多，体积密度降低。

We want to buy Coal, Scrap Metal, Iron Ore, Iron Sand, Zircon Sand Timber Flooring Coal and Coke

我们要采购煤，小片金属，矿砂，铁沙子，锆石沙子木材地板煤和可乐

A single zircon U-Pb age of 3605±43 Ma from the oldest granite-gneiss was reported in Aketashtage, eastern Altyn Tagh, which is located on the southeastern margin of the Tarim Platform.

在阿尔金山阿克塔什塔格曾测得3605±43 Ma的单颗粒锆石U-Pb年龄数据，获得了古老地壳存在的同位素年代学信息。

Chrysanthemum of 10 thousand birthday is lax to edaphic requirement, with the arenaceous qualitative loam with fecund, good drainage had better.

万寿菊对土壤要求不严，以肥沃。排水良好的砂质壤土为好。

He unstepped the mast and furled the sail and tied it.

他拔下桅杆，把帆卷起，系住。