查询词典 zircon

2The studies on the appearance typomorphism, physical typomorphism, inner structure typomorphism and chemical typomorphism of the zircon and garnet, and the result of U-Pb isotopic age dating of zircon indicate that the zircons are meta-morphogenic genesis but two or three of them are magmatic genesis and most meta-morphogenic zircons have a basic magmatic zircon core which was generated in Stage of Yanshand and Indo-Chinese epoch. The genesis and origin of the garnet is very complicated. The garnets are main almandine with high Fe and Mg content and were proposed their souce rocks are mostly regional mid-degree-metamorphic rocks.

2研究锆石和石榴石的形貌标型、物性标型、内部结构标型以及成分标型特征和锆石U-Pb同位素测年结果表明，锆石除少数几个为岩浆锆石外，绝大多数是变质锆石，且中间多有形成于燕山-印支期的基性岩岩浆锆石残核；石榴石的成因及来源是比较复杂的，以铁铝榴石为主，且铁铝榴石中Fe、Mg的含量较高，推测其源区母岩主要以中级区域变质岩为主。

However , it is also important to know that zircon is not the oft seen diamond imposter , cubic zirconia

第一次正式使用" zircon "是在1783年，用来形容来自斯里兰卡的绿色锆石晶体。

The results indicated that the zircon phase is the major phase for the as-gained waste forms although containing 20mol% Eu3+. The alteration of 10-5~10-4 nm magnitude in the crystal cell parameters was measured (cf the standard XRD card of zircon). The equilibrium concentration of Eu3+ in HCI lixivium (pH=6.5) is less than 0.4μg/L.

结果表明：固化体中虽包容有20mol%的Eu3+，但其主物相仍以锆英石物相为主，与标准样品相比晶胞参数发生10-5~10-4nm量级的微弱变化，固化体在pH=6.5的HCI浸出液中Eu3+的平衡浓度小于0.4μg/L。

Our company is a professional production of zirconium silicate, zircon flour, zircon ultrafine powder enterprises.

我公司是一家专业生产硅酸锆、锆英粉、锆英砂超细粉的企业。

The main products are ilmenite, zircon, rutile, xenotime, zircon used for glass screen of color picture tube, and zircon powder used for ceramics and foundry, etc.

主要业务是从事稀有金属海滨砂矿采、选、深加工、行业技术开发和国际贸易等，主要产品有钛铁矿、锆英石矿、金红石矿、独居石矿、磷钇矿、彩色显像管玻屏用锆英石粉、陶瓷和铸造用系列锆英石粉、低熔点玻璃用锆英石粉和高白度、高纯度超细锆英石粉等。

Currently, market demand for large blue zircon, so its price is higher than other colors of zircon.

目前市场上对蓝色锆石的需求量较大，因而其价格就高于其他颜色的锆石。

Currently, blue zircon is much more popular than white or clear zircon.

目前，蓝锆石是更受欢迎的程度或清除白色锆石。

The original Seluohe Group contains at least four parts: Late Archean metamorphic rocks (zircon SHRIMP protolith ages 2517~2534 Ma), Late Paleozoic metamorphosed volcanic-sedimentary strata (zircon SHRIMP 252 Ma), Permian gneissic granitic complex (zircon SHRIMP 260 Ma), and Jurassic mylonitized granites (zircon SHRIMP 168 Ma).

原划分的色洛河群至少由4部分组成：新太古代变质火山－沉积地层（锆石SHRIMP年龄为2517~2534 Ma）、晚古生代变质火山－沉积地层（英安岩锆石SHRIMP年龄为252 Ma）、二叠纪片麻状杂岩体（锆石SHRIMP年龄为260 Ma）和侏罗纪糜棱岩化花岗岩（锆石SHRIMP年龄为168 Ma）。

The zircon was dated by using the technique of single-zircon stepwise evaporation-deposition with a thermal ion mass spectrometry (Bernd Kober, 1986 and 1987). The zircon ages are 2.60-2.54 Ga for biotite-leptynite, 3.36-2.62 for mimatized leptite, and 3.53-3.08 Ga for quartzite from the iron formation.

用热离子质谱计双带源蒸发—沉积测定单个锆石晶体年龄的方法对弓长岭含铁建造中黑云变粒岩、混合岩化浅粒岩和石英岩中的锆石作了测定，获得了2.60—2.54 Ga，3.36—2.62 Ga和3.53—3.08 Ga等年龄数据。

The feldspars of topaz-lepidolite granite in Yashan late stage are P-rich albite and Kfeldspar, and the phosphorus goes into feldspar structure in the form of PAlSi〓 substitution. The phosphorus contents of feldspars vary according to their crystal habitus. In general, the feldspars of later generation have the higher average phosphorus content than that of earlier generation, and the albite contains higher phosphorus than the K-feldspar in the same generation. The zircon is highly rich in Hf, U, P and Al. The phosphorus enters the zircon structure mainly by the form of〓P〓〓Si〓, Al〓P〓Si〓 or P〓Al〓Si〓, Zr〓 substitution. The P-rich zircon is the production of the highly evolved magma, and it might be one of the important characteristic minerals of the high-P subtype granite. The manganocolumbite, manganotantalite, wodginite and titanowodginite are the main niobium and tantalum minerals.

雅山晚阶段黄玉锂云母花岗岩的长石矿物是富磷长石，磷以PAlSi〓替换方式进入长石结构中，并且在长石中的分布很不均一，一般是晚结晶的长石比早结晶的长石的磷含量高，同期结晶的钠长石比钾长石的磷含量高；锆石矿物为高度富铪、铀、磷和铝的锆石，磷主要以(Y， HREE， Fe)〓P〓〓〓Si〓〓、Al〓P〓Si〓〓、P〓Al〓Si〓〓Zr〓〓等替换方式进入锆石晶格中，富磷锆石是岩浆高度演化的结果，是高磷花岗岩的特征矿物之一；雅山含有丰富的磷锂铝石，是高磷花岗岩的主要磷酸盐矿物；铌—钽矿物主要有铌锰矿—钽锰矿、锡锰钽矿—钛锰钽矿、细晶石等。

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。