查询词典 apatite

The mineral inclusions mainly include rutile, zircon, apatite, biotite, spinel and so on.

其矿物包裹体有金红石、锆石、磷灰石、云母以及尖晶石等。

The presence of REE tetrad effects in apatites and whole rocks of S-type granites has been reported by Sha and Chappell (1999) and Zhao et al.(1999), respectively. The REE tetrad effect in minerals, such as apatite, spessartite, beryl, alkali feldspar and spodumene, from all zones of Altay No. 3 pegmatite has been found remarkable, and the fractionations among isovalent incompatible elements in these minerals are also significant. This paper puts forward that the REE tetrad effect is one of the basic features of peraluminous melts and the origin of REE tetrad effect might be probably related to some processes prior to the formation of pegmatite magma. The immiscibile liquid separation between silicate melt and hydrosaline melt may be responsible for it.

由于阿尔泰3号伟晶岩脉各带磷灰石以及与其共生的石榴石、绿柱石、碱性长石、锂辉石矿物均存在明显的稀土"四重效应"以及相同电价、相似离子半径的不相容元素间存在显著的分异，并结合最近赵振华等(1999)和Sha and Chappell(1999)报道S型花岗岩全岩和单矿物(磷灰石、独居石、长石、黄玉等)均存在稀土"四重效应"这一现象，本文研究提出，稀土"四重效应"是富挥发分过铝质岩浆体系的一个基本特征，其机制既不可能由含稀土的副矿物早期结晶引起残余熔体相中REE含量变化的结果，也不能定性地归因于流体相与熔体相相互作用过程中稀土元素在流体/熔体之间分异的结果，而很可能与伟晶岩岩浆形成之前某些过程密切相关，S型花岗岩岩浆在液相线以上存在硅酸盐熔体与高盐熔体的不混溶液相分离有可能是过铝质岩浆体系产生稀土"四重效应"的主要原因。

The fission track age of the apatite from a drill core sample ZK2304-85 is 134±11Ma.

我国的大陆科学钻将在江苏东海实施。

The high temperature of drying GFCMP results in the devitrification of final product with the of fluor apatite and quartz, and greatly lowered dissipation in water, based on Xray diffractionanalysis.

通过圆盘式破碎机湿料破碎及喷流传热恒温干燥这 2项关键技术创新，对原 2万 t/ a粒状钙镁磷肥生产工艺进行了改进使之达产，并使产品完全避免了反玻璃化，达到国际市场的品质要求。

The LREE enrichment may partly be caused by the presence of microscale LREE-bearing mineral inclusions (such as apatite, monazite or epidote) in the zircons.

对于具有普遍提高的LREE、Th、U、HREE和HFSE含量的海绵状变质锆石，不可能仅仅与常见的热液流体有关。

To evaluate the bioactivity of the glass-ceramics,the specimens were soaked in the simulated body fluid. The results indicate that fluorapatite shows needle-like microstructure, which is similar to that in human bone and teeth. The formation of needle-like fluorapatite is related to the heat treatment procedure, which results in needle-like fluorapatite crystals by accelerating one-dimension growth along the c-axis through the screw dislocation growth mechanism. The mechanical properties of the glass-ceramics are close to those of the human bone and teeth. The bioactivity test results show that apatite layer is precipitated on the materials surface after 3 d immersion in SBF, which indicates the glass-ceramics have a good bioactivity.

研究结果表明：氟磷灰石相呈针状，与人体骨和牙齿的磷灰石形貌相似，有利于提高材料的生物活性和生物相容性；氟磷灰石的形成是材料被迅速加热至高温进行热处理，使磷灰石以螺旋位错生长机制沿c轴晶化长大所致；经热处理获得的材料具有优良的力学性能，基本满足骨科和齿科用生物材料的性能要求；材料在体外模拟体液中浸泡3 d后，样品表面已有磷灰石层生成，表明该材料具有较高的生物活性。

SEM studies of all the three types demonstrate that this colloidal mineral is made up primarily of supermicroscopic low-carbonate fluorapatite aggregates, phosphate microframboids, and radiated fibrous apatite.

对不同矿石类型中胶磷矿做扫描电镜研究，得知胶磷矿主要由超微晶低碳氟磷灰石集合体、磷酸盐显微莓群以及纤维放射状磷灰石等构成。

This suggests that,even under high water fugacity,substantial crystallization of apatite during early stage of magmatic evolution is able to prevent some arc magmatism from evolving into adakitic rocks.

这进一步表明，即使在高水逸度的条件下，磷灰石在岩浆早期的大量结晶可以有效地阻止一些弧岩浆演化成为埃达克质岩石。

The high content of fluorine is closely related to the mixed-layer minerals of illite and smectite, apatite, hornblende, and K-feldspar.

拌煤黏土中高含量的氟主要与伊蒙混层矿物、磷灰石、角闪石和钾长石等密切相关。

Heavy mineral analysis to Yunchi Group and Shanxiyao Group shows that contents of zircon, rutile and apatite have positive relationship, and no hornblende and pyroxene can been found in sediment.

这种沉积及古地理演化特征说明，在中更新世早期以前，不存在大河体系在该区的切割和疏淘作用。

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。