查询词典 porphyry

Through the ReOs dating of molybdenite from quartz porphyry, the isochron age of (222.5±3.2) Ma and the model age of (222.1±3.2) Ma~(224.6±3.4) Ma were obtained, which means molybdenite formed in late Triassic.

通过对含辉钼矿石英斑岩中采集的辉钼矿样品进行铼－锇同位素年龄测定，获得铼－锇等时线年龄为(222.5±3.2) Ma，模式年龄变化于(222.1±3.2) Ma~(224.6±3.4) Ma，表明辉钼矿形成时代为晚三叠世。

The 207Pb/206Pb age (593Ma) of single zircon of quartz-syenite porphyry reflects that the intrusion of subvolcanics is accompanied by capture of paleo-zircon of the basement rocks, implying that the Precambrian continental basement possibly exists below Aqishan-Yamansu volcanic island arc.

而石英正长斑岩单颗粒锆石207Pb/206Pb年龄值(593Ma)反映了岩体侵位过程中捕获了基底岩石中古锆石的年龄信息。进一步推测在阿齐山－雅满苏火山岛弧之下可能存在前寒武纪陆壳基底。

Tin-bearing porphyry ; isotope ; material source ; South China

含锡斑岩；同位素；物质来源；华南

The REE distribu- tion curves of Archaeozoic metamorphic rocks,Proterozoic granite,Tertiary basalt, Mesozoic granite,granite-porphyry,rhyolite,tuff,and gold ores are of right inclinnation, which indicates they enrich LREE and have completely similar Ce negative anomaly.

研究表明：太古代变质岩、元古代花岗岩、中生代花岗岩及花岗斑岩、流纹岩和凝灰岩、第三纪玄武岩及金矿石的稀土配分曲线均为右倾斜型，即富轻稀土，都有十分相似的 Ce 负异常。

Each of the lands beneath his High Ward had also sent some thing of mighty craft, that Prester John might carry it with him to Heaven-a robe of precious Pisa-island silk from Perdruin, a white porphyry Tree from Nabban.

在国王棺木里，他身下的每一处，放的是上等的工艺制品，长老John或许会将之带入天堂--Perdruin民族送来的珍贵Pisa岛丝绸做成的长袍，从Nabban民族送来的白色斑岩雕成的树。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷