交代

I'm not answerable to you for my every movement.

我无须每一个动作向你作出代。

Electronmicroscopic examination shows that Ti-oxide (rutile or anatase) is replaced by brannerite, indicat-ing the metasomatic origin of brannerite.

在电镜下观察到钛铀与钛的氧化（金红石或锐钛）成代关系，说明钛铀是代成因的。

The types of deposits basically are differential metasomatism in the later magma, pneumatolytic hydrothermal process, pegmatite process, residual deposits and placer deposits.

床类以岩浆晚期代、气成热液、伟岩、风化壳和砂主。

When metal-bearing solution moved along deep faults to cavities or frac tures, the metal cations reated with pyrite and organic matter and precipitated as sulfid...

在构造减压带中，铅锌配合物代地层中的黄铁或被有机质还原而沉淀富集。

There is an obvious rock zonation from the middle to bothsides of the structural shatter zone, generally from marialite orebody through diopside-felsite,biotite-albitite to the host Proterozoic rocks.

构造破碎带的岩石具有明显的对称带性：破碎带的中心钠柱石体，向两侧依次榍石透辉石长英岩带、黑云母钠长岩带，并逐渐过渡围岩。钠柱石的成因类沿构造破碎带产出的热液代脉。