plagioclase

Plutonic rocks consisting of pyroxene, pigeonite and plagioclase, the source of cumulate eucrites.

包括辉石、易变辉石、和石等火成岩，来自于推积性喷发。

Cumulate plagioclase appears abruptly at the base of the F unit, which rests on an erosional disconformity .

堆积石在于侵合之上F单元基底突然出现。

The albite component increases while anorthic component decreases in detrital plagioclase.The plagioclase turned into an end - member component of albite.

石碎屑中钠石组分逐渐增多，钙石组分逐渐减少，最终形成纯钠端元钠石。

Latites contain plagioclase feldspar (andesine or oligoclase) as large, single crystals (phenocrysts) in a fine-grained matrix of orthoclase feldspar and augite.

安粗岩中包含石（中石或奥石），是在正石和普通辉石组成细粒基质中大单晶体（斑晶）。

Albite and labradorite both belong to plagioclase series, but they are the two different varieties.According to the characters of inclusion and transparency, iridescent ...

晕彩钠石和晕彩拉石都属石系列,但却是两个不同宝石品种。

Therefore, the albitization of plagioclase is shown in the early stage of diagenesis and albitization of potash feldspar appears only in the late stage of diagenesis.

因此，石钠石化可见于成岩早期，而钾石钠石化只发生于成岩晚期。