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

包括辉、易变辉、和长等火成岩，来自于推积性的喷发。

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

堆积的长在位于侵蚀假整合之上的F单元的基底现。

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

长中钠长组分逐渐增多，钙长组分逐渐减少，最终形成纯钠端元的钠长。

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

安粗岩中包含长（中长或奥长），是在正长和普通辉组成的细粒基质中的大单晶体（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 ...

晕彩钠长和晕彩拉长都属长系列,但却是两个不同的宝品种。

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，长的钠长化可见于成岩早期，而钾长的钠长化只发生于成岩晚期。