Early attempts applying the Sm-Nd isotope system to garnet and clinopyroxene were encouraging and often yielded dates considered as representing near-peak P-T conditions. |
A bleb of glass with clinopyroxene and plagioclase is located below and to the right of the large plagioclase phenocryst. |
Detailed elemental and isotopic studies of this crystal fractionation pathway have indicated the importance of mafic phases, notably calcic clinopyroxene and biotite. |
The rock consists of plagioclase, K-feldspar, quartz, clinopyroxene and biotite, with abundant apatite, and ilmenite. |
The crustal differentiation processes were dominated by fractionation of olivine, chrome spinel, plagioclase and clinopyroxene, leading to evolved compositions. |
The pegmatite is composed of microcline, plagioclase and quartz with minor amounts of clinopyroxene, orthopyroxene, ilmenite and zircon. |