| Geochemically, the pyroxene nephelinite is highly enriched in LILE compared with the first one. |
| The most fundamental characteristic of tholeiites is the presence of a low-Ca pyroxene. |
| Major mineral phases include plagioclase and pyroxene, with small amounts of opaque minerals, olivine, apatite, and sometimes biotite. |
| This sample contains large plagioclase and pyroxene crystals, some of which have a sponge-like texture. |
| Extreme cases are found in mineral groups such as apatite, amphibole, pyroxene, feldspar, and tourmaline. |
| This is consistent with the fact that olivine is typically entrapped in pyroxene and amphibole crystals. |
