| Drilling showed that the troctolite body is 330 metres thick and is underlain by foliated leuconorite to norite and massive anorthosite. |
| There is some grain size reduction of the troctolite adjacent to the anorthosite, indicating a chilling effect. |
| The youngest sills are undeformed and crosscut older foliated troctolite sills, which in turn crosscut isoclinally folded hybrid gabbro-troctolite-anorthosite complexes. |
| Metasomatic anorthosite formed by replacement of layered gabbroic troctolite in the Skaergaard intrusion is shown here. |
| Similar advantages in melt behaviour are also achieved by using troctolite as the iron and magnesium source rather than traditional materials. |
| Some parts of the troctolite consist of interlayered olivine-rich troctolite and anorthosite. |
